
this adds a variable which, when set, overrides the return of the pipe_screen::is_compute_copy_faster hook to force using compute shader downloads even on drivers that don't export the cap/hook, enabling easier testing it also adds MESA_COMPUTE_PBO=spec to force always using specialized pbo variants Acked-by: Marek Olšák <marek.olsak@amd.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18198>