ca2ddd33a1
As after we got a texture, no matter the texture is created on the glamor_create_pixmap or on the egl layer, we all already know the texture's width and height there. We don't need to pass them in. This commit also simply the glamor_egl_create_textured_screen to reuse the egl_create_textured_pixmap. And also remove the useless root image from the egl private structure. As now the root image is bound to the screen image, we don't take care it separately here. It will be freed at the screen closing. Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.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
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