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Which are essentially variants of NV12. All of them have been tested with the Weston client-buffer test with llvmpipe and radeonsi. Signed-off-by: Robert Mader <robert.mader@collabora.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36890>