| 634 |
|
if (mybuf == NULL) |
| 635 |
|
mybuf = (char *)bmalloc(BUFSIZ+8); |
| 636 |
|
setbuf(ambfp, mybuf); |
| 637 |
+ |
retry: |
| 638 |
|
if (cre8) { /* new file */ |
| 639 |
|
newheader("RADIANCE", ambfp); |
| 640 |
|
fprintf(ambfp, "%s -av %g %g %g -aw %d -ab %d -aa %g ", |
| 660 |
|
fputformat(AMBFMT, ambfp); |
| 661 |
|
fputc('\n', ambfp); |
| 662 |
|
putambmagic(ambfp); |
| 663 |
< |
} else if (getheader(ambfp, amb_headline, NULL) < 0 || !hasambmagic(ambfp)) |
| 663 |
> |
} else if (getheader(ambfp, amb_headline, NULL) < 0 || !hasambmagic(ambfp)) { |
| 664 |
> |
#ifndef F_SETLKW |
| 665 |
> |
static int ntries = 0; |
| 666 |
> |
if (++ntries < 4 && ftell(ambfp) == 0) { |
| 667 |
> |
sleep(2); |
| 668 |
> |
goto retry; |
| 669 |
> |
} |
| 670 |
> |
#endif |
| 671 |
|
error(USER, "bad/incompatible ambient file"); |
| 672 |
< |
|
| 672 |
> |
} |
| 673 |
|
if ((AMB_CNDX != CNDX) | (AMB_WLPART != WLPART)) { |
| 674 |
|
if (setspectrsamp(AMB_CNDX, AMB_WLPART) < 0) |
| 675 |
|
error(USER, "bad wavelength sampling in ambient file"); |
