c7a50db7ff
Keep track of the output the surface enters/leaves. This is fairly basic tracking though, we do not keep a full list of outputs a surface may be covering partially, we just keep the output the surface entered last. This is sufficient as a preparation work for fullscreen though. Signed-off-by: Olivier Fourdan <ofourdan@redhat.com> Reviewed-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: https://en.wikipedia.org/wiki/X_server
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