agc_driver_graphics registers a D32 and a D16 surface on a mock device and looks up views at their addresses. Views of the surface's own extent in R32F or R16, and T#s that read the raw depth bits, sample the depth plane; a view of another extent, a 2D array view of another extent, an R11G11B10 view, an R32 uint view without a depth layout and an R32F view of a D16 surface return null and take the ordinary texture path. On main the first of these throws in DepthSurface::Sampled.