f11ea22666
I recently changed the slow depth/stencil clear path to make sure depth values are explicitly exported by the fragment shader. This is actually only useful when VK_EXT_depth_range_unrestricted is enabled. While this path is correct, it introduced a performance regression with Heroes of the Storm, Shadow of Mordor (Vulkan beta) and probably more titles. This is because it prevents the hardware to do some optimizations like discarding fragments. This commit re-introduces the previous (a bit faster) slow depth/stencil clear path and it selects the unrestricted path only if VK_EXT_depth_range_unrestricted is enabled. Closes: https://gitlab.freedesktop.org/mesa/mesa/issues/863 Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com> Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
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