Pekka Paalanen authored Jul 26, 2022 and Pekka Paalanen committed Sep 23, 2022

This changes the GL-renderer interface to pass the initial framebuffer
size and compositing area explicitly. All backends are changed to
provide the correct parameters.

GL-renderer mostly does not yet use these values, but later patches
will. The pbuffer path uses it already, because they replaced the
existing fields.

All this is to make GL-renderer aware of the different sizes, so it can
implement the future revision of the screenshooting API.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>