[Alex Deucher]

On Sat, Jun 12, 2010 at 5:43 AM, Huang, FrankR <FrankR.Huang at amd.com> wrote:
> Morton,
>
>        After I fix the PictOpOver operation, the geode still has
> another rendering issue. That is also serious. I attached a picture,
> please take a look. I have not find the root cause.
>        I use this simple gtk program to reproduce. When I move the
> mouse on the button, some green add-on region is appearing. You can see
> the green part on scissor button.
>        I trace the code and found that when I move the mouse on the
> button, the driver will do two rendering operation(lx_do_composite). The
> format of these two operations are:
>
>        1)pSrc : PICT_a8r8g8b8     pMsk: 0      pDst: PICT_r5g6b5
>        2)pSrc : PICT_a8r8g8b8     pMsk: PICT_a8        pDst:
> PICT_r5g6b5
>
>        When I note the 1) condition handle in geode driver code,
> everything is ok. No add-on region is appeared again. But I am sure our
> driver can handle the 1) condition correctly, I use rendercheck to test
> that case.
>        At the same time, when I move the mouse on the button, other
> rendering is done by Xserver because our driver can not handle all the
> rendering condition. That is due to our limited rendering function. I am
> not sure if it is caused by this mixed rendering result( our driver and
> pixman rendering together).
>

Make sure you are properly flushing the caches in your drawing engine?

Alex

>
> Thanks,
> Frank
>
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