| 1 |
#ifndef lint |
| 2 |
static const char RCSid[] = "$Id: rtcontrib.c,v 1.45 2007/11/17 01:13:51 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 |
printresolu(sop->ofp, sop->xr, sop->yr); |
| 817 |
/* play catch-up */ |
| 818 |
for (i = accumulate ? 0 : lastdone; i--; ) { |
| 819 |
int j = sop->reclen; |
| 820 |
if (j <= 0) j = 1; |
| 821 |
while (j--) |
| 822 |
put_contrib(nocontrib, sop->ofp); |
| 823 |
if (outfmt == 'a') |
| 824 |
putc('\n', sop->ofp); |
| 825 |
} |
| 826 |
if (xres > 0) |
| 827 |
fflush(sop->ofp); |
| 828 |
} |
| 829 |
sop->reclen += noopen; /* add to length if noopen */ |
| 830 |
return sop; /* return output stream */ |
| 831 |
openerr: |
| 832 |
sprintf(errmsg, "cannot open '%s' for writing", oname); |
| 833 |
error(SYSTEM, errmsg); |
| 834 |
return NULL; /* pro forma return */ |
| 835 |
} |
| 836 |
|
| 837 |
/* read input ray into buffer */ |
| 838 |
int |
| 839 |
getinp(char *buf, FILE *fp) |
| 840 |
{ |
| 841 |
double dv[3], *dvp; |
| 842 |
float *fvp; |
| 843 |
char *cp; |
| 844 |
int i; |
| 845 |
|
| 846 |
switch (inpfmt) { |
| 847 |
case 'a': |
| 848 |
cp = buf; /* make sure we get 6 floats */ |
| 849 |
for (i = 0; i < 6; i++) { |
| 850 |
if (fgetword(cp, buf+127-cp, fp) == NULL) |
| 851 |
return -1; |
| 852 |
if (i >= 3) |
| 853 |
dv[i-3] = atof(cp); |
| 854 |
if ((cp = fskip(cp)) == NULL || *cp) |
| 855 |
return -1; |
| 856 |
*cp++ = ' '; |
| 857 |
} |
| 858 |
getc(fp); /* get/put eol */ |
| 859 |
*cp-- = '\0'; *cp = '\n'; |
| 860 |
if (DOT(dv,dv) <= FTINY*FTINY) |
| 861 |
return 0; /* dummy ray */ |
| 862 |
return strlen(buf); |
| 863 |
case 'f': |
| 864 |
if (fread(buf, sizeof(float), 6, fp) < 6) |
| 865 |
return -1; |
| 866 |
fvp = (float *)buf + 3; |
| 867 |
if (DOT(fvp,fvp) <= FTINY*FTINY) |
| 868 |
return 0; /* dummy ray */ |
| 869 |
return sizeof(float)*6; |
| 870 |
case 'd': |
| 871 |
if (fread(buf, sizeof(double), 6, fp) < 6) |
| 872 |
return -1; |
| 873 |
dvp = (double *)buf + 3; |
| 874 |
if (DOT(dvp,dvp) <= FTINY*FTINY) |
| 875 |
return 0; /* dummy ray */ |
| 876 |
return sizeof(double)*6; |
| 877 |
} |
| 878 |
error(INTERNAL, "botched input format"); |
| 879 |
return -1; /* pro forma return */ |
| 880 |
} |
| 881 |
|
| 882 |
static float rparams[9]; /* traced ray parameters */ |
| 883 |
|
| 884 |
/* return channel (ray) value */ |
| 885 |
double |
| 886 |
chanvalue(int n) |
| 887 |
{ |
| 888 |
if (--n < 0 || n >= 6) |
| 889 |
error(USER, "illegal channel number ($N)"); |
| 890 |
return rparams[n+3]; |
| 891 |
} |
| 892 |
|
| 893 |
/* add current ray contribution to the appropriate modifier bin */ |
| 894 |
void |
| 895 |
add_contrib(const char *modn) |
| 896 |
{ |
| 897 |
LUENT *le = lu_find(&modconttab, modn); |
| 898 |
MODCONT *mp = (MODCONT *)le->data; |
| 899 |
int bn; |
| 900 |
|
| 901 |
if (mp == NULL) { |
| 902 |
sprintf(errmsg, "unexpected modifier '%s' from rtrace", modn); |
| 903 |
error(USER, errmsg); |
| 904 |
} |
| 905 |
eclock++; /* get bin number */ |
| 906 |
bn = (int)(evalue(mp->binv) + .5); |
| 907 |
if (bn <= 0) |
| 908 |
bn = 0; |
| 909 |
else if (bn >= mp->nbins) /* new bin */ |
| 910 |
le->data = (char *)(mp = growmodifier(mp, bn+1)); |
| 911 |
addcolor(mp->cbin[bn], rparams); |
| 912 |
} |
| 913 |
|
| 914 |
/* output newline to ASCII file and/or flush as requested */ |
| 915 |
static int |
| 916 |
puteol(const LUENT *e, void *p) |
| 917 |
{ |
| 918 |
STREAMOUT *sop = (STREAMOUT *)e->data; |
| 919 |
|
| 920 |
if (outfmt == 'a') |
| 921 |
putc('\n', sop->ofp); |
| 922 |
if (!waitflush) |
| 923 |
fflush(sop->ofp); |
| 924 |
if (ferror(sop->ofp)) { |
| 925 |
sprintf(errmsg, "write error on file '%s'", e->key); |
| 926 |
error(SYSTEM, errmsg); |
| 927 |
} |
| 928 |
return 0; |
| 929 |
} |
| 930 |
|
| 931 |
/* put out ray contribution to file */ |
| 932 |
void |
| 933 |
put_contrib(const DCOLOR cnt, FILE *fout) |
| 934 |
{ |
| 935 |
float fv[3]; |
| 936 |
COLR cv; |
| 937 |
|
| 938 |
switch (outfmt) { |
| 939 |
case 'a': |
| 940 |
fprintf(fout, "%.6e\t%.6e\t%.6e\t", cnt[0], cnt[1], cnt[2]); |
| 941 |
break; |
| 942 |
case 'f': |
| 943 |
copycolor(fv, cnt); |
| 944 |
fwrite(fv, sizeof(float), 3, fout); |
| 945 |
break; |
| 946 |
case 'd': |
| 947 |
fwrite(cnt, sizeof(double), 3, fout); |
| 948 |
break; |
| 949 |
case 'c': |
| 950 |
setcolr(cv, cnt[0], cnt[1], cnt[2]); |
| 951 |
fwrite(cv, sizeof(cv), 1, fout); |
| 952 |
break; |
| 953 |
default: |
| 954 |
error(INTERNAL, "botched output format"); |
| 955 |
} |
| 956 |
} |
| 957 |
|
| 958 |
/* output ray tallies and clear for next accumulation */ |
| 959 |
void |
| 960 |
done_contrib(void) |
| 961 |
{ |
| 962 |
int i, j; |
| 963 |
MODCONT *mp; |
| 964 |
STREAMOUT *sop; |
| 965 |
/* output modifiers in order */ |
| 966 |
for (i = 0; i < nmods; i++) { |
| 967 |
mp = (MODCONT *)lu_find(&modconttab,modname[i])->data; |
| 968 |
sop = getostream(mp->outspec, mp->modname, 0,0); |
| 969 |
put_contrib(mp->cbin[0], sop->ofp); |
| 970 |
if (mp->nbins > 3 && /* minor optimization */ |
| 971 |
sop == getostream(mp->outspec, mp->modname, 1,0)) |
| 972 |
for (j = 1; j < mp->nbins; j++) |
| 973 |
put_contrib(mp->cbin[j], sop->ofp); |
| 974 |
else |
| 975 |
for (j = 1; j < mp->nbins; j++) |
| 976 |
put_contrib(mp->cbin[j], |
| 977 |
getostream(mp->outspec,mp->modname,j,0)->ofp); |
| 978 |
/* clear for next time */ |
| 979 |
memset(mp->cbin, 0, sizeof(DCOLOR)*mp->nbins); |
| 980 |
} |
| 981 |
--waitflush; /* terminate records */ |
| 982 |
lu_doall(&ofiletab, puteol, NULL); |
| 983 |
if (using_stdout & (outfmt == 'a')) |
| 984 |
putc('\n', stdout); |
| 985 |
if (!waitflush) { |
| 986 |
waitflush = xres; |
| 987 |
if (using_stdout) |
| 988 |
fflush(stdout); |
| 989 |
} |
| 990 |
} |
| 991 |
|
| 992 |
/* queue completed ray tree produced by rtrace process */ |
| 993 |
void |
| 994 |
queue_raytree(struct rtproc *rtp) |
| 995 |
{ |
| 996 |
struct rtproc *rtu, *rtl = NULL; |
| 997 |
/* insert following ray order */ |
| 998 |
for (rtu = rt_unproc; rtu != NULL; rtu = (rtl=rtu)->next) |
| 999 |
if (rtp->raynum < rtu->raynum) |
| 1000 |
break; |
| 1001 |
rtu = (struct rtproc *)malloc(sizeof(struct rtproc)); |
| 1002 |
if (rtu == NULL) |
| 1003 |
error(SYSTEM, "out of memory in queue_raytree"); |
| 1004 |
*rtu = *rtp; |
| 1005 |
if (rtl == NULL) { |
| 1006 |
rtu->next = rt_unproc; |
| 1007 |
rt_unproc = rtu; |
| 1008 |
} else { |
| 1009 |
rtu->next = rtl->next; |
| 1010 |
rtl->next = rtu; |
| 1011 |
} |
| 1012 |
rtp->raynum = 0; /* clear path for next ray tree */ |
| 1013 |
rtp->bsiz = 0; |
| 1014 |
rtp->buf = NULL; |
| 1015 |
rtp->nbr = 0; |
| 1016 |
} |
| 1017 |
|
| 1018 |
/* process completed ray trees from our queue */ |
| 1019 |
void |
| 1020 |
process_queue(void) |
| 1021 |
{ |
| 1022 |
char modname[128]; |
| 1023 |
/* ray-ordered queue */ |
| 1024 |
while (rt_unproc != NULL && rt_unproc->raynum == lastdone+1) { |
| 1025 |
struct rtproc *rtp = rt_unproc; |
| 1026 |
int n = rtp->nbr; |
| 1027 |
const char *cp = rtp->buf; |
| 1028 |
while (n > 0) { /* process rays */ |
| 1029 |
register char *mnp = modname; |
| 1030 |
/* skip leading tabs */ |
| 1031 |
while (n > 0 && *cp == '\t') { |
| 1032 |
cp++; n--; |
| 1033 |
} |
| 1034 |
if (!n || !(isalpha(*cp) | (*cp == '_'))) |
| 1035 |
error(USER, "bad modifier name from rtrace"); |
| 1036 |
/* get modifier name */ |
| 1037 |
while (n > 1 && *cp != '\t') { |
| 1038 |
if (mnp - modname >= sizeof(modname)-2) |
| 1039 |
error(INTERNAL, "modifier name too long"); |
| 1040 |
*mnp++ = *cp++; n--; |
| 1041 |
} |
| 1042 |
*mnp = '\0'; |
| 1043 |
cp++; n--; /* eat following tab */ |
| 1044 |
if (n < (int)(sizeof(float)*9)) |
| 1045 |
error(USER, "incomplete ray value from rtrace"); |
| 1046 |
/* add ray contribution */ |
| 1047 |
memcpy(rparams, cp, sizeof(float)*9); |
| 1048 |
cp += sizeof(float)*9; n -= sizeof(float)*9; |
| 1049 |
add_contrib(modname); |
| 1050 |
} |
| 1051 |
if (!accumulate) |
| 1052 |
done_contrib(); /* sum up contributions & output */ |
| 1053 |
lastdone = rtp->raynum; |
| 1054 |
if (rtp->buf != NULL) /* free up buffer space */ |
| 1055 |
free(rtp->buf); |
| 1056 |
rt_unproc = rtp->next; |
| 1057 |
free(rtp); /* done with this ray tree */ |
| 1058 |
} |
| 1059 |
} |
| 1060 |
|
| 1061 |
/* wait for rtrace process to finish with ray tree */ |
| 1062 |
struct rtproc * |
| 1063 |
wait_rproc(void) |
| 1064 |
{ |
| 1065 |
struct rtproc *rtfree = NULL; |
| 1066 |
fd_set readset, errset; |
| 1067 |
int nr; |
| 1068 |
struct rtproc *rt; |
| 1069 |
int n; |
| 1070 |
|
| 1071 |
do { |
| 1072 |
nr = 0; /* prepare select call */ |
| 1073 |
FD_ZERO(&readset); FD_ZERO(&errset); n = 0; |
| 1074 |
for (rt = &rt0; rt != NULL; rt = rt->next) { |
| 1075 |
if (rt->raynum) { |
| 1076 |
FD_SET(rt->pd.r, &readset); |
| 1077 |
++nr; |
| 1078 |
} |
| 1079 |
FD_SET(rt->pd.r, &errset); |
| 1080 |
if (rt->pd.r >= n) |
| 1081 |
n = rt->pd.r + 1; |
| 1082 |
} |
| 1083 |
if (!nr) /* no rays pending */ |
| 1084 |
break; |
| 1085 |
if (nr > 1) { /* call select for multiple proc's */ |
| 1086 |
errno = 0; |
| 1087 |
if (select(n, &readset, NULL, &errset, NULL) < 0) |
| 1088 |
error(SYSTEM, "select call error in wait_rproc()"); |
| 1089 |
} else |
| 1090 |
FD_ZERO(&errset); |
| 1091 |
nr = 0; |
| 1092 |
for (rt = &rt0; rt != NULL; rt = rt->next) { |
| 1093 |
if (!FD_ISSET(rt->pd.r, &readset) && |
| 1094 |
!FD_ISSET(rt->pd.r, &errset)) |
| 1095 |
continue; |
| 1096 |
if (rt->buf == NULL) { |
| 1097 |
rt->bsiz = treebufsiz; |
| 1098 |
rt->buf = (char *)malloc(treebufsiz); |
| 1099 |
} else if (rt->nbr + BUFSIZ > rt->bsiz) { |
| 1100 |
if (rt->bsiz + BUFSIZ <= treebufsiz) |
| 1101 |
rt->bsiz = treebufsiz; |
| 1102 |
else |
| 1103 |
treebufsiz = rt->bsiz += BUFSIZ; |
| 1104 |
rt->buf = (char *)realloc(rt->buf, rt->bsiz); |
| 1105 |
} |
| 1106 |
if (rt->buf == NULL) |
| 1107 |
error(SYSTEM, "out of memory in wait_rproc"); |
| 1108 |
nr = read(rt->pd.r, rt->buf+rt->nbr, rt->bsiz-rt->nbr); |
| 1109 |
if (nr <= 0) |
| 1110 |
error(USER, "rtrace process died"); |
| 1111 |
rt->nbr += nr; /* advance & check */ |
| 1112 |
if (rt->nbr >= 4 && !memcmp(rt->buf+rt->nbr-4, |
| 1113 |
"~\t~\t", 4)) { |
| 1114 |
rt->nbr -= 4; /* elide terminator */ |
| 1115 |
queue_raytree(rt); |
| 1116 |
rtfree = rt; /* ready for next ray */ |
| 1117 |
} |
| 1118 |
} |
| 1119 |
} while ((rtfree == NULL) & (nr > 0)); /* repeat until ready or out */ |
| 1120 |
return rtfree; |
| 1121 |
} |
| 1122 |
|
| 1123 |
/* return next available rtrace process */ |
| 1124 |
struct rtproc * |
| 1125 |
get_rproc(void) |
| 1126 |
{ |
| 1127 |
struct rtproc *rtp; |
| 1128 |
/* check for idle rtrace */ |
| 1129 |
for (rtp = &rt0; rtp != NULL; rtp = rtp->next) |
| 1130 |
if (!rtp->raynum) |
| 1131 |
return rtp; |
| 1132 |
return wait_rproc(); /* need to wait for one */ |
| 1133 |
} |
| 1134 |
|
| 1135 |
/* trace ray contributions (main loop) */ |
| 1136 |
void |
| 1137 |
trace_contribs(FILE *fin) |
| 1138 |
{ |
| 1139 |
char inpbuf[128]; |
| 1140 |
int iblen; |
| 1141 |
struct rtproc *rtp; |
| 1142 |
/* loop over input */ |
| 1143 |
while ((iblen = getinp(inpbuf, fin)) >= 0) { |
| 1144 |
if (!iblen || /* need reset? */ |
| 1145 |
queue_length() > 10*nrtprocs() || |
| 1146 |
lastray+1 < lastray) { |
| 1147 |
while (wait_rproc() != NULL) |
| 1148 |
process_queue(); |
| 1149 |
if (lastray+1 < lastray) |
| 1150 |
lastdone = lastray = 0; |
| 1151 |
} |
| 1152 |
rtp = get_rproc(); /* get avail. rtrace process */ |
| 1153 |
rtp->raynum = ++lastray; /* assign ray */ |
| 1154 |
if (iblen) { /* trace ray if valid */ |
| 1155 |
writebuf(rtp->pd.w, inpbuf, iblen); |
| 1156 |
} else { /* else bypass dummy ray */ |
| 1157 |
queue_raytree(rtp); /* empty tree */ |
| 1158 |
if ((yres <= 0) | (waitflush > 1)) |
| 1159 |
waitflush = 1; /* flush after this */ |
| 1160 |
} |
| 1161 |
process_queue(); /* catch up with results */ |
| 1162 |
if (raysleft && !--raysleft) |
| 1163 |
break; /* preemptive EOI */ |
| 1164 |
} |
| 1165 |
while (wait_rproc() != NULL) /* process outstanding rays */ |
| 1166 |
process_queue(); |
| 1167 |
if (accumulate) |
| 1168 |
done_contrib(); /* output tallies */ |
| 1169 |
if (raysleft) |
| 1170 |
error(USER, "unexpected EOF on input"); |
| 1171 |
lu_done(&ofiletab); /* close output files */ |
| 1172 |
} |
| 1173 |
|
| 1174 |
/* get ray contribution from previous file */ |
| 1175 |
static int |
| 1176 |
get_contrib(DCOLOR cnt, FILE *finp) |
| 1177 |
{ |
| 1178 |
COLOR fv; |
| 1179 |
COLR cv; |
| 1180 |
|
| 1181 |
switch (outfmt) { |
| 1182 |
case 'a': |
| 1183 |
return(fscanf(finp,"%lf %lf %lf",&cnt[0],&cnt[1],&cnt[2]) == 3); |
| 1184 |
case 'f': |
| 1185 |
if (fread(fv, sizeof(fv[0]), 3, finp) != 3) |
| 1186 |
return(0); |
| 1187 |
copycolor(cnt, fv); |
| 1188 |
return(1); |
| 1189 |
case 'd': |
| 1190 |
return(fread(cnt, sizeof(cnt[0]), 3, finp) == 3); |
| 1191 |
case 'c': |
| 1192 |
if (fread(cv, sizeof(cv), 1, finp) != 1) |
| 1193 |
return(0); |
| 1194 |
colr_color(fv, cv); |
| 1195 |
copycolor(cnt, fv); |
| 1196 |
return(1); |
| 1197 |
default: |
| 1198 |
error(INTERNAL, "botched output format"); |
| 1199 |
} |
| 1200 |
return(0); /* pro forma return */ |
| 1201 |
} |
| 1202 |
|
| 1203 |
/* close output file opened for input */ |
| 1204 |
static int |
| 1205 |
myclose(const LUENT *e, void *p) |
| 1206 |
{ |
| 1207 |
STREAMOUT *sop = (STREAMOUT *)e->data; |
| 1208 |
|
| 1209 |
if (sop->ofp == NULL) |
| 1210 |
return; |
| 1211 |
fclose(sop->ofp); |
| 1212 |
sop->ofp = NULL; |
| 1213 |
} |
| 1214 |
|
| 1215 |
/* load previously accumulated values */ |
| 1216 |
void |
| 1217 |
reload_output(void) |
| 1218 |
{ |
| 1219 |
int i, j; |
| 1220 |
MODCONT *mp; |
| 1221 |
int ofl; |
| 1222 |
char oname[1024]; |
| 1223 |
char *fmode = "rb"; |
| 1224 |
char *outvfmt; |
| 1225 |
LUENT *ment, *oent; |
| 1226 |
int xr, yr; |
| 1227 |
STREAMOUT sout; |
| 1228 |
DCOLOR rgbv; |
| 1229 |
|
| 1230 |
switch (outfmt) { |
| 1231 |
case 'a': |
| 1232 |
outvfmt = "ascii"; |
| 1233 |
fmode = "r"; |
| 1234 |
break; |
| 1235 |
case 'f': |
| 1236 |
outvfmt = "float"; |
| 1237 |
break; |
| 1238 |
case 'd': |
| 1239 |
outvfmt = "double"; |
| 1240 |
break; |
| 1241 |
case 'c': |
| 1242 |
outvfmt = COLRFMT; |
| 1243 |
break; |
| 1244 |
default: |
| 1245 |
error(INTERNAL, "botched output format"); |
| 1246 |
return; |
| 1247 |
} |
| 1248 |
/* reload modifier values */ |
| 1249 |
for (i = 0; i < nmods; i++) { |
| 1250 |
ment = lu_find(&modconttab,modname[i]); |
| 1251 |
mp = (MODCONT *)ment->data; |
| 1252 |
if (mp->outspec == NULL) |
| 1253 |
error(USER, "cannot reload from stdout"); |
| 1254 |
if (mp->outspec[0] == '!') |
| 1255 |
error(USER, "cannot reload from command"); |
| 1256 |
for (j = 0; ; j++) { /* load each modifier bin */ |
| 1257 |
ofl = ofname(oname, mp->outspec, mp->modname, j); |
| 1258 |
if (ofl < 0) |
| 1259 |
error(USER, "bad output file specification"); |
| 1260 |
oent = lu_find(&ofiletab, oname); |
| 1261 |
if (oent->data != NULL) { |
| 1262 |
sout = *(STREAMOUT *)oent->data; |
| 1263 |
} else { |
| 1264 |
sout.reclen = 0; |
| 1265 |
sout.outpipe = 0; |
| 1266 |
sout.xr = xres; sout.yr = yres; |
| 1267 |
sout.ofp = NULL; |
| 1268 |
} |
| 1269 |
if (sout.ofp == NULL) { /* open output as input */ |
| 1270 |
sout.ofp = fopen(oname, fmode); |
| 1271 |
if (sout.ofp == NULL) { |
| 1272 |
if (j) |
| 1273 |
break; /* assume end of modifier */ |
| 1274 |
sprintf(errmsg, "missing reload file '%s'", |
| 1275 |
oname); |
| 1276 |
error(WARNING, errmsg); |
| 1277 |
break; |
| 1278 |
} |
| 1279 |
if (header && checkheader(sout.ofp, outvfmt, NULL) != 1) { |
| 1280 |
sprintf(errmsg, "format mismatch for '%s'", |
| 1281 |
oname); |
| 1282 |
error(USER, errmsg); |
| 1283 |
} |
| 1284 |
if ((sout.xr > 0) & (sout.yr > 0) && |
| 1285 |
(!fscnresolu(&xr, &yr, sout.ofp) || |
| 1286 |
xr != sout.xr || |
| 1287 |
yr != sout.yr)) { |
| 1288 |
sprintf(errmsg, "resolution mismatch for '%s'", |
| 1289 |
oname); |
| 1290 |
error(USER, errmsg); |
| 1291 |
} |
| 1292 |
} |
| 1293 |
if (oent->key == NULL) /* new file entry */ |
| 1294 |
oent->key = strcpy((char *) |
| 1295 |
malloc(strlen(oname)+1), oname); |
| 1296 |
if (oent->data == NULL) |
| 1297 |
oent->data = (char *)malloc(sizeof(STREAMOUT)); |
| 1298 |
*(STREAMOUT *)oent->data = sout; |
| 1299 |
/* read in RGB value */ |
| 1300 |
if (!get_contrib(rgbv, sout.ofp)) { |
| 1301 |
if (!j) |
| 1302 |
break; /* ignore empty file */ |
| 1303 |
if (j && j < mp->nbins) { |
| 1304 |
sprintf(errmsg, "missing data in '%s'", |
| 1305 |
oname); |
| 1306 |
error(USER, errmsg); |
| 1307 |
} |
| 1308 |
break; |
| 1309 |
} |
| 1310 |
if (j >= mp->nbins) /* grow modifier size */ |
| 1311 |
ment->data = (char *)(mp = growmodifier(mp, j+1)); |
| 1312 |
copycolor(mp->cbin[j], rgbv); |
| 1313 |
} |
| 1314 |
} |
| 1315 |
lu_doall(&ofiletab, myclose, NULL); /* close all files */ |
| 1316 |
} |
| 1317 |
|
| 1318 |
/* seek on the given output file */ |
| 1319 |
static int |
| 1320 |
myseeko(const LUENT *e, void *p) |
| 1321 |
{ |
| 1322 |
STREAMOUT *sop = (STREAMOUT *)e->data; |
| 1323 |
off_t nbytes = *(off_t *)p; |
| 1324 |
|
| 1325 |
if (sop->reclen > 1) |
| 1326 |
nbytes = nbytes * sop->reclen; |
| 1327 |
if (fseeko(sop->ofp, nbytes, SEEK_CUR) < 0) { |
| 1328 |
sprintf(errmsg, "seek error on file '%s'", e->key); |
| 1329 |
error(SYSTEM, errmsg); |
| 1330 |
} |
| 1331 |
return 0; |
| 1332 |
} |
| 1333 |
|
| 1334 |
/* recover output if possible */ |
| 1335 |
void |
| 1336 |
recover_output(FILE *fin) |
| 1337 |
{ |
| 1338 |
off_t lastout = -1; |
| 1339 |
int outvsiz, recsiz; |
| 1340 |
char *outvfmt; |
| 1341 |
int i, j; |
| 1342 |
MODCONT *mp; |
| 1343 |
int ofl; |
| 1344 |
char oname[1024]; |
| 1345 |
LUENT *ment, *oent; |
| 1346 |
STREAMOUT sout; |
| 1347 |
off_t nvals; |
| 1348 |
int xr, yr; |
| 1349 |
|
| 1350 |
switch (outfmt) { |
| 1351 |
case 'a': |
| 1352 |
error(USER, "cannot recover ASCII output"); |
| 1353 |
return; |
| 1354 |
case 'f': |
| 1355 |
outvsiz = sizeof(float)*3; |
| 1356 |
outvfmt = "float"; |
| 1357 |
break; |
| 1358 |
case 'd': |
| 1359 |
outvsiz = sizeof(double)*3; |
| 1360 |
outvfmt = "double"; |
| 1361 |
break; |
| 1362 |
case 'c': |
| 1363 |
outvsiz = sizeof(COLR); |
| 1364 |
outvfmt = COLRFMT; |
| 1365 |
break; |
| 1366 |
default: |
| 1367 |
error(INTERNAL, "botched output format"); |
| 1368 |
return; |
| 1369 |
} |
| 1370 |
/* check modifier outputs */ |
| 1371 |
for (i = 0; i < nmods; i++) { |
| 1372 |
ment = lu_find(&modconttab,modname[i]); |
| 1373 |
mp = (MODCONT *)ment->data; |
| 1374 |
if (mp->outspec == NULL) |
| 1375 |
error(USER, "cannot recover from stdout"); |
| 1376 |
if (mp->outspec[0] == '!') |
| 1377 |
error(USER, "cannot recover from command"); |
| 1378 |
for (j = 0; ; j++) { /* check each bin's file */ |
| 1379 |
ofl = ofname(oname, mp->outspec, mp->modname, j); |
| 1380 |
if (ofl < 0) |
| 1381 |
error(USER, "bad output file specification"); |
| 1382 |
oent = lu_find(&ofiletab, oname); |
| 1383 |
if (oent->data != NULL) { |
| 1384 |
sout = *(STREAMOUT *)oent->data; |
| 1385 |
} else { |
| 1386 |
sout.reclen = 0; |
| 1387 |
sout.outpipe = 0; |
| 1388 |
sout.xr = xres; sout.yr = yres; |
| 1389 |
sout.ofp = NULL; |
| 1390 |
} |
| 1391 |
if (sout.ofp != NULL) { /* already open? */ |
| 1392 |
if (ofl & OF_BIN) |
| 1393 |
continue; |
| 1394 |
break; |
| 1395 |
} |
| 1396 |
/* open output */ |
| 1397 |
sout.ofp = fopen(oname, "rb+"); |
| 1398 |
if (sout.ofp == NULL) { |
| 1399 |
if (j) |
| 1400 |
break; /* assume end of modifier */ |
| 1401 |
sprintf(errmsg, "missing recover file '%s'", |
| 1402 |
oname); |
| 1403 |
error(WARNING, errmsg); |
| 1404 |
break; |
| 1405 |
} |
| 1406 |
nvals = lseek(fileno(sout.ofp), 0, SEEK_END); |
| 1407 |
if (nvals <= 0) { |
| 1408 |
lastout = 0; /* empty output, quit here */ |
| 1409 |
fclose(sout.ofp); |
| 1410 |
break; |
| 1411 |
} |
| 1412 |
if (!sout.reclen) { |
| 1413 |
if (!(ofl & OF_BIN)) { |
| 1414 |
sprintf(errmsg, |
| 1415 |
"need -bn to recover file '%s'", |
| 1416 |
oname); |
| 1417 |
error(USER, errmsg); |
| 1418 |
} |
| 1419 |
recsiz = outvsiz; |
| 1420 |
} else |
| 1421 |
recsiz = outvsiz * sout.reclen; |
| 1422 |
|
| 1423 |
lseek(fileno(sout.ofp), 0, SEEK_SET); |
| 1424 |
if (header && checkheader(sout.ofp, outvfmt, NULL) != 1) { |
| 1425 |
sprintf(errmsg, "format mismatch for '%s'", |
| 1426 |
oname); |
| 1427 |
error(USER, errmsg); |
| 1428 |
} |
| 1429 |
if ((xres > 0) & (yres > 0) && |
| 1430 |
(!fscnresolu(&xr, &yr, sout.ofp) || |
| 1431 |
xr != xres || |
| 1432 |
yr != yres)) { |
| 1433 |
sprintf(errmsg, "resolution mismatch for '%s'", |
| 1434 |
oname); |
| 1435 |
error(USER, errmsg); |
| 1436 |
} |
| 1437 |
nvals = (nvals - (off_t)ftell(sout.ofp)) / recsiz; |
| 1438 |
if ((lastout < 0) | (nvals < lastout)) |
| 1439 |
lastout = nvals; |
| 1440 |
if (oent->key == NULL) /* new entry */ |
| 1441 |
oent->key = strcpy((char *) |
| 1442 |
malloc(strlen(oname)+1), oname); |
| 1443 |
if (oent->data == NULL) |
| 1444 |
oent->data = (char *)malloc(sizeof(STREAMOUT)); |
| 1445 |
*(STREAMOUT *)oent->data = sout; |
| 1446 |
if (!(ofl & OF_BIN)) |
| 1447 |
break; /* no bin separation */ |
| 1448 |
} |
| 1449 |
if (!lastout) { /* empty output */ |
| 1450 |
error(WARNING, "no previous data to recover"); |
| 1451 |
lu_done(&ofiletab); /* reclose all outputs */ |
| 1452 |
return; |
| 1453 |
} |
| 1454 |
if (j > mp->nbins) /* reallocate modifier bins */ |
| 1455 |
ment->data = (char *)(mp = growmodifier(mp, j)); |
| 1456 |
} |
| 1457 |
if (lastout < 0) { |
| 1458 |
error(WARNING, "no output files to recover"); |
| 1459 |
return; |
| 1460 |
} |
| 1461 |
if (raysleft && lastout >= raysleft) { |
| 1462 |
error(WARNING, "output appears to be complete"); |
| 1463 |
/* XXX should read & discard input? */ |
| 1464 |
quit(0); |
| 1465 |
} |
| 1466 |
/* seek on all files */ |
| 1467 |
nvals = lastout * outvsiz; |
| 1468 |
lu_doall(&ofiletab, myseeko, &nvals); |
| 1469 |
/* skip repeated input */ |
| 1470 |
for (nvals = 0; nvals < lastout; nvals++) |
| 1471 |
if (getinp(oname, fin) < 0) |
| 1472 |
error(USER, "unexpected EOF on input"); |
| 1473 |
lastray = lastdone = (unsigned long)lastout; |
| 1474 |
if (raysleft) |
| 1475 |
raysleft -= lastray; |
| 1476 |
} |
