| 48 |
|
return(-1); |
| 49 |
|
} |
| 50 |
|
/* discard header */ |
| 51 |
< |
getheader(input, NULL); |
| 51 |
> |
if (checkheader(input, COLRFMT, NULL) < 0) { |
| 52 |
> |
fprintf(stderr, "%s: not a Radiance picture\n", fname); |
| 53 |
> |
return(-1); |
| 54 |
> |
} |
| 55 |
|
/* get picture dimensions */ |
| 56 |
|
if (fgetresolu(&xres, &yres, input) != (YMAJOR|YDECR)) { |
| 57 |
|
fprintf(stderr, "%s: bad picture size\n", fname); |
| 70 |
|
for (i = yres-1; i >= 0; i--) { |
| 71 |
|
if (freadcolrs(scanline, xres, input) < 0) |
| 72 |
|
return(-1); |
| 73 |
< |
normscan(scanline, xres); |
| 73 |
> |
normcolrs(scanline, xres, 0); |
| 74 |
|
plotscan(scanline, xres, i); |
| 75 |
|
} |
| 76 |
|
|
| 79 |
|
fclose(input); |
| 80 |
|
|
| 81 |
|
return(0); |
| 79 |
– |
} |
| 80 |
– |
|
| 81 |
– |
|
| 82 |
– |
normscan(scan, len) /* normalize a scanline */ |
| 83 |
– |
register COLR scan[]; |
| 84 |
– |
int len; |
| 85 |
– |
{ |
| 86 |
– |
register int i; |
| 87 |
– |
|
| 88 |
– |
for (i = 0; i < len; i++) |
| 89 |
– |
colr_norm(scan[i], scan[i]); |
| 82 |
|
} |
| 83 |
|
|
| 84 |
|
|
