| 646 |
|
int y; |
| 647 |
|
register rgbpixel *l3; |
| 648 |
|
{ |
| 649 |
< |
register BYTE *l4; |
| 650 |
< |
register int shift, c; |
| 651 |
< |
int i; |
| 652 |
< |
|
| 649 |
> |
register int i; |
| 650 |
> |
/* read scanline */ |
| 651 |
|
if (getscan(y) < 0) |
| 652 |
|
quiterr("cannot seek for picreadline"); |
| 653 |
|
/* convert scanline */ |
| 654 |
< |
for (l4=scanline[0], i=xmax; i--; l4+=4, l3++) { |
| 655 |
< |
shift = l4[EXP] - COLXS + scale; |
| 656 |
< |
if (shift >= 8) { |
| 657 |
< |
l3->r = l3->g = l3->b = 255; |
| 658 |
< |
} else if (shift <= -8) { |
| 661 |
< |
l3->r = l3->g = l3->b = 0; |
| 662 |
< |
} else if (shift > 0) { |
| 663 |
< |
c = l4[RED] << shift; |
| 664 |
< |
l3->r = c > 255 ? 255 : c; |
| 665 |
< |
c = l4[GRN] << shift; |
| 666 |
< |
l3->g = c > 255 ? 255 : c; |
| 667 |
< |
c = l4[BLU] << shift; |
| 668 |
< |
l3->b = c > 255 ? 255 : c; |
| 669 |
< |
} else if (shift < 0) { |
| 670 |
< |
l3->r = l4[RED] >> -shift; |
| 671 |
< |
l3->g = l4[GRN] >> -shift; |
| 672 |
< |
l3->b = l4[BLU] >> -shift; |
| 673 |
< |
} else { |
| 674 |
< |
l3->r = l4[RED]; |
| 675 |
< |
l3->g = l4[GRN]; |
| 676 |
< |
l3->b = l4[BLU]; |
| 677 |
< |
} |
| 654 |
> |
normcolrs(scanline, xmax); |
| 655 |
> |
for (i = 0; i < xmax; i++) { |
| 656 |
> |
l3[i].r = scanline[i][RED]; |
| 657 |
> |
l3[i].g = scanline[i][GRN]; |
| 658 |
> |
l3[i].b = scanline[i][BLU]; |
| 659 |
|
} |
| 660 |
|
} |
| 661 |
|
|
