pub type PFN_vkGetImageSubresourceLayout2 = unsafe extern "system" fn(_device: Device, _image: Image, _subresource: *const ImageSubresource2, _layout: *mut SubresourceLayout2);pub type PFN_vkGetImageSubresourceLayout2 = unsafe extern "system" fn(_device: Device, _image: Image, _subresource: *const ImageSubresource2, _layout: *mut SubresourceLayout2);