Copied from virglrenderer. Some in-development features are guarded by
VIRGL_RENDERER_UNSTABLE_APIS and they should not be used without knowing
the consequences.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6235>