aaf29ade1c
The extension allows returning 0 if a given rate is unknown, which allows us to support this on all GPUs, but since the extension depends on Vulkan 1.1, we only expose it on v10+ for now. Acked-by: Erik Faye-Lund <erik.faye-lund@collabora.com> Reviewed-by: Lars-Ivar Hesselberg Simonsen <lars-ivar.simonsen@arm.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35155>