[Bug 70541] XRenderCompositeGlyphs sometimes bypasses window-clipping [SNA]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70541

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #3 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit ec0866e86d365ae3fd9790b1b263d49fc4981220
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Wed Oct 16 22:39:54 2013 +0100

    sna/glyphs: Fix computation of extents for long strings

    And make sure we consider such overflowing strings for correct clipping
    against Windows.

    To offset the cost of doing a full extents check (~10% on aa10text), we
    introduce an approximate extents query (~1% on aa10text). The disparity
    should be rare, and should be an overestimate to force redundant
    clipping.

    Reported-by: Clemens Eisserer <linuxhippy at gmail.com>
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=70541
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

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