[Bug 28341] Flickering screen in Neverball on drm-radeon-testing

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=28341

--- Comment #24 from Mario Kleiner <mario.kleiner at tuebingen.mpg.de> 2010-07-26 17:31:53 PDT ---
Jerome,

your Improved patch works on R600 for me as well, thanks for improving it and
teaching me about the proper draw functions for non-r600 gpu's :-). It took me
half a day to initially find r700DrawPrim() as the proper location for R600.

Looking at the code and comparing with the intel driver i think we should also
add a radeon_prepare_render() to radeonReadPixels() in radeon_pixel_read.c, and
the "copy from colorbuffer" path inside do_copy_texsubimage() in
radeon_tex_copy.c ? Reading/Copying from the backbuffer/frontbuffer must also
make sure it operates on the post-swap buffers, therefore wait for swap
completion.

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