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a5266dcb3a
Previously the parent constrained borderClip was copied over when compRedirectWindow() is called. That is insufficient eg. in case the window was already redirected, but not yet realized. So copy the borderClip over in compAllocPixmap() instead. Example: Window 1 is below an automatically redirect window 2. Window 2 is unmapped and moved outside the extents of window 1. Window 2 is then mapped again, and MarkOverlappedWindows() uses the up to date borderSize of window 2 to mark windows, which leaves window 1 unmarked. Then exposures are calculated using the stale borderClip of window 2, which causes the window below window 2, to be exposed through an apparent hole in window 1. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=22566 Signed-off-by: Ville Syrjala <syrjala@sci.fi> Reviewed-by: Keith Packard <keithp@keithp.com> Signed-off-by: Keith Packard <keithp@keithp.com>
X Server
The X server accepts requests from client applications to create windows,
which are (normally rectangular) "virtual screens" that the client program
can draw into.
Windows are then composed on the actual screen by the X server
(or by a separate composite manager) as directed by the window manager,
which usually communicates with the user via graphical controls such as buttons
and draggable titlebars and borders.
For a comprehensive overview of X Server and X Window System, consult the
following article:
http://en.wikipedia.org/wiki/X_server
All questions regarding this software should be directed at the
Xorg mailing list:
http://lists.freedesktop.org/mailman/listinfo/xorg
Please submit bug reports to the Xorg bugzilla:
https://bugs.freedesktop.org/enter_bug.cgi?product=xorg
The master development code repository can be found at:
git://anongit.freedesktop.org/git/xorg/xserver
http://cgit.freedesktop.org/xorg/xserver
For patch submission instructions, see:
http://www.x.org/wiki/Development/Documentation/SubmittingPatches
For more information on the git code manager, see:
http://wiki.x.org/wiki/GitPage