Jon TURNEY 70a94c5b7a rootless: fix uninitialized private key assert in non-rootless modes in Cygwin/X
IsFramedWindow() is called from miPaintWindow() if the server has
been built with ROOTLESS defined, irrespective of if RootlessInit()
has ever been called, or not.

Add a check to IsFramedWindow() to check if rootlessWindowPrivateKey
has been registered (as a proxy for checking if the rootless extension
has been initialized) so we don't go on to try to use that key,
triggering an assert.

This bug exposes what appears to be a difference in opinion about
the rootless extension between XQuartz and XWin.  XQuartz always
initializes the rootless extension, whereas XWin offers several modes
of operation, and the rootless extension is only used for one of them

That probably means that the all code under compile time guard for
ROOTLESS should be carefully checked that it doesn't also need to be
under a run-time guard

(I've reviewed the other ROOTLESS blocks in dix/events.c and
dix/window.c and they look ok -- keithp)

Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2010-08-10 09:13:30 -07:00
2010-08-01 22:48:21 -04:00

					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

Description
Truly free fork of the XOrg project.
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