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e337de2d48
This code is using GetImage to accumulate a logical view of the window image (since the windows will be clipped to their containing screen), and then PutImage to load that back into the pixmap. What it wasn't doing was constructing a region for the obscured areas of the window and emitting graphics exposures for same. v2: Fix coordinate translation when the source is the root window v3: Create sourceBox with the right coordinates initially instead of translating (Keith Packard) v4: Clamp the region to 15 bits to avoid overflow (Keith Packard) Signed-off-by: Adam Jackson <ajax@redhat.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