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root/radiance/ray/src/util/ranimate.c
Revision: 2.50
Committed: Mon Sep 12 14:40:14 2005 UTC (18 years, 7 months ago) by schorsch
Content type: text/plain
Branch: MAIN
Changes since 2.49: +10 -9 lines
Log Message:
Using RT_PID instead of int.

File Contents

# Content
1 #ifndef lint
2 static const char RCSid[] = "$Id: ranimate.c,v 2.49 2005/02/07 17:08:17 greg Exp $";
3 #endif
4 /*
5 * Radiance animation control program
6 *
7 * The main difference between this program and ranimove is that
8 * we have many optimizations here for camera motion in static
9 * environments, calling rpict and pinterp on multiple processors,
10 * where ranimove puts its emphasis on object motion, and does
11 * not use any external programs for image generation.
12 *
13 * See the ranimate(1) man page for further details.
14 */
15
16 #include "copyright.h"
17
18 #include <stdio.h>
19 #include <ctype.h>
20 #include <sys/stat.h>
21 #include <time.h>
22 #include <signal.h>
23
24 #include "platform.h"
25 #include "rtprocess.h"
26 #include "paths.h"
27 #include "standard.h"
28 #include "view.h"
29 #include "vars.h"
30 #include "netproc.h"
31 /* default blur samples */
32 #ifndef DEF_NBLUR
33 #define DEF_NBLUR 5
34 #endif
35 /* default remote shell */
36 #ifndef REMSH
37 #define REMSH "ssh"
38 #endif
39 /* input variables (alphabetical by name) */
40 #define ANIMATE 0 /* animation command */
41 #define ARCHIVE 1 /* archiving command */
42 #define BASENAME 2 /* output image base name */
43 #define DBLUR 3 /* depth of field blur */
44 #define DIRECTORY 4 /* working (sub)directory */
45 #define DISKSPACE 5 /* how much disk space to use */
46 #define END 6 /* ending frame number */
47 #define EXPOSURE 7 /* how to compute exposure */
48 #define HOST 8 /* rendering host machine */
49 #define INTERP 9 /* # frames to interpolate */
50 #define MBLUR 10 /* motion blur parameters */
51 #define NEXTANIM 11 /* next animation file */
52 #define OCTREE 12 /* octree file name */
53 #define OVERSAMP 13 /* # times to oversample image */
54 #define PFILT 14 /* pfilt options */
55 #define PINTERP 15 /* pinterp options */
56 #define RENDER 16 /* rendering options */
57 #define RESOLUTION 17 /* desired final resolution */
58 #define RIF 18 /* rad input file */
59 #define RSH 19 /* remote shell script or program */
60 #define RTRACE 20 /* use rtrace with pinterp? */
61 #define START 21 /* starting frame number */
62 #define TRANSFER 22 /* frame transfer command */
63 #define VIEWFILE 23 /* animation frame views */
64
65 int NVARS = 24; /* total number of variables */
66
67 VARIABLE vv[] = { /* variable-value pairs */
68 {"ANIMATE", 2, 0, NULL, onevalue},
69 {"ARCHIVE", 2, 0, NULL, onevalue},
70 {"BASENAME", 3, 0, NULL, onevalue},
71 {"DBLUR", 2, 0, NULL, onevalue},
72 {"DIRECTORY", 3, 0, NULL, onevalue},
73 {"DISKSPACE", 3, 0, NULL, fltvalue},
74 {"END", 2, 0, NULL, intvalue},
75 {"EXPOSURE", 3, 0, NULL, onevalue},
76 {"host", 4, 0, NULL, NULL},
77 {"INTERPOLATE", 3, 0, NULL, intvalue},
78 {"MBLUR", 2, 0, NULL, onevalue},
79 {"NEXTANIM", 3, 0, NULL, onevalue},
80 {"OCTREE", 3, 0, NULL, onevalue},
81 {"OVERSAMPLE", 2, 0, NULL, fltvalue},
82 {"pfilt", 2, 0, NULL, catvalues},
83 {"pinterp", 2, 0, NULL, catvalues},
84 {"render", 3, 0, NULL, catvalues},
85 {"RESOLUTION", 3, 0, NULL, onevalue},
86 {"RIF", 3, 0, NULL, onevalue},
87 {"RSH", 3, 0, NULL, onevalue},
88 {"RTRACE", 2, 0, NULL, boolvalue},
89 {"START", 2, 0, NULL, intvalue},
90 {"TRANSFER", 2, 0, NULL, onevalue},
91 {"VIEWFILE", 2, 0, NULL, onevalue},
92 };
93
94 #define SFNAME "STATUS" /* status file name */
95
96 struct {
97 char host[64]; /* control host name */
98 RT_PID pid; /* control process id */
99 char cfname[128]; /* control file name */
100 int rnext; /* next frame to render */
101 int fnext; /* next frame to filter */
102 int tnext; /* next frame to transfer */
103 } astat; /* animation status */
104
105 char *progname; /* our program name */
106 char *cfname; /* our control file name */
107
108 int nowarn = 0; /* turn warnings off? */
109 int silent = 0; /* silent mode? */
110 int noaction = 0; /* take no action? */
111
112 char *remsh; /* remote shell program/script */
113 char rendopt[2048]; /* rendering options */
114 char rresopt[32]; /* rendering resolution options */
115 char fresopt[32]; /* filter resolution options */
116 int pfiltalways; /* always use pfilt? */
117
118 char arcargs[10240]; /* files to archive */
119 char *arcfirst, *arcnext; /* pointers to first and next argument */
120
121 struct pslot {
122 RT_PID pid; /* process ID (0 if empty) */
123 int fout; /* output frame number */
124 int (*rcvf)(); /* recover function */
125 } *pslot; /* process slots */
126 int npslots; /* number of process slots */
127
128 #define phostname(ps) ((ps)->hostname[0] ? (ps)->hostname : astat.host)
129 PSERVER *lastpserver; /* last process server with error */
130
131 static struct pslot * findpslot(RT_PID pid);
132 static void checkdir(void);
133 static VIEW * getview(int n);
134
135 static char * dirfile(char *df, register char *path);
136 static char * getexp(int n);
137 static int getblur(double *mbf, double *dbf);
138 static int getastat(void);
139 static void getradfile(char *rfargs);
140 static void badvalue(int vc);
141 static int rmfile(char *fn);
142 static int runcom(char *cs);
143 static int pruncom(char *com, char *ppins, int maxcopies);
144 static void bwait(int ncoms);
145 static RT_PID bruncom(char *com, int fout, int (*rf)());
146 static int serverdown(void);
147 static pscompfunc donecom;
148 static int countviews(void);
149 static int dofilt(int frame, int rvr);
150 static void archive(void);
151 static int frecover(int frame);
152 static int recover(int frame);
153 static void sethosts(void);
154 static void walkwait(int first, int last, char *vfn);
155 static void animrend(int frame, VIEW *vp);
156 static void transferframes(void);
157 static void filterframes(void);
158 static void renderframes(int nframes);
159 static void animate(void);
160 static void setdefaults(void);
161 static void putastat(void);
162
163
164 int
165 main(
166 int argc,
167 char *argv[]
168 )
169 {
170 int explicate = 0;
171 int i;
172
173 progname = argv[0]; /* get arguments */
174 for (i = 1; i < argc && argv[i][0] == '-'; i++)
175 switch (argv[i][1]) {
176 case 'e': /* print variables */
177 explicate++;
178 break;
179 case 'w': /* turn off warnings */
180 nowarn++;
181 break;
182 case 's': /* silent mode */
183 silent++;
184 break;
185 case 'n': /* take no action */
186 noaction++;
187 break;
188 default:
189 goto userr;
190 }
191 if (i != argc-1)
192 goto userr;
193 cfname = argv[i];
194 /* load variables */
195 loadvars(cfname);
196 /* check variables */
197 checkvalues();
198 /* did we get DIRECTORY? */
199 checkdir();
200 /* check status */
201 if (getastat() < 0) {
202 fprintf(stderr, "%s: exiting\n", progname);
203 quit(1);
204 }
205 /* pfilt always if options given */
206 pfiltalways = vdef(PFILT);
207 /* load RIF if any */
208 if (vdef(RIF))
209 getradfile(vval(RIF));
210 /* set defaults */
211 setdefaults();
212 /* print variables */
213 if (explicate)
214 printvars(stdout);
215 /* set up process servers */
216 sethosts();
217 /* run animation */
218 animate();
219 /* all done */
220 if (vdef(NEXTANIM)) {
221 argv[i] = vval(NEXTANIM); /* just change input file */
222 if (!silent)
223 printargs(argc, argv, stdout);
224 if ((argv[0] = getpath(progname,getenv("PATH"),X_OK)) == NULL)
225 fprintf(stderr, "%s: command not found\n", progname);
226 else
227 execv(progname, argv);
228 quit(1);
229 }
230 quit(0);
231 return 0; /* pro forma return */
232 userr:
233 fprintf(stderr, "Usage: %s [-s][-n][-w][-e] anim_file\n", progname);
234 quit(1);
235 return 1; /* pro forma return */
236 }
237
238
239 static int
240 getastat(void) /* check/set animation status */
241 {
242 char sfname[256];
243 FILE *fp;
244
245 sprintf(sfname, "%s/%s", vval(DIRECTORY), SFNAME);
246 if ((fp = fopen(sfname, "r")) == NULL) {
247 if (errno != ENOENT) {
248 perror(sfname);
249 return(-1);
250 }
251 astat.rnext = astat.fnext = astat.tnext = 0;
252 goto setours;
253 }
254 if (fscanf(fp, "Control host: %s\n", astat.host) != 1)
255 goto fmterr;
256 if (fscanf(fp, "Control PID: %d\n", &astat.pid) != 1)
257 goto fmterr;
258 if (fscanf(fp, "Control file: %s\n", astat.cfname) != 1)
259 goto fmterr;
260 if (fscanf(fp, "Next render: %d\n", &astat.rnext) != 1)
261 goto fmterr;
262 if (fscanf(fp, "Next filter: %d\n", &astat.fnext) != 1)
263 goto fmterr;
264 if (fscanf(fp, "Next transfer: %d\n", &astat.tnext) != 1)
265 goto fmterr;
266 fclose(fp);
267 if (astat.pid != 0) { /* thinks it's still running */
268 if (strcmp(myhostname(), astat.host)) {
269 fprintf(stderr,
270 "%s: process %d may still be running on host %s\n",
271 progname, astat.pid, astat.host);
272 return(-1);
273 }
274 if (kill(astat.pid, 0) != -1 || errno != ESRCH) {
275 fprintf(stderr, "%s: process %d is still running\n",
276 progname, astat.pid);
277 return(-1);
278 }
279 /* assume it is dead */
280 }
281 if (strcmp(cfname, astat.cfname) && astat.pid != 0) { /* other's */
282 fprintf(stderr, "%s: unfinished job \"%s\"\n",
283 progname, astat.cfname);
284 return(-1);
285 }
286 /* check control file mods. */
287 if (!nowarn && fdate(cfname) > fdate(sfname))
288 fprintf(stderr,
289 "%s: warning - control file modified since last run\n",
290 progname);
291 setours: /* set our values */
292 strcpy(astat.host, myhostname());
293 astat.pid = getpid();
294 strcpy(astat.cfname, cfname);
295 return(0);
296 fmterr:
297 fprintf(stderr, "%s: format error in status file \"%s\"\n",
298 progname, sfname);
299 fclose(fp);
300 return(-1);
301 }
302
303
304 static void
305 putastat(void) /* put out current status */
306 {
307 char buf[256];
308 FILE *fp;
309
310 if (noaction)
311 return;
312 sprintf(buf, "%s/%s", vval(DIRECTORY), SFNAME);
313 if ((fp = fopen(buf, "w")) == NULL) {
314 perror(buf);
315 quit(1);
316 }
317 fprintf(fp, "Control host: %s\n", astat.host);
318 fprintf(fp, "Control PID: %d\n", astat.pid);
319 fprintf(fp, "Control file: %s\n", astat.cfname);
320 fprintf(fp, "Next render: %d\n", astat.rnext);
321 fprintf(fp, "Next filter: %d\n", astat.fnext);
322 fprintf(fp, "Next transfer: %d\n", astat.tnext);
323 fclose(fp);
324 }
325
326
327 static void
328 checkdir(void) /* make sure we have our directory */
329 {
330 struct stat stb;
331
332 if (!vdef(DIRECTORY)) {
333 fprintf(stderr, "%s: %s undefined\n",
334 progname, vnam(DIRECTORY));
335 quit(1);
336 }
337 if (stat(vval(DIRECTORY), &stb) == -1) {
338 if (errno == ENOENT && mkdir(vval(DIRECTORY), 0777) == 0)
339 return;
340 perror(vval(DIRECTORY));
341 quit(1);
342 }
343 if (!(stb.st_mode & S_IFDIR)) {
344 fprintf(stderr, "%s: not a directory\n", vval(DIRECTORY));
345 quit(1);
346 }
347 }
348
349
350 static void
351 setdefaults(void) /* set default values */
352 {
353 extern char *atos();
354 int decades;
355 char buf[256];
356
357 if (vdef(ANIMATE)) {
358 vval(OCTREE) = NULL;
359 vdef(OCTREE) = 0;
360 } else if (!vdef(OCTREE)) {
361 fprintf(stderr, "%s: either %s or %s must be defined\n",
362 progname, vnam(OCTREE), vnam(ANIMATE));
363 quit(1);
364 }
365 if (!vdef(VIEWFILE)) {
366 fprintf(stderr, "%s: %s undefined\n", progname, vnam(VIEWFILE));
367 quit(1);
368 }
369 if (!vdef(HOST)) {
370 vval(HOST) = LHOSTNAME;
371 vdef(HOST)++;
372 }
373 if (!vdef(START)) {
374 vval(START) = "1";
375 vdef(START)++;
376 }
377 if (!vdef(END)) {
378 sprintf(buf, "%d", countviews()+vint(START)-1);
379 vval(END) = savqstr(buf);
380 vdef(END)++;
381 }
382 if (vint(END) < vint(START)) {
383 fprintf(stderr, "%s: ending frame less than starting frame\n",
384 progname);
385 quit(1);
386 }
387 if (!vdef(BASENAME)) {
388 decades = (int)log10((double)vint(END)) + 1;
389 if (decades < 3) decades = 3;
390 sprintf(buf, "%s/frame%%0%dd", vval(DIRECTORY), decades);
391 vval(BASENAME) = savqstr(buf);
392 vdef(BASENAME)++;
393 }
394 if (!vdef(RESOLUTION)) {
395 vval(RESOLUTION) = "640";
396 vdef(RESOLUTION)++;
397 }
398 if (!vdef(OVERSAMP)) {
399 vval(OVERSAMP) = "2";
400 vdef(OVERSAMP)++;
401 }
402 if (!vdef(INTERP)) {
403 vval(INTERP) = "0";
404 vdef(INTERP)++;
405 }
406 if (!vdef(MBLUR)) {
407 vval(MBLUR) = "0";
408 vdef(MBLUR)++;
409 }
410 if (!vdef(RTRACE)) {
411 vval(RTRACE) = "F";
412 vdef(RTRACE)++;
413 }
414 if (!vdef(DISKSPACE)) {
415 if (!nowarn)
416 fprintf(stderr,
417 "%s: warning - no %s setting, assuming 100 Mbytes available\n",
418 progname, vnam(DISKSPACE));
419 vval(DISKSPACE) = "100";
420 vdef(DISKSPACE)++;
421 }
422 if (!vdef(RSH)) {
423 vval(RSH) = REMSH;
424 vdef(RSH)++;
425 }
426 /* locate remote shell program */
427 atos(buf, sizeof(buf), vval(RSH));
428 if ((remsh = getpath(buf, getenv("PATH"), X_OK)) != NULL)
429 remsh = savqstr(remsh);
430 else
431 remsh = vval(RSH); /* will generate error if used */
432
433 /* append rendering options */
434 if (vdef(RENDER))
435 sprintf(rendopt+strlen(rendopt), " %s", vval(RENDER));
436 }
437
438
439 static void
440 sethosts(void) /* set up process servers */
441 {
442 extern char *iskip();
443 char buf[256], *dir, *uname;
444 int np;
445 register char *cp;
446 int i;
447
448 npslots = 0;
449 if (noaction)
450 return;
451 for (i = 0; i < vdef(HOST); i++) { /* add each host */
452 dir = uname = NULL;
453 np = 1;
454 strcpy(cp=buf, nvalue(HOST, i)); /* copy to buffer */
455 cp = sskip(cp); /* skip host name */
456 while (isspace(*cp))
457 *cp++ = '\0';
458 if (*cp) { /* has # processes? */
459 np = atoi(cp);
460 if ((cp = iskip(cp)) == NULL || (*cp && !isspace(*cp)))
461 badvalue(HOST);
462 while (isspace(*cp))
463 cp++;
464 if (*cp) { /* has directory? */
465 dir = cp;
466 cp = sskip(cp); /* skip dir. */
467 while (isspace(*cp))
468 *cp++ = '\0';
469 if (*cp) { /* has user? */
470 uname = cp;
471 if (*sskip(cp))
472 badvalue(HOST);
473 }
474 }
475 }
476 if (addpserver(buf, dir, uname, np) == NULL) {
477 if (!nowarn)
478 fprintf(stderr,
479 "%s: cannot execute on host \"%s\"\n",
480 progname, buf);
481 } else
482 npslots += np;
483 }
484 if (npslots == 0) {
485 fprintf(stderr, "%s: no working process servers\n", progname);
486 quit(1);
487 }
488 pslot = (struct pslot *)calloc(npslots, sizeof(struct pslot));
489 if (pslot == NULL) {
490 perror("malloc");
491 quit(1);
492 }
493 }
494
495 static void
496 getradfile(char *rfargs) /* run rad and get needed variables */
497 {
498 static short mvar[] = {OCTREE,PFILT,RESOLUTION,EXPOSURE,-1};
499 char combuf[256];
500 register int i;
501 register char *cp;
502 char *pippt = NULL;
503 /* create rad command */
504 sprintf(rendopt, " @%s/render.opt", vval(DIRECTORY));
505 sprintf(combuf,
506 "rad -v 0 -s -e -w %s OPTFILE=%s | egrep '^[ \t]*(NOMATCH",
507 rfargs, rendopt+2);
508 cp = combuf;
509 while (*cp) {
510 if (*cp == '|') pippt = cp;
511 cp++;
512 } /* match unset variables */
513 for (i = 0; mvar[i] >= 0; i++)
514 if (!vdef(mvar[i])) {
515 *cp++ = '|';
516 strcpy(cp, vnam(mvar[i]));
517 while (*cp) cp++;
518 pippt = NULL;
519 }
520 if (pippt != NULL)
521 strcpy(pippt, "> " NULL_DEVICE); /* nothing to match */
522 else {
523 sprintf(cp, ")[ \t]*=' > %s/radset.var", vval(DIRECTORY));
524 cp += 11; /* point to file name */
525 }
526 system(combuf); /* ignore exit code */
527 if (pippt == NULL) { /* load variables and remove file */
528 loadvars(cp);
529 unlink(cp);
530 }
531 }
532
533
534 static void
535 animate(void) /* run animation */
536 {
537 int xres, yres;
538 float pa, mult;
539 int frames_batch;
540 register int i;
541 double d1, d2;
542 /* compute rpict resolution */
543 i = sscanf(vval(RESOLUTION), "%d %d %f", &xres, &yres, &pa);
544 mult = vflt(OVERSAMP);
545 if (i == 3) {
546 sprintf(rresopt, "-x %d -y %d -pa %.3f", (int)(mult*xres),
547 (int)(mult*yres), pa);
548 sprintf(fresopt, "-x %d -y %d -pa %.3f", xres, yres, pa);
549 } else if (i) {
550 if (i == 1) yres = xres;
551 sprintf(rresopt, "-x %d -y %d", (int)(mult*xres),
552 (int)(mult*yres));
553 sprintf(fresopt, "-x %d -y %d -pa 1", xres, yres);
554 } else
555 badvalue(RESOLUTION);
556 /* consistency checks */
557 if (vdef(ANIMATE)) {
558 if (vint(INTERP)) {
559 if (!nowarn)
560 fprintf(stderr,
561 "%s: resetting %s=0 for animation\n",
562 progname, vnam(INTERP));
563 vval(INTERP) = "0";
564 }
565 if (strcmp(vval(MBLUR),"0")) { /* can't handle this */
566 if (!nowarn)
567 fprintf(stderr,
568 "%s: resetting %s=0 for animation\n",
569 progname, vnam(MBLUR));
570 vval(MBLUR) = "0";
571 }
572 }
573 /* figure # frames per batch */
574 d1 = mult*xres*mult*yres*4; /* space for orig. picture */
575 if ((i=vint(INTERP)) || getblur(NULL, NULL) > 1)
576 d1 += mult*xres*mult*yres*sizeof(float); /* Z-buffer */
577 d2 = xres*yres*4; /* space for final picture */
578 frames_batch = (i+1)*(vflt(DISKSPACE)*1048576.-d1)/(d1+i*d2);
579 if (frames_batch < i+2) {
580 fprintf(stderr, "%s: insufficient disk space allocated\n",
581 progname);
582 quit(1);
583 }
584 /* initialize archive argument list */
585 i = vdef(ARCHIVE) ? strlen(vval(ARCHIVE))+132 : 132;
586 arcnext = arcfirst = arcargs + i;
587 /* initialize status file */
588 if (astat.rnext == 0)
589 astat.rnext = astat.fnext = astat.tnext = vint(START);
590 putastat();
591 /* render in batches */
592 while (astat.tnext <= vint(END)) {
593 renderframes(frames_batch);
594 filterframes();
595 transferframes();
596 }
597 /* mark status as finished */
598 astat.pid = 0;
599 putastat();
600 /* close open files */
601 getview(0);
602 getexp(0);
603 }
604
605
606 static void
607 renderframes(int nframes) /* render next nframes frames */
608 {
609 static char vendbuf[16];
610 VIEW *vp;
611 FILE *fp = NULL;
612 char vfname[128];
613 int lastframe;
614 register int i;
615
616 if (astat.tnext < astat.rnext) /* other work to do first */
617 return;
618 /* create batch view file */
619 if (!vdef(ANIMATE)) {
620 sprintf(vfname, "%s/anim.vf", vval(DIRECTORY));
621 if ((fp = fopen(vfname, "w")) == NULL) {
622 perror(vfname);
623 quit(1);
624 }
625 }
626 /* bound batch properly */
627 lastframe = astat.rnext + nframes - 1;
628 if ((lastframe-1) % (vint(INTERP)+1)) /* need even interval */
629 lastframe += vint(INTERP)+1 - ((lastframe-1)%(vint(INTERP)+1));
630 if (lastframe > vint(END)) /* check for end */
631 lastframe = vint(END);
632 /* render each view */
633 for (i = astat.rnext; i <= lastframe; i++) {
634 if ((vp = getview(i)) == NULL) {
635 if (!nowarn)
636 fprintf(stderr,
637 "%s: ran out of views before last frame\n",
638 progname);
639 sprintf(vval(END)=vendbuf, "%d", i-1);
640 lastframe = i - 1;
641 break;
642 }
643 if (vdef(ANIMATE)) /* animate frame */
644 animrend(i, vp);
645 else { /* else record it */
646 fputs(VIEWSTR, fp);
647 fprintview(vp, fp);
648 putc('\n', fp);
649 }
650 }
651 if (vdef(ANIMATE)) /* wait for renderings to finish */
652 bwait(0);
653 else { /* else if walk-through */
654 fclose(fp); /* close view file */
655 walkwait(astat.rnext, lastframe, vfname); /* walk it */
656 unlink(vfname); /* remove view file */
657 }
658 astat.rnext = i; /* update status */
659 putastat();
660 }
661
662
663 static void
664 filterframes(void) /* catch up with filtering */
665 {
666 register int i;
667
668 if (astat.tnext < astat.fnext) /* other work to do first */
669 return;
670 /* filter each view */
671 for (i = astat.fnext; i < astat.rnext; i++)
672 dofilt(i, 0);
673
674 bwait(0); /* wait for filter processes */
675 archive(); /* archive originals */
676 astat.fnext = i; /* update status */
677 putastat();
678 }
679
680
681 static void
682 transferframes(void) /* catch up with picture transfers */
683 {
684 char combuf[10240], *fbase;
685 register char *cp;
686 register int i;
687
688 if (astat.tnext >= astat.fnext) /* nothing to do, yet */
689 return;
690 if (!vdef(TRANSFER)) { /* no transfer function -- leave 'em */
691 astat.tnext = astat.fnext;
692 putastat(); /* update status */
693 return;
694 }
695 strcpy(combuf, "cd "); /* start transfer command */
696 fbase = dirfile(cp = combuf+3, vval(BASENAME));
697 if (*cp) {
698 while (*++cp) ;
699 *cp++ = ';'; *cp++ = ' ';
700 } else
701 cp = combuf;
702 strcpy(cp, vval(TRANSFER));
703 while (*cp) cp++;
704 /* make argument list */
705 for (i = astat.tnext; i < astat.fnext; i++) {
706 *cp++ = ' ';
707 sprintf(cp, fbase, i);
708 while (*cp) cp++;
709 strcpy(cp, ".pic");
710 cp += 4;
711 }
712 if (runcom(combuf)) { /* transfer frames */
713 fprintf(stderr, "%s: error running transfer command\n",
714 progname);
715 quit(1);
716 }
717 astat.tnext = i; /* update status */
718 putastat();
719 }
720
721
722 static void
723 animrend( /* start animation frame */
724 int frame,
725 VIEW *vp
726 )
727 {
728 char combuf[2048];
729 char fname[128];
730
731 sprintf(fname, vval(BASENAME), frame);
732 strcat(fname, ".unf");
733 if (access(fname, F_OK) == 0)
734 return;
735 sprintf(combuf, "%s %d | rpict%s%s -w0 %s > %s", vval(ANIMATE), frame,
736 rendopt, viewopt(vp), rresopt, fname);
737 bruncom(combuf, frame, recover); /* run in background */
738 }
739
740
741 static void
742 walkwait( /* walk-through frames */
743 int first,
744 int last,
745 char *vfn
746 )
747 {
748 double mblurf, dblurf;
749 int nblur = getblur(&mblurf, &dblurf);
750 char combuf[2048];
751 register char *inspoint;
752 register int i;
753
754 if (!noaction && vint(INTERP)) /* create dummy frames */
755 for (i = first; i <= last; i++)
756 if (i < vint(END) && (i-1) % (vint(INTERP)+1)) {
757 sprintf(combuf, vval(BASENAME), i);
758 strcat(combuf, ".unf");
759 close(open(combuf, O_RDONLY|O_CREAT, 0666));
760 }
761 /* create command */
762 sprintf(combuf, "rpict%s%s -w0", rendopt,
763 viewopt(getview(first>1 ? first-1 : 1)));
764 inspoint = combuf;
765 while (*inspoint) inspoint++;
766 if (nblur) {
767 sprintf(inspoint, " -pm %.3f", mblurf/nblur);
768 while (*inspoint) inspoint++;
769 sprintf(inspoint, " -pd %.3f", dblurf/nblur);
770 while (*inspoint) inspoint++;
771 }
772 if (nblur > 1 || vint(INTERP)) {
773 sprintf(inspoint, " -z %s.zbf", vval(BASENAME));
774 while (*inspoint) inspoint++;
775 }
776 sprintf(inspoint, " -o %s.unf %s -S %d",
777 vval(BASENAME), rresopt, first);
778 while (*inspoint) inspoint++;
779 sprintf(inspoint, " %s < %s", vval(OCTREE), vfn);
780 /* run in parallel */
781 i = (last-first+1)/(vint(INTERP)+1);
782 if (i < 1) i = 1;
783 if (pruncom(combuf, inspoint, i)) {
784 fprintf(stderr, "%s: error rendering frames %d through %d\n",
785 progname, first, last);
786 quit(1);
787 }
788 if (!noaction && vint(INTERP)) /* remove dummy frames */
789 for (i = first; i <= last; i++)
790 if (i < vint(END) && (i-1) % (vint(INTERP)+1)) {
791 sprintf(combuf, vval(BASENAME), i);
792 strcat(combuf, ".unf");
793 unlink(combuf);
794 }
795 }
796
797
798 static int
799 recover(int frame) /* recover the specified frame */
800 {
801 static int *rfrm; /* list of recovered frames */
802 static int nrfrms = 0;
803 double mblurf, dblurf;
804 int nblur = getblur(&mblurf, &dblurf);
805 char combuf[2048];
806 char fname[128];
807 register char *cp;
808 register int i;
809 /* check to see if recovered already */
810 for (i = nrfrms; i--; )
811 if (rfrm[i] == frame)
812 return(0);
813 /* build command */
814 sprintf(fname, vval(BASENAME), frame);
815 if (vdef(ANIMATE))
816 sprintf(combuf, "%s %d | rpict%s -w0",
817 vval(ANIMATE), frame, rendopt);
818 else
819 sprintf(combuf, "rpict%s -w0", rendopt);
820 cp = combuf;
821 while (*cp) cp++;
822 if (nblur) {
823 sprintf(cp, " -pm %.3f", mblurf/nblur);
824 while (*cp) cp++;
825 sprintf(cp, " -pd %.3f", dblurf/nblur);
826 while (*cp) cp++;
827 }
828 if (nblur > 1 || vint(INTERP)) {
829 sprintf(cp, " -z %s.zbf", fname);
830 while (*cp) cp++;
831 }
832 sprintf(cp, " -ro %s.unf", fname);
833 while (*cp) cp++;
834 if (!vdef(ANIMATE)) {
835 *cp++ = ' ';
836 strcpy(cp, vval(OCTREE));
837 }
838 if (runcom(combuf)) /* run command */
839 return(1);
840 /* add frame to recovered list */
841 if (nrfrms)
842 rfrm = (int *)realloc((void *)rfrm, (nrfrms+1)*sizeof(int));
843 else
844 rfrm = (int *)malloc(sizeof(int));
845 if (rfrm == NULL) {
846 perror("malloc");
847 quit(1);
848 }
849 rfrm[nrfrms++] = frame;
850 return(0);
851 }
852
853
854 static int
855 frecover(int frame) /* recover filtered frame */
856 {
857 if (dofilt(frame, 2) && dofilt(frame, 1))
858 return(1);
859 return(0);
860 }
861
862
863 static void
864 archive(void) /* archive and remove renderings */
865 {
866 #define RMCOML (sizeof(rmcom)-1)
867 static char rmcom[] = "rm -f";
868 char basedir[128];
869 int dlen, alen;
870 register int j;
871
872 if (arcnext == arcfirst)
873 return; /* nothing to do */
874 dirfile(basedir, vval(BASENAME));
875 dlen = strlen(basedir);
876 if (vdef(ARCHIVE)) { /* run archive command */
877 alen = strlen(vval(ARCHIVE));
878 if (dlen) {
879 j = alen + dlen + 5;
880 strncpy(arcfirst-j, "cd ", 3);
881 strncpy(arcfirst-j+3, basedir, dlen);
882 (arcfirst-j)[dlen+3] = ';'; (arcfirst-j)[dlen+4] = ' ';
883 } else
884 j = alen;
885 strncpy(arcfirst-alen, vval(ARCHIVE), alen);
886 if (runcom(arcfirst-j)) {
887 fprintf(stderr, "%s: error running archive command\n",
888 progname);
889 quit(1);
890 }
891 }
892 if (dlen) {
893 j = RMCOML + dlen + 5;
894 strncpy(arcfirst-j, "cd ", 3);
895 strncpy(arcfirst-j+3, basedir, dlen);
896 (arcfirst-j)[dlen+3] = ';'; (arcfirst-j)[dlen+4] = ' ';
897 } else
898 j = RMCOML;
899 /* run remove command */
900 strncpy(arcfirst-RMCOML, rmcom, RMCOML);
901 runcom(arcfirst-j);
902 arcnext = arcfirst; /* reset argument list */
903 #undef RMCOML
904 }
905
906
907 static int
908 dofilt( /* filter frame */
909 int frame,
910 int rvr
911 )
912 {
913 static int iter = 0;
914 double mblurf, dblurf;
915 int nblur = getblur(&mblurf, &dblurf);
916 VIEW *vp = getview(frame);
917 char *ep = getexp(frame);
918 char fnbefore[128], fnafter[128], *fbase;
919 char combuf[1024], fname0[128], fname1[128];
920 int usepinterp, usepfilt, nora_rgbe;
921 int frseq[2];
922 /* check what is needed */
923 if (vp == NULL) {
924 fprintf(stderr,
925 "%s: unexpected error reading view for frame %d\n",
926 progname, frame);
927 quit(1);
928 }
929 usepinterp = (nblur > 1);
930 usepfilt = pfiltalways | (ep==NULL);
931 if (ep != NULL && !strcmp(ep, "1"))
932 ep = "+0";
933 nora_rgbe = strcmp(vval(OVERSAMP),"1") || ep==NULL ||
934 *ep != '+' || *ep != '-' || !isint(ep);
935 /* compute rendered views */
936 frseq[0] = frame - ((frame-1) % (vint(INTERP)+1));
937 frseq[1] = frseq[0] + vint(INTERP) + 1;
938 fbase = dirfile(NULL, vval(BASENAME));
939 if (frseq[1] > vint(END))
940 frseq[1] = vint(END);
941 if (frseq[1] == frame) { /* pfilt only */
942 frseq[0] = frseq[1];
943 usepinterp = 0; /* update what's needed */
944 usepfilt |= nora_rgbe;
945 } else if (frseq[0] == frame) { /* no interpolation needed */
946 if (!rvr && frame > 1+vint(INTERP)) { /* archive previous */
947 *arcnext++ = ' ';
948 sprintf(arcnext, fbase, frame-vint(INTERP)-1);
949 while (*arcnext) arcnext++;
950 strcpy(arcnext, ".unf");
951 arcnext += 4;
952 if (usepinterp || vint(INTERP)) { /* and Z-buf */
953 *arcnext++ = ' ';
954 sprintf(arcnext, fbase, frame-vint(INTERP)-1);
955 while (*arcnext) arcnext++;
956 strcpy(arcnext, ".zbf");
957 arcnext += 4;
958 }
959 }
960 if (!usepinterp) /* update what's needed */
961 usepfilt |= nora_rgbe;
962 } else /* interpolation needed */
963 usepinterp++;
964 if (frseq[1] >= astat.rnext) /* next batch unavailable */
965 frseq[1] = frseq[0];
966 sprintf(fnbefore, vval(BASENAME), frseq[0]);
967 sprintf(fnafter, vval(BASENAME), frseq[1]);
968 if (rvr == 1 && recover(frseq[0])) /* recover before frame? */
969 return(1);
970 /* generate command */
971 if (usepinterp) { /* using pinterp */
972 if (rvr == 2 && recover(frseq[1])) /* recover after? */
973 return(1);
974 if (nblur > 1) { /* with pdmblur */
975 sprintf(fname0, "%s/vw0%c", vval(DIRECTORY),
976 'a'+(iter%26));
977 sprintf(fname1, "%s/vw1%c", vval(DIRECTORY),
978 'a'+(iter%26));
979 if (!noaction) {
980 FILE *fp; /* motion blurring */
981 if ((fp = fopen(fname0, "w")) == NULL) {
982 perror(fname0); quit(1);
983 }
984 fputs(VIEWSTR, fp);
985 fprintview(vp, fp);
986 putc('\n', fp); fclose(fp);
987 if ((vp = getview(frame+1)) == NULL) {
988 fprintf(stderr,
989 "%s: unexpected error reading view for frame %d\n",
990 progname, frame+1);
991 quit(1);
992 }
993 if ((fp = fopen(fname1, "w")) == NULL) {
994 perror(fname1); quit(1);
995 }
996 fputs(VIEWSTR, fp);
997 fprintview(vp, fp);
998 putc('\n', fp); fclose(fp);
999 }
1000 sprintf(combuf,
1001 "(pmdblur %.3f %.3f %d %s %s; rm -f %s %s) | pinterp -B -a",
1002 mblurf, dblurf, nblur,
1003 fname0, fname1, fname0, fname1);
1004 iter++;
1005 } else /* no blurring */
1006 strcpy(combuf, "pinterp");
1007 strcat(combuf, viewopt(vp));
1008 if (vbool(RTRACE))
1009 sprintf(combuf+strlen(combuf), " -ff -fr '%s -w0 %s'",
1010 rendopt+1, vval(OCTREE));
1011 if (vdef(PINTERP))
1012 sprintf(combuf+strlen(combuf), " %s", vval(PINTERP));
1013 if (usepfilt)
1014 sprintf(combuf+strlen(combuf), " %s", rresopt);
1015 else
1016 sprintf(combuf+strlen(combuf), " -a %s -e %s",
1017 fresopt, ep);
1018 sprintf(combuf+strlen(combuf), " %s.unf %s.zbf",
1019 fnbefore, fnbefore);
1020 if (frseq[1] != frseq[0])
1021 sprintf(combuf+strlen(combuf), " %s.unf %s.zbf",
1022 fnafter, fnafter);
1023 if (usepfilt) { /* also pfilt */
1024 if (vdef(PFILT))
1025 sprintf(combuf+strlen(combuf), " | pfilt %s",
1026 vval(PFILT));
1027 else
1028 strcat(combuf, " | pfilt");
1029 if (ep != NULL)
1030 sprintf(combuf+strlen(combuf), " -1 -e %s %s",
1031 ep, fresopt);
1032 else
1033 sprintf(combuf+strlen(combuf), " %s", fresopt);
1034 }
1035 } else if (usepfilt) { /* pfilt only */
1036 if (rvr == 2)
1037 return(1);
1038 if (vdef(PFILT))
1039 sprintf(combuf, "pfilt %s", vval(PFILT));
1040 else
1041 strcpy(combuf, "pfilt");
1042 if (ep != NULL)
1043 sprintf(combuf+strlen(combuf), " -1 -e %s %s %s.unf",
1044 ep, fresopt, fnbefore);
1045 else
1046 sprintf(combuf+strlen(combuf), " %s %s.unf",
1047 fresopt, fnbefore);
1048 } else { /* else just check it */
1049 if (rvr == 2)
1050 return(1);
1051 sprintf(combuf, "ra_rgbe -e %s -r %s.unf", ep, fnbefore);
1052 }
1053 /* output file name */
1054 sprintf(fname0, vval(BASENAME), frame);
1055 sprintf(combuf+strlen(combuf), " > %s.pic", fname0);
1056 if (rvr) /* in recovery */
1057 return(runcom(combuf));
1058 bruncom(combuf, frame, frecover); /* else run in background */
1059 return(0);
1060 }
1061
1062
1063 static VIEW *
1064 getview(int n) /* get view number n */
1065 {
1066 static FILE *viewfp = NULL; /* view file pointer */
1067 static int viewnum = 0; /* current view number */
1068 static VIEW curview = STDVIEW; /* current view */
1069 char linebuf[256];
1070
1071 if (n == 0) { /* signal to close file and clean up */
1072 if (viewfp != NULL) {
1073 fclose(viewfp);
1074 viewfp = NULL;
1075 viewnum = 0;
1076 curview = stdview;
1077 }
1078 return(NULL);
1079 }
1080 if (viewfp == NULL) { /* open file */
1081 if ((viewfp = fopen(vval(VIEWFILE), "r")) == NULL) {
1082 perror(vval(VIEWFILE));
1083 quit(1);
1084 }
1085 } else if (n > 0 && n < viewnum) { /* rewind file */
1086 if (viewnum == 1 && feof(viewfp))
1087 return(&curview); /* just one view */
1088 if (fseek(viewfp, 0L, 0) == EOF) {
1089 perror(vval(VIEWFILE));
1090 quit(1);
1091 }
1092 curview = stdview;
1093 viewnum = 0;
1094 }
1095 if (n < 0) { /* get next view */
1096 register int c = getc(viewfp);
1097 if (c == EOF)
1098 return((VIEW *)NULL); /* that's it */
1099 ungetc(c, viewfp);
1100 n = viewnum + 1;
1101 }
1102 while (n > viewnum) { /* scan to desired view */
1103 if (fgets(linebuf, sizeof(linebuf), viewfp) == NULL)
1104 return(viewnum==1 ? &curview : (VIEW *)NULL);
1105 if (isview(linebuf) && sscanview(&curview, linebuf) > 0)
1106 viewnum++;
1107 }
1108 return(&curview); /* return it */
1109 }
1110
1111
1112 static int
1113 countviews(void) /* count views in view file */
1114 {
1115 int n;
1116
1117 if (getview(n=1) == NULL)
1118 return(0);
1119 while (getview(-1) != NULL)
1120 n++;
1121 return(n);
1122 }
1123
1124
1125 static char *
1126 getexp(int n) /* get exposure for nth frame */
1127 {
1128 extern char *fskip();
1129 static char expval[32];
1130 static FILE *expfp = NULL;
1131 static long *exppos;
1132 static int curfrm;
1133 register char *cp;
1134
1135 if (n == 0) { /* signal to close file */
1136 if (expfp != NULL) {
1137 fclose(expfp);
1138 free((void *)exppos);
1139 expfp = NULL;
1140 }
1141 return(NULL);
1142 } else if (n > vint(END)) /* request past end (error?) */
1143 return(NULL);
1144 if (!vdef(EXPOSURE)) /* no setting (auto) */
1145 return(NULL);
1146 if (isflt(vval(EXPOSURE))) /* always the same */
1147 return(vval(EXPOSURE));
1148 if (expfp == NULL) { /* open exposure file */
1149 if ((expfp = fopen(vval(EXPOSURE), "r")) == NULL) {
1150 fprintf(stderr,
1151 "%s: cannot open exposure file \"%s\"\n",
1152 progname, vval(EXPOSURE));
1153 quit(1);
1154 }
1155 curfrm = vint(END) + 1; /* init lookup tab. */
1156 exppos = (long *)malloc(curfrm*sizeof(long *));
1157 if (exppos == NULL) {
1158 perror(progname);
1159 quit(1);
1160 }
1161 while (curfrm--)
1162 exppos[curfrm] = -1L;
1163 curfrm = 0;
1164 }
1165 /* find position in file */
1166 if (n-1 != curfrm && n != curfrm && exppos[n-1] >= 0 &&
1167 fseek(expfp, exppos[curfrm=n-1], 0) == EOF) {
1168 fprintf(stderr, "%s: seek error on exposure file\n", progname);
1169 quit(1);
1170 }
1171 while (n > curfrm) { /* read exposure */
1172 if (exppos[curfrm] < 0)
1173 exppos[curfrm] = ftell(expfp);
1174 if (fgets(expval, sizeof(expval), expfp) == NULL) {
1175 fprintf(stderr, "%s: too few exposures\n",
1176 vval(EXPOSURE));
1177 quit(1);
1178 }
1179 curfrm++;
1180 cp = fskip(expval); /* check format */
1181 if (cp != NULL)
1182 while (isspace(*cp))
1183 *cp++ = '\0';
1184 if (cp == NULL || *cp) {
1185 fprintf(stderr,
1186 "%s: exposure format error on line %d\n",
1187 vval(EXPOSURE), curfrm);
1188 quit(1);
1189 }
1190 }
1191 return(expval); /* return value */
1192 }
1193
1194
1195 static struct pslot *
1196 findpslot(RT_PID pid) /* find or allocate a process slot */
1197 {
1198 register struct pslot *psempty = NULL;
1199 register int i;
1200
1201 for (i = 0; i < npslots; i++) { /* look for match */
1202 if (pslot[i].pid == pid)
1203 return(pslot+i);
1204 if (psempty == NULL && pslot[i].pid == 0)
1205 psempty = pslot+i;
1206 }
1207 return(psempty); /* return emtpy slot (error if NULL) */
1208 }
1209
1210
1211 static int
1212 donecom( /* clean up after finished process */
1213 PSERVER *ps,
1214 int pn,
1215 int status
1216 )
1217 {
1218 register NETPROC *pp;
1219 register struct pslot *psl;
1220
1221 pp = ps->proc + pn;
1222 if (pp->elen) { /* pass errors */
1223 if (ps->hostname[0])
1224 fprintf(stderr, "%s: ", ps->hostname);
1225 fprintf(stderr, "Error output from: %s\n", pp->com);
1226 fputs(pp->errs, stderr);
1227 fflush(stderr);
1228 if (ps->hostname[0])
1229 status = 1; /* because rsh doesn't return status */
1230 }
1231 lastpserver = NULL;
1232 psl = findpslot(pp->pid); /* check for bruncom() slot */
1233 if (psl->pid) {
1234 if (status) {
1235 if (psl->rcvf != NULL) /* attempt recovery */
1236 status = (*psl->rcvf)(psl->fout);
1237 if (status) {
1238 fprintf(stderr,
1239 "%s: error rendering frame %d\n",
1240 progname, psl->fout);
1241 quit(1);
1242 }
1243 lastpserver = ps;
1244 }
1245 psl->pid = 0; /* free process slot */
1246 } else if (status)
1247 lastpserver = ps;
1248 freestr(pp->com); /* free command string */
1249 return(status);
1250 }
1251
1252
1253 static int
1254 serverdown(void) /* check status of last process server */
1255 {
1256 if (lastpserver == NULL || !lastpserver->hostname[0])
1257 return(0);
1258 if (pserverOK(lastpserver)) /* server still up? */
1259 return(0);
1260 delpserver(lastpserver); /* else delete it */
1261 if (pslist == NULL) {
1262 fprintf(stderr, "%s: all process servers are down\n",
1263 progname);
1264 quit(1);
1265 }
1266 return(1);
1267 }
1268
1269
1270 static RT_PID
1271 bruncom( /* run a command in the background */
1272 char *com,
1273 int fout,
1274 int (*rf)()
1275 )
1276 {
1277 RT_PID pid;
1278 register struct pslot *psl;
1279
1280 if (noaction) {
1281 if (!silent)
1282 printf("\t%s\n", com); /* echo command */
1283 return(0);
1284 }
1285 com = savestr(com); /* else start it when we can */
1286 while ((pid = startjob(NULL, com, donecom)) == -1)
1287 bwait(1);
1288 if (!silent) { /* echo command */
1289 PSERVER *ps;
1290 RT_PID psn = pid;
1291 ps = findjob(&psn);
1292 printf("\t%s\n", com);
1293 printf("\tProcess started on %s\n", phostname(ps));
1294 fflush(stdout);
1295 }
1296 psl = findpslot(pid); /* record info. in appropriate slot */
1297 psl->pid = pid;
1298 psl->fout = fout;
1299 psl->rcvf = rf;
1300 return(pid);
1301 }
1302
1303
1304 static void
1305 bwait(int ncoms) /* wait for batch job(s) to finish */
1306 {
1307 int status;
1308
1309 if (noaction)
1310 return;
1311 while ((status = wait4job(NULL, -1)) != -1) {
1312 serverdown(); /* update server status */
1313 if (--ncoms == 0)
1314 break; /* done enough */
1315 }
1316 }
1317
1318
1319 static int
1320 pruncom( /* run a command in parallel over network */
1321 char *com,
1322 char *ppins,
1323 int maxcopies
1324 )
1325 {
1326 int retstatus = 0;
1327 int hostcopies;
1328 char buf[10240], *com1, *s;
1329 int status;
1330 int pfd;
1331 register int n;
1332 register PSERVER *ps;
1333
1334 if (!silent)
1335 printf("\t%s\n", com); /* echo command */
1336 if (noaction)
1337 return(0);
1338 fflush(stdout);
1339 /* start jobs on each server */
1340 for (ps = pslist; ps != NULL; ps = ps->next) {
1341 hostcopies = 0;
1342 if (maxcopies > 1 && ps->nprocs > 1 && ppins != NULL) {
1343 strcpy(com1=buf, com); /* build -PP command */
1344 sprintf(com1+(ppins-com), " -PP %s/%s.persist",
1345 vval(DIRECTORY), phostname(ps));
1346 unlink(com1+(ppins-com)+5);
1347 strcat(com1, ppins);
1348 } else
1349 com1 = com;
1350 while (maxcopies > 0) {
1351 s = savestr(com1);
1352 if (startjob(ps, s, donecom) != -1) {
1353 sleep(20);
1354 hostcopies++;
1355 maxcopies--;
1356 } else {
1357 freestr(s);
1358 break;
1359 }
1360 }
1361 if (!silent && hostcopies) {
1362 if (hostcopies > 1)
1363 printf("\t%d duplicate processes", hostcopies);
1364 else
1365 printf("\tProcess");
1366 printf(" started on %s\n", phostname(ps));
1367 fflush(stdout);
1368 }
1369 }
1370 /* wait for jobs to finish */
1371 while ((status = wait4job(NULL, -1)) != -1)
1372 retstatus += status && !serverdown();
1373 /* terminate parallel rpict's */
1374 for (ps = pslist; ps != NULL; ps = ps->next) {
1375 sprintf(buf, "%s/%s.persist", vval(DIRECTORY), phostname(ps));
1376 if ((pfd = open(buf, O_RDONLY)) >= 0) {
1377 n = read(pfd, buf, sizeof(buf)-1); /* get PID */
1378 buf[n] = '\0';
1379 close(pfd);
1380 for (n = 0; buf[n] && !isspace(buf[n]); n++)
1381 ;
1382 /* terminate */
1383 sprintf(buf, "kill -ALRM %d", atoi(buf+n));
1384 wait4job(ps, startjob(ps, buf, NULL));
1385 }
1386 }
1387 return(retstatus);
1388 }
1389
1390
1391 static int
1392 runcom(char *cs) /* run a command locally and wait for it */
1393 {
1394 if (!silent) /* echo it */
1395 printf("\t%s\n", cs);
1396 if (noaction)
1397 return(0);
1398 fflush(stdout); /* flush output and pass to shell */
1399 return(system(cs));
1400 }
1401
1402
1403 static int
1404 rmfile(char *fn) /* remove a file */
1405 {
1406 if (!silent)
1407 #ifdef _WIN32
1408 printf("\tdel %s\n", fn);
1409 #else
1410 printf("\trm -f %s\n", fn);
1411 #endif
1412 if (noaction)
1413 return(0);
1414 return(unlink(fn));
1415 }
1416
1417
1418 static void
1419 badvalue(int vc) /* report bad variable value and exit */
1420 {
1421 fprintf(stderr, "%s: bad value for variable '%s'\n",
1422 progname, vnam(vc));
1423 quit(1);
1424 }
1425
1426
1427 static char *
1428 dirfile( /* separate path into directory and file */
1429 char *df,
1430 register char *path
1431 )
1432 {
1433 register int i;
1434 int psep;
1435
1436 for (i = 0, psep = -1; path[i]; i++)
1437 if (path[i] == '/')
1438 psep = i;
1439 if (df != NULL) {
1440 if (psep == 0) {
1441 df[0] = '/';
1442 df[1] = '\0';
1443 } else if (psep > 0) {
1444 strncpy(df, path, psep);
1445 df[psep] = '\0';
1446 } else
1447 df[0] = '\0';
1448 }
1449 return(path+psep+1);
1450 }
1451
1452
1453 static int
1454 getblur(double *mbf, double *dbf) /* get # blur samples (and fraction) */
1455 {
1456 double mblurf, dblurf;
1457 int nmblur, ndblur;
1458 char *s;
1459 /* get motion blur */
1460 if (!vdef(MBLUR) || (mblurf = atof(vval(MBLUR))) < 0.0)
1461 mblurf = 0.0;
1462 if (mbf != NULL)
1463 *mbf = mblurf;
1464 if (mblurf <= FTINY)
1465 nmblur = 0;
1466 else if (!*(s = sskip(vval(MBLUR))))
1467 nmblur = DEF_NBLUR;
1468 else if ((nmblur = atoi(s)) <= 0)
1469 nmblur = 1;
1470 /* get depth-of-field blur */
1471 if (!vdef(DBLUR) || (dblurf = atof(vval(DBLUR))) < 0.0)
1472 dblurf = 0.0;
1473 if (dbf != NULL)
1474 *dbf = dblurf;
1475 if (dblurf <= FTINY)
1476 ndblur = 0;
1477 else if (!*(s = sskip(vval(DBLUR))))
1478 ndblur = DEF_NBLUR;
1479 else if ((ndblur = atoi(s)) <= 0)
1480 ndblur = 1;
1481 if ((nmblur == 1) & (ndblur == 1))
1482 return(1);
1483 /* return combined samples */
1484 return(nmblur + ndblur);
1485 }