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swr: [rasterizer common] Add InterpolateComponentFlat utility

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Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
This commit is contained in:
Tim Rowley 2017-02-16 18:31:09 -08:00
parent ab04221bf1
commit ade5351900
1 changed files with 13 additions and 0 deletions
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13
src/gallium/drivers/swr/rasterizer/common/simdintrin.h
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@ -1122,6 +1122,19 @@ static INLINE simdscalar InterpolateComponent(simdscalar vI, simdscalar vJ, cons
return vplaneps(vA, vB, vC, vI, vJ); return vplaneps(vA, vB, vC, vI, vJ);
} }
//////////////////////////////////////////////////////////////////////////
/// @brief Interpolates a single component (flat shade).
/// @param pInterpBuffer - pointer to attribute barycentric coeffs
template<UINT Attrib, UINT Comp, UINT numComponents = 4>
static INLINE simdscalar InterpolateComponentFlat(const float *pInterpBuffer)
{
const float *pInterpA = &pInterpBuffer[Attrib * 3 * numComponents + 0 + Comp];
simdscalar vA = _simd_broadcast_ss(pInterpA);
return vA;
}
////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////
/// @brief Interpolates a single component. /// @brief Interpolates a single component.
/// @param vI - barycentric I /// @param vI - barycentric I