3170b63314
This provides a cached view of the current screen resources, with the
coordinates and refresh rate for every active CRTC. It's currently only
implemented for X11/XCB.
Fixes: 4752655649 ("egl/x11: implement ANGLE_sync_control_rate")
Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20665>