[Xorg-driver-geode] Rendering in geode
FrankR.Huang at amd.com
Sat Jun 12 02:50:44 PDT 2010
Resend it. Forget the subject.
From: Huang, FrankR
Sent: 2010?6?12? 17:43
To: 'jonathan.morton at movial.com'
Cc: 'xorg-devel at lists.x.org'; xorg-driver-geode at lists.x.org
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:
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
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).
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