xf86-video-intel: 2 commits - src/i830_dri.c src/i830.h src/i830_uxa.c src/i915_render.c

[Michel Dänzer]

On Sam, 2010-05-29 at 02:42 -0700, Chris Wilson wrote: 
> 
> commit 44d45d3fa56f121ce89ffe5b28beb48be01a95df
> Author: Chris Wilson <chris at chris-wilson.co.uk>
> Date:   Sat May 29 10:39:28 2010 +0100
> 
>     dri: Use size from backing pixmap when creating buffers.
>     
>     This avoid using the garbage values stored in the Screen drawable,

What 'screen drawable' is this referring to, and why does it have
'garbage' dimensions? Sounds like this works around a problem that
should rather be fixed.

> instead of the true values which are only maintained in its backing
>     pixmap.

Using the backing pixmap dimensions for this is not desirable. In
particular, it means that the DRI2 buffers of non-redirected windows
always have the same size as the screen. But even for redirected windows
it wastes some graphics memory with a re-parenting window manager, that
is if it doesn't break in various ways due to the top left corner of the
DRI2 buffers no longer corresponding to the top left corner of the
window.


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