diff options
| -rw-r--r-- | src/gallium/drivers/swr/rasterizer/common/simdintrin.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/gallium/drivers/swr/rasterizer/common/simdintrin.h b/src/gallium/drivers/swr/rasterizer/common/simdintrin.h index 4145ba8dcce..df5c3ac6056 100644 --- a/src/gallium/drivers/swr/rasterizer/common/simdintrin.h +++ b/src/gallium/drivers/swr/rasterizer/common/simdintrin.h @@ -282,6 +282,13 @@ static SIMDINLINE simdscalar InterpolateComponent(simdscalar const& vI, const float* pInterpB = &pInterpBuffer[Attrib * 3 * numComponents + numComponents + Comp]; const float* pInterpC = &pInterpBuffer[Attrib * 3 * numComponents + numComponents * 2 + Comp]; + if ((pInterpA[0] == pInterpB[0]) && (pInterpA[0] == pInterpC[0])) + { + // Ensure constant attribs are constant. Required for proper + // 3D resource copies. + return _simd_broadcast_ss(pInterpA); + } + simdscalar vA = _simd_broadcast_ss(pInterpA); simdscalar vB = _simd_broadcast_ss(pInterpB); simdscalar vC = _simd_broadcast_ss(pInterpC); @@ -332,6 +339,13 @@ static SIMDINLINE simd4scalar InterpolateComponent(simd4scalar const& vI, const float* pInterpB = &pInterpBuffer[Attrib * 3 * numComponents + numComponents + Comp]; const float* pInterpC = &pInterpBuffer[Attrib * 3 * numComponents + numComponents * 2 + Comp]; + if ((pInterpA[0] == pInterpB[0]) && (pInterpA[0] == pInterpC[0])) + { + // Ensure constant attribs are constant. Required for proper + // 3D resource copies. + return SIMD128::broadcast_ss(pInterpA); + } + simd4scalar vA = SIMD128::broadcast_ss(pInterpA); simd4scalar vB = SIMD128::broadcast_ss(pInterpB); simd4scalar vC = SIMD128::broadcast_ss(pInterpC); |