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82 lines
3.4 KiB
Common Lisp
82 lines
3.4 KiB
Common Lisp
/*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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// Zhang Ying, zhangying913@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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#ifdef 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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__kernel void threshold(__global const uchar * srcptr, int src_step, int src_offset,
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__global uchar * dstptr, int dst_step, int dst_offset, int rows, int cols,
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T1 thresh, T1 max_val)
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{
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int gx = get_global_id(0);
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int gy = get_global_id(1);
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if (gx < cols && gy < rows)
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{
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int src_index = mad24(gy, src_step, mad24(gx, (int)sizeof(T), src_offset));
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int dst_index = mad24(gy, dst_step, mad24(gx, (int)sizeof(T), dst_offset));
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T sdata = *(__global const T *)(srcptr + src_index);
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__global T * dst = (__global T *)(dstptr + dst_index);
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#ifdef THRESH_BINARY
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dst[0] = sdata > (T)(thresh) ? (T)(max_val) : (T)(0);
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#elif defined THRESH_BINARY_INV
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dst[0] = sdata > (T)(thresh) ? (T)(0) : (T)(max_val);
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#elif defined THRESH_TRUNC
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dst[0] = sdata > (T)(thresh) ? (T)(thresh) : sdata;
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#elif defined THRESH_TOZERO
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dst[0] = sdata > (T)(thresh) ? sdata : (T)(0);
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#elif defined THRESH_TOZERO_INV
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dst[0] = sdata > (T)(thresh) ? (T)(0) : sdata;
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#endif
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}
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}
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