4b27ebee7f
For vulkan video I need these to parse slice headers, so move them somewhere easier to get at them. drops pointer_to_uintptr in favour of a cast. Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13768>