Overlay colorkey always painted to root window

[Michel Dänzer]

On Don, 2009-08-06 at 15:02 +0800, Yuan, Shengquan wrote:
> 
> In current Xorg graphics drivers, including SIS, intel, ATI, MGA,
> overlay color key is always painted to root window. The driver may
> call Xserver helper function xf86XVFillKeyHelper, [...]

Stop right there. :)

Since xserver 1.3, there's a new xf86XVFillKeyHelperDrawable helper
which draws to the actual drawable. This is used by the radeon driver
and it works as nicely as one can expect an overlay to work with
compositing.


-- 
Earthling Michel Dänzer           |                http://www.vmware.com
Libre software enthusiast         |          Debian, X and DRI developer