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The reasoning Chad gave in the comment for choosing a valign of 4 is entirely bunk. The fact that you have to multiply pitch by 2 is completely unrelated to the halign/valign parameters used for texture layout. (Not completely unrelated. W-tiling is just Y-tiling with a bit of extra swizzling which turns 8x8 W-tiled chunks into 16x4 y-tiled chunks so it makes everything easier if miplevels are always aligned to 8x8.) The fact that RENDER_SURFACE_STATE::SurfaceVerticalAlignmet doesn't have a VALIGN_8 option doesn't matter since this is gen7 and you can't do stencil texturing anyway. v2 (Jason Ekstrand): - Delete most of Chad's comment and add a more descriptive commit message. Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com> Cc: "17.0 17.1" <mesa-stable@lists.freedesktop.org> Reviewed-by: Jason Ekstrand <jason@jlekstrand.net> Reviewed-by: Chad Versace <chadversary@chromium.org>
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