/****************************************************************************
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* Copyright (C) 2014-2015 Intel Corporation. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* @file state.h
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*
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* @brief Definitions for API state - complex function implementation.
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*
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******************************************************************************/
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#pragma once
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#include "core/state.h"
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#include "common/simdintrin.h"
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template <typename MaskT>
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INLINE __m128i SWR_MULTISAMPLE_POS::expandThenBlend4(uint32_t* min, uint32_t* max)
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{
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__m128i vMin = _mm_set1_epi32(*min);
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__m128i vMax = _mm_set1_epi32(*max);
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return _simd_blend4_epi32<MaskT::value>(vMin, vMax);
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}
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INLINE void SWR_MULTISAMPLE_POS::PrecalcSampleData(int numSamples)
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{
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for(int i = 0; i < numSamples; i++)
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{
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_vXi[i] = _mm_set1_epi32(_xi[i]);
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_vYi[i] = _mm_set1_epi32(_yi[i]);
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_vX[i] = _simd_set1_ps(_x[i]);
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_vY[i] = _simd_set1_ps(_y[i]);
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}
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// precalculate the raster tile BB for the rasterizer.
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CalcTileSampleOffsets(numSamples);
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}
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INLINE void SWR_MULTISAMPLE_POS::CalcTileSampleOffsets(int numSamples)
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{
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auto minXi = std::min_element(std::begin(_xi), &_xi[numSamples]);
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auto maxXi = std::max_element(std::begin(_xi), &_xi[numSamples]);
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using xMask = std::integral_constant<int, 0xA>;
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// BR(max), BL(min), UR(max), UL(min)
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tileSampleOffsetsX = expandThenBlend4<xMask>(minXi, maxXi);
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auto minYi = std::min_element(std::begin(_yi), &_yi[numSamples]);
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auto maxYi = std::max_element(std::begin(_yi), &_yi[numSamples]);
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using yMask = std::integral_constant<int, 0xC>;
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// BR(max), BL(min), UR(max), UL(min)
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tileSampleOffsetsY = expandThenBlend4<yMask>(minYi, maxYi);
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};
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