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334faabe68
If a 2D application is started on top of a fullscreen 3D application, which is flipping, then we need to stop flipping and restore the root window, and possibly the flip window, to using the screen pixmap. Normally this would be done as part of an unflip. However, in the case that there is a pending flip there is no mechanism to abort so the unflip is deferred until the pending flip completes. This provides a window of opportunity for the 2D application to draw to the wrong pixmap. Restore the screen pixmap at the point a pending flip is marked as aborted, thus avoiding this issue. Reviewed-by: Keith Packard <keithp@keithp.com> Signed-off-by: Frank Binns <frank.binns@imgtec.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