[PATCH xserver] dri2: Don't send so many needless invalidate events

[Michel Dänzer]

On Fre, 2011-05-06 at 18:18 +0300, ville.syrjala at nokia.com wrote: 
> From: Ville Syrjälä <ville.syrjala at nokia.com>
> 
> Only send invalidate events for drawables if some client has requested
> some buffers.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at nokia.com>

Reviewed-by: Michel Dänzer <michel at daenzer.net>


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