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95 lines
3.9 KiB
Common Lisp
95 lines
3.9 KiB
Common Lisp
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/*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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// Wu Zailong, bullet@yeah.net
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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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//M*/
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#if defined (DOUBLE_SUPPORT)
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#pragma OPENCL EXTENSION cl_khr_fp64:enable
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#endif
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#define INF_FLOAT -88.029694
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#define INF_DOUBLE -709.0895657128241
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//////////////////////////////////////////////////////////////////////////////////////////////////////
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/////////////////////////////////////////////LOG/////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////////////////////////////
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__kernel void arithm_log_D5(int rows, int cols, int srcStep, int dstStep, int srcOffset, int dstOffset, __global float *src, __global float *dst)
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{
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int x = get_global_id(0);
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int y = get_global_id(1);
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if(x < cols && y < rows )
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{
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x = x << 2;
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int srcIdx = mad24( y, srcStep, x + srcOffset);
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int dstIdx = mad24( y, dstStep, x + dstOffset);
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float src_data = *((__global float *)((__global char *)src + srcIdx));
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float dst_data = (src_data == 0) ? INF_FLOAT : log(fabs(src_data));
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*((__global float *)((__global char *)dst + dstIdx)) = dst_data;
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}
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}
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#if defined (DOUBLE_SUPPORT)
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__kernel void arithm_log_D6(int rows, int cols, int srcStep, int dstStep, int srcOffset, int dstOffset, __global double *src, __global double *dst)
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{
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int x = get_global_id(0);
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int y = get_global_id(1);
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if(x < cols && y < rows )
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{
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x = x << 3;
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int srcIdx = mad24( y, srcStep, x + srcOffset);
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int dstIdx = mad24( y, dstStep, x + dstOffset);
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double src_data = *((__global double *)((__global char *)src + srcIdx));
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double dst_data = (src_data == 0) ? INF_DOUBLE : log(fabs(src_data));
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*((__global double *)((__global char *)dst + dstIdx)) = dst_data;
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}
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}
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#endif
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