Open Source Computer Vision Library
https://opencv.org/
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104 lines
3.7 KiB
104 lines
3.7 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) 2010-2012, Institute Of Software Chinese Academy Of Science, all rights reserved. |
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// Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved. |
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// Third party copyrights are property of their respective owners. |
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// |
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// @Authors |
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// Shengen Yan,yanshengen@gmail.com |
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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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#if defined (DOUBLE_SUPPORT) |
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#ifdef cl_khr_fp64 |
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#pragma OPENCL EXTENSION cl_khr_fp64:enable |
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#elif defined (cl_amd_fp64) |
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#pragma OPENCL EXTENSION cl_amd_fp64:enable |
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#endif |
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#endif |
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#if FUNC_SUM |
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#define FUNC(a, b) b += a; |
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#elif FUNC_ABS_SUM |
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#define FUNC(a, b) b += a >= (dstT)(0) ? a : -a; |
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#elif FUNC_SQR_SUM |
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#define FUNC(a, b) b += a * a; |
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#else |
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#error No sum function |
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#endif |
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/**************************************Array buffer SUM**************************************/ |
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__kernel void arithm_op_sum(int cols,int invalid_cols,int offset,int elemnum,int groupnum, |
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__global srcT *src, __global dstT *dst) |
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{ |
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unsigned int lid = get_local_id(0); |
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unsigned int gid = get_group_id(0); |
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unsigned int id = get_global_id(0); |
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unsigned int idx = offset + id + (id / cols) * invalid_cols; |
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__local dstT localmem_sum[128]; |
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dstT sum = (dstT)(0), temp; |
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for (int grainSize = groupnum << 8; id < elemnum; id += grainSize) |
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{ |
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idx = offset + id + (id / cols) * invalid_cols; |
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temp = convertToDstT(src[idx]); |
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FUNC(temp, sum); |
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} |
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if (lid > 127) |
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localmem_sum[lid - 128] = sum; |
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barrier(CLK_LOCAL_MEM_FENCE); |
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if (lid < 128) |
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localmem_sum[lid] = sum + localmem_sum[lid]; |
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barrier(CLK_LOCAL_MEM_FENCE); |
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for (int lsize = 64; lsize > 0; lsize >>= 1) |
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{ |
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if (lid < lsize) |
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{ |
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int lid2 = lsize + lid; |
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localmem_sum[lid] = localmem_sum[lid] + localmem_sum[lid2]; |
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} |
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barrier(CLK_LOCAL_MEM_FENCE); |
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} |
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if (lid == 0) |
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dst[gid] = localmem_sum[0]; |
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}
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