1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: rtcontrib.c,v 1.23 2005/06/16 19:37:26 greg Exp $"; |
3 |
#endif |
4 |
/* |
5 |
* Gather rtrace output to compute contributions from particular sources |
6 |
*/ |
7 |
|
8 |
#include "standard.h" |
9 |
#include <ctype.h> |
10 |
#include <signal.h> |
11 |
#include "platform.h" |
12 |
#include "rtprocess.h" |
13 |
#include "selcall.h" |
14 |
#include "color.h" |
15 |
#include "resolu.h" |
16 |
#include "lookup.h" |
17 |
#include "calcomp.h" |
18 |
|
19 |
#ifndef MAXMODLIST |
20 |
#define MAXMODLIST 1024 /* maximum modifiers we'll track */ |
21 |
#endif |
22 |
|
23 |
int treebufsiz = BUFSIZ; /* current tree buffer size */ |
24 |
|
25 |
typedef double DCOLOR[3]; /* double-precision color */ |
26 |
|
27 |
/* |
28 |
* The modcont structure is used to accumulate ray contributions |
29 |
* for a particular modifier, which may be subdivided into bins |
30 |
* if binv is non-NULL. If outspec contains a %s in it, this will |
31 |
* be replaced with the modifier name. If outspec contains a %d in it, |
32 |
* this will be used to create one output file per bin, otherwise all bins |
33 |
* will be written to the same file, in order. If the global outfmt |
34 |
* is 'c', then a 4-byte RGBE pixel will be output for each bin value |
35 |
* and the file will conform to a RADIANCE image if xres & yres are set. |
36 |
*/ |
37 |
typedef struct { |
38 |
const char *outspec; /* output file specification */ |
39 |
const char *modname; /* modifier name */ |
40 |
EPNODE *binv; /* bin value expression */ |
41 |
int nbins; /* number of accumulation bins */ |
42 |
DCOLOR cbin[1]; /* contribution bins (extends struct) */ |
43 |
} MODCONT; /* modifier contribution */ |
44 |
|
45 |
static void mcfree(void *p) { epfree((*(MODCONT *)p).binv); free(p); } |
46 |
|
47 |
LUTAB modconttab = LU_SINIT(NULL,mcfree); /* modifier lookup table */ |
48 |
|
49 |
/* close output stream */ |
50 |
static void closefile(void *p) { fclose((FILE *)p); } |
51 |
|
52 |
LUTAB ofiletab = LU_SINIT(free,closefile); /* output file table */ |
53 |
|
54 |
#define OF_MODIFIER 01 |
55 |
#define OF_BIN 02 |
56 |
|
57 |
FILE *getofile(const char *ospec, const char *mname, int bn); |
58 |
int ofname(char *oname, const char *ospec, const char *mname, int bn); |
59 |
void printheader(FILE *fout, const char *info); |
60 |
|
61 |
/* |
62 |
* The rcont structure is used to manage i/o with a particular |
63 |
* rtrace child process. Input is passed unchanged from stdin, |
64 |
* and output is processed in input order and accumulated according |
65 |
* to the corresponding modifier and bin number. |
66 |
*/ |
67 |
struct rtproc { |
68 |
struct rtproc *next; /* next in list of processes */ |
69 |
SUBPROC pd; /* rtrace pipe descriptors */ |
70 |
unsigned long raynum; /* ray number for this tree */ |
71 |
int bsiz; /* ray tree buffer length */ |
72 |
char *buf; /* ray tree buffer */ |
73 |
int nbr; /* number of bytes from rtrace */ |
74 |
}; /* rtrace process buffer */ |
75 |
|
76 |
/* rtrace command and defaults */ |
77 |
char *rtargv[256+2*MAXMODLIST] = { "rtrace", |
78 |
"-dj", ".5", "-dr", "3", |
79 |
"-ab", "1", "-ad", "128", }; |
80 |
int rtargc = 9; |
81 |
/* overriding rtrace options */ |
82 |
char *myrtopts[] = { "-o~~TmWdp", "-h-", "-x", "1", "-y", "0", |
83 |
"-dt", "0", "-as", "0", "-aa", "0", NULL }; |
84 |
|
85 |
struct rtproc rt0; /* head of rtrace process list */ |
86 |
|
87 |
struct rtproc *rt_unproc = NULL; /* unprocessed ray trees */ |
88 |
|
89 |
char persistfn[] = "pfXXXXXX"; /* persist file name */ |
90 |
|
91 |
int gargc; /* global argc */ |
92 |
char **gargv; /* global argv */ |
93 |
#define progname gargv[0] |
94 |
|
95 |
char *octree; /* global octree argument */ |
96 |
|
97 |
int inpfmt = 'a'; /* input format */ |
98 |
int outfmt = 'a'; /* output format */ |
99 |
|
100 |
int header = 1; /* output header? */ |
101 |
int xres = 0; /* horiz. output resolution */ |
102 |
int yres = 0; /* vert. output resolution */ |
103 |
|
104 |
unsigned long raysleft; /* number of rays left to trace */ |
105 |
long waitflush; /* how long until next flush */ |
106 |
|
107 |
unsigned long lastray = 0; /* last ray number sent */ |
108 |
unsigned long lastdone = 0; /* last ray processed */ |
109 |
|
110 |
int using_stdout = 0; /* are we using stdout? */ |
111 |
|
112 |
const char *modname[MAXMODLIST]; /* ordered modifier name list */ |
113 |
int nmods = 0; /* number of modifiers */ |
114 |
|
115 |
MODCONT *addmodifier(char *modn, char *outf, char *binv); |
116 |
void addmodfile(char *fname, char *outf, char *binv); |
117 |
|
118 |
void init(int np); |
119 |
int done_rprocs(struct rtproc *rtp); |
120 |
void recover_output(FILE *fin); |
121 |
void trace_contribs(FILE *fin); |
122 |
struct rtproc *wait_rproc(void); |
123 |
struct rtproc *get_rproc(void); |
124 |
void queue_raytree(struct rtproc *rtp); |
125 |
void process_queue(void); |
126 |
|
127 |
void put_contrib(const DCOLOR cnt, FILE *fout); |
128 |
void add_contrib(const char *modn); |
129 |
void done_contrib(void); |
130 |
|
131 |
/* set input/output format */ |
132 |
static void |
133 |
setformat(const char *fmt) |
134 |
{ |
135 |
switch (fmt[0]) { |
136 |
case 'f': |
137 |
case 'd': |
138 |
SET_FILE_BINARY(stdin); |
139 |
/* fall through */ |
140 |
case 'a': |
141 |
inpfmt = fmt[0]; |
142 |
break; |
143 |
default: |
144 |
goto fmterr; |
145 |
} |
146 |
switch (fmt[1]) { |
147 |
case '\0': |
148 |
outfmt = inpfmt; |
149 |
return; |
150 |
case 'a': |
151 |
case 'f': |
152 |
case 'd': |
153 |
case 'c': |
154 |
outfmt = fmt[1]; |
155 |
break; |
156 |
default: |
157 |
goto fmterr; |
158 |
} |
159 |
if (!fmt[2]) |
160 |
return; |
161 |
fmterr: |
162 |
sprintf(errmsg, "Illegal i/o format: -f%s", fmt); |
163 |
error(USER, errmsg); |
164 |
} |
165 |
|
166 |
/* gather rays from rtrace and output contributions */ |
167 |
int |
168 |
main(int argc, char *argv[]) |
169 |
{ |
170 |
int nprocs = 1; |
171 |
int recover = 0; |
172 |
char *curout = NULL; |
173 |
char *binval = NULL; |
174 |
char fmt[8]; |
175 |
int i, j; |
176 |
/* global program name */ |
177 |
gargv = argv; |
178 |
/* initialize calcomp routines */ |
179 |
esupport |= E_VARIABLE|E_FUNCTION|E_INCHAN|E_RCONST|E_REDEFW; |
180 |
esupport &= ~(E_OUTCHAN); |
181 |
varset("PI", ':', PI); |
182 |
/* get our options */ |
183 |
for (i = 1; i < argc-1; i++) { |
184 |
/* expand arguments */ |
185 |
while ((j = expandarg(&argc, &argv, i)) > 0) |
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; |
187 |
if (j < 0) { |
188 |
fprintf(stderr, "%s: cannot expand '%s'", |
189 |
argv[0], argv[i]); |
190 |
exit(1); |
191 |
} |
192 |
if (argv[i][0] == '-') |
193 |
switch (argv[i][1]) { |
194 |
case 'r': /* recover output */ |
195 |
if (argv[i][2]) break; |
196 |
recover++; |
197 |
continue; |
198 |
case 'n': /* number of processes */ |
199 |
if (argv[i][2] || i >= argc-2) break; |
200 |
nprocs = atoi(argv[++i]); |
201 |
if (nprocs <= 0) |
202 |
error(USER, "illegal number of processes"); |
203 |
continue; |
204 |
case 'h': /* output header? */ |
205 |
switch (argv[i][2]) { |
206 |
case '\0': |
207 |
header = !header; |
208 |
continue; |
209 |
case '+': case '1': |
210 |
case 'T': case 't': |
211 |
case 'Y': case 'y': |
212 |
header = 1; |
213 |
continue; |
214 |
case '-': case '0': |
215 |
case 'F': case 'f': |
216 |
case 'N': case 'n': |
217 |
header = 0; |
218 |
continue; |
219 |
} |
220 |
break; |
221 |
case 'f': /* file or i/o format */ |
222 |
if (!argv[i][2]) { |
223 |
char *fpath; |
224 |
if (i >= argc-2) break; |
225 |
fpath = getpath(argv[++i], |
226 |
getrlibpath(), R_OK); |
227 |
if (fpath == NULL) { |
228 |
sprintf(errmsg, |
229 |
"cannot find file '%s'", |
230 |
argv[i]); |
231 |
error(USER, errmsg); |
232 |
} |
233 |
fcompile(fpath); |
234 |
continue; |
235 |
} |
236 |
setformat(argv[i]+2); |
237 |
continue; |
238 |
case 'e': /* expression */ |
239 |
if (argv[i][2] || i >= argc-2) break; |
240 |
scompile(argv[++i], NULL, 0); |
241 |
continue; |
242 |
case 'o': /* output file spec. */ |
243 |
if (argv[i][2] || i >= argc-2) break; |
244 |
curout = argv[++i]; |
245 |
continue; |
246 |
case 'x': /* horiz. output resolution */ |
247 |
if (argv[i][2] || i >= argc-2) break; |
248 |
xres = atoi(argv[++i]); |
249 |
continue; |
250 |
case 'y': /* vert. output resolution */ |
251 |
if (argv[i][2] || i >= argc-2) break; |
252 |
yres = atoi(argv[++i]); |
253 |
continue; |
254 |
case 'b': /* bin expression */ |
255 |
if (argv[i][2] || i >= argc-2) break; |
256 |
binval = argv[++i]; |
257 |
continue; |
258 |
case 'm': /* modifier name */ |
259 |
if (argv[i][2] || i >= argc-2) break; |
260 |
rtargv[rtargc++] = "-ti"; |
261 |
rtargv[rtargc++] = argv[++i]; |
262 |
addmodifier(argv[i], curout, binval); |
263 |
continue; |
264 |
case 'M': /* modifier file */ |
265 |
if (argv[i][2] || i >= argc-2) break; |
266 |
rtargv[rtargc++] = "-tI"; |
267 |
rtargv[rtargc++] = argv[++i]; |
268 |
addmodfile(argv[i], curout, binval); |
269 |
continue; |
270 |
} |
271 |
rtargv[rtargc++] = argv[i]; /* assume rtrace option */ |
272 |
} |
273 |
/* set global argument list */ |
274 |
gargc = argc; gargv = argv; |
275 |
/* add "mandatory" rtrace settings */ |
276 |
for (j = 0; myrtopts[j] != NULL; j++) |
277 |
rtargv[rtargc++] = myrtopts[j]; |
278 |
/* just asking for defaults? */ |
279 |
if (!strcmp(argv[i], "-defaults")) { |
280 |
char sxres[16], syres[16]; |
281 |
char *rtpath; |
282 |
printf("-n %-2d\t\t\t\t# number of processes\n", nprocs); |
283 |
fflush(stdout); /* report OUR options */ |
284 |
rtargv[rtargc++] = header ? "-h+" : "-h-"; |
285 |
sprintf(fmt, "-f%c%c", inpfmt, outfmt); |
286 |
rtargv[rtargc++] = fmt; |
287 |
rtargv[rtargc++] = "-x"; |
288 |
sprintf(sxres, "%d", xres); |
289 |
rtargv[rtargc++] = sxres; |
290 |
rtargv[rtargc++] = "-y"; |
291 |
sprintf(syres, "%d", yres); |
292 |
rtargv[rtargc++] = syres; |
293 |
rtargv[rtargc++] = "-oTW"; |
294 |
rtargv[rtargc++] = "-defaults"; |
295 |
rtargv[rtargc] = NULL; |
296 |
rtpath = getpath(rtargv[0], getenv("PATH"), X_OK); |
297 |
if (rtpath == NULL) { |
298 |
eputs(rtargv[0]); |
299 |
eputs(": command not found\n"); |
300 |
exit(1); |
301 |
} |
302 |
execv(rtpath, rtargv); |
303 |
perror(rtpath); /* execv() should not return */ |
304 |
exit(1); |
305 |
} |
306 |
if (nprocs > 1) { /* add persist file if parallel */ |
307 |
rtargv[rtargc++] = "-PP"; |
308 |
rtargv[rtargc++] = mktemp(persistfn); |
309 |
} |
310 |
/* add format string */ |
311 |
sprintf(fmt, "-f%cf", inpfmt); |
312 |
rtargv[rtargc++] = fmt; |
313 |
/* octree argument is last */ |
314 |
if (i <= 0 || i != argc-1 || argv[i][0] == '-') |
315 |
error(USER, "missing octree argument"); |
316 |
rtargv[rtargc++] = octree = argv[i]; |
317 |
rtargv[rtargc] = NULL; |
318 |
/* start rtrace */ |
319 |
init(nprocs); |
320 |
if (recover) /* perform recovery if requested */ |
321 |
recover_output(stdin); |
322 |
trace_contribs(stdin); /* compute contributions */ |
323 |
quit(0); |
324 |
} |
325 |
|
326 |
/* kill persistent rtrace process */ |
327 |
static void |
328 |
killpersist(void) |
329 |
{ |
330 |
FILE *fp = fopen(persistfn, "r"); |
331 |
int pid; |
332 |
|
333 |
if (fp == NULL) |
334 |
return; |
335 |
if (fscanf(fp, "%*s %d", &pid) != 1 || kill(pid, SIGALRM) < 0) |
336 |
unlink(persistfn); |
337 |
fclose(fp); |
338 |
} |
339 |
|
340 |
/* close rtrace processes and clean up */ |
341 |
int |
342 |
done_rprocs(struct rtproc *rtp) |
343 |
{ |
344 |
int st0, st1 = 0; |
345 |
|
346 |
if (rtp->next != NULL) { /* close last opened first! */ |
347 |
st1 = done_rprocs(rtp->next); |
348 |
free((void *)rtp->next); |
349 |
rtp->next = NULL; |
350 |
} |
351 |
st0 = close_process(&rtp->pd); |
352 |
if (st0 < 0) |
353 |
error(WARNING, "unknown return status from rtrace process"); |
354 |
else if (st0 > 0) |
355 |
return(st0); |
356 |
return(st1); |
357 |
} |
358 |
|
359 |
/* exit with status */ |
360 |
void |
361 |
quit(int status) |
362 |
{ |
363 |
int rtstat; |
364 |
|
365 |
if (rt0.next != NULL) /* terminate persistent rtrace */ |
366 |
killpersist(); |
367 |
/* clean up rtrace process(es) */ |
368 |
rtstat = done_rprocs(&rt0); |
369 |
if (status == 0) |
370 |
status = rtstat; |
371 |
exit(status); /* flushes all output streams */ |
372 |
} |
373 |
|
374 |
/* start rtrace processes and initialize */ |
375 |
void |
376 |
init(int np) |
377 |
{ |
378 |
struct rtproc *rtp; |
379 |
int i; |
380 |
int maxbytes; |
381 |
/* make sure we have something to do */ |
382 |
if (!nmods) |
383 |
error(USER, "No modifiers specified"); |
384 |
/* assign ray variables */ |
385 |
scompile("Dx=$1;Dy=$2;Dz=$3;", NULL, 0); |
386 |
scompile("Px=$4;Py=$5;Pz=$6;", NULL, 0); |
387 |
/* set up signal handling */ |
388 |
signal(SIGINT, quit); |
389 |
#ifdef SIGHUP |
390 |
signal(SIGHUP, quit); |
391 |
#endif |
392 |
#ifdef SIGTERM |
393 |
signal(SIGTERM, quit); |
394 |
#endif |
395 |
#ifdef SIGPIPE |
396 |
signal(SIGPIPE, quit); |
397 |
#endif |
398 |
rtp = &rt0; /* start rtrace process(es) */ |
399 |
for (i = 0; i++ < np; ) { |
400 |
errno = 0; |
401 |
maxbytes = open_process(&rtp->pd, rtargv); |
402 |
if (maxbytes == 0) { |
403 |
eputs(rtargv[0]); |
404 |
eputs(": command not found\n"); |
405 |
exit(1); |
406 |
} |
407 |
if (maxbytes < 0) |
408 |
error(SYSTEM, "cannot start rtrace process"); |
409 |
if (maxbytes > treebufsiz) |
410 |
treebufsiz = maxbytes; |
411 |
rtp->raynum = 0; |
412 |
rtp->bsiz = 0; |
413 |
rtp->buf = NULL; |
414 |
rtp->nbr = 0; |
415 |
if (i == np) /* last process? */ |
416 |
break; |
417 |
if (i == 1) |
418 |
sleep(2); /* wait for persist file */ |
419 |
rtp->next = (struct rtproc *)malloc(sizeof(struct rtproc)); |
420 |
if (rtp->next == NULL) |
421 |
error(SYSTEM, "out of memory in init"); |
422 |
rtp = rtp->next; |
423 |
} |
424 |
rtp->next = NULL; /* terminate list */ |
425 |
if (yres > 0) { |
426 |
if (xres > 0) |
427 |
raysleft = (unsigned long)xres*yres; |
428 |
else |
429 |
raysleft = yres; |
430 |
} else |
431 |
raysleft = 0; |
432 |
waitflush = xres; |
433 |
} |
434 |
|
435 |
/* add modifier to our list to track */ |
436 |
MODCONT * |
437 |
addmodifier(char *modn, char *outf, char *binv) |
438 |
{ |
439 |
LUENT *lep = lu_find(&modconttab, modn); |
440 |
MODCONT *mp; |
441 |
|
442 |
if (lep->data != NULL) { |
443 |
sprintf(errmsg, "duplicate modifier '%s'", modn); |
444 |
error(USER, errmsg); |
445 |
} |
446 |
if (nmods >= MAXMODLIST) |
447 |
error(USER, "too many modifiers"); |
448 |
modname[nmods++] = modn; /* XXX assumes static string */ |
449 |
lep->key = modn; /* XXX assumes static string */ |
450 |
mp = (MODCONT *)malloc(sizeof(MODCONT)); |
451 |
if (mp == NULL) |
452 |
error(SYSTEM, "out of memory in addmodifier"); |
453 |
lep->data = (char *)mp; |
454 |
mp->outspec = outf; /* XXX assumes static string */ |
455 |
mp->modname = modn; /* XXX assumes static string */ |
456 |
if (binv != NULL) |
457 |
mp->binv = eparse(binv); |
458 |
else |
459 |
mp->binv = eparse("0"); |
460 |
mp->nbins = 1; |
461 |
setcolor(mp->cbin[0], 0., 0., 0.); |
462 |
return mp; |
463 |
} |
464 |
|
465 |
/* add modifiers from a file list */ |
466 |
void |
467 |
addmodfile(char *fname, char *outf, char *binv) |
468 |
{ |
469 |
char *mname[MAXMODLIST]; |
470 |
int i; |
471 |
/* find the file & store strings */ |
472 |
if (wordfile(mname, getpath(fname, getrlibpath(), R_OK)) < 0) { |
473 |
sprintf(errmsg, "cannot find modifier file '%s'", fname); |
474 |
error(SYSTEM, errmsg); |
475 |
} |
476 |
for (i = 0; mname[i]; i++) /* add each one */ |
477 |
addmodifier(mname[i], outf, binv); |
478 |
} |
479 |
|
480 |
/* put string to stderr */ |
481 |
void |
482 |
eputs(char *s) |
483 |
{ |
484 |
static int midline = 0; |
485 |
|
486 |
if (!*s) return; |
487 |
if (!midline) { |
488 |
fputs(progname, stderr); |
489 |
fputs(": ", stderr); |
490 |
} |
491 |
fputs(s, stderr); |
492 |
midline = s[strlen(s)-1] != '\n'; |
493 |
} |
494 |
|
495 |
/* construct output file name and return flags whether modifier/bin present */ |
496 |
int |
497 |
ofname(char *oname, const char *ospec, const char *mname, int bn) |
498 |
{ |
499 |
const char *mnp = NULL; |
500 |
const char *bnp = NULL; |
501 |
const char *cp; |
502 |
|
503 |
if (ospec == NULL) |
504 |
return -1; |
505 |
for (cp = ospec; *cp; cp++) /* check format position(s) */ |
506 |
if (*cp == '%') { |
507 |
do |
508 |
++cp; |
509 |
while (isdigit(*cp)); |
510 |
switch (*cp) { |
511 |
case '%': |
512 |
break; |
513 |
case 's': |
514 |
if (mnp != NULL) |
515 |
return -1; |
516 |
mnp = cp; |
517 |
break; |
518 |
case 'd': |
519 |
if (bnp != NULL) |
520 |
return -1; |
521 |
bnp = cp; |
522 |
break; |
523 |
default: |
524 |
return -1; |
525 |
} |
526 |
} |
527 |
if (mnp != NULL) { /* create file name */ |
528 |
if (bnp != NULL) { |
529 |
if (bnp > mnp) |
530 |
sprintf(oname, ospec, mname, bn); |
531 |
else |
532 |
sprintf(oname, ospec, bn, mname); |
533 |
return OF_MODIFIER|OF_BIN; |
534 |
} |
535 |
sprintf(oname, ospec, mname); |
536 |
return OF_MODIFIER; |
537 |
} |
538 |
if (bnp != NULL) { |
539 |
sprintf(oname, ospec, bn); |
540 |
return OF_BIN; |
541 |
} |
542 |
strcpy(oname, ospec); |
543 |
return 0; |
544 |
} |
545 |
|
546 |
/* write header to the given output stream */ |
547 |
void |
548 |
printheader(FILE *fout, const char *info) |
549 |
{ |
550 |
extern char VersionID[]; |
551 |
FILE *fin = fopen(octree, "r"); |
552 |
|
553 |
if (fin == NULL) |
554 |
quit(1); |
555 |
checkheader(fin, "ignore", fout); /* copy octree header */ |
556 |
fclose(fin); |
557 |
printargs(gargc-1, gargv, fout); /* add our command */ |
558 |
fprintf(fout, "SOFTWARE= %s\n", VersionID); |
559 |
fputnow(fout); |
560 |
if (info != NULL) /* add extra info if given */ |
561 |
fputs(info, fout); |
562 |
switch (outfmt) { /* add output format */ |
563 |
case 'a': |
564 |
fputformat("ascii", fout); |
565 |
break; |
566 |
case 'f': |
567 |
fputformat("float", fout); |
568 |
break; |
569 |
case 'd': |
570 |
fputformat("double", fout); |
571 |
break; |
572 |
case 'c': |
573 |
fputformat(COLRFMT, fout); |
574 |
break; |
575 |
} |
576 |
fputc('\n', fout); |
577 |
if (xres > 0) { |
578 |
if (yres > 0) /* resolution string */ |
579 |
fprtresolu(xres, yres, fout); |
580 |
fflush(fout); |
581 |
} |
582 |
} |
583 |
|
584 |
/* Get output file pointer (open and write header if new) */ |
585 |
FILE * |
586 |
getofile(const char *ospec, const char *mname, int bn) |
587 |
{ |
588 |
int ofl; |
589 |
char oname[1024]; |
590 |
LUENT *lep; |
591 |
|
592 |
if (ospec == NULL) { /* use stdout? */ |
593 |
if (!using_stdout) { |
594 |
if (outfmt != 'a') |
595 |
SET_FILE_BINARY(stdout); |
596 |
if (header) |
597 |
printheader(stdout, NULL); |
598 |
} |
599 |
using_stdout = 1; |
600 |
return stdout; |
601 |
} |
602 |
ofl = ofname(oname, ospec, mname, bn); /* get output name */ |
603 |
if (ofl < 0) { |
604 |
sprintf(errmsg, "bad output format '%s'", ospec); |
605 |
error(USER, errmsg); |
606 |
} |
607 |
lep = lu_find(&ofiletab, oname); /* look it up */ |
608 |
if (lep->key == NULL) /* new entry */ |
609 |
lep->key = strcpy((char *)malloc(strlen(oname)+1), oname); |
610 |
if (lep->data == NULL) { /* open output file */ |
611 |
FILE *fp; |
612 |
int i; |
613 |
if (oname[0] == '!') /* output to command */ |
614 |
fp = popen(oname+1, "w"); |
615 |
else |
616 |
fp = fopen(oname, "w"); |
617 |
if (fp == NULL) { |
618 |
sprintf(errmsg, "cannot open '%s' for writing", oname); |
619 |
error(SYSTEM, errmsg); |
620 |
} |
621 |
if (outfmt != 'a') |
622 |
SET_FILE_BINARY(fp); |
623 |
if (header) { |
624 |
char info[512]; |
625 |
char *cp = info; |
626 |
sprintf(cp, "MODIFIER=%s\n", mname); |
627 |
while (*cp) ++cp; |
628 |
if (ofl & OF_BIN) { |
629 |
sprintf(cp, "BIN=%d\n", bn); |
630 |
while (*cp) ++cp; |
631 |
} |
632 |
*cp = '\0'; |
633 |
printheader(fp, info); |
634 |
} |
635 |
/* play catch-up */ |
636 |
for (i = 0; i < lastdone; i++) { |
637 |
static const DCOLOR nocontrib = BLKCOLOR; |
638 |
put_contrib(nocontrib, fp); |
639 |
if (outfmt == 'a') |
640 |
putc('\n', fp); |
641 |
} |
642 |
if (xres > 0) |
643 |
fflush(fp); |
644 |
lep->data = (char *)fp; |
645 |
} |
646 |
return (FILE *)lep->data; /* return open file pointer */ |
647 |
} |
648 |
|
649 |
/* read input ray into buffer */ |
650 |
int |
651 |
getinp(char *buf, FILE *fp) |
652 |
{ |
653 |
char *cp; |
654 |
int i; |
655 |
|
656 |
switch (inpfmt) { |
657 |
case 'a': |
658 |
cp = buf; /* make sure we get 6 floats */ |
659 |
for (i = 0; i < 6; i++) { |
660 |
if (fgetword(cp, buf+127-cp, fp) == NULL) |
661 |
return 0; |
662 |
if ((cp = fskip(cp)) == NULL || *cp) |
663 |
return 0; |
664 |
*cp++ = ' '; |
665 |
} |
666 |
getc(fp); /* get/put eol */ |
667 |
*cp-- = '\0'; *cp = '\n'; |
668 |
return strlen(buf); |
669 |
case 'f': |
670 |
if (fread(buf, sizeof(float), 6, fp) < 6) |
671 |
return 0; |
672 |
return sizeof(float)*6; |
673 |
case 'd': |
674 |
if (fread(buf, sizeof(double), 6, fp) < 6) |
675 |
return 0; |
676 |
return sizeof(double)*6; |
677 |
} |
678 |
error(INTERNAL, "botched input format"); |
679 |
return 0; /* pro forma return */ |
680 |
} |
681 |
|
682 |
static float rparams[9]; /* traced ray parameters */ |
683 |
|
684 |
/* return channel (ray) value */ |
685 |
double |
686 |
chanvalue(int n) |
687 |
{ |
688 |
if (--n < 0 || n >= 6) |
689 |
error(USER, "illegal channel number ($N)"); |
690 |
return rparams[n+3]; |
691 |
} |
692 |
|
693 |
/* add current ray contribution to the appropriate modifier bin */ |
694 |
void |
695 |
add_contrib(const char *modn) |
696 |
{ |
697 |
LUENT *le = lu_find(&modconttab, modn); |
698 |
MODCONT *mp = (MODCONT *)le->data; |
699 |
int bn; |
700 |
|
701 |
if (mp == NULL) { |
702 |
sprintf(errmsg, "unexpected modifier '%s' from rtrace", modn); |
703 |
error(USER, errmsg); |
704 |
} |
705 |
eclock++; /* get bin number */ |
706 |
bn = (int)(evalue(mp->binv) + .5); |
707 |
if (bn <= 0) |
708 |
bn = 0; |
709 |
else if (bn > mp->nbins) { /* new bin */ |
710 |
mp = (MODCONT *)realloc(mp, sizeof(MODCONT) + |
711 |
bn*sizeof(DCOLOR)); |
712 |
if (mp == NULL) |
713 |
error(SYSTEM, "out of memory in add_contrib"); |
714 |
memset(mp->cbin+mp->nbins, 0, sizeof(DCOLOR)*(bn+1-mp->nbins)); |
715 |
mp->nbins = bn+1; |
716 |
le->data = (char *)mp; |
717 |
} |
718 |
addcolor(mp->cbin[bn], rparams); |
719 |
} |
720 |
|
721 |
/* output newline to ASCII file and/or flush as requested */ |
722 |
static int |
723 |
puteol(const LUENT *e, void *p) |
724 |
{ |
725 |
FILE *fp = (FILE *)e->data; |
726 |
|
727 |
if (outfmt == 'a') |
728 |
putc('\n', fp); |
729 |
if (!waitflush) |
730 |
fflush(fp); |
731 |
if (ferror(fp)) { |
732 |
sprintf(errmsg, "write error on file '%s'", e->key); |
733 |
error(SYSTEM, errmsg); |
734 |
} |
735 |
return 0; |
736 |
} |
737 |
|
738 |
/* put out ray contribution to file */ |
739 |
void |
740 |
put_contrib(const DCOLOR cnt, FILE *fout) |
741 |
{ |
742 |
float fv[3]; |
743 |
COLR cv; |
744 |
|
745 |
switch (outfmt) { |
746 |
case 'a': |
747 |
fprintf(fout, "%.6e\t%.6e\t%.6e\t", cnt[0], cnt[1], cnt[2]); |
748 |
break; |
749 |
case 'f': |
750 |
fv[0] = cnt[0]; |
751 |
fv[1] = cnt[1]; |
752 |
fv[2] = cnt[2]; |
753 |
fwrite(fv, sizeof(float), 3, fout); |
754 |
break; |
755 |
case 'd': |
756 |
fwrite(cnt, sizeof(double), 3, fout); |
757 |
break; |
758 |
case 'c': |
759 |
setcolr(cv, cnt[0], cnt[1], cnt[2]); |
760 |
fwrite(cv, sizeof(cv), 1, fout); |
761 |
break; |
762 |
default: |
763 |
error(INTERNAL, "botched output format"); |
764 |
} |
765 |
} |
766 |
|
767 |
/* output ray tallies and clear for next primary */ |
768 |
void |
769 |
done_contrib(void) |
770 |
{ |
771 |
int i, j; |
772 |
MODCONT *mp; |
773 |
FILE *fp; |
774 |
/* output modifiers in order */ |
775 |
for (i = 0; i < nmods; i++) { |
776 |
mp = (MODCONT *)lu_find(&modconttab,modname[i])->data; |
777 |
fp = getofile(mp->outspec, mp->modname, 0); |
778 |
put_contrib(mp->cbin[0], fp); |
779 |
if (mp->nbins > 3 && /* minor optimization */ |
780 |
fp == getofile(mp->outspec, mp->modname, 1)) |
781 |
for (j = 1; j < mp->nbins; j++) |
782 |
put_contrib(mp->cbin[j], fp); |
783 |
else |
784 |
for (j = 1; j < mp->nbins; j++) |
785 |
put_contrib(mp->cbin[j], |
786 |
getofile(mp->outspec, mp->modname, j)); |
787 |
/* clear for next ray tree */ |
788 |
memset(mp->cbin, 0, sizeof(DCOLOR)*mp->nbins); |
789 |
} |
790 |
--waitflush; /* terminate records */ |
791 |
lu_doall(&ofiletab, puteol, NULL); |
792 |
if (using_stdout & (outfmt == 'a')) |
793 |
putc('\n', stdout); |
794 |
if (!waitflush) { |
795 |
waitflush = xres; |
796 |
if (using_stdout) |
797 |
fflush(stdout); |
798 |
} |
799 |
} |
800 |
|
801 |
/* queue completed ray tree produced by rtrace process */ |
802 |
void |
803 |
queue_raytree(struct rtproc *rtp) |
804 |
{ |
805 |
struct rtproc *rtu, *rtl = NULL; |
806 |
/* insert following ray order */ |
807 |
for (rtu = rt_unproc; rtu != NULL; rtu = (rtl=rtu)->next) |
808 |
if (rtp->raynum < rtu->raynum) |
809 |
break; |
810 |
rtu = (struct rtproc *)malloc(sizeof(struct rtproc)); |
811 |
if (rtu == NULL) |
812 |
error(SYSTEM, "out of memory in queue_raytree"); |
813 |
*rtu = *rtp; |
814 |
if (rtl == NULL) { |
815 |
rtu->next = rt_unproc; |
816 |
rt_unproc = rtu; |
817 |
} else { |
818 |
rtu->next = rtl->next; |
819 |
rtl->next = rtu; |
820 |
} |
821 |
rtp->raynum = 0; /* clear path for next ray tree */ |
822 |
rtp->bsiz = 0; |
823 |
rtp->buf = NULL; |
824 |
rtp->nbr = 0; |
825 |
} |
826 |
|
827 |
/* process completed ray trees from our queue */ |
828 |
void |
829 |
process_queue(void) |
830 |
{ |
831 |
char modname[128]; |
832 |
/* ray-ordered queue */ |
833 |
while (rt_unproc != NULL && rt_unproc->raynum == lastdone+1) { |
834 |
struct rtproc *rtp = rt_unproc; |
835 |
int n = rtp->nbr; |
836 |
const char *cp = rtp->buf; |
837 |
while (n > 0) { /* process rays */ |
838 |
register char *mnp = modname; |
839 |
/* skip leading tabs */ |
840 |
while (n > 0 && *cp == '\t') { |
841 |
cp++; n--; |
842 |
} |
843 |
if (!n || !(isalpha(*cp) | (*cp == '_'))) |
844 |
error(USER, "bad modifier name from rtrace"); |
845 |
/* get modifier name */ |
846 |
while (n > 0 && *cp != '\t') { |
847 |
*mnp++ = *cp++; n--; |
848 |
} |
849 |
*mnp = '\0'; |
850 |
cp++; n--; /* eat following tab */ |
851 |
if (n < (int)(sizeof(float)*9)) |
852 |
error(USER, "incomplete ray value from rtrace"); |
853 |
/* add ray contribution */ |
854 |
memcpy(rparams, cp, sizeof(float)*9); |
855 |
cp += sizeof(float)*9; n -= sizeof(float)*9; |
856 |
add_contrib(modname); |
857 |
} |
858 |
done_contrib(); /* sum up contributions & output */ |
859 |
lastdone = rtp->raynum; |
860 |
free(rtp->buf); /* free up buffer space */ |
861 |
rt_unproc = rtp->next; |
862 |
free(rtp); /* done with this ray tree */ |
863 |
} |
864 |
} |
865 |
|
866 |
/* wait for rtrace process to finish with ray tree */ |
867 |
struct rtproc * |
868 |
wait_rproc(void) |
869 |
{ |
870 |
struct rtproc *rtfree = NULL; |
871 |
fd_set readset, errset; |
872 |
int nr; |
873 |
struct rtproc *rt; |
874 |
int n; |
875 |
|
876 |
do { |
877 |
nr = 0; /* prepare select call */ |
878 |
FD_ZERO(&readset); FD_ZERO(&errset); n = 0; |
879 |
for (rt = &rt0; rt != NULL; rt = rt->next) { |
880 |
if (rt->raynum) { |
881 |
FD_SET(rt->pd.r, &readset); |
882 |
++nr; |
883 |
} |
884 |
FD_SET(rt->pd.r, &errset); |
885 |
if (rt->pd.r >= n) |
886 |
n = rt->pd.r + 1; |
887 |
} |
888 |
if (!nr) /* no rays pending */ |
889 |
break; |
890 |
if (nr > 1) { /* call select for multiple proc's */ |
891 |
errno = 0; |
892 |
if (select(n, &readset, NULL, &errset, NULL) < 0) |
893 |
error(SYSTEM, "select call error in wait_rproc()"); |
894 |
} else |
895 |
FD_ZERO(&errset); |
896 |
nr = 0; |
897 |
for (rt = &rt0; rt != NULL; rt = rt->next) { |
898 |
if (!FD_ISSET(rt->pd.r, &readset) && |
899 |
!FD_ISSET(rt->pd.r, &errset)) |
900 |
continue; |
901 |
if (rt->buf == NULL) { |
902 |
rt->bsiz = treebufsiz; |
903 |
rt->buf = (char *)malloc(treebufsiz); |
904 |
} else if (rt->nbr + BUFSIZ > rt->bsiz) { |
905 |
if (rt->bsiz + BUFSIZ <= treebufsiz) |
906 |
rt->bsiz = treebufsiz; |
907 |
else |
908 |
rt->bsiz = treebufsiz += BUFSIZ; |
909 |
rt->buf = (char *)realloc(rt->buf, rt->bsiz); |
910 |
} |
911 |
if (rt->buf == NULL) |
912 |
error(SYSTEM, "out of memory in wait_rproc"); |
913 |
nr = read(rt->pd.r, rt->buf+rt->nbr, rt->bsiz-rt->nbr); |
914 |
if (nr <= 0) |
915 |
error(USER, "rtrace process died"); |
916 |
rt->nbr += nr; /* advance & check */ |
917 |
if (rt->nbr >= 4 && !memcmp(rt->buf+rt->nbr-4, |
918 |
"~\t~\t", 4)) { |
919 |
rt->nbr -= 4; /* elide terminator */ |
920 |
queue_raytree(rt); |
921 |
rtfree = rt; /* ready for next ray */ |
922 |
} |
923 |
} |
924 |
} while ((rtfree == NULL) & (nr > 0)); /* repeat until ready or out */ |
925 |
return rtfree; |
926 |
} |
927 |
|
928 |
/* return next available rtrace process */ |
929 |
struct rtproc * |
930 |
get_rproc(void) |
931 |
{ |
932 |
struct rtproc *rtp; |
933 |
/* check for idle rtrace */ |
934 |
for (rtp = &rt0; rtp != NULL; rtp = rtp->next) |
935 |
if (!rtp->raynum) |
936 |
return rtp; |
937 |
return wait_rproc(); /* need to wait for one */ |
938 |
} |
939 |
|
940 |
/* trace ray contributions (main loop) */ |
941 |
void |
942 |
trace_contribs(FILE *fin) |
943 |
{ |
944 |
char inpbuf[128]; |
945 |
int iblen; |
946 |
struct rtproc *rtp; |
947 |
/* loop over input */ |
948 |
while ((iblen = getinp(inpbuf, fin)) > 0) { |
949 |
if (lastray+1 < lastray) { /* counter rollover? */ |
950 |
while (wait_rproc() != NULL) |
951 |
process_queue(); |
952 |
lastdone = lastray = 0; |
953 |
} |
954 |
rtp = get_rproc(); /* get avail. rtrace process */ |
955 |
rtp->raynum = ++lastray; /* assign ray to it */ |
956 |
writebuf(rtp->pd.w, inpbuf, iblen); |
957 |
if (raysleft && !--raysleft) |
958 |
break; |
959 |
process_queue(); /* catch up with results */ |
960 |
} |
961 |
while (wait_rproc() != NULL) /* process outstanding rays */ |
962 |
process_queue(); |
963 |
if (raysleft) |
964 |
error(USER, "unexpected EOF on input"); |
965 |
lu_done(&ofiletab); /* close output files */ |
966 |
} |
967 |
|
968 |
/* seek on the given output file */ |
969 |
static int |
970 |
myseeko(const LUENT *e, void *p) |
971 |
{ |
972 |
if (fseeko((FILE *)e->data, *(off_t *)p, SEEK_CUR) < 0) { |
973 |
sprintf(errmsg, "seek error on file '%s'", e->key); |
974 |
error(SYSTEM, errmsg); |
975 |
} |
976 |
} |
977 |
|
978 |
/* recover output if possible */ |
979 |
void |
980 |
recover_output(FILE *fin) |
981 |
{ |
982 |
off_t lastout = -1; |
983 |
int outvsiz; |
984 |
char *outvfmt; |
985 |
int i, j; |
986 |
MODCONT *mp; |
987 |
int ofl; |
988 |
char oname[1024]; |
989 |
LUENT *ment, *oent; |
990 |
FILE *fp; |
991 |
off_t nvals; |
992 |
|
993 |
switch (outfmt) { |
994 |
case 'a': |
995 |
error(USER, "cannot recover ASCII output"); |
996 |
return; |
997 |
case 'f': |
998 |
outvsiz = sizeof(float)*3; |
999 |
outvfmt = "float"; |
1000 |
break; |
1001 |
case 'd': |
1002 |
outvsiz = sizeof(double)*3; |
1003 |
outvfmt = "double"; |
1004 |
break; |
1005 |
case 'c': |
1006 |
outvsiz = sizeof(COLR); |
1007 |
outvfmt = COLRFMT; |
1008 |
break; |
1009 |
default: |
1010 |
error(INTERNAL, "botched output format"); |
1011 |
return; |
1012 |
} |
1013 |
/* check modifier outputs */ |
1014 |
for (i = 0; i < nmods; i++) { |
1015 |
ment = lu_find(&modconttab,modname[i]); |
1016 |
mp = (MODCONT *)ment->data; |
1017 |
if (mp->outspec == NULL) |
1018 |
error(USER, "cannot recover from stdout"); |
1019 |
for (j = 0; ; j++) { /* check each bin's file */ |
1020 |
ofl = ofname(oname, mp->outspec, mp->modname, j); |
1021 |
if (ofl < 0) |
1022 |
error(USER, "bad output file specification"); |
1023 |
oent = lu_find(&ofiletab, oname); |
1024 |
if (oent->data != NULL) { /* saw this one already */ |
1025 |
if (ofl & OF_BIN) |
1026 |
continue; |
1027 |
break; |
1028 |
} |
1029 |
if (oname[0] == '!') |
1030 |
error(USER, "cannot recover from command"); |
1031 |
/* open output */ |
1032 |
fp = fopen(oname, "rb+"); |
1033 |
if (fp == NULL) { |
1034 |
if (j) |
1035 |
break; /* assume end of modifier */ |
1036 |
sprintf(errmsg, "missing recover file '%s'", |
1037 |
oname); |
1038 |
error(USER, errmsg); |
1039 |
} |
1040 |
nvals = lseek(fileno(fp), 0, SEEK_END); |
1041 |
if (nvals <= 0) { |
1042 |
lastout = 0; /* empty output, quit here */ |
1043 |
fclose(fp); |
1044 |
break; |
1045 |
} |
1046 |
lseek(fileno(fp), 0, SEEK_SET); |
1047 |
if (header) { |
1048 |
int xr, yr; |
1049 |
if (checkheader(fp, outvfmt, NULL) != 1) { |
1050 |
sprintf(errmsg, |
1051 |
"format mismatch for '%s'", |
1052 |
oname); |
1053 |
error(USER, errmsg); |
1054 |
} |
1055 |
if (xres > 0 && yres > 0 && |
1056 |
(!fscnresolu(&xr, &yr, fp) || |
1057 |
xr != xres || |
1058 |
yr != yres)) { |
1059 |
sprintf(errmsg, |
1060 |
"resolution mismatch for '%s'", |
1061 |
oname); |
1062 |
error(USER, errmsg); |
1063 |
} |
1064 |
} |
1065 |
nvals = (nvals - (off_t)ftell(fp)) / outvsiz; |
1066 |
if (lastout < 0 || nvals < lastout) |
1067 |
lastout = nvals; |
1068 |
if (oent->key == NULL) /* new entry */ |
1069 |
oent->key = strcpy((char *) |
1070 |
malloc(strlen(oname)+1), oname); |
1071 |
oent->data = (char *)fp; |
1072 |
if (!(ofl & OF_BIN)) |
1073 |
break; /* no bin separation */ |
1074 |
} |
1075 |
if (!lastout) { /* empty output */ |
1076 |
error(WARNING, "no previous data to recover"); |
1077 |
lu_done(&ofiletab); /* reclose all outputs */ |
1078 |
return; |
1079 |
} |
1080 |
if (j > mp->nbins) { /* preallocate modifier bins */ |
1081 |
mp = (MODCONT *)realloc(mp, sizeof(MODCONT) + |
1082 |
(j-1)*sizeof(DCOLOR)); |
1083 |
if (mp == NULL) |
1084 |
error(SYSTEM, "out of memory in recover_output"); |
1085 |
memset(mp->cbin, 0, sizeof(DCOLOR)*mp->nbins); |
1086 |
mp->nbins = j; |
1087 |
ment->data = (char *)mp; |
1088 |
} |
1089 |
} |
1090 |
if (lastout < 0) { |
1091 |
error(WARNING, "no output files to recover"); |
1092 |
return; |
1093 |
} |
1094 |
if (raysleft && lastout >= raysleft) { |
1095 |
error(WARNING, "output appears to be complete"); |
1096 |
/* XXX should read & discard input? */ |
1097 |
quit(0); |
1098 |
} |
1099 |
/* seek on all files */ |
1100 |
nvals = lastout * outvsiz; |
1101 |
lu_doall(&ofiletab, myseeko, &nvals); |
1102 |
/* discard input */ |
1103 |
for (nvals = 0; nvals < lastout; nvals++) |
1104 |
if (getinp(oname, fin) <= 0) |
1105 |
error(USER, "unexpected EOF on input"); |
1106 |
lastray = lastdone = (unsigned long)lastout; |
1107 |
if (raysleft) |
1108 |
raysleft -= lastray; |
1109 |
} |