Open Source Computer Vision Library
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127 lines
4.1 KiB
127 lines
4.1 KiB
/*M/////////////////////////////////////////////////////////////////////////////////////// |
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// |
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. |
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// |
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// By downloading, copying, installing or using the software you agree to this license. |
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// If you do not agree to this license, do not download, install, |
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// copy or use the software. |
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// |
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// |
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// License Agreement |
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// For Open Source Computer Vision Library |
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// |
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// Copyright (C) 2000-2008, Intel Corporation, all rights reserved. |
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// Copyright (C) 2009, Willow Garage Inc., all rights reserved. |
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// Copyright (C) 2013, OpenCV Foundation, all rights reserved. |
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// Third party copyrights are property of their respective owners. |
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// |
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// Redistribution and use in source and binary forms, with or without modification, |
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// are permitted provided that the following conditions are met: |
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// |
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// * Redistribution's of source code must retain the above copyright notice, |
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// this list of conditions and the following disclaimer. |
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// |
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// * Redistribution's in binary form must reproduce the above copyright notice, |
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// this list of conditions and the following disclaimer in the documentation |
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// and/or other materials provided with the distribution. |
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// |
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// * The name of the copyright holders may not be used to endorse or promote products |
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// derived from this software without specific prior written permission. |
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// |
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// This software is provided by the copyright holders and contributors "as is" and |
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// any express or implied warranties, including, but not limited to, the implied |
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// warranties of merchantability and fitness for a particular purpose are disclaimed. |
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// In no event shall the Intel Corporation or contributors be liable for any direct, |
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// indirect, incidental, special, exemplary, or consequential damages |
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// (including, but not limited to, procurement of substitute goods or services; |
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// loss of use, data, or profits; or business interruption) however caused |
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// and on any theory of liability, whether in contract, strict liability, |
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// or tort (including negligence or otherwise) arising in any way out of |
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// the use of this software, even if advised of the possibility of such damage. |
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// |
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//M*/ |
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#pragma once |
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#ifndef __OPENCV_CUDEV_WARP_WARP_HPP__ |
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#define __OPENCV_CUDEV_WARP_WARP_HPP__ |
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#include "../common.hpp" |
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namespace cv { namespace cudev { |
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//! @addtogroup cudev |
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//! @{ |
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enum |
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{ |
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LOG_WARP_SIZE = 5, |
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WARP_SIZE = 1 << LOG_WARP_SIZE |
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}; |
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struct Warp |
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{ |
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__device__ __forceinline__ static uint laneId() |
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{ |
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uint ret; |
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asm("mov.u32 %0, %laneid;" : "=r"(ret)); |
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return ret; |
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} |
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__device__ __forceinline__ static uint warpId() |
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{ |
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const uint tid = (threadIdx.z * blockDim.y + threadIdx.y) * blockDim.x + threadIdx.x; |
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return tid / WARP_SIZE; |
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} |
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}; |
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template <class It, typename T> |
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__device__ __forceinline__ void warpFill(It beg, It end, const T& value) |
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{ |
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for(It t = beg + Warp::laneId(); t < end; t += WARP_SIZE) |
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*t = value; |
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} |
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template <class InIt, class OutIt> |
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__device__ __forceinline__ OutIt warpCopy(InIt beg, InIt end, OutIt out) |
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{ |
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for(InIt t = beg + Warp::laneId(); t < end; t += WARP_SIZE, out += WARP_SIZE) |
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*out = *t; |
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return out; |
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} |
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template <class InIt, class OutIt, class UnOp> |
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__device__ __forceinline__ OutIt warpTransform(InIt beg, InIt end, OutIt out, const UnOp& op) |
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{ |
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for(InIt t = beg + Warp::laneId(); t < end; t += WARP_SIZE, out += WARP_SIZE) |
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*out = op(*t); |
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return out; |
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} |
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template <class InIt1, class InIt2, class OutIt, class BinOp> |
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__device__ __forceinline__ OutIt warpTransform(InIt1 beg1, InIt1 end1, InIt2 beg2, OutIt out, const BinOp& op) |
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{ |
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uint lane = Warp::laneId(); |
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InIt1 t1 = beg1 + lane; |
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InIt2 t2 = beg2 + lane; |
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for(; t1 < end1; t1 += WARP_SIZE, t2 += WARP_SIZE, out += WARP_SIZE) |
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*out = op(*t1, *t2); |
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return out; |
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} |
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template<typename OutIt, typename T> |
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__device__ __forceinline__ void warpYota(OutIt beg, OutIt end, T value) |
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{ |
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uint lane = Warp::laneId(); |
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value += lane; |
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for(OutIt t = beg + lane; t < end; t += WARP_SIZE, value += WARP_SIZE) |
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*t = value; |
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} |
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//! @} |
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}} |
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#endif
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