1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: rtcontrib.c,v 1.46 2007/11/17 06:21:28 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 evaluates > 0. 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 |
/* |
50 |
* The STREAMOUT structure holds an open FILE pointer and a count of |
51 |
* the number of RGB triplets per record, or 0 if unknown. |
52 |
*/ |
53 |
typedef struct { |
54 |
FILE *ofp; /* output file pointer */ |
55 |
int outpipe; /* output is to a pipe */ |
56 |
int reclen; /* triplets/record */ |
57 |
int xr, yr; /* output resolution for picture */ |
58 |
} STREAMOUT; |
59 |
|
60 |
/* close output stream and free record */ |
61 |
static void |
62 |
closestream(void *p) |
63 |
{ |
64 |
STREAMOUT *sop = (STREAMOUT *)p; |
65 |
int status; |
66 |
if (sop->outpipe) |
67 |
status = pclose(sop->ofp); |
68 |
else |
69 |
status = fclose(sop->ofp); |
70 |
if (status) |
71 |
error(SYSTEM, "error closing output stream"); |
72 |
free(p); |
73 |
} |
74 |
|
75 |
LUTAB ofiletab = LU_SINIT(free,closestream); /* output file table */ |
76 |
|
77 |
#define OF_MODIFIER 01 |
78 |
#define OF_BIN 02 |
79 |
|
80 |
STREAMOUT *getostream(const char *ospec, const char *mname, int bn, int noopen); |
81 |
int ofname(char *oname, const char *ospec, const char *mname, int bn); |
82 |
void printheader(FILE *fout, const char *info); |
83 |
void printresolu(FILE *fout, int xr, int yr); |
84 |
|
85 |
/* |
86 |
* The rcont structure is used to manage i/o with a particular |
87 |
* rtrace child process. Input is passed unchanged from stdin, |
88 |
* and output is processed in input order and accumulated according |
89 |
* to the corresponding modifier and bin number. |
90 |
*/ |
91 |
struct rtproc { |
92 |
struct rtproc *next; /* next in list of processes */ |
93 |
SUBPROC pd; /* rtrace pipe descriptors */ |
94 |
unsigned long raynum; /* ray number for this tree */ |
95 |
int bsiz; /* ray tree buffer length */ |
96 |
char *buf; /* ray tree buffer */ |
97 |
int nbr; /* number of bytes from rtrace */ |
98 |
}; /* rtrace process buffer */ |
99 |
|
100 |
/* rtrace command and defaults */ |
101 |
char *rtargv[256+2*MAXMODLIST] = { "rtrace", |
102 |
"-dj", ".5", "-dr", "3", |
103 |
"-ab", "1", "-ad", "350", }; |
104 |
|
105 |
int rtargc = 9; |
106 |
/* overriding rtrace options */ |
107 |
char *myrtopts[] = { "-h-", "-x", "1", "-y", "0", |
108 |
"-dt", "0", "-as", "0", "-aa", "0", NULL }; |
109 |
|
110 |
#define RTCOEFF "-o~~TmWdp" /* compute coefficients only */ |
111 |
#define RTCONTRIB "-o~~TmVdp" /* compute ray contributions */ |
112 |
|
113 |
struct rtproc rt0; /* head of rtrace process list */ |
114 |
|
115 |
struct rtproc *rt_unproc = NULL; /* unprocessed ray trees */ |
116 |
|
117 |
#define PERSIST_NONE 0 /* no persist file */ |
118 |
#define PERSIST_SINGLE 1 /* user set -P persist */ |
119 |
#define PERSIST_PARALL 2 /* user set -PP persist */ |
120 |
#define PERSIST_OURS 3 /* -PP persist belongs to us */ |
121 |
int persist_state = PERSIST_NONE; /* persist file state */ |
122 |
char persistfn[] = "pfXXXXXX"; /* our persist file name, if set */ |
123 |
|
124 |
int gargc; /* global argc */ |
125 |
char **gargv; /* global argv */ |
126 |
#define progname gargv[0] |
127 |
|
128 |
char *octree; /* global octree argument */ |
129 |
|
130 |
int inpfmt = 'a'; /* input format */ |
131 |
int outfmt = 'a'; /* output format */ |
132 |
|
133 |
int header = 1; /* output header? */ |
134 |
int accumulate = 0; /* accumulate ray values? */ |
135 |
int force_open = 0; /* truncate existing output? */ |
136 |
int recover = 0; /* recover previous output? */ |
137 |
int xres = 0; /* horiz. output resolution */ |
138 |
int yres = 0; /* vert. output resolution */ |
139 |
|
140 |
unsigned long raysleft; /* number of rays left to trace */ |
141 |
long waitflush; /* how long until next flush */ |
142 |
|
143 |
unsigned long lastray = 0; /* last ray number sent */ |
144 |
unsigned long lastdone = 0; /* last ray processed */ |
145 |
|
146 |
int using_stdout = 0; /* are we using stdout? */ |
147 |
|
148 |
const char *modname[MAXMODLIST]; /* ordered modifier name list */ |
149 |
int nmods = 0; /* number of modifiers */ |
150 |
|
151 |
#define queue_length() (lastray - lastdone) |
152 |
|
153 |
MODCONT *growmodifier(MODCONT *mp, int nb); |
154 |
MODCONT *addmodifier(char *modn, char *outf, char *binv, int bincnt); |
155 |
void addmodfile(char *fname, char *outf, char *binv, int bincnt); |
156 |
|
157 |
void init(int np); |
158 |
int done_rprocs(struct rtproc *rtp); |
159 |
void reload_output(void); |
160 |
void recover_output(FILE *fin); |
161 |
void trace_contribs(FILE *fin); |
162 |
struct rtproc *wait_rproc(void); |
163 |
struct rtproc *get_rproc(void); |
164 |
void queue_raytree(struct rtproc *rtp); |
165 |
void process_queue(void); |
166 |
|
167 |
void put_contrib(const DCOLOR cnt, FILE *fout); |
168 |
void add_contrib(const char *modn); |
169 |
void done_contrib(void); |
170 |
|
171 |
/* return number of open rtrace processes */ |
172 |
static int |
173 |
nrtprocs(void) |
174 |
{ |
175 |
int nrtp = 0; |
176 |
struct rtproc *rtp; |
177 |
|
178 |
for (rtp = &rt0; rtp != NULL; rtp = rtp->next) |
179 |
nrtp += rtp->pd.running; |
180 |
return(nrtp); |
181 |
} |
182 |
|
183 |
/* set input/output format */ |
184 |
static void |
185 |
setformat(const char *fmt) |
186 |
{ |
187 |
switch (fmt[0]) { |
188 |
case 'f': |
189 |
case 'd': |
190 |
SET_FILE_BINARY(stdin); |
191 |
/* fall through */ |
192 |
case 'a': |
193 |
inpfmt = fmt[0]; |
194 |
break; |
195 |
default: |
196 |
goto fmterr; |
197 |
} |
198 |
switch (fmt[1]) { |
199 |
case '\0': |
200 |
outfmt = inpfmt; |
201 |
return; |
202 |
case 'a': |
203 |
case 'f': |
204 |
case 'd': |
205 |
case 'c': |
206 |
outfmt = fmt[1]; |
207 |
break; |
208 |
default: |
209 |
goto fmterr; |
210 |
} |
211 |
if (!fmt[2]) |
212 |
return; |
213 |
fmterr: |
214 |
sprintf(errmsg, "Illegal i/o format: -f%s", fmt); |
215 |
error(USER, errmsg); |
216 |
} |
217 |
|
218 |
/* gather rays from rtrace and output contributions */ |
219 |
int |
220 |
main(int argc, char *argv[]) |
221 |
{ |
222 |
int contrib = 0; |
223 |
int nprocs = 1; |
224 |
char *curout = NULL; |
225 |
char *binval = NULL; |
226 |
int bincnt = 0; |
227 |
char fmt[8]; |
228 |
int i, j; |
229 |
/* need at least one argument */ |
230 |
if (argc < 2) { |
231 |
fprintf(stderr, |
232 |
"Usage: %s [-n nprocs][-V][-r][-e expr][-f source][-o ospec][-b binv] {-m mod | -M file} [rtrace options] octree\n", |
233 |
argv[0]); |
234 |
exit(1); |
235 |
} |
236 |
/* global program name */ |
237 |
gargv = argv; |
238 |
/* initialize calcomp routines */ |
239 |
esupport |= E_VARIABLE|E_FUNCTION|E_INCHAN|E_RCONST|E_REDEFW; |
240 |
esupport &= ~(E_OUTCHAN); |
241 |
varset("PI", ':', PI); |
242 |
/* get our options */ |
243 |
for (i = 1; i < argc-1; i++) { |
244 |
/* expand arguments */ |
245 |
while ((j = expandarg(&argc, &argv, i)) > 0) |
246 |
; |
247 |
if (j < 0) { |
248 |
fprintf(stderr, "%s: cannot expand '%s'", |
249 |
argv[0], argv[i]); |
250 |
exit(1); |
251 |
} |
252 |
if (argv[i][0] == '-') |
253 |
switch (argv[i][1]) { |
254 |
case 'n': /* number of processes */ |
255 |
if (argv[i][2] || i >= argc-2) break; |
256 |
nprocs = atoi(argv[++i]); |
257 |
if (nprocs <= 0) |
258 |
error(USER, "illegal number of processes"); |
259 |
continue; |
260 |
case 'V': /* output contributions */ |
261 |
switch (argv[i][2]) { |
262 |
case '\0': |
263 |
contrib = !contrib; |
264 |
continue; |
265 |
case '+': case '1': |
266 |
case 'T': case 't': |
267 |
case 'Y': case 'y': |
268 |
contrib = 1; |
269 |
continue; |
270 |
case '-': case '0': |
271 |
case 'F': case 'f': |
272 |
case 'N': case 'n': |
273 |
contrib = 0; |
274 |
continue; |
275 |
} |
276 |
break; |
277 |
case 'c': /* accumulate ray values */ |
278 |
switch (argv[i][2]) { |
279 |
case '\0': |
280 |
accumulate = !accumulate; |
281 |
continue; |
282 |
case '+': case '1': |
283 |
case 'T': case 't': |
284 |
case 'Y': case 'y': |
285 |
accumulate = 1; |
286 |
continue; |
287 |
case '-': case '0': |
288 |
case 'F': case 'f': |
289 |
case 'N': case 'n': |
290 |
accumulate = 0; |
291 |
continue; |
292 |
} |
293 |
break; |
294 |
case 'r': /* recover output */ |
295 |
if (argv[i][2]) break; |
296 |
recover = 1; |
297 |
continue; |
298 |
case 'h': /* output header? */ |
299 |
switch (argv[i][2]) { |
300 |
case '\0': |
301 |
header = !header; |
302 |
continue; |
303 |
case '+': case '1': |
304 |
case 'T': case 't': |
305 |
case 'Y': case 'y': |
306 |
header = 1; |
307 |
continue; |
308 |
case '-': case '0': |
309 |
case 'F': case 'f': |
310 |
case 'N': case 'n': |
311 |
header = 0; |
312 |
continue; |
313 |
} |
314 |
break; |
315 |
case 'f': /* file or force or format */ |
316 |
if (!argv[i][2]) { |
317 |
char *fpath; |
318 |
if (i >= argc-2) break; |
319 |
fpath = getpath(argv[++i], |
320 |
getrlibpath(), R_OK); |
321 |
if (fpath == NULL) { |
322 |
sprintf(errmsg, |
323 |
"cannot find file '%s'", |
324 |
argv[i]); |
325 |
error(USER, errmsg); |
326 |
} |
327 |
fcompile(fpath); |
328 |
continue; |
329 |
} |
330 |
if (argv[i][2] == 'o') { |
331 |
force_open = 1; |
332 |
continue; |
333 |
} |
334 |
setformat(argv[i]+2); |
335 |
continue; |
336 |
case 'e': /* expression */ |
337 |
if (argv[i][2] || i >= argc-2) break; |
338 |
scompile(argv[++i], NULL, 0); |
339 |
continue; |
340 |
case 'o': /* output file spec. */ |
341 |
if (argv[i][2] || i >= argc-2) break; |
342 |
curout = argv[++i]; |
343 |
continue; |
344 |
case 'x': /* horiz. output resolution */ |
345 |
if (argv[i][2] || i >= argc-2) break; |
346 |
xres = atoi(argv[++i]); |
347 |
continue; |
348 |
case 'y': /* vert. output resolution */ |
349 |
if (argv[i][2] || i >= argc-2) break; |
350 |
yres = atoi(argv[++i]); |
351 |
continue; |
352 |
case 'b': /* bin expression/count */ |
353 |
if (i >= argc-2) break; |
354 |
if (argv[i][2] == 'n') { |
355 |
bincnt = atoi(argv[++i]); |
356 |
continue; |
357 |
} |
358 |
if (argv[i][2]) break; |
359 |
binval = argv[++i]; |
360 |
continue; |
361 |
case 'm': /* modifier name */ |
362 |
if (argv[i][2] || i >= argc-2) break; |
363 |
rtargv[rtargc++] = "-ti"; |
364 |
rtargv[rtargc++] = argv[++i]; |
365 |
addmodifier(argv[i], curout, binval, bincnt); |
366 |
continue; |
367 |
case 'M': /* modifier file */ |
368 |
if (argv[i][2] || i >= argc-2) break; |
369 |
rtargv[rtargc++] = "-tI"; |
370 |
rtargv[rtargc++] = argv[++i]; |
371 |
addmodfile(argv[i], curout, binval, bincnt); |
372 |
continue; |
373 |
case 'P': /* persist file */ |
374 |
if (i >= argc-2) break; |
375 |
persist_state = (argv[i][2] == 'P') ? |
376 |
PERSIST_PARALL : PERSIST_SINGLE; |
377 |
rtargv[rtargc++] = argv[i]; |
378 |
rtargv[rtargc++] = argv[++i]; |
379 |
continue; |
380 |
} |
381 |
rtargv[rtargc++] = argv[i]; /* assume rtrace option */ |
382 |
} |
383 |
if (accumulate) /* no output flushing for single record */ |
384 |
xres = yres = 0; |
385 |
/* set global argument list */ |
386 |
gargc = argc; gargv = argv; |
387 |
/* add "mandatory" rtrace settings */ |
388 |
for (j = 0; myrtopts[j] != NULL; j++) |
389 |
rtargv[rtargc++] = myrtopts[j]; |
390 |
rtargv[rtargc++] = contrib ? RTCONTRIB : RTCOEFF; |
391 |
/* just asking for defaults? */ |
392 |
if (!strcmp(argv[i], "-defaults")) { |
393 |
char sxres[16], syres[16]; |
394 |
char *rtpath; |
395 |
printf("-n %-2d\t\t\t\t# number of processes\n", nprocs); |
396 |
printf("-V%c\t\t\t\t# output %s\n", contrib ? '+' : '-', |
397 |
contrib ? "contributions" : "coefficients"); |
398 |
printf("-c%c\t\t\t\t# %s\n", accumulate ? '+' : '-', |
399 |
accumulate ? "accumulate ray values" : |
400 |
"one output record per ray"); |
401 |
fflush(stdout); /* report OUR options */ |
402 |
rtargv[rtargc++] = header ? "-h+" : "-h-"; |
403 |
sprintf(fmt, "-f%c%c", inpfmt, outfmt); |
404 |
rtargv[rtargc++] = fmt; |
405 |
rtargv[rtargc++] = "-x"; |
406 |
sprintf(sxres, "%d", xres); |
407 |
rtargv[rtargc++] = sxres; |
408 |
rtargv[rtargc++] = "-y"; |
409 |
sprintf(syres, "%d", yres); |
410 |
rtargv[rtargc++] = syres; |
411 |
rtargv[rtargc++] = "-defaults"; |
412 |
rtargv[rtargc] = NULL; |
413 |
rtpath = getpath(rtargv[0], getenv("PATH"), X_OK); |
414 |
if (rtpath == NULL) { |
415 |
eputs(rtargv[0]); |
416 |
eputs(": command not found\n"); |
417 |
exit(1); |
418 |
} |
419 |
execv(rtpath, rtargv); |
420 |
perror(rtpath); /* execv() should not return */ |
421 |
exit(1); |
422 |
} |
423 |
if (nprocs > 1) { /* add persist file if parallel */ |
424 |
if (persist_state == PERSIST_SINGLE) |
425 |
error(USER, "use -PP option for multiple processes"); |
426 |
if (persist_state == PERSIST_NONE) { |
427 |
rtargv[rtargc++] = "-PP"; |
428 |
rtargv[rtargc++] = mktemp(persistfn); |
429 |
persist_state = PERSIST_OURS; |
430 |
} |
431 |
} |
432 |
/* add format string */ |
433 |
sprintf(fmt, "-f%cf", inpfmt); |
434 |
rtargv[rtargc++] = fmt; |
435 |
/* octree argument is last */ |
436 |
if (i <= 0 || i != argc-1 || argv[i][0] == '-') |
437 |
error(USER, "missing octree argument"); |
438 |
rtargv[rtargc++] = octree = argv[i]; |
439 |
rtargv[rtargc] = NULL; |
440 |
/* start rtrace & recover if requested */ |
441 |
init(nprocs); |
442 |
/* compute contributions */ |
443 |
trace_contribs(stdin); |
444 |
/* clean up */ |
445 |
quit(0); |
446 |
} |
447 |
|
448 |
#ifndef SIGALRM |
449 |
#define SIGALRM SIGTERM |
450 |
#endif |
451 |
/* kill persistent rtrace process */ |
452 |
static void |
453 |
killpersist(void) |
454 |
{ |
455 |
FILE *fp = fopen(persistfn, "r"); |
456 |
RT_PID pid; |
457 |
|
458 |
if (fp == NULL) |
459 |
return; |
460 |
if (fscanf(fp, "%*s %d", &pid) != 1 || kill(pid, SIGALRM) < 0) |
461 |
unlink(persistfn); |
462 |
fclose(fp); |
463 |
} |
464 |
|
465 |
/* close rtrace processes and clean up */ |
466 |
int |
467 |
done_rprocs(struct rtproc *rtp) |
468 |
{ |
469 |
int st0, st1 = 0; |
470 |
|
471 |
if (rtp->next != NULL) { /* close last opened first! */ |
472 |
st1 = done_rprocs(rtp->next); |
473 |
free((void *)rtp->next); |
474 |
rtp->next = NULL; |
475 |
} |
476 |
st0 = close_process(&rtp->pd); |
477 |
if (st0 < 0) |
478 |
error(WARNING, "unknown return status from rtrace process"); |
479 |
else if (st0 > 0) |
480 |
return(st0); |
481 |
return(st1); |
482 |
} |
483 |
|
484 |
/* exit with status */ |
485 |
void |
486 |
quit(int status) |
487 |
{ |
488 |
int rtstat; |
489 |
|
490 |
if (persist_state == PERSIST_OURS) /* terminate waiting rtrace */ |
491 |
killpersist(); |
492 |
/* clean up rtrace process(es) */ |
493 |
rtstat = done_rprocs(&rt0); |
494 |
if (status == 0) |
495 |
status = rtstat; |
496 |
exit(status); /* flushes all output streams */ |
497 |
} |
498 |
|
499 |
/* start rtrace processes and initialize */ |
500 |
void |
501 |
init(int np) |
502 |
{ |
503 |
struct rtproc *rtp; |
504 |
int i; |
505 |
int maxbytes; |
506 |
/* make sure we have something to do */ |
507 |
if (!nmods) |
508 |
error(USER, "No modifiers specified"); |
509 |
/* assign ray variables */ |
510 |
scompile("Dx=$1;Dy=$2;Dz=$3;", NULL, 0); |
511 |
scompile("Px=$4;Py=$5;Pz=$6;", NULL, 0); |
512 |
/* set up signal handling */ |
513 |
signal(SIGINT, quit); |
514 |
#ifdef SIGHUP |
515 |
signal(SIGHUP, quit); |
516 |
#endif |
517 |
#ifdef SIGTERM |
518 |
signal(SIGTERM, quit); |
519 |
#endif |
520 |
#ifdef SIGPIPE |
521 |
signal(SIGPIPE, quit); |
522 |
#endif |
523 |
rtp = &rt0; /* start rtrace process(es) */ |
524 |
for (i = 0; i++ < np; ) { |
525 |
errno = 0; |
526 |
maxbytes = open_process(&rtp->pd, rtargv); |
527 |
if (maxbytes == 0) { |
528 |
eputs(rtargv[0]); |
529 |
eputs(": command not found\n"); |
530 |
exit(1); |
531 |
} |
532 |
if (maxbytes < 0) |
533 |
error(SYSTEM, "cannot start rtrace process"); |
534 |
if (maxbytes > treebufsiz) |
535 |
treebufsiz = maxbytes; |
536 |
rtp->raynum = 0; |
537 |
rtp->bsiz = 0; |
538 |
rtp->buf = NULL; |
539 |
rtp->nbr = 0; |
540 |
if (i == np) /* last process? */ |
541 |
break; |
542 |
if (i == 1) |
543 |
sleep(2); /* wait for persist file */ |
544 |
rtp->next = (struct rtproc *)malloc(sizeof(struct rtproc)); |
545 |
if (rtp->next == NULL) |
546 |
error(SYSTEM, "out of memory in init"); |
547 |
rtp = rtp->next; |
548 |
} |
549 |
rtp->next = NULL; /* terminate list */ |
550 |
if (yres > 0) { |
551 |
if (xres > 0) |
552 |
raysleft = (unsigned long)xres*yres; |
553 |
else |
554 |
raysleft = yres; |
555 |
} else |
556 |
raysleft = 0; |
557 |
waitflush = xres; |
558 |
if (!recover) |
559 |
return; |
560 |
/* recover previous values */ |
561 |
if (accumulate) |
562 |
reload_output(); |
563 |
else |
564 |
recover_output(stdin); |
565 |
} |
566 |
|
567 |
/* grow modifier to accommodate more bins */ |
568 |
MODCONT * |
569 |
growmodifier(MODCONT *mp, int nb) |
570 |
{ |
571 |
if (nb <= mp->nbins) |
572 |
return mp; |
573 |
mp = (MODCONT *)realloc(mp, sizeof(MODCONT) + sizeof(DCOLOR)*(nb-1)); |
574 |
if (mp == NULL) |
575 |
error(SYSTEM, "out of memory in growmodifier"); |
576 |
memset(mp->cbin+mp->nbins, 0, sizeof(DCOLOR)*(nb-mp->nbins)); |
577 |
mp->nbins = nb; |
578 |
return mp; |
579 |
} |
580 |
|
581 |
/* add modifier to our list to track */ |
582 |
MODCONT * |
583 |
addmodifier(char *modn, char *outf, char *binv, int bincnt) |
584 |
{ |
585 |
LUENT *lep = lu_find(&modconttab, modn); |
586 |
MODCONT *mp; |
587 |
int i; |
588 |
|
589 |
if (lep->data != NULL) { |
590 |
sprintf(errmsg, "duplicate modifier '%s'", modn); |
591 |
error(USER, errmsg); |
592 |
} |
593 |
if (nmods >= MAXMODLIST) |
594 |
error(USER, "too many modifiers"); |
595 |
modname[nmods++] = modn; /* XXX assumes static string */ |
596 |
lep->key = modn; /* XXX assumes static string */ |
597 |
mp = (MODCONT *)malloc(sizeof(MODCONT)); |
598 |
if (mp == NULL) |
599 |
error(SYSTEM, "out of memory in addmodifier"); |
600 |
mp->outspec = outf; /* XXX assumes static string */ |
601 |
mp->modname = modn; /* XXX assumes static string */ |
602 |
if (binv != NULL) |
603 |
mp->binv = eparse(binv); |
604 |
else |
605 |
mp->binv = eparse("0"); |
606 |
mp->nbins = 1; |
607 |
setcolor(mp->cbin[0], 0., 0., 0.); |
608 |
if (mp->binv->type == NUM) /* assume one bin if constant */ |
609 |
bincnt = 1; |
610 |
else if (bincnt > 1) |
611 |
mp = growmodifier(mp, bincnt); |
612 |
lep->data = (char *)mp; |
613 |
/* allocate output streams */ |
614 |
for (i = bincnt; i-- > 0; ) |
615 |
getostream(mp->outspec, mp->modname, i, 1); |
616 |
return mp; |
617 |
} |
618 |
|
619 |
/* add modifiers from a file list */ |
620 |
void |
621 |
addmodfile(char *fname, char *outf, char *binv, int bincnt) |
622 |
{ |
623 |
char *mname[MAXMODLIST]; |
624 |
int i; |
625 |
/* find the file & store strings */ |
626 |
if (wordfile(mname, getpath(fname, getrlibpath(), R_OK)) < 0) { |
627 |
sprintf(errmsg, "cannot find modifier file '%s'", fname); |
628 |
error(SYSTEM, errmsg); |
629 |
} |
630 |
for (i = 0; mname[i]; i++) /* add each one */ |
631 |
addmodifier(mname[i], outf, binv, bincnt); |
632 |
} |
633 |
|
634 |
/* put string to stderr */ |
635 |
void |
636 |
eputs(char *s) |
637 |
{ |
638 |
static int midline = 0; |
639 |
|
640 |
if (!*s) return; |
641 |
if (!midline) { |
642 |
fputs(progname, stderr); |
643 |
fputs(": ", stderr); |
644 |
} |
645 |
fputs(s, stderr); |
646 |
midline = s[strlen(s)-1] != '\n'; |
647 |
} |
648 |
|
649 |
/* construct output file name and return flags whether modifier/bin present */ |
650 |
int |
651 |
ofname(char *oname, const char *ospec, const char *mname, int bn) |
652 |
{ |
653 |
const char *mnp = NULL; |
654 |
const char *bnp = NULL; |
655 |
const char *cp; |
656 |
|
657 |
if (ospec == NULL) |
658 |
return -1; |
659 |
for (cp = ospec; *cp; cp++) /* check format position(s) */ |
660 |
if (*cp == '%') { |
661 |
do |
662 |
++cp; |
663 |
while (isdigit(*cp)); |
664 |
switch (*cp) { |
665 |
case '%': |
666 |
break; |
667 |
case 's': |
668 |
if (mnp != NULL) |
669 |
return -1; |
670 |
mnp = cp; |
671 |
break; |
672 |
case 'd': |
673 |
if (bnp != NULL) |
674 |
return -1; |
675 |
bnp = cp; |
676 |
break; |
677 |
default: |
678 |
return -1; |
679 |
} |
680 |
} |
681 |
if (mnp != NULL) { /* create file name */ |
682 |
if (bnp != NULL) { |
683 |
if (bnp > mnp) |
684 |
sprintf(oname, ospec, mname, bn); |
685 |
else |
686 |
sprintf(oname, ospec, bn, mname); |
687 |
return OF_MODIFIER|OF_BIN; |
688 |
} |
689 |
sprintf(oname, ospec, mname); |
690 |
return OF_MODIFIER; |
691 |
} |
692 |
if (bnp != NULL) { |
693 |
sprintf(oname, ospec, bn); |
694 |
return OF_BIN; |
695 |
} |
696 |
strcpy(oname, ospec); |
697 |
return 0; |
698 |
} |
699 |
|
700 |
/* write header to the given output stream */ |
701 |
void |
702 |
printheader(FILE *fout, const char *info) |
703 |
{ |
704 |
extern char VersionID[]; |
705 |
FILE *fin = fopen(octree, "r"); |
706 |
|
707 |
if (fin == NULL) |
708 |
quit(1); |
709 |
checkheader(fin, "ignore", fout); /* copy octree header */ |
710 |
fclose(fin); |
711 |
printargs(gargc-1, gargv, fout); /* add our command */ |
712 |
fprintf(fout, "SOFTWARE= %s\n", VersionID); |
713 |
fputnow(fout); |
714 |
if (info != NULL) /* add extra info if given */ |
715 |
fputs(info, fout); |
716 |
switch (outfmt) { /* add output format */ |
717 |
case 'a': |
718 |
fputformat("ascii", fout); |
719 |
break; |
720 |
case 'f': |
721 |
fputformat("float", fout); |
722 |
break; |
723 |
case 'd': |
724 |
fputformat("double", fout); |
725 |
break; |
726 |
case 'c': |
727 |
fputformat(COLRFMT, fout); |
728 |
break; |
729 |
} |
730 |
fputc('\n', fout); |
731 |
} |
732 |
|
733 |
/* write resolution string to given output stream */ |
734 |
void |
735 |
printresolu(FILE *fout, int xr, int yr) |
736 |
{ |
737 |
if ((xr > 0) & (yr > 0)) /* resolution string */ |
738 |
fprtresolu(xr, yr, fout); |
739 |
if (xres > 0) /* global flush flag */ |
740 |
fflush(fout); |
741 |
} |
742 |
|
743 |
/* Get output stream pointer (open and write header if new and noopen==0) */ |
744 |
STREAMOUT * |
745 |
getostream(const char *ospec, const char *mname, int bn, int noopen) |
746 |
{ |
747 |
static const DCOLOR nocontrib = BLKCOLOR; |
748 |
static STREAMOUT stdos; |
749 |
int ofl; |
750 |
char oname[1024]; |
751 |
LUENT *lep; |
752 |
STREAMOUT *sop; |
753 |
|
754 |
if (ospec == NULL) { /* use stdout? */ |
755 |
if (!noopen && !using_stdout) { |
756 |
if (outfmt != 'a') |
757 |
SET_FILE_BINARY(stdout); |
758 |
if (header) |
759 |
printheader(stdout, NULL); |
760 |
printresolu(stdout, xres, yres); |
761 |
stdos.xr = xres; stdos.yr = yres; |
762 |
using_stdout = 1; |
763 |
} |
764 |
stdos.ofp = stdout; |
765 |
stdos.reclen += noopen; |
766 |
return &stdos; |
767 |
} |
768 |
ofl = ofname(oname, ospec, mname, bn); /* get output name */ |
769 |
if (ofl < 0) { |
770 |
sprintf(errmsg, "bad output format '%s'", ospec); |
771 |
error(USER, errmsg); |
772 |
} |
773 |
lep = lu_find(&ofiletab, oname); /* look it up */ |
774 |
if (lep->key == NULL) /* new entry */ |
775 |
lep->key = strcpy((char *)malloc(strlen(oname)+1), oname); |
776 |
sop = (STREAMOUT *)lep->data; |
777 |
if (sop == NULL) { /* allocate stream */ |
778 |
sop = (STREAMOUT *)malloc(sizeof(STREAMOUT)); |
779 |
if (sop == NULL) |
780 |
error(SYSTEM, "out of memory in getostream"); |
781 |
sop->outpipe = oname[0] == '!'; |
782 |
sop->reclen = 0; |
783 |
sop->ofp = NULL; /* open iff noopen==0 */ |
784 |
sop->xr = xres; sop->yr = yres; |
785 |
lep->data = (char *)sop; |
786 |
if (!sop->outpipe & !force_open & !recover && |
787 |
access(oname, F_OK) == 0) { |
788 |
errno = EEXIST; /* file exists */ |
789 |
goto openerr; |
790 |
} |
791 |
} |
792 |
if (!noopen && sop->ofp == NULL) { /* open output stream */ |
793 |
long i; |
794 |
if (oname[0] == '!') /* output to command */ |
795 |
sop->ofp = popen(oname+1, "w"); |
796 |
else /* else open file */ |
797 |
sop->ofp = fopen(oname, "w"); |
798 |
if (sop->ofp == NULL) |
799 |
goto openerr; |
800 |
if (outfmt != 'a') |
801 |
SET_FILE_BINARY(sop->ofp); |
802 |
if (header) { |
803 |
char info[512]; |
804 |
char *cp = info; |
805 |
if (ofl & OF_MODIFIER || sop->reclen == 1) { |
806 |
sprintf(cp, "MODIFIER=%s\n", mname); |
807 |
while (*cp) ++cp; |
808 |
} |
809 |
if (ofl & OF_BIN) { |
810 |
sprintf(cp, "BIN=%d\n", bn); |
811 |
while (*cp) ++cp; |
812 |
} |
813 |
*cp = '\0'; |
814 |
printheader(sop->ofp, info); |
815 |
} |
816 |
if (!accumulate) { /* global res. for -c- */ |
817 |
sop->xr = xres; sop->yr = yres; |
818 |
} |
819 |
printresolu(sop->ofp, sop->xr, sop->yr); |
820 |
/* play catch-up */ |
821 |
for (i = accumulate ? 0 : lastdone; i--; ) { |
822 |
int j = sop->reclen; |
823 |
if (j <= 0) j = 1; |
824 |
while (j--) |
825 |
put_contrib(nocontrib, sop->ofp); |
826 |
if (outfmt == 'a') |
827 |
putc('\n', sop->ofp); |
828 |
} |
829 |
if (xres > 0) |
830 |
fflush(sop->ofp); |
831 |
} |
832 |
sop->reclen += noopen; /* add to length if noopen */ |
833 |
return sop; /* return output stream */ |
834 |
openerr: |
835 |
sprintf(errmsg, "cannot open '%s' for writing", oname); |
836 |
error(SYSTEM, errmsg); |
837 |
return NULL; /* pro forma return */ |
838 |
} |
839 |
|
840 |
/* read input ray into buffer */ |
841 |
int |
842 |
getinp(char *buf, FILE *fp) |
843 |
{ |
844 |
double dv[3], *dvp; |
845 |
float *fvp; |
846 |
char *cp; |
847 |
int i; |
848 |
|
849 |
switch (inpfmt) { |
850 |
case 'a': |
851 |
cp = buf; /* make sure we get 6 floats */ |
852 |
for (i = 0; i < 6; i++) { |
853 |
if (fgetword(cp, buf+127-cp, fp) == NULL) |
854 |
return -1; |
855 |
if (i >= 3) |
856 |
dv[i-3] = atof(cp); |
857 |
if ((cp = fskip(cp)) == NULL || *cp) |
858 |
return -1; |
859 |
*cp++ = ' '; |
860 |
} |
861 |
getc(fp); /* get/put eol */ |
862 |
*cp-- = '\0'; *cp = '\n'; |
863 |
if (DOT(dv,dv) <= FTINY*FTINY) |
864 |
return 0; /* dummy ray */ |
865 |
return strlen(buf); |
866 |
case 'f': |
867 |
if (fread(buf, sizeof(float), 6, fp) < 6) |
868 |
return -1; |
869 |
fvp = (float *)buf + 3; |
870 |
if (DOT(fvp,fvp) <= FTINY*FTINY) |
871 |
return 0; /* dummy ray */ |
872 |
return sizeof(float)*6; |
873 |
case 'd': |
874 |
if (fread(buf, sizeof(double), 6, fp) < 6) |
875 |
return -1; |
876 |
dvp = (double *)buf + 3; |
877 |
if (DOT(dvp,dvp) <= FTINY*FTINY) |
878 |
return 0; /* dummy ray */ |
879 |
return sizeof(double)*6; |
880 |
} |
881 |
error(INTERNAL, "botched input format"); |
882 |
return -1; /* pro forma return */ |
883 |
} |
884 |
|
885 |
static float rparams[9]; /* traced ray parameters */ |
886 |
|
887 |
/* return channel (ray) value */ |
888 |
double |
889 |
chanvalue(int n) |
890 |
{ |
891 |
if (--n < 0 || n >= 6) |
892 |
error(USER, "illegal channel number ($N)"); |
893 |
return rparams[n+3]; |
894 |
} |
895 |
|
896 |
/* add current ray contribution to the appropriate modifier bin */ |
897 |
void |
898 |
add_contrib(const char *modn) |
899 |
{ |
900 |
LUENT *le = lu_find(&modconttab, modn); |
901 |
MODCONT *mp = (MODCONT *)le->data; |
902 |
int bn; |
903 |
|
904 |
if (mp == NULL) { |
905 |
sprintf(errmsg, "unexpected modifier '%s' from rtrace", modn); |
906 |
error(USER, errmsg); |
907 |
} |
908 |
eclock++; /* get bin number */ |
909 |
bn = (int)(evalue(mp->binv) + .5); |
910 |
if (bn <= 0) |
911 |
bn = 0; |
912 |
else if (bn >= mp->nbins) /* new bin */ |
913 |
le->data = (char *)(mp = growmodifier(mp, bn+1)); |
914 |
addcolor(mp->cbin[bn], rparams); |
915 |
} |
916 |
|
917 |
/* output newline to ASCII file and/or flush as requested */ |
918 |
static int |
919 |
puteol(const LUENT *e, void *p) |
920 |
{ |
921 |
STREAMOUT *sop = (STREAMOUT *)e->data; |
922 |
|
923 |
if (outfmt == 'a') |
924 |
putc('\n', sop->ofp); |
925 |
if (!waitflush) |
926 |
fflush(sop->ofp); |
927 |
if (ferror(sop->ofp)) { |
928 |
sprintf(errmsg, "write error on file '%s'", e->key); |
929 |
error(SYSTEM, errmsg); |
930 |
} |
931 |
return 0; |
932 |
} |
933 |
|
934 |
/* put out ray contribution to file */ |
935 |
void |
936 |
put_contrib(const DCOLOR cnt, FILE *fout) |
937 |
{ |
938 |
float fv[3]; |
939 |
COLR cv; |
940 |
|
941 |
switch (outfmt) { |
942 |
case 'a': |
943 |
fprintf(fout, "%.6e\t%.6e\t%.6e\t", cnt[0], cnt[1], cnt[2]); |
944 |
break; |
945 |
case 'f': |
946 |
copycolor(fv, cnt); |
947 |
fwrite(fv, sizeof(float), 3, fout); |
948 |
break; |
949 |
case 'd': |
950 |
fwrite(cnt, sizeof(double), 3, fout); |
951 |
break; |
952 |
case 'c': |
953 |
setcolr(cv, cnt[0], cnt[1], cnt[2]); |
954 |
fwrite(cv, sizeof(cv), 1, fout); |
955 |
break; |
956 |
default: |
957 |
error(INTERNAL, "botched output format"); |
958 |
} |
959 |
} |
960 |
|
961 |
/* output ray tallies and clear for next accumulation */ |
962 |
void |
963 |
done_contrib(void) |
964 |
{ |
965 |
int i, j; |
966 |
MODCONT *mp; |
967 |
STREAMOUT *sop; |
968 |
/* output modifiers in order */ |
969 |
for (i = 0; i < nmods; i++) { |
970 |
mp = (MODCONT *)lu_find(&modconttab,modname[i])->data; |
971 |
sop = getostream(mp->outspec, mp->modname, 0,0); |
972 |
put_contrib(mp->cbin[0], sop->ofp); |
973 |
if (mp->nbins > 3 && /* minor optimization */ |
974 |
sop == getostream(mp->outspec, mp->modname, 1,0)) |
975 |
for (j = 1; j < mp->nbins; j++) |
976 |
put_contrib(mp->cbin[j], sop->ofp); |
977 |
else |
978 |
for (j = 1; j < mp->nbins; j++) |
979 |
put_contrib(mp->cbin[j], |
980 |
getostream(mp->outspec,mp->modname,j,0)->ofp); |
981 |
/* clear for next time */ |
982 |
memset(mp->cbin, 0, sizeof(DCOLOR)*mp->nbins); |
983 |
} |
984 |
--waitflush; /* terminate records */ |
985 |
lu_doall(&ofiletab, puteol, NULL); |
986 |
if (using_stdout & (outfmt == 'a')) |
987 |
putc('\n', stdout); |
988 |
if (!waitflush) { |
989 |
waitflush = xres; |
990 |
if (using_stdout) |
991 |
fflush(stdout); |
992 |
} |
993 |
} |
994 |
|
995 |
/* queue completed ray tree produced by rtrace process */ |
996 |
void |
997 |
queue_raytree(struct rtproc *rtp) |
998 |
{ |
999 |
struct rtproc *rtu, *rtl = NULL; |
1000 |
/* insert following ray order */ |
1001 |
for (rtu = rt_unproc; rtu != NULL; rtu = (rtl=rtu)->next) |
1002 |
if (rtp->raynum < rtu->raynum) |
1003 |
break; |
1004 |
rtu = (struct rtproc *)malloc(sizeof(struct rtproc)); |
1005 |
if (rtu == NULL) |
1006 |
error(SYSTEM, "out of memory in queue_raytree"); |
1007 |
*rtu = *rtp; |
1008 |
if (rtl == NULL) { |
1009 |
rtu->next = rt_unproc; |
1010 |
rt_unproc = rtu; |
1011 |
} else { |
1012 |
rtu->next = rtl->next; |
1013 |
rtl->next = rtu; |
1014 |
} |
1015 |
rtp->raynum = 0; /* clear path for next ray tree */ |
1016 |
rtp->bsiz = 0; |
1017 |
rtp->buf = NULL; |
1018 |
rtp->nbr = 0; |
1019 |
} |
1020 |
|
1021 |
/* process completed ray trees from our queue */ |
1022 |
void |
1023 |
process_queue(void) |
1024 |
{ |
1025 |
char modname[128]; |
1026 |
/* ray-ordered queue */ |
1027 |
while (rt_unproc != NULL && rt_unproc->raynum == lastdone+1) { |
1028 |
struct rtproc *rtp = rt_unproc; |
1029 |
int n = rtp->nbr; |
1030 |
const char *cp = rtp->buf; |
1031 |
while (n > 0) { /* process rays */ |
1032 |
register char *mnp = modname; |
1033 |
/* skip leading tabs */ |
1034 |
while (n > 0 && *cp == '\t') { |
1035 |
cp++; n--; |
1036 |
} |
1037 |
if (!n || !(isalpha(*cp) | (*cp == '_'))) |
1038 |
error(USER, "bad modifier name from rtrace"); |
1039 |
/* get modifier name */ |
1040 |
while (n > 1 && *cp != '\t') { |
1041 |
if (mnp - modname >= sizeof(modname)-2) |
1042 |
error(INTERNAL, "modifier name too long"); |
1043 |
*mnp++ = *cp++; n--; |
1044 |
} |
1045 |
*mnp = '\0'; |
1046 |
cp++; n--; /* eat following tab */ |
1047 |
if (n < (int)(sizeof(float)*9)) |
1048 |
error(USER, "incomplete ray value from rtrace"); |
1049 |
/* add ray contribution */ |
1050 |
memcpy(rparams, cp, sizeof(float)*9); |
1051 |
cp += sizeof(float)*9; n -= sizeof(float)*9; |
1052 |
add_contrib(modname); |
1053 |
} |
1054 |
if (!accumulate) |
1055 |
done_contrib(); /* sum up contributions & output */ |
1056 |
lastdone = rtp->raynum; |
1057 |
if (rtp->buf != NULL) /* free up buffer space */ |
1058 |
free(rtp->buf); |
1059 |
rt_unproc = rtp->next; |
1060 |
free(rtp); /* done with this ray tree */ |
1061 |
} |
1062 |
} |
1063 |
|
1064 |
/* wait for rtrace process to finish with ray tree */ |
1065 |
struct rtproc * |
1066 |
wait_rproc(void) |
1067 |
{ |
1068 |
struct rtproc *rtfree = NULL; |
1069 |
fd_set readset, errset; |
1070 |
int nr; |
1071 |
struct rtproc *rt; |
1072 |
int n; |
1073 |
|
1074 |
do { |
1075 |
nr = 0; /* prepare select call */ |
1076 |
FD_ZERO(&readset); FD_ZERO(&errset); n = 0; |
1077 |
for (rt = &rt0; rt != NULL; rt = rt->next) { |
1078 |
if (rt->raynum) { |
1079 |
FD_SET(rt->pd.r, &readset); |
1080 |
++nr; |
1081 |
} |
1082 |
FD_SET(rt->pd.r, &errset); |
1083 |
if (rt->pd.r >= n) |
1084 |
n = rt->pd.r + 1; |
1085 |
} |
1086 |
if (!nr) /* no rays pending */ |
1087 |
break; |
1088 |
if (nr > 1) { /* call select for multiple proc's */ |
1089 |
errno = 0; |
1090 |
if (select(n, &readset, NULL, &errset, NULL) < 0) |
1091 |
error(SYSTEM, "select call error in wait_rproc()"); |
1092 |
} else |
1093 |
FD_ZERO(&errset); |
1094 |
nr = 0; |
1095 |
for (rt = &rt0; rt != NULL; rt = rt->next) { |
1096 |
if (!FD_ISSET(rt->pd.r, &readset) && |
1097 |
!FD_ISSET(rt->pd.r, &errset)) |
1098 |
continue; |
1099 |
if (rt->buf == NULL) { |
1100 |
rt->bsiz = treebufsiz; |
1101 |
rt->buf = (char *)malloc(treebufsiz); |
1102 |
} else if (rt->nbr + BUFSIZ > rt->bsiz) { |
1103 |
if (rt->bsiz + BUFSIZ <= treebufsiz) |
1104 |
rt->bsiz = treebufsiz; |
1105 |
else |
1106 |
treebufsiz = rt->bsiz += BUFSIZ; |
1107 |
rt->buf = (char *)realloc(rt->buf, rt->bsiz); |
1108 |
} |
1109 |
if (rt->buf == NULL) |
1110 |
error(SYSTEM, "out of memory in wait_rproc"); |
1111 |
nr = read(rt->pd.r, rt->buf+rt->nbr, rt->bsiz-rt->nbr); |
1112 |
if (nr <= 0) |
1113 |
error(USER, "rtrace process died"); |
1114 |
rt->nbr += nr; /* advance & check */ |
1115 |
if (rt->nbr >= 4 && !memcmp(rt->buf+rt->nbr-4, |
1116 |
"~\t~\t", 4)) { |
1117 |
rt->nbr -= 4; /* elide terminator */ |
1118 |
queue_raytree(rt); |
1119 |
rtfree = rt; /* ready for next ray */ |
1120 |
} |
1121 |
} |
1122 |
} while ((rtfree == NULL) & (nr > 0)); /* repeat until ready or out */ |
1123 |
return rtfree; |
1124 |
} |
1125 |
|
1126 |
/* return next available rtrace process */ |
1127 |
struct rtproc * |
1128 |
get_rproc(void) |
1129 |
{ |
1130 |
struct rtproc *rtp; |
1131 |
/* check for idle rtrace */ |
1132 |
for (rtp = &rt0; rtp != NULL; rtp = rtp->next) |
1133 |
if (!rtp->raynum) |
1134 |
return rtp; |
1135 |
return wait_rproc(); /* need to wait for one */ |
1136 |
} |
1137 |
|
1138 |
/* trace ray contributions (main loop) */ |
1139 |
void |
1140 |
trace_contribs(FILE *fin) |
1141 |
{ |
1142 |
char inpbuf[128]; |
1143 |
int iblen; |
1144 |
struct rtproc *rtp; |
1145 |
/* loop over input */ |
1146 |
while ((iblen = getinp(inpbuf, fin)) >= 0) { |
1147 |
if (!iblen || /* need reset? */ |
1148 |
queue_length() > 10*nrtprocs() || |
1149 |
lastray+1 < lastray) { |
1150 |
while (wait_rproc() != NULL) |
1151 |
process_queue(); |
1152 |
if (lastray+1 < lastray) |
1153 |
lastdone = lastray = 0; |
1154 |
} |
1155 |
rtp = get_rproc(); /* get avail. rtrace process */ |
1156 |
rtp->raynum = ++lastray; /* assign ray */ |
1157 |
if (iblen) { /* trace ray if valid */ |
1158 |
writebuf(rtp->pd.w, inpbuf, iblen); |
1159 |
} else { /* else bypass dummy ray */ |
1160 |
queue_raytree(rtp); /* empty tree */ |
1161 |
if ((yres <= 0) | (waitflush > 1)) |
1162 |
waitflush = 1; /* flush after this */ |
1163 |
} |
1164 |
process_queue(); /* catch up with results */ |
1165 |
if (raysleft && !--raysleft) |
1166 |
break; /* preemptive EOI */ |
1167 |
} |
1168 |
while (wait_rproc() != NULL) /* process outstanding rays */ |
1169 |
process_queue(); |
1170 |
if (accumulate) |
1171 |
done_contrib(); /* output tallies */ |
1172 |
if (raysleft) |
1173 |
error(USER, "unexpected EOF on input"); |
1174 |
lu_done(&ofiletab); /* close output files */ |
1175 |
} |
1176 |
|
1177 |
/* get ray contribution from previous file */ |
1178 |
static int |
1179 |
get_contrib(DCOLOR cnt, FILE *finp) |
1180 |
{ |
1181 |
COLOR fv; |
1182 |
COLR cv; |
1183 |
|
1184 |
switch (outfmt) { |
1185 |
case 'a': |
1186 |
return(fscanf(finp,"%lf %lf %lf",&cnt[0],&cnt[1],&cnt[2]) == 3); |
1187 |
case 'f': |
1188 |
if (fread(fv, sizeof(fv[0]), 3, finp) != 3) |
1189 |
return(0); |
1190 |
copycolor(cnt, fv); |
1191 |
return(1); |
1192 |
case 'd': |
1193 |
return(fread(cnt, sizeof(cnt[0]), 3, finp) == 3); |
1194 |
case 'c': |
1195 |
if (fread(cv, sizeof(cv), 1, finp) != 1) |
1196 |
return(0); |
1197 |
colr_color(fv, cv); |
1198 |
copycolor(cnt, fv); |
1199 |
return(1); |
1200 |
default: |
1201 |
error(INTERNAL, "botched output format"); |
1202 |
} |
1203 |
return(0); /* pro forma return */ |
1204 |
} |
1205 |
|
1206 |
/* close output file opened for input */ |
1207 |
static int |
1208 |
myclose(const LUENT *e, void *p) |
1209 |
{ |
1210 |
STREAMOUT *sop = (STREAMOUT *)e->data; |
1211 |
|
1212 |
if (sop->ofp == NULL) |
1213 |
return; |
1214 |
fclose(sop->ofp); |
1215 |
sop->ofp = NULL; |
1216 |
} |
1217 |
|
1218 |
/* load previously accumulated values */ |
1219 |
void |
1220 |
reload_output(void) |
1221 |
{ |
1222 |
int i, j; |
1223 |
MODCONT *mp; |
1224 |
int ofl; |
1225 |
char oname[1024]; |
1226 |
char *fmode = "rb"; |
1227 |
char *outvfmt; |
1228 |
LUENT *ment, *oent; |
1229 |
int xr, yr; |
1230 |
STREAMOUT sout; |
1231 |
DCOLOR rgbv; |
1232 |
|
1233 |
switch (outfmt) { |
1234 |
case 'a': |
1235 |
outvfmt = "ascii"; |
1236 |
fmode = "r"; |
1237 |
break; |
1238 |
case 'f': |
1239 |
outvfmt = "float"; |
1240 |
break; |
1241 |
case 'd': |
1242 |
outvfmt = "double"; |
1243 |
break; |
1244 |
case 'c': |
1245 |
outvfmt = COLRFMT; |
1246 |
break; |
1247 |
default: |
1248 |
error(INTERNAL, "botched output format"); |
1249 |
return; |
1250 |
} |
1251 |
/* reload modifier values */ |
1252 |
for (i = 0; i < nmods; i++) { |
1253 |
ment = lu_find(&modconttab,modname[i]); |
1254 |
mp = (MODCONT *)ment->data; |
1255 |
if (mp->outspec == NULL) |
1256 |
error(USER, "cannot reload from stdout"); |
1257 |
if (mp->outspec[0] == '!') |
1258 |
error(USER, "cannot reload from command"); |
1259 |
for (j = 0; ; j++) { /* load each modifier bin */ |
1260 |
ofl = ofname(oname, mp->outspec, mp->modname, j); |
1261 |
if (ofl < 0) |
1262 |
error(USER, "bad output file specification"); |
1263 |
oent = lu_find(&ofiletab, oname); |
1264 |
if (oent->data != NULL) { |
1265 |
sout = *(STREAMOUT *)oent->data; |
1266 |
} else { |
1267 |
sout.reclen = 0; |
1268 |
sout.outpipe = 0; |
1269 |
sout.xr = xres; sout.yr = yres; |
1270 |
sout.ofp = NULL; |
1271 |
} |
1272 |
if (sout.ofp == NULL) { /* open output as input */ |
1273 |
sout.ofp = fopen(oname, fmode); |
1274 |
if (sout.ofp == NULL) { |
1275 |
if (j) |
1276 |
break; /* assume end of modifier */ |
1277 |
sprintf(errmsg, "missing reload file '%s'", |
1278 |
oname); |
1279 |
error(WARNING, errmsg); |
1280 |
break; |
1281 |
} |
1282 |
if (header && checkheader(sout.ofp, outvfmt, NULL) != 1) { |
1283 |
sprintf(errmsg, "format mismatch for '%s'", |
1284 |
oname); |
1285 |
error(USER, errmsg); |
1286 |
} |
1287 |
if ((sout.xr > 0) & (sout.yr > 0) && |
1288 |
(!fscnresolu(&xr, &yr, sout.ofp) || |
1289 |
(xr != sout.xr) | |
1290 |
(yr != sout.yr))) { |
1291 |
sprintf(errmsg, "resolution mismatch for '%s'", |
1292 |
oname); |
1293 |
error(USER, errmsg); |
1294 |
} |
1295 |
} |
1296 |
if (oent->key == NULL) /* new file entry */ |
1297 |
oent->key = strcpy((char *) |
1298 |
malloc(strlen(oname)+1), oname); |
1299 |
if (oent->data == NULL) |
1300 |
oent->data = (char *)malloc(sizeof(STREAMOUT)); |
1301 |
*(STREAMOUT *)oent->data = sout; |
1302 |
/* read in RGB value */ |
1303 |
if (!get_contrib(rgbv, sout.ofp)) { |
1304 |
if (!j) |
1305 |
break; /* ignore empty file */ |
1306 |
if (j < mp->nbins) { |
1307 |
sprintf(errmsg, "missing data in '%s'", |
1308 |
oname); |
1309 |
error(USER, errmsg); |
1310 |
} |
1311 |
break; |
1312 |
} |
1313 |
if (j >= mp->nbins) /* grow modifier size */ |
1314 |
ment->data = (char *)(mp = growmodifier(mp, j+1)); |
1315 |
copycolor(mp->cbin[j], rgbv); |
1316 |
} |
1317 |
} |
1318 |
lu_doall(&ofiletab, myclose, NULL); /* close all files */ |
1319 |
} |
1320 |
|
1321 |
/* seek on the given output file */ |
1322 |
static int |
1323 |
myseeko(const LUENT *e, void *p) |
1324 |
{ |
1325 |
STREAMOUT *sop = (STREAMOUT *)e->data; |
1326 |
off_t nbytes = *(off_t *)p; |
1327 |
|
1328 |
if (sop->reclen > 1) |
1329 |
nbytes = nbytes * sop->reclen; |
1330 |
if (fseeko(sop->ofp, nbytes, SEEK_CUR) < 0) { |
1331 |
sprintf(errmsg, "seek error on file '%s'", e->key); |
1332 |
error(SYSTEM, errmsg); |
1333 |
} |
1334 |
return 0; |
1335 |
} |
1336 |
|
1337 |
/* recover output if possible */ |
1338 |
void |
1339 |
recover_output(FILE *fin) |
1340 |
{ |
1341 |
off_t lastout = -1; |
1342 |
int outvsiz, recsiz; |
1343 |
char *outvfmt; |
1344 |
int i, j; |
1345 |
MODCONT *mp; |
1346 |
int ofl; |
1347 |
char oname[1024]; |
1348 |
LUENT *ment, *oent; |
1349 |
STREAMOUT sout; |
1350 |
off_t nvals; |
1351 |
int xr, yr; |
1352 |
|
1353 |
switch (outfmt) { |
1354 |
case 'a': |
1355 |
error(USER, "cannot recover ASCII output"); |
1356 |
return; |
1357 |
case 'f': |
1358 |
outvsiz = sizeof(float)*3; |
1359 |
outvfmt = "float"; |
1360 |
break; |
1361 |
case 'd': |
1362 |
outvsiz = sizeof(double)*3; |
1363 |
outvfmt = "double"; |
1364 |
break; |
1365 |
case 'c': |
1366 |
outvsiz = sizeof(COLR); |
1367 |
outvfmt = COLRFMT; |
1368 |
break; |
1369 |
default: |
1370 |
error(INTERNAL, "botched output format"); |
1371 |
return; |
1372 |
} |
1373 |
/* check modifier outputs */ |
1374 |
for (i = 0; i < nmods; i++) { |
1375 |
ment = lu_find(&modconttab,modname[i]); |
1376 |
mp = (MODCONT *)ment->data; |
1377 |
if (mp->outspec == NULL) |
1378 |
error(USER, "cannot recover from stdout"); |
1379 |
if (mp->outspec[0] == '!') |
1380 |
error(USER, "cannot recover from command"); |
1381 |
for (j = 0; ; j++) { /* check each bin's file */ |
1382 |
ofl = ofname(oname, mp->outspec, mp->modname, j); |
1383 |
if (ofl < 0) |
1384 |
error(USER, "bad output file specification"); |
1385 |
oent = lu_find(&ofiletab, oname); |
1386 |
if (oent->data != NULL) { |
1387 |
sout = *(STREAMOUT *)oent->data; |
1388 |
} else { |
1389 |
sout.reclen = 0; |
1390 |
sout.outpipe = 0; |
1391 |
sout.xr = xres; sout.yr = yres; |
1392 |
sout.ofp = NULL; |
1393 |
} |
1394 |
if (sout.ofp != NULL) { /* already open? */ |
1395 |
if (ofl & OF_BIN) |
1396 |
continue; |
1397 |
break; |
1398 |
} |
1399 |
/* open output */ |
1400 |
sout.ofp = fopen(oname, "rb+"); |
1401 |
if (sout.ofp == NULL) { |
1402 |
if (j) |
1403 |
break; /* assume end of modifier */ |
1404 |
sprintf(errmsg, "missing recover file '%s'", |
1405 |
oname); |
1406 |
error(WARNING, errmsg); |
1407 |
break; |
1408 |
} |
1409 |
nvals = lseek(fileno(sout.ofp), 0, SEEK_END); |
1410 |
if (nvals <= 0) { |
1411 |
lastout = 0; /* empty output, quit here */ |
1412 |
fclose(sout.ofp); |
1413 |
break; |
1414 |
} |
1415 |
if (!sout.reclen) { |
1416 |
if (!(ofl & OF_BIN)) { |
1417 |
sprintf(errmsg, |
1418 |
"need -bn to recover file '%s'", |
1419 |
oname); |
1420 |
error(USER, errmsg); |
1421 |
} |
1422 |
recsiz = outvsiz; |
1423 |
} else |
1424 |
recsiz = outvsiz * sout.reclen; |
1425 |
|
1426 |
lseek(fileno(sout.ofp), 0, SEEK_SET); |
1427 |
if (header && checkheader(sout.ofp, outvfmt, NULL) != 1) { |
1428 |
sprintf(errmsg, "format mismatch for '%s'", |
1429 |
oname); |
1430 |
error(USER, errmsg); |
1431 |
} |
1432 |
if ((xres > 0) & (yres > 0) && |
1433 |
(!fscnresolu(&xr, &yr, sout.ofp) || |
1434 |
(xr != xres) | |
1435 |
(yr != yres))) { |
1436 |
sprintf(errmsg, "resolution mismatch for '%s'", |
1437 |
oname); |
1438 |
error(USER, errmsg); |
1439 |
} |
1440 |
nvals = (nvals - (off_t)ftell(sout.ofp)) / recsiz; |
1441 |
if ((lastout < 0) | (nvals < lastout)) |
1442 |
lastout = nvals; |
1443 |
if (oent->key == NULL) /* new entry */ |
1444 |
oent->key = strcpy((char *) |
1445 |
malloc(strlen(oname)+1), oname); |
1446 |
if (oent->data == NULL) |
1447 |
oent->data = (char *)malloc(sizeof(STREAMOUT)); |
1448 |
*(STREAMOUT *)oent->data = sout; |
1449 |
if (!(ofl & OF_BIN)) |
1450 |
break; /* no bin separation */ |
1451 |
} |
1452 |
if (!lastout) { /* empty output */ |
1453 |
error(WARNING, "no previous data to recover"); |
1454 |
lu_done(&ofiletab); /* reclose all outputs */ |
1455 |
return; |
1456 |
} |
1457 |
if (j > mp->nbins) /* reallocate modifier bins */ |
1458 |
ment->data = (char *)(mp = growmodifier(mp, j)); |
1459 |
} |
1460 |
if (lastout < 0) { |
1461 |
error(WARNING, "no output files to recover"); |
1462 |
return; |
1463 |
} |
1464 |
if (raysleft && lastout >= raysleft) { |
1465 |
error(WARNING, "output appears to be complete"); |
1466 |
/* XXX should read & discard input? */ |
1467 |
quit(0); |
1468 |
} |
1469 |
/* seek on all files */ |
1470 |
nvals = lastout * outvsiz; |
1471 |
lu_doall(&ofiletab, myseeko, &nvals); |
1472 |
/* skip repeated input */ |
1473 |
for (nvals = 0; nvals < lastout; nvals++) |
1474 |
if (getinp(oname, fin) < 0) |
1475 |
error(USER, "unexpected EOF on input"); |
1476 |
lastray = lastdone = (unsigned long)lastout; |
1477 |
if (raysleft) |
1478 |
raysleft -= lastray; |
1479 |
} |