| 1 |
#ifndef lint |
| 2 |
static const char RCSid[] = "$Id: rc2.c,v 2.21 2016/09/16 05:06:07 greg Exp $"; |
| 3 |
#endif |
| 4 |
/* |
| 5 |
* Accumulate ray contributions for a set of materials |
| 6 |
* File i/o and recovery |
| 7 |
*/ |
| 8 |
|
| 9 |
#include <ctype.h> |
| 10 |
#include "platform.h" |
| 11 |
#include "rcontrib.h" |
| 12 |
#include "resolu.h" |
| 13 |
|
| 14 |
/* Close output stream and free record */ |
| 15 |
static void |
| 16 |
closestream(void *p) |
| 17 |
{ |
| 18 |
STREAMOUT *sop = (STREAMOUT *)p; |
| 19 |
|
| 20 |
if (sop->ofp != NULL) { |
| 21 |
int status = 0; |
| 22 |
if (sop->outpipe) |
| 23 |
status = pclose(sop->ofp); |
| 24 |
else if (sop->ofp != stdout) |
| 25 |
status = fclose(sop->ofp); |
| 26 |
if (status) |
| 27 |
error(SYSTEM, "error closing output stream"); |
| 28 |
} |
| 29 |
free(p); |
| 30 |
} |
| 31 |
|
| 32 |
LUTAB ofiletab = LU_SINIT(free,closestream); /* output file table */ |
| 33 |
|
| 34 |
#define OF_MODIFIER 01 |
| 35 |
#define OF_BIN 02 |
| 36 |
|
| 37 |
/************************** STREAM & FILE I/O ***************************/ |
| 38 |
|
| 39 |
/* Construct output file name and return flags whether modifier/bin present */ |
| 40 |
static int |
| 41 |
ofname(char *oname, const char *ospec, const char *mname, int bn) |
| 42 |
{ |
| 43 |
const char *mnp = NULL; |
| 44 |
const char *bnp = NULL; |
| 45 |
const char *cp; |
| 46 |
|
| 47 |
if (ospec == NULL) |
| 48 |
return(-1); |
| 49 |
for (cp = ospec; *cp; cp++) /* check format position(s) */ |
| 50 |
if (*cp == '%') { |
| 51 |
do |
| 52 |
++cp; |
| 53 |
while (isdigit(*cp)); |
| 54 |
switch (*cp) { |
| 55 |
case '%': |
| 56 |
break; |
| 57 |
case 's': |
| 58 |
if (mnp != NULL) |
| 59 |
return(-1); |
| 60 |
mnp = cp; |
| 61 |
break; |
| 62 |
case 'd': |
| 63 |
case 'i': |
| 64 |
case 'o': |
| 65 |
case 'x': |
| 66 |
case 'X': |
| 67 |
if (bnp != NULL) |
| 68 |
return(-1); |
| 69 |
bnp = cp; |
| 70 |
break; |
| 71 |
default: |
| 72 |
return(-1); |
| 73 |
} |
| 74 |
} |
| 75 |
if (mnp != NULL) { /* create file name */ |
| 76 |
if (bnp != NULL) { |
| 77 |
if (bnp > mnp) |
| 78 |
sprintf(oname, ospec, mname, bn); |
| 79 |
else |
| 80 |
sprintf(oname, ospec, bn, mname); |
| 81 |
return(OF_MODIFIER|OF_BIN); |
| 82 |
} |
| 83 |
sprintf(oname, ospec, mname); |
| 84 |
return(OF_MODIFIER); |
| 85 |
} |
| 86 |
if (bnp != NULL) { |
| 87 |
sprintf(oname, ospec, bn); |
| 88 |
return(OF_BIN); |
| 89 |
} |
| 90 |
strcpy(oname, ospec); |
| 91 |
return(0); |
| 92 |
} |
| 93 |
|
| 94 |
|
| 95 |
/* Write header to the given output stream */ |
| 96 |
static void |
| 97 |
printheader(FILE *fout, const char *info) |
| 98 |
{ |
| 99 |
extern char VersionID[]; |
| 100 |
/* copy octree header */ |
| 101 |
if (octname[0] == '!') { |
| 102 |
newheader("RADIANCE", fout); |
| 103 |
fputs(octname+1, fout); |
| 104 |
if (octname[strlen(octname)-1] != '\n') |
| 105 |
fputc('\n', fout); |
| 106 |
} else { |
| 107 |
FILE *fin = fopen(octname, (outfmt=='a') ? "r" : "rb"); |
| 108 |
if (fin == NULL) |
| 109 |
quit(1); |
| 110 |
checkheader(fin, OCTFMT, fout); |
| 111 |
fclose(fin); |
| 112 |
} |
| 113 |
printargs(gargc-1, gargv, fout); /* add our command */ |
| 114 |
fprintf(fout, "SOFTWARE= %s\n", VersionID); |
| 115 |
fputnow(fout); |
| 116 |
fputs("NCOMP=3\n", fout); /* always RGB */ |
| 117 |
if (info != NULL) /* add extra info if given */ |
| 118 |
fputs(info, fout); |
| 119 |
fputformat(formstr(outfmt), fout); |
| 120 |
fputc('\n', fout); /* empty line ends header */ |
| 121 |
} |
| 122 |
|
| 123 |
|
| 124 |
/* Write resolution string to given output stream */ |
| 125 |
static void |
| 126 |
printresolu(FILE *fout, int xr, int yr) |
| 127 |
{ |
| 128 |
if ((xr > 0) & (yr > 0)) /* resolution string */ |
| 129 |
fprtresolu(xr, yr, fout); |
| 130 |
} |
| 131 |
|
| 132 |
|
| 133 |
/* Get output stream pointer (open and write header if new and noopen==0) */ |
| 134 |
STREAMOUT * |
| 135 |
getostream(const char *ospec, const char *mname, int bn, int noopen) |
| 136 |
{ |
| 137 |
static STREAMOUT stdos; |
| 138 |
char info[1024]; |
| 139 |
int ofl; |
| 140 |
char oname[1024]; |
| 141 |
LUENT *lep; |
| 142 |
STREAMOUT *sop; |
| 143 |
char *cp; |
| 144 |
|
| 145 |
if (ospec == NULL) { /* use stdout? */ |
| 146 |
if (!noopen & !using_stdout) { |
| 147 |
if (outfmt != 'a') |
| 148 |
SET_FILE_BINARY(stdout); |
| 149 |
if (header) { |
| 150 |
cp = info; |
| 151 |
if (yres > 0) { |
| 152 |
sprintf(cp, "NROWS=%d\n", yres * |
| 153 |
(xres + !xres) ); |
| 154 |
while (*cp) ++cp; |
| 155 |
} |
| 156 |
if ((xres <= 0) | (stdos.reclen > 1)) |
| 157 |
sprintf(cp, "NCOLS=%d\n", stdos.reclen); |
| 158 |
printheader(stdout, info); |
| 159 |
} |
| 160 |
if (stdos.reclen == 1) |
| 161 |
printresolu(stdout, xres, yres); |
| 162 |
if (waitflush > 0) |
| 163 |
fflush(stdout); |
| 164 |
stdos.xr = xres; stdos.yr = yres; |
| 165 |
#ifdef getc_unlocked |
| 166 |
flockfile(stdout); /* avoid lock/unlock overhead */ |
| 167 |
#endif |
| 168 |
using_stdout = 1; |
| 169 |
} |
| 170 |
stdos.ofp = stdout; |
| 171 |
stdos.reclen += noopen; |
| 172 |
return(&stdos); |
| 173 |
} |
| 174 |
ofl = ofname(oname, ospec, mname, bn); /* get output name */ |
| 175 |
if (ofl < 0) { |
| 176 |
sprintf(errmsg, "bad output format '%s'", ospec); |
| 177 |
error(USER, errmsg); |
| 178 |
} |
| 179 |
lep = lu_find(&ofiletab, oname); /* look it up */ |
| 180 |
if (lep->key == NULL) /* new entry */ |
| 181 |
lep->key = strcpy((char *)malloc(strlen(oname)+1), oname); |
| 182 |
sop = (STREAMOUT *)lep->data; |
| 183 |
if (sop == NULL) { /* allocate stream */ |
| 184 |
sop = (STREAMOUT *)malloc(sizeof(STREAMOUT)); |
| 185 |
if (sop == NULL) |
| 186 |
error(SYSTEM, "out of memory in getostream"); |
| 187 |
sop->outpipe = (oname[0] == '!'); |
| 188 |
sop->reclen = 0; |
| 189 |
sop->ofp = NULL; /* open iff noopen==0 */ |
| 190 |
sop->xr = xres; sop->yr = yres; |
| 191 |
lep->data = (char *)sop; |
| 192 |
if (!sop->outpipe & !force_open & !recover && |
| 193 |
access(oname, F_OK) == 0) { |
| 194 |
errno = EEXIST; /* file exists */ |
| 195 |
goto openerr; |
| 196 |
} |
| 197 |
} else if (noopen && outfmt == 'c' && /* stream exists to picture? */ |
| 198 |
(sop->xr > 0) & (sop->yr > 0)) { |
| 199 |
if (ofl & OF_BIN) |
| 200 |
return(NULL); /* let caller offset bins */ |
| 201 |
sprintf(errmsg, "output '%s' not a valid picture", oname); |
| 202 |
error(WARNING, errmsg); |
| 203 |
} |
| 204 |
if (!noopen && sop->ofp == NULL) { /* open output stream */ |
| 205 |
if (oname[0] == '!') /* output to command */ |
| 206 |
sop->ofp = popen(oname+1, "w"); |
| 207 |
else /* else open file */ |
| 208 |
sop->ofp = fopen(oname, "w"); |
| 209 |
if (sop->ofp == NULL) |
| 210 |
goto openerr; |
| 211 |
if (outfmt != 'a') |
| 212 |
SET_FILE_BINARY(sop->ofp); |
| 213 |
#ifdef getc_unlocked |
| 214 |
flockfile(sop->ofp); /* avoid lock/unlock overhead */ |
| 215 |
#endif |
| 216 |
if (accumulate > 0) { /* global resolution */ |
| 217 |
sop->xr = xres; sop->yr = yres; |
| 218 |
} |
| 219 |
if (header) { |
| 220 |
cp = info; |
| 221 |
if (ofl & OF_MODIFIER || sop->reclen == 1) { |
| 222 |
sprintf(cp, "MODIFIER=%s\n", mname); |
| 223 |
while (*cp) ++cp; |
| 224 |
} |
| 225 |
if (ofl & OF_BIN) { |
| 226 |
sprintf(cp, "BIN=%d\n", bn); |
| 227 |
while (*cp) ++cp; |
| 228 |
} |
| 229 |
if (sop->yr > 0) { |
| 230 |
sprintf(cp, "NROWS=%d\n", sop->yr * |
| 231 |
(sop->xr + !sop->xr) ); |
| 232 |
while (*cp) ++cp; |
| 233 |
} |
| 234 |
if ((sop->xr <= 0) | (sop->reclen > 1)) |
| 235 |
sprintf(cp, "NCOLS=%d\n", sop->reclen); |
| 236 |
printheader(sop->ofp, info); |
| 237 |
} |
| 238 |
if (sop->reclen == 1) |
| 239 |
printresolu(sop->ofp, sop->xr, sop->yr); |
| 240 |
if (waitflush > 0) |
| 241 |
fflush(sop->ofp); |
| 242 |
} |
| 243 |
sop->reclen += noopen; /* add to length if noopen */ |
| 244 |
return(sop); /* return output stream */ |
| 245 |
openerr: |
| 246 |
sprintf(errmsg, "cannot open '%s' for writing", oname); |
| 247 |
error(SYSTEM, errmsg); |
| 248 |
return(NULL); /* pro forma return */ |
| 249 |
} |
| 250 |
|
| 251 |
|
| 252 |
/* Get a vector from stdin */ |
| 253 |
int |
| 254 |
getvec(FVECT vec) |
| 255 |
{ |
| 256 |
float vf[3]; |
| 257 |
double vd[3]; |
| 258 |
char buf[32]; |
| 259 |
int i; |
| 260 |
|
| 261 |
switch (inpfmt) { |
| 262 |
case 'a': /* ascii */ |
| 263 |
for (i = 0; i < 3; i++) { |
| 264 |
if (fgetword(buf, sizeof(buf), stdin) == NULL || |
| 265 |
!isflt(buf)) |
| 266 |
return(-1); |
| 267 |
vec[i] = atof(buf); |
| 268 |
} |
| 269 |
break; |
| 270 |
case 'f': /* binary float */ |
| 271 |
if (getbinary((char *)vf, sizeof(float), 3, stdin) != 3) |
| 272 |
return(-1); |
| 273 |
VCOPY(vec, vf); |
| 274 |
break; |
| 275 |
case 'd': /* binary double */ |
| 276 |
if (getbinary((char *)vd, sizeof(double), 3, stdin) != 3) |
| 277 |
return(-1); |
| 278 |
VCOPY(vec, vd); |
| 279 |
break; |
| 280 |
default: |
| 281 |
error(CONSISTENCY, "botched input format"); |
| 282 |
} |
| 283 |
return(0); |
| 284 |
} |
| 285 |
|
| 286 |
|
| 287 |
/* Put out ray contribution to file */ |
| 288 |
static void |
| 289 |
put_contrib(const DCOLOR cnt, FILE *fout) |
| 290 |
{ |
| 291 |
double sf = 1; |
| 292 |
COLOR fv; |
| 293 |
COLR cv; |
| 294 |
|
| 295 |
if (accumulate > 1) |
| 296 |
sf = 1./(double)accumulate; |
| 297 |
switch (outfmt) { |
| 298 |
case 'a': |
| 299 |
if (accumulate > 1) |
| 300 |
fprintf(fout, "%.6e\t%.6e\t%.6e\t", |
| 301 |
sf*cnt[0], sf*cnt[1], sf*cnt[2]); |
| 302 |
else |
| 303 |
fprintf(fout, "%.6e\t%.6e\t%.6e\t", |
| 304 |
cnt[0], cnt[1], cnt[2]); |
| 305 |
break; |
| 306 |
case 'f': |
| 307 |
if (accumulate > 1) { |
| 308 |
copycolor(fv, cnt); |
| 309 |
scalecolor(fv, sf); |
| 310 |
} else |
| 311 |
copycolor(fv, cnt); |
| 312 |
putbinary(fv, sizeof(float), 3, fout); |
| 313 |
break; |
| 314 |
case 'd': |
| 315 |
if (accumulate > 1) { |
| 316 |
DCOLOR dv; |
| 317 |
copycolor(dv, cnt); |
| 318 |
scalecolor(dv, sf); |
| 319 |
putbinary(dv, sizeof(double), 3, fout); |
| 320 |
} else |
| 321 |
putbinary(cnt, sizeof(double), 3, fout); |
| 322 |
break; |
| 323 |
case 'c': |
| 324 |
if (accumulate > 1) |
| 325 |
setcolr(cv, sf*cnt[0], sf*cnt[1], sf*cnt[2]); |
| 326 |
else |
| 327 |
setcolr(cv, cnt[0], cnt[1], cnt[2]); |
| 328 |
putbinary(cv, sizeof(cv), 1, fout); |
| 329 |
break; |
| 330 |
default: |
| 331 |
error(INTERNAL, "botched output format"); |
| 332 |
} |
| 333 |
} |
| 334 |
|
| 335 |
|
| 336 |
/* Output modifier values to appropriate stream(s) */ |
| 337 |
void |
| 338 |
mod_output(MODCONT *mp) |
| 339 |
{ |
| 340 |
STREAMOUT *sop = getostream(mp->outspec, mp->modname, mp->bin0, 0); |
| 341 |
int j; |
| 342 |
|
| 343 |
put_contrib(mp->cbin[0], sop->ofp); |
| 344 |
if (mp->nbins > 3 && /* minor optimization */ |
| 345 |
sop == getostream(mp->outspec, mp->modname, mp->bin0+1, 0)) { |
| 346 |
for (j = 1; j < mp->nbins; j++) |
| 347 |
put_contrib(mp->cbin[j], sop->ofp); |
| 348 |
} else { |
| 349 |
for (j = 1; j < mp->nbins; j++) { |
| 350 |
sop = getostream(mp->outspec, mp->modname, mp->bin0+j, 0); |
| 351 |
put_contrib(mp->cbin[j], sop->ofp); |
| 352 |
} |
| 353 |
} |
| 354 |
} |
| 355 |
|
| 356 |
|
| 357 |
/* callback to output newline to ASCII file and/or flush as requested */ |
| 358 |
static int |
| 359 |
puteol(const LUENT *e, void *p) |
| 360 |
{ |
| 361 |
STREAMOUT *sop = (STREAMOUT *)e->data; |
| 362 |
|
| 363 |
if (outfmt == 'a') |
| 364 |
putc('\n', sop->ofp); |
| 365 |
if (!waitflush) |
| 366 |
fflush(sop->ofp); |
| 367 |
if (ferror(sop->ofp)) { |
| 368 |
sprintf(errmsg, "write error on file '%s'", e->key); |
| 369 |
error(SYSTEM, errmsg); |
| 370 |
} |
| 371 |
return(0); |
| 372 |
} |
| 373 |
|
| 374 |
|
| 375 |
/* Terminate record output and flush if time */ |
| 376 |
void |
| 377 |
end_record() |
| 378 |
{ |
| 379 |
--waitflush; |
| 380 |
lu_doall(&ofiletab, &puteol, NULL); |
| 381 |
if (using_stdout & (outfmt == 'a')) |
| 382 |
putc('\n', stdout); |
| 383 |
if (!waitflush) { |
| 384 |
waitflush = (yres > 0) & (xres > 1) ? 0 : xres; |
| 385 |
if (using_stdout) |
| 386 |
fflush(stdout); |
| 387 |
} |
| 388 |
} |
| 389 |
|
| 390 |
/************************** PARTIAL RESULTS RECOVERY ***********************/ |
| 391 |
|
| 392 |
/* Get ray contribution from previous file */ |
| 393 |
static int |
| 394 |
get_contrib(DCOLOR cnt, FILE *finp) |
| 395 |
{ |
| 396 |
COLOR fv; |
| 397 |
COLR cv; |
| 398 |
|
| 399 |
switch (outfmt) { |
| 400 |
case 'a': |
| 401 |
return(fscanf(finp,"%lf %lf %lf",&cnt[0],&cnt[1],&cnt[2]) == 3); |
| 402 |
case 'f': |
| 403 |
if (getbinary(fv, sizeof(fv[0]), 3, finp) != 3) |
| 404 |
return(0); |
| 405 |
copycolor(cnt, fv); |
| 406 |
return(1); |
| 407 |
case 'd': |
| 408 |
return(getbinary(cnt, sizeof(cnt[0]), 3, finp) == 3); |
| 409 |
case 'c': |
| 410 |
if (getbinary(cv, sizeof(cv), 1, finp) != 1) |
| 411 |
return(0); |
| 412 |
colr_color(fv, cv); |
| 413 |
copycolor(cnt, fv); |
| 414 |
return(1); |
| 415 |
default: |
| 416 |
error(INTERNAL, "botched output format"); |
| 417 |
} |
| 418 |
return(0); /* pro forma return */ |
| 419 |
} |
| 420 |
|
| 421 |
|
| 422 |
/* Close output file opened for input */ |
| 423 |
static int |
| 424 |
myclose(const LUENT *e, void *p) |
| 425 |
{ |
| 426 |
STREAMOUT *sop = (STREAMOUT *)e->data; |
| 427 |
|
| 428 |
if (sop->ofp == NULL) |
| 429 |
return(0); |
| 430 |
fclose(sop->ofp); |
| 431 |
sop->ofp = NULL; |
| 432 |
return(0); |
| 433 |
} |
| 434 |
|
| 435 |
|
| 436 |
/* Load previously accumulated values */ |
| 437 |
void |
| 438 |
reload_output() |
| 439 |
{ |
| 440 |
int i, j; |
| 441 |
MODCONT *mp; |
| 442 |
int ofl; |
| 443 |
char oname[1024]; |
| 444 |
char *fmode = "rb"; |
| 445 |
char *outvfmt; |
| 446 |
LUENT *oent; |
| 447 |
int xr, yr; |
| 448 |
STREAMOUT *sop; |
| 449 |
DCOLOR rgbv; |
| 450 |
|
| 451 |
if (outfmt == 'a') |
| 452 |
fmode = "r"; |
| 453 |
outvfmt = formstr(outfmt); |
| 454 |
/* reload modifier values */ |
| 455 |
for (i = 0; i < nmods; i++) { |
| 456 |
mp = (MODCONT *)lu_find(&modconttab,modname[i])->data; |
| 457 |
if (mp->outspec == NULL) |
| 458 |
error(USER, "cannot reload from stdout"); |
| 459 |
if (mp->outspec[0] == '!') |
| 460 |
error(USER, "cannot reload from command"); |
| 461 |
for (j = 0; j < mp->nbins; j++) { /* load each modifier bin */ |
| 462 |
ofl = ofname(oname, mp->outspec, mp->modname, mp->bin0+j); |
| 463 |
if (ofl < 0) |
| 464 |
error(USER, "bad output file specification"); |
| 465 |
oent = lu_find(&ofiletab, oname); |
| 466 |
if (oent->data == NULL) |
| 467 |
error(INTERNAL, "unallocated stream in reload_output()"); |
| 468 |
sop = (STREAMOUT *)oent->data; |
| 469 |
if (sop->ofp == NULL) { /* open output as input */ |
| 470 |
sop->ofp = fopen(oname, fmode); |
| 471 |
if (sop->ofp == NULL) { |
| 472 |
sprintf(errmsg, "missing reload file '%s'", |
| 473 |
oname); |
| 474 |
error(WARNING, errmsg); |
| 475 |
break; |
| 476 |
} |
| 477 |
#ifdef getc_unlocked |
| 478 |
flockfile(sop->ofp); |
| 479 |
#endif |
| 480 |
if (header && checkheader(sop->ofp, outvfmt, NULL) != 1) { |
| 481 |
sprintf(errmsg, "format mismatch for '%s'", |
| 482 |
oname); |
| 483 |
error(USER, errmsg); |
| 484 |
} |
| 485 |
if ((sop->reclen == 1) & (sop->xr > 0) & (sop->yr > 0) && |
| 486 |
(!fscnresolu(&xr, &yr, sop->ofp) || |
| 487 |
(xr != sop->xr) | |
| 488 |
(yr != sop->yr))) { |
| 489 |
sprintf(errmsg, "resolution mismatch for '%s'", |
| 490 |
oname); |
| 491 |
error(USER, errmsg); |
| 492 |
} |
| 493 |
} |
| 494 |
/* read in RGB value */ |
| 495 |
if (!get_contrib(rgbv, sop->ofp)) { |
| 496 |
if (!j) { |
| 497 |
fclose(sop->ofp); |
| 498 |
break; /* ignore empty file */ |
| 499 |
} |
| 500 |
if (j < mp->nbins) { |
| 501 |
sprintf(errmsg, "missing data in '%s'", |
| 502 |
oname); |
| 503 |
error(USER, errmsg); |
| 504 |
} |
| 505 |
break; |
| 506 |
} |
| 507 |
copycolor(mp->cbin[j], rgbv); |
| 508 |
} |
| 509 |
} |
| 510 |
lu_doall(&ofiletab, &myclose, NULL); /* close all files */ |
| 511 |
} |
| 512 |
|
| 513 |
|
| 514 |
/* Seek on the given output file */ |
| 515 |
static int |
| 516 |
myseeko(const LUENT *e, void *p) |
| 517 |
{ |
| 518 |
STREAMOUT *sop = (STREAMOUT *)e->data; |
| 519 |
off_t nbytes = *(off_t *)p; |
| 520 |
|
| 521 |
if (sop->reclen > 1) |
| 522 |
nbytes *= (off_t)sop->reclen; |
| 523 |
if (fseeko(sop->ofp, nbytes, SEEK_CUR) < 0) { |
| 524 |
sprintf(errmsg, "seek error on file '%s'", e->key); |
| 525 |
error(SYSTEM, errmsg); |
| 526 |
} |
| 527 |
return(0); |
| 528 |
} |
| 529 |
|
| 530 |
|
| 531 |
/* Recover output if possible */ |
| 532 |
void |
| 533 |
recover_output() |
| 534 |
{ |
| 535 |
off_t lastout = -1; |
| 536 |
int outvsiz, recsiz; |
| 537 |
char *outvfmt; |
| 538 |
int i, j; |
| 539 |
MODCONT *mp; |
| 540 |
int ofl; |
| 541 |
char oname[1024]; |
| 542 |
LUENT *oent; |
| 543 |
STREAMOUT *sop; |
| 544 |
off_t nvals; |
| 545 |
int xr, yr; |
| 546 |
|
| 547 |
switch (outfmt) { |
| 548 |
case 'a': |
| 549 |
error(USER, "cannot recover ASCII output"); |
| 550 |
return; |
| 551 |
case 'f': |
| 552 |
outvsiz = sizeof(float)*3; |
| 553 |
break; |
| 554 |
case 'd': |
| 555 |
outvsiz = sizeof(double)*3; |
| 556 |
break; |
| 557 |
case 'c': |
| 558 |
outvsiz = sizeof(COLR); |
| 559 |
break; |
| 560 |
default: |
| 561 |
error(INTERNAL, "botched output format"); |
| 562 |
return; |
| 563 |
} |
| 564 |
outvfmt = formstr(outfmt); |
| 565 |
/* check modifier outputs */ |
| 566 |
for (i = 0; i < nmods; i++) { |
| 567 |
mp = (MODCONT *)lu_find(&modconttab,modname[i])->data; |
| 568 |
if (mp->outspec == NULL) |
| 569 |
error(USER, "cannot recover from stdout"); |
| 570 |
if (mp->outspec[0] == '!') |
| 571 |
error(USER, "cannot recover from command"); |
| 572 |
for (j = 0; j < mp->nbins; j++) { /* check each bin's file */ |
| 573 |
ofl = ofname(oname, mp->outspec, mp->modname, mp->bin0+j); |
| 574 |
if (ofl < 0) |
| 575 |
error(USER, "bad output file specification"); |
| 576 |
oent = lu_find(&ofiletab, oname); |
| 577 |
if (oent->data == NULL) |
| 578 |
error(INTERNAL, "unallocated stream in recover_output()"); |
| 579 |
sop = (STREAMOUT *)oent->data; |
| 580 |
if (sop->ofp != NULL) { /* already open? */ |
| 581 |
if (ofl & OF_BIN) |
| 582 |
continue; |
| 583 |
break; |
| 584 |
} |
| 585 |
/* open output */ |
| 586 |
sop->ofp = fopen(oname, "rb+"); |
| 587 |
if (sop->ofp == NULL) { |
| 588 |
sprintf(errmsg, "missing recover file '%s'", |
| 589 |
oname); |
| 590 |
error(WARNING, errmsg); |
| 591 |
lastout = 0; |
| 592 |
break; |
| 593 |
} |
| 594 |
nvals = lseek(fileno(sop->ofp), 0, SEEK_END); |
| 595 |
if (nvals <= 0) { |
| 596 |
lastout = 0; /* empty output, quit here */ |
| 597 |
fclose(sop->ofp); |
| 598 |
break; |
| 599 |
} |
| 600 |
recsiz = outvsiz * sop->reclen; |
| 601 |
|
| 602 |
lseek(fileno(sop->ofp), 0, SEEK_SET); |
| 603 |
if (header && checkheader(sop->ofp, outvfmt, NULL) != 1) { |
| 604 |
sprintf(errmsg, "format mismatch for '%s'", |
| 605 |
oname); |
| 606 |
error(USER, errmsg); |
| 607 |
} |
| 608 |
if ((sop->reclen == 1) & (sop->xr > 0) & (sop->yr > 0) && |
| 609 |
(!fscnresolu(&xr, &yr, sop->ofp) || |
| 610 |
(xr != sop->xr) | |
| 611 |
(yr != sop->yr))) { |
| 612 |
sprintf(errmsg, "resolution mismatch for '%s'", |
| 613 |
oname); |
| 614 |
error(USER, errmsg); |
| 615 |
} |
| 616 |
nvals = (nvals - (off_t)ftell(sop->ofp)) / recsiz; |
| 617 |
if ((lastout < 0) | (nvals < lastout)) |
| 618 |
lastout = nvals; |
| 619 |
if (!(ofl & OF_BIN)) |
| 620 |
break; /* no bin separation */ |
| 621 |
} |
| 622 |
if (!lastout) { /* empty output */ |
| 623 |
error(WARNING, "no previous data to recover"); |
| 624 |
/* reclose all outputs */ |
| 625 |
lu_doall(&ofiletab, &myclose, NULL); |
| 626 |
return; |
| 627 |
} |
| 628 |
} |
| 629 |
if (lastout < 0) { |
| 630 |
error(WARNING, "no output files to recover"); |
| 631 |
return; |
| 632 |
} |
| 633 |
if (raysleft && lastout >= raysleft/accumulate) { |
| 634 |
error(WARNING, "output appears to be complete"); |
| 635 |
/* XXX should read & discard input? */ |
| 636 |
quit(0); |
| 637 |
} |
| 638 |
/* seek on all files */ |
| 639 |
nvals = lastout * outvsiz; |
| 640 |
lu_doall(&ofiletab, &myseeko, &nvals); |
| 641 |
/* skip repeated input */ |
| 642 |
lastout *= accumulate; |
| 643 |
for (nvals = 0; nvals < lastout; nvals++) { |
| 644 |
FVECT vdummy; |
| 645 |
if (getvec(vdummy) < 0 || getvec(vdummy) < 0) |
| 646 |
error(USER, "unexpected EOF on input"); |
| 647 |
} |
| 648 |
lastray = lastdone = (RNUMBER)lastout; |
| 649 |
if (raysleft) |
| 650 |
raysleft -= lastray; |
| 651 |
} |
