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f3480286ae
Rename compUpdateWindow to compPaintWindowToParent and split the child walk to compPaintChildrenToWindow. Calling compPaintChildrenToWindow allows an arbitrary subtree to be updated, instead of having to update all the windows. This will be used to make sure all the descendants are copied to the parent when the parent window contents need to be accessed in IncludeInferios sub-window mode. WindowRec has a new member 'damagedDescendants' that is used to keep track of which subtrees need updating. When a window is damaged, 'damagedDescendants' will be set for all the ancestors, and when a subtree is updated, the tree walk can be stopped early if no damaged descendants are present. CompScreenRec no longer needs the 'damaged' member since the root window's 'damagedDescendants' provides the same information. Signed-off-by: Ville Syrjälä <ville.syrjala@nokia.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