mirror of
https://github.com/brl/mutter.git
synced 2025-02-19 22:54:08 +00:00

This ensures that glViewport is called before the first stage paint. Previously _clutter_stage_maybe_setup_viewport (which is done before we start painting) was bailing out without calling cogl_setup_viewport because the CLUTTER_STAGE_IN_RESIZE flag may be set if the stage was resized before the first paint. (NB: The CLUTTER_STAGE_IN_RESIZE flag isn't removed until we get an explicit event back from the X server since the window manager may choose to deny/alter the resize.) We now special case the first resize - where the viewport hasn't previously been initialized and use the requested geometry to initialize the glViewport without waiting for a reply from the server.