[Mesa-dev] [Bug 89131] [Bisected] Graphical corruption in Weston, shows old framebuffer pieces

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89131

--- Comment #5 from Park, Jeongmin <pjm0616 at gmail.com> ---

I moved depth buffer checks from dri*.c to pp_jimenezmlaa() per Brian's comment
here: https://bugs.freedesktop.org/show_bug.cgi?id=88962
depth buffer check was added to pp_mlaa.c in
2e6ba6afdb62e80689b844c7267272d261db172c
and removed from dri*.c in 0467a52dc3f7d51eeb51179ce2f9871758ecacb1

This bug seems to be caused by my patch didn't check if pp_jimenezmlaa() was
failed.
In pp_run.c, if there are multiple postprocess stages(ppq->n_filters > 1)
so that it requires a temp buffer(ppq->tmp[]), and pp_jimenzmlaa return
immediately without writing to 'out', then the temp buffer would have old data.

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