[cairo-bugs] [Bug 54657] commit 0bfd2ac causes great rendering problem is some programs

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=54657

--- Comment #8 from Chris Wilson <chris at chris-wilson.co.uk> 2012-09-13 14:34:27 UTC ---
Getting closer. In this sequence, the issue is that although we flush the
modifications, we didn't discard the backing storage for the fallback and so it
retained the original size in later use.

commit 6ee216000ae487492fceda0fb3fecb20bb9a41f6
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Thu Sep 13 15:25:49 2012 +0100

    xlib: Explicitly discard the fallback shm pixmap upon user modification

    If the user changes the size of the underlying drawable, we must make
    sure that we discard the current ShmPixmap in order to create a new
    fallback pixmap of the correct size next time.

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