Here is a patch for some graphics corruption issues I discovered since
this commit:

commit 1cc2c2c44ac72460cf1c4e6bdc13c612235809c9
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Wed Apr 14 11:18:25 2010 +0100

    i830: Use pixman_blt directly for performing the in-memory copy
    
    In order to avoid an infinite recursion after enabling CopyArea to use
    the put_image acceleration to either stream a blit or to copy in-place,
    we cannot call CopyArea from put_image for the fallback path. Instead,
    we can simply call pixman_blt directly, which coincidentally is a tiny
    bit faster.
    
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>


I've also attached a cosmetic clean-up in the same area.

-- 
Peter Clifton

Electrical Engineering Division,
Engineering Department,
University of Cambridge,
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