94 lines
3.6 KiB
Common Lisp
94 lines
3.6 KiB
Common Lisp
////////////////////////////////////////////////////////////////////////////////////////
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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 oclMaterials 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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#if defined (DOUBLE_SUPPORT)
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#ifdef cl_amd_fp64
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#pragma OPENCL EXTENSION cl_amd_fp64:enable
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#elif defined (cl_khr_fp64)
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#pragma OPENCL EXTENSION cl_khr_fp64:enable
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#endif
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#endif
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/**************************************Count NonZero**************************************/
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__kernel void arithm_op_nonzero(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_nonzero[128];
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dstT nonzero = (dstT)(0);
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srcT zero = (srcT)(0), one = (srcT)(1);
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for (int grain = groupnum << 8; id < elemnum; id += grain)
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{
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idx = offset + id + (id / cols) * invalid_cols;
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nonzero += src[idx] == zero ? zero : one;
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}
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if (lid > 127)
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localmem_nonzero[lid - 128] = nonzero;
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barrier(CLK_LOCAL_MEM_FENCE);
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if (lid < 128)
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localmem_nonzero[lid] = nonzero + localmem_nonzero[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_nonzero[lid] = localmem_nonzero[lid] + localmem_nonzero[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_nonzero[0];
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}
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