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swr/rast: add flat shading

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Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
This commit is contained in:
Alok Hota 2018-09-11 20:01:36 -05:00
parent 9d01f4d631
commit ae436203d9
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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@ -305,6 +305,19 @@ static SIMDINLINE simdscalar InterpolateComponentFlat(const float* pInterpBuffer
return vA;
}
//////////////////////////////////////////////////////////////////////////
/// @brief Interpolates a single component (flat shade).
/// @param pInterpBuffer - pointer to attribute barycentric coeffs
template <UINT Attrib, UINT Comp, UINT numComponents = 4>
static SIMDINLINE simdscalari InterpolateComponentFlatInt(const uint32_t* pInterpBuffer)
{
const uint32_t interpA = pInterpBuffer[Attrib * 3 * numComponents + 0 + Comp];
simdscalari vA = _simd_set1_epi32(interpA);
return vA;
}
//////////////////////////////////////////////////////////////////////////
/// @brief Interpolates a single component.
/// @param vI - barycentric I