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Add macro helper to compute LaneSwizzle offset #1682

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Merged
merged 2 commits into from
Sep 2, 2020
Merged

Add macro helper to compute LaneSwizzle offset #1682

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049bf17
Add macro helper
FrancescoC-unity Aug 26, 2020
f69c8e5
Add parenthesis
FrancescoC-unity Sep 1, 2020
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6 changes: 6 additions & 0 deletions com.unity.render-pipelines.core/ShaderLibrary/Common.hlsl
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Expand Up @@ -215,6 +215,12 @@
#define WaveGetLaneCount ERROR_ON_UNSUPPORTED_FUNCTION(WaveGetLaneCount)
#endif

#if defined(PLATFORM_SUPPORTS_WAVE_INTRINSICS)
// Helper macro to compute lane swizzle offset starting from andMask, orMask and xorMask.
// IMPORTANT, to guarantee compatibility with all platforms, the masks need to be constant literals (constants at compile time)
#define LANE_SWIZZLE_OFFSET(andMask, orMask, xorMask) (andMask | (orMask << 5) | (xorMask << 10))
#endif

#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/CommonDeprecated.hlsl"

#if !defined(SHADER_API_GLES)
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