MaskBlt implementation.
Dimitrie O. Paun
dpaun at rogers.com
Wed Apr 9 00:53:07 CDT 2003
On April 9, 2003 01:22 am, Dan Kegel wrote:
> How 'bout
>
> BYTE SwapROP3_SrcDst(BYTE bRop3)
> {
> /* swap 1,2 bit and 5,6 bit */
> BYTE bits44 = (bRop3 & 0x44) >> 1;
> BYTE bits22 = (bRop3 & 0x22) << 1;
> return (bRop3 & 0x99) | bits22 | bits44;
> }
Nice! At which point we might as well inline it all:
inline BYTE SwapROP3_SrcDst(BYTE bRop3)
{
return (bRop3 & 0x99) | ((bRop3 & 0x22) << 1) | ((bRop3 & 0x44) >> 1);
}
:)
--
Dimi.
More information about the wine-devel
mailing list