| 169 |
|
checkhead(line) /* deal with line from header */ |
| 170 |
|
char *line; |
| 171 |
|
{ |
| 172 |
< |
if (!strncmp(line, "EXPOSURE=", 9)) |
| 173 |
< |
exposure *= atof(line+9); |
| 172 |
> |
if (isexpos(line)) |
| 173 |
> |
exposure *= exposval(line); |
| 174 |
|
} |
| 175 |
|
|
| 176 |
|
|
| 400 |
|
/* read scanline */ |
| 401 |
|
getscan(y); |
| 402 |
|
/* convert scanline */ |
| 403 |
< |
normcolrs(scanline, xmax); |
| 403 |
> |
normcolrs(scanline, xmax, 0); |
| 404 |
|
for (i = 0; i < xmax; i++) { |
| 405 |
|
l3[i].r = scanline[i][RED]; |
| 406 |
|
l3[i].g = scanline[i][GRN]; |
| 515 |
|
register int i, val; |
| 516 |
|
|
| 517 |
|
for (i = 0; i < 256; i++) { |
| 518 |
< |
val = pow(i/256.0, 1.0/GAMMA) * 256.0; |
| 518 |
> |
val = pow((i+0.5)/256.0, 1.0/GAMMA) * 256.0; |
| 519 |
|
map[0][i] = map[1][i] = map[2][i] = val; |
| 520 |
|
} |
| 521 |
|
} |
