[Mesa-dev] [PATCH 13/17] swrast: Drop the global mapping of buffers across glReadPixels().

[Dave Airlie]

On Tue, Nov 1, 2011 at 11:17 PM, Eric Anholt <eric at anholt.net> wrote:
> Reviewed-by: Brian Paul <brianp at vmware.com>

Just as an aside and maybe some way to help me figure out why

this break piglit windowoverlap test on r100, specifically the sub
window drawing stops working.

I bisected to this and its definitely it, I suspect its missing
flushes or something in the radeon driver, ideas on the back of a
postcard.

Dave.