| 1 |
< |
/* Copyright (c) 1991 Regents of the University of California */ |
| 1 |
> |
/* Copyright (c) 1994 Regents of the University of California */ |
| 2 |
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| 3 |
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#ifndef lint |
| 4 |
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static char SCCSid[] = "$SunId$ LBL"; |
| 12 |
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| 13 |
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#include "standard.h" |
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|
| 15 |
– |
#include <fcntl.h> |
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– |
|
| 15 |
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#include <ctype.h> |
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|
| 17 |
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#include "view.h" |
| 20 |
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|
| 21 |
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#include "resolu.h" |
| 22 |
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|
| 25 |
– |
#ifndef BSD |
| 26 |
– |
#define vfork fork |
| 27 |
– |
#endif |
| 28 |
– |
|
| 23 |
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#define pscan(y) (ourpict+(y)*hresolu) |
| 24 |
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#define zscan(y) (ourzbuf+(y)*hresolu) |
| 25 |
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|
| 28 |
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|
| 29 |
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#define PACKSIZ 256 /* max. calculation packet size */ |
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|
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< |
#define RTCOM "rtrace -h- -ovl -fff" |
| 31 |
> |
#define RTCOM "rtrace -h- -ovl -fff " |
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|
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#define ABS(x) ((x)>0?(x):-(x)) |
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|
| 35 |
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struct position {int x,y; float z;}; |
| 36 |
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|
| 37 |
+ |
#define NSTEPS 64 /* number steps in overlap prescan */ |
| 38 |
+ |
#define MINSTEP 4 /* minimum worthwhile preview step */ |
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+ |
|
| 40 |
+ |
struct bound {int min,max;}; |
| 41 |
+ |
|
| 42 |
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VIEW ourview = STDVIEW; /* desired view */ |
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int hresolu = 512; /* horizontal resolution */ |
| 44 |
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int vresolu = 512; /* vertical resolution */ |
| 160 |
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vresolu = atoi(argv[++i]); |
| 161 |
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break; |
| 162 |
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case 'p': /* pixel aspect */ |
| 163 |
< |
check(2,"f"); |
| 163 |
> |
if (argv[i][2] != 'a') |
| 164 |
> |
goto badopt; |
| 165 |
> |
check(3,"f"); |
| 166 |
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pixaspect = atof(argv[++i]); |
| 167 |
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break; |
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case 'v': /* view file */ |
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goto badopt; |
| 171 |
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check(3,"s"); |
| 172 |
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gotvfile = viewfile(argv[++i], &ourview, 0, 0); |
| 173 |
< |
if (gotvfile < 0) { |
| 174 |
< |
perror(argv[i]); |
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< |
exit(1); |
| 175 |
< |
} else if (gotvfile == 0) { |
| 173 |
> |
if (gotvfile < 0) |
| 174 |
> |
syserror(argv[i]); |
| 175 |
> |
else if (gotvfile == 0) { |
| 176 |
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fprintf(stderr, "%s: bad view file\n", |
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argv[i]); |
| 178 |
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exit(1); |
| 191 |
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if (fillsamp == 1) |
| 192 |
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fillo &= ~F_BACK; |
| 193 |
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/* set view */ |
| 194 |
< |
if (err = setview(&ourview)) { |
| 194 |
> |
if ((err = setview(&ourview)) != NULL) { |
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fprintf(stderr, "%s: %s\n", progname, err); |
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exit(1); |
| 197 |
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} |
| 198 |
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normaspect(viewaspect(&ourview), &pixaspect, &hresolu, &vresolu); |
| 199 |
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/* allocate frame */ |
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< |
ourpict = (COLR *)malloc(hresolu*vresolu*sizeof(COLR)); |
| 201 |
< |
ourzbuf = (float *)calloc(hresolu*vresolu,sizeof(float)); |
| 200 |
> |
ourpict = (COLR *)bmalloc(hresolu*vresolu*sizeof(COLR)); |
| 201 |
> |
ourzbuf = (float *)bmalloc(hresolu*vresolu*sizeof(float)); |
| 202 |
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if (ourpict == NULL || ourzbuf == NULL) |
| 203 |
< |
syserror(); |
| 203 |
> |
syserror(progname); |
| 204 |
> |
bzero((char *)ourzbuf, hresolu*vresolu*sizeof(float)); |
| 205 |
> |
/* new header */ |
| 206 |
> |
newheader("RADIANCE", stdout); |
| 207 |
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/* get input */ |
| 208 |
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for ( ; i < argc; i += 2) |
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addpicture(argv[i], argv[i+1]); |
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fillpicture(fillfunc); |
| 215 |
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/* close calculation */ |
| 216 |
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caldone(); |
| 217 |
+ |
/* aft clipping */ |
| 218 |
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clipaft(); |
| 219 |
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/* add to header */ |
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printargs(argc, argv, stdout); |
| 221 |
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if (gotvfile) { |
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headline(s) /* process header string */ |
| 249 |
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char *s; |
| 250 |
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{ |
| 246 |
– |
static char *altname[] = {VIEWSTR,"rpict","rview","pinterp",NULL}; |
| 247 |
– |
register char **an; |
| 251 |
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char fmt[32]; |
| 252 |
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|
| 253 |
< |
if (isformat(s)) { |
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< |
formatval(fmt, s); |
| 253 |
> |
if (isheadid(s)) |
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> |
return; |
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> |
if (formatval(fmt, s)) { |
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wrongformat = strcmp(fmt, COLRFMT); |
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return; |
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} |
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theirexp *= exposval(s); |
| 264 |
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return; |
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} |
| 266 |
< |
for (an = altname; *an != NULL; an++) |
| 267 |
< |
if (!strncmp(*an, s, strlen(*an))) { |
| 264 |
< |
if (sscanview(&theirview, s+strlen(*an)) > 0) |
| 265 |
< |
gotview++; |
| 266 |
< |
break; |
| 267 |
< |
} |
| 266 |
> |
if (isview(s) && sscanview(&theirview, s) > 0) |
| 267 |
> |
gotview++; |
| 268 |
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} |
| 269 |
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|
| 270 |
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|
| 277 |
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COLR *scanin; |
| 278 |
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float *zin; |
| 279 |
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struct position *plast; |
| 280 |
+ |
struct bound *xlim, ylim; |
| 281 |
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int y; |
| 282 |
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/* open picture file */ |
| 283 |
< |
if ((pfp = fopen(pfile, "r")) == NULL) { |
| 284 |
< |
perror(pfile); |
| 284 |
< |
exit(1); |
| 285 |
< |
} |
| 283 |
> |
if ((pfp = fopen(pfile, "r")) == NULL) |
| 284 |
> |
syserror(pfile); |
| 285 |
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/* get header with exposure and view */ |
| 286 |
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theirexp = 1.0; |
| 287 |
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gotview = 0; |
| 301 |
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} |
| 302 |
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/* compute transformation */ |
| 303 |
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hasmatrix = pixform(theirs2ours, &theirview, &ourview); |
| 305 |
– |
/* allocate scanlines */ |
| 306 |
– |
scanin = (COLR *)malloc(scanlen(&tresolu)*sizeof(COLR)); |
| 307 |
– |
zin = (float *)malloc(scanlen(&tresolu)*sizeof(float)); |
| 308 |
– |
plast = (struct position *)calloc(scanlen(&tresolu), |
| 309 |
– |
sizeof(struct position)); |
| 310 |
– |
if (scanin == NULL || zin == NULL || plast == NULL) |
| 311 |
– |
syserror(); |
| 304 |
|
/* get z specification or file */ |
| 305 |
+ |
zin = (float *)malloc(scanlen(&tresolu)*sizeof(float)); |
| 306 |
+ |
if (zin == NULL) |
| 307 |
+ |
syserror(progname); |
| 308 |
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if ((zfd = open(zspec, O_RDONLY)) == -1) { |
| 309 |
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double zvalue; |
| 310 |
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register int x; |
| 311 |
< |
if (!isfloat(zspec) || (zvalue = atof(zspec)) <= 0.0) { |
| 312 |
< |
perror(zspec); |
| 318 |
< |
exit(1); |
| 319 |
< |
} |
| 311 |
> |
if (!isfloat(zspec) || (zvalue = atof(zspec)) <= 0.0) |
| 312 |
> |
syserror(zspec); |
| 313 |
|
for (x = scanlen(&tresolu); x-- > 0; ) |
| 314 |
|
zin[x] = zvalue; |
| 315 |
|
} |
| 316 |
< |
/* load image */ |
| 317 |
< |
for (y = 0; y < numscans(&tresolu); y++) { |
| 316 |
> |
/* compute transferrable perimeter */ |
| 317 |
> |
xlim = (struct bound *)malloc(numscans(&tresolu)*sizeof(struct bound)); |
| 318 |
> |
if (xlim == NULL) |
| 319 |
> |
syserror(progname); |
| 320 |
> |
if (!getperim(xlim, &ylim, zin, zfd)) { /* overlapping area? */ |
| 321 |
> |
free((char *)zin); |
| 322 |
> |
free((char *)xlim); |
| 323 |
> |
if (zfd != -1) |
| 324 |
> |
close(zfd); |
| 325 |
> |
fclose(pfp); |
| 326 |
> |
return; |
| 327 |
> |
} |
| 328 |
> |
/* allocate scanlines */ |
| 329 |
> |
scanin = (COLR *)malloc(scanlen(&tresolu)*sizeof(COLR)); |
| 330 |
> |
plast = (struct position *)calloc(scanlen(&tresolu), |
| 331 |
> |
sizeof(struct position)); |
| 332 |
> |
if (scanin == NULL | plast == NULL) |
| 333 |
> |
syserror(progname); |
| 334 |
> |
/* skip to starting point */ |
| 335 |
> |
for (y = 0; y < ylim.min; y++) |
| 336 |
|
if (freadcolrs(scanin, scanlen(&tresolu), pfp) < 0) { |
| 337 |
|
fprintf(stderr, "%s: read error\n", pfile); |
| 338 |
|
exit(1); |
| 339 |
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} |
| 340 |
< |
if (zfd != -1 && read(zfd,(char *)zin, |
| 341 |
< |
scanlen(&tresolu)*sizeof(float)) |
| 342 |
< |
< scanlen(&tresolu)*sizeof(float)) { |
| 343 |
< |
fprintf(stderr, "%s: read error\n", zspec); |
| 340 |
> |
if (zfd != -1 && lseek(zfd, |
| 341 |
> |
(long)ylim.min*scanlen(&tresolu)*sizeof(float), 0) < 0) |
| 342 |
> |
syserror(zspec); |
| 343 |
> |
/* load image */ |
| 344 |
> |
for (y = ylim.min; y <= ylim.max; y++) { |
| 345 |
> |
if (freadcolrs(scanin, scanlen(&tresolu), pfp) < 0) { |
| 346 |
> |
fprintf(stderr, "%s: read error\n", pfile); |
| 347 |
|
exit(1); |
| 348 |
|
} |
| 349 |
< |
addscanline(y, scanin, zin, plast); |
| 349 |
> |
if (zfd != -1 && read(zfd, (char *)zin, |
| 350 |
> |
scanlen(&tresolu)*sizeof(float)) |
| 351 |
> |
< scanlen(&tresolu)*sizeof(float)) |
| 352 |
> |
syserror(zspec); |
| 353 |
> |
addscanline(xlim+y, y, scanin, zin, plast); |
| 354 |
|
} |
| 355 |
|
/* clean up */ |
| 356 |
+ |
free((char *)xlim); |
| 357 |
|
free((char *)scanin); |
| 358 |
|
free((char *)zin); |
| 359 |
|
free((char *)plast); |
| 404 |
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} |
| 405 |
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|
| 406 |
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|
| 407 |
< |
addscanline(y, pline, zline, lasty) /* add scanline to output */ |
| 407 |
> |
addscanline(xl, y, pline, zline, lasty) /* add scanline to output */ |
| 408 |
> |
struct bound *xl; |
| 409 |
|
int y; |
| 410 |
|
COLR *pline; |
| 411 |
|
float *zline; |
| 412 |
|
struct position *lasty; /* input/output */ |
| 413 |
|
{ |
| 394 |
– |
extern double sqrt(); |
| 414 |
|
FVECT pos; |
| 415 |
|
struct position lastx, newpos; |
| 416 |
|
register int x; |
| 417 |
|
|
| 418 |
|
lastx.z = 0; |
| 419 |
< |
for (x = scanlen(&tresolu); x-- > 0; ) { |
| 419 |
> |
for (x = xl->max; x >= xl->min; x--) { |
| 420 |
|
pix2loc(pos, &tresolu, x, y); |
| 421 |
|
pos[2] = zline[x]; |
| 422 |
|
if (movepixel(pos) < 0) { |
| 496 |
|
} |
| 497 |
|
|
| 498 |
|
|
| 499 |
+ |
getperim(xl, yl, zline, zfd) /* compute overlapping image area */ |
| 500 |
+ |
register struct bound *xl; |
| 501 |
+ |
struct bound *yl; |
| 502 |
+ |
float *zline; |
| 503 |
+ |
int zfd; |
| 504 |
+ |
{ |
| 505 |
+ |
int step; |
| 506 |
+ |
FVECT pos; |
| 507 |
+ |
register int x, y; |
| 508 |
+ |
/* set up step size */ |
| 509 |
+ |
if (scanlen(&tresolu) < numscans(&tresolu)) |
| 510 |
+ |
step = scanlen(&tresolu)/NSTEPS; |
| 511 |
+ |
else |
| 512 |
+ |
step = numscans(&tresolu)/NSTEPS; |
| 513 |
+ |
if (step < MINSTEP) { /* not worth cropping? */ |
| 514 |
+ |
yl->min = 0; |
| 515 |
+ |
yl->max = numscans(&tresolu) - 1; |
| 516 |
+ |
x = scanlen(&tresolu) - 1; |
| 517 |
+ |
for (y = numscans(&tresolu); y--; ) { |
| 518 |
+ |
xl[y].min = 0; |
| 519 |
+ |
xl[y].max = x; |
| 520 |
+ |
} |
| 521 |
+ |
return(1); |
| 522 |
+ |
} |
| 523 |
+ |
yl->min = 32000; yl->max = 0; /* search for points on image */ |
| 524 |
+ |
for (y = step - 1; y < numscans(&tresolu); y += step) { |
| 525 |
+ |
if (zfd != -1) { |
| 526 |
+ |
if (lseek(zfd, (long)y*scanlen(&tresolu)*sizeof(float), |
| 527 |
+ |
0) < 0) |
| 528 |
+ |
syserror("lseek"); |
| 529 |
+ |
if (read(zfd, (char *)zline, |
| 530 |
+ |
scanlen(&tresolu)*sizeof(float)) |
| 531 |
+ |
< scanlen(&tresolu)*sizeof(float)) |
| 532 |
+ |
syserror("read"); |
| 533 |
+ |
} |
| 534 |
+ |
xl[y].min = 32000; xl[y].max = 0; /* x max */ |
| 535 |
+ |
for (x = scanlen(&tresolu); (x -= step) > 0; ) { |
| 536 |
+ |
pix2loc(pos, &tresolu, x, y); |
| 537 |
+ |
pos[2] = zline[x]; |
| 538 |
+ |
if (movepixel(pos) == 0 && pos[0] >= 0 && |
| 539 |
+ |
pos[0] < 1 && pos[1] >= 0 && |
| 540 |
+ |
pos[1] < 1) { |
| 541 |
+ |
xl[y].max = x + step - 1; |
| 542 |
+ |
xl[y].min = x - step + 1; /* x min */ |
| 543 |
+ |
if (xl[y].min < 0) |
| 544 |
+ |
xl[y].min = 0; |
| 545 |
+ |
for (x = step - 1; x < xl[y].max; x += step) { |
| 546 |
+ |
pix2loc(pos, &tresolu, x, y); |
| 547 |
+ |
pos[2] = zline[x]; |
| 548 |
+ |
if (movepixel(pos) == 0 && |
| 549 |
+ |
pos[0] >= 0 && |
| 550 |
+ |
pos[0] < 1 && |
| 551 |
+ |
pos[1] >= 0 && |
| 552 |
+ |
pos[1] < 1) { |
| 553 |
+ |
xl[y].min = x - step + 1; |
| 554 |
+ |
break; |
| 555 |
+ |
} |
| 556 |
+ |
} |
| 557 |
+ |
if (y < yl->min) /* y limits */ |
| 558 |
+ |
yl->min = y - step + 1; |
| 559 |
+ |
yl->max = y + step - 1; |
| 560 |
+ |
break; |
| 561 |
+ |
} |
| 562 |
+ |
} |
| 563 |
+ |
/* fill in between */ |
| 564 |
+ |
if (xl[y].min < xl[y-step].min) |
| 565 |
+ |
xl[y-1].min = xl[y].min; |
| 566 |
+ |
else |
| 567 |
+ |
xl[y-1].min = xl[y-step].min; |
| 568 |
+ |
if (xl[y].max > xl[y-step].max) |
| 569 |
+ |
xl[y-1].max = xl[y].max; |
| 570 |
+ |
else |
| 571 |
+ |
xl[y-1].max = xl[y-step].max; |
| 572 |
+ |
for (x = 2; x < step; x++) |
| 573 |
+ |
copystruct(xl+y-x, xl+y-1); |
| 574 |
+ |
} |
| 575 |
+ |
if (yl->max >= numscans(&tresolu)) |
| 576 |
+ |
yl->max = numscans(&tresolu) - 1; |
| 577 |
+ |
for (x = numscans(&tresolu) - 1; x > y; x--) /* fill bottom rows */ |
| 578 |
+ |
copystruct(xl+x, xl+y); |
| 579 |
+ |
return(yl->max >= yl->min); |
| 580 |
+ |
} |
| 581 |
+ |
|
| 582 |
+ |
|
| 583 |
|
movepixel(pos) /* reposition image point */ |
| 584 |
|
FVECT pos; |
| 585 |
|
{ |
| 586 |
+ |
double d0, d1; |
| 587 |
|
FVECT pt, direc; |
| 588 |
|
|
| 589 |
|
if (pos[2] <= 0) /* empty pixel */ |
| 590 |
|
return(-1); |
| 591 |
+ |
if (normdist && theirview.type == VT_PER) { /* adjust distance */ |
| 592 |
+ |
d0 = pos[0] + theirview.hoff - .5; |
| 593 |
+ |
d1 = pos[1] + theirview.voff - .5; |
| 594 |
+ |
pos[2] /= sqrt(1. + d0*d0*theirview.hn2 + d1*d1*theirview.vn2); |
| 595 |
+ |
} |
| 596 |
|
if (hasmatrix) { |
| 597 |
|
pos[0] += theirview.hoff - .5; |
| 598 |
|
pos[1] += theirview.voff - .5; |
| 599 |
|
if (theirview.type == VT_PER) { |
| 491 |
– |
if (normdist) /* adjust for eye-ray distance */ |
| 492 |
– |
pos[2] /= sqrt( 1. |
| 493 |
– |
+ pos[0]*pos[0]*theirview.hn2 |
| 494 |
– |
+ pos[1]*pos[1]*theirview.vn2 ); |
| 600 |
|
pos[0] *= pos[2]; |
| 601 |
|
pos[1] *= pos[2]; |
| 602 |
|
} |
| 611 |
|
pos[1] += .5 - ourview.voff; |
| 612 |
|
return(0); |
| 613 |
|
} |
| 614 |
< |
if (viewray(pt, direc, &theirview, pos[0], pos[1]) < 0) |
| 614 |
> |
if (viewray(pt, direc, &theirview, pos[0], pos[1]) < -FTINY) |
| 615 |
|
return(-1); |
| 616 |
|
pt[0] += direc[0]*pos[2]; |
| 617 |
|
pt[1] += direc[1]*pos[2]; |
| 633 |
|
/* get back buffer */ |
| 634 |
|
yback = (int *)malloc(hresolu*sizeof(int)); |
| 635 |
|
if (yback == NULL) |
| 636 |
< |
syserror(); |
| 636 |
> |
syserror(progname); |
| 637 |
|
for (x = 0; x < hresolu; x++) |
| 638 |
|
yback[x] = -2; |
| 639 |
|
/* |
| 730 |
|
} |
| 731 |
|
|
| 732 |
|
|
| 733 |
+ |
clipaft() /* perform aft clipping as indicated */ |
| 734 |
+ |
{ |
| 735 |
+ |
register int x, y; |
| 736 |
+ |
double tstdist; |
| 737 |
+ |
double yzn2, vx; |
| 738 |
+ |
|
| 739 |
+ |
if (ourview.vaft <= FTINY) |
| 740 |
+ |
return; |
| 741 |
+ |
tstdist = ourview.vaft; |
| 742 |
+ |
for (y = 0; y < vresolu; y++) { |
| 743 |
+ |
if (ourview.type == VT_PER) { /* adjust distance */ |
| 744 |
+ |
yzn2 = (y+.5)/vresolu + ourview.voff - .5; |
| 745 |
+ |
yzn2 = 1. + yzn2*yzn2*ourview.vn2; |
| 746 |
+ |
tstdist = ourview.vaft * sqrt(yzn2); |
| 747 |
+ |
} |
| 748 |
+ |
for (x = 0; x < hresolu; x++) |
| 749 |
+ |
if (zscan(y)[x] > tstdist) { |
| 750 |
+ |
if (ourview.type == VT_PER) { |
| 751 |
+ |
vx = (x+.5)/hresolu + ourview.hoff - .5; |
| 752 |
+ |
if (zscan(y)[x] <= ourview.vaft * |
| 753 |
+ |
sqrt(vx*vx*ourview.hn2 + yzn2)) |
| 754 |
+ |
continue; |
| 755 |
+ |
} |
| 756 |
+ |
bzero(pscan(y)[x], sizeof(COLR)); |
| 757 |
+ |
zscan(y)[x] = 0.0; |
| 758 |
+ |
} |
| 759 |
+ |
} |
| 760 |
+ |
} |
| 761 |
+ |
|
| 762 |
+ |
|
| 763 |
|
writepicture() /* write out picture */ |
| 764 |
|
{ |
| 765 |
|
int y; |
| 767 |
|
fprtresolu(hresolu, vresolu, stdout); |
| 768 |
|
for (y = vresolu-1; y >= 0; y--) |
| 769 |
|
if (fwritecolrs(pscan(y), hresolu, stdout) < 0) |
| 770 |
< |
syserror(); |
| 770 |
> |
syserror(progname); |
| 771 |
|
} |
| 772 |
|
|
| 773 |
|
|
| 774 |
|
writedistance(fname) /* write out z file */ |
| 775 |
|
char *fname; |
| 776 |
|
{ |
| 642 |
– |
extern double sqrt(); |
| 777 |
|
int donorm = normdist && ourview.type == VT_PER; |
| 778 |
|
int fd; |
| 779 |
|
int y; |
| 780 |
|
float *zout; |
| 781 |
|
|
| 782 |
< |
if ((fd = open(fname, O_WRONLY|O_CREAT|O_TRUNC, 0666)) == -1) { |
| 783 |
< |
perror(fname); |
| 650 |
< |
exit(1); |
| 651 |
< |
} |
| 782 |
> |
if ((fd = open(fname, O_WRONLY|O_CREAT|O_TRUNC, 0666)) == -1) |
| 783 |
> |
syserror(fname); |
| 784 |
|
if (donorm |
| 785 |
|
&& (zout = (float *)malloc(hresolu*sizeof(float))) == NULL) |
| 786 |
< |
syserror(); |
| 786 |
> |
syserror(progname); |
| 787 |
|
for (y = vresolu-1; y >= 0; y--) { |
| 788 |
|
if (donorm) { |
| 789 |
|
double vx, yzn2; |
| 798 |
|
} else |
| 799 |
|
zout = zscan(y); |
| 800 |
|
if (write(fd, (char *)zout, hresolu*sizeof(float)) |
| 801 |
< |
< hresolu*sizeof(float)) { |
| 802 |
< |
perror(fname); |
| 671 |
< |
exit(1); |
| 672 |
< |
} |
| 801 |
> |
< hresolu*sizeof(float)) |
| 802 |
> |
syserror(fname); |
| 803 |
|
} |
| 804 |
|
if (donorm) |
| 805 |
|
free((char *)zout); |
| 845 |
|
cp = combuf; |
| 846 |
|
wp = argv; |
| 847 |
|
for ( ; ; ) { |
| 848 |
< |
while (isspace(*cp)) cp++; |
| 849 |
< |
if (!*cp) break; |
| 850 |
< |
*wp++ = cp; |
| 851 |
< |
while (!isspace(*cp)) |
| 852 |
< |
if (!*cp++) goto done; |
| 853 |
< |
*cp++ = '\0'; |
| 848 |
> |
while (isspace(*cp)) /* nullify spaces */ |
| 849 |
> |
*cp++ = '\0'; |
| 850 |
> |
if (!*cp) /* all done? */ |
| 851 |
> |
break; |
| 852 |
> |
*wp++ = cp; /* add argument to list */ |
| 853 |
> |
while (*++cp && !isspace(*cp)) |
| 854 |
> |
; |
| 855 |
|
} |
| 725 |
– |
done: |
| 856 |
|
*wp = NULL; |
| 857 |
|
/* start process */ |
| 858 |
|
if ((rval = open_process(PDesc, argv)) < 0) |
| 859 |
< |
syserror(); |
| 859 |
> |
syserror(progname); |
| 860 |
|
if (rval == 0) { |
| 861 |
|
fprintf(stderr, "%s: command not found\n", argv[0]); |
| 862 |
|
exit(1); |
| 897 |
|
register float *fbp; |
| 898 |
|
register int i; |
| 899 |
|
|
| 900 |
+ |
if (queuesiz == 0) |
| 901 |
+ |
return; |
| 902 |
|
fbp = fbuf; |
| 903 |
|
for (i = 0; i < queuesiz; i++) { |
| 904 |
|
viewray(orig, dir, &ourview, |
| 932 |
|
} |
| 933 |
|
|
| 934 |
|
|
| 935 |
< |
syserror() /* report error and exit */ |
| 935 |
> |
syserror(s) /* report error and exit */ |
| 936 |
> |
char *s; |
| 937 |
|
{ |
| 938 |
< |
perror(progname); |
| 938 |
> |
perror(s); |
| 939 |
|
exit(1); |
| 940 |
|
} |