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authorSagar Ghuge <[email protected]>2018-07-27 14:55:57 -0700
committerAnuj Phogat <[email protected]>2018-08-28 12:57:27 -0700
commit5650d3997851007a4e4268a4fa4bd698db41e7dc (patch)
tree64317045968fff5a595dfa19e7275726d1b67487 /doxygen
parent379949b967f88d27529a2a1a9706753600ce80ca (diff)
mesa: Add support for AMD_depth_clamp_separate
Enable _mesa_PushAttrib() and _mesa_PopAttrib() to handle GL_DEPTH_CLAMP_NEAR_AMD and GL_DEPTH_CLAMP_FAR_AMD tokens. Remove DepthClamp, because DepthClampNear + DepthClampFar replaces it, as suggested by Marek Olsak. Driver that enables AMD_depth_clamp_separate will only ever look at DepthClampNear and DepthClampFar, as suggested by Ian Romanick. v2: 1) Remove unnecessary parentheses (Marek Olsak) 2) if AMD_depth_clamp_separate is unsupported, TEST_AND_UPDATE GL_DEPTH_CLAMP only (Marek Olsak) 3) Clamp against near and far plane separately (Marek Olsak) 4) Clip point separately for near and far Z clipping plane (Marek Olsak) v3: Clamp raster position zw to the range [min(n,f), 0] for near plane and [0, max(n,f)] for far plane (Marek Olsak) v4: Use MIN2 and MAX2 instead of CLAMP (Marek Olsak) Signed-off-by: Sagar Ghuge <[email protected]> Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Marek Olšák <[email protected]>
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