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83460a9498
miDbePositionWindow allocates two pixmaps: a front buffer, and a back buffer.
If the buffers are supposed to be initialized, it validates a GC against the
front buffer, then uses it to fill and/or copy both the front buffer *and* the
back buffer, without revalidating. If the acceleration architecture needs
different GC funcs for the two pixmaps -- for example if allocation of the front
buffer exhausted video memory -- then this can cause crashes because the GC is
not validated for the back buffer pixmap.
Fix this by performing the rendering for the front buffer first, then
revalidating against the back buffer before performing the back buffer
rendering.
Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
(cherry picked from commit
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| composite | ||
| config | ||
| damageext | ||
| dbe | ||
| dix | ||
| doc | ||
| exa | ||
| fb | ||
| glx | ||
| hw | ||
| include | ||
| m4 | ||
| mi | ||
| miext | ||
| os | ||
| randr | ||
| record | ||
| render | ||
| test | ||
| Xext | ||
| xfixes | ||
| Xi | ||
| xkb | ||
| .gitignore | ||
| autogen.sh | ||
| configure.ac | ||
| COPYING | ||
| cpprules.in | ||
| Makefile.am | ||
| README | ||
| xorg-server.m4 | ||
| xorg-server.pc.in | ||
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