/**************************************************************************** * Copyright (C) 2014-2015 Intel Corporation. All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. * * @file Scatter.cpp * * @brief Shader support library implementation for scatter emulation * * Notes: * ******************************************************************************/ #include #include "common/os.h" #include "common/simdlib.hpp" extern "C" void ScatterPS_256(uint8_t* pBase, SIMD256::Integer vIndices, SIMD256::Float vSrc, uint8_t mask, uint32_t scale) { OSALIGN(float, 32) src[8]; OSALIGN(uint32_t, 32) indices[8]; SIMD256::store_ps(src, vSrc); SIMD256::store_si((SIMD256::Integer*)indices, vIndices); unsigned long index; while (_BitScanForward(&index, mask)) { mask &= ~(1 << index); *(float*)(pBase + indices[index] * scale) = src[index]; } }