153 lines
6.0 KiB
Common Lisp
153 lines
6.0 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 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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// threshold type:
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// enum { THRESH_BINARY=0, THRESH_BINARY_INV=1, THRESH_TRUNC=2, THRESH_TOZERO=3,
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// THRESH_TOZERO_INV=4, THRESH_MASK=7, THRESH_OTSU=8 };
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__kernel void threshold_C1_D0(__global const uchar * restrict src, __global uchar *dst,
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int src_offset, int src_step,
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int dst_offset, int dst_rows, int dst_cols, int dst_step,
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uchar thresh, uchar max_val, int thresh_type
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)
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{
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int gx = get_global_id(0);
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const int gy = get_global_id(1);
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int offset = (dst_offset & 15);
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src_offset -= offset;
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int dstart = (gx << 4) - offset;
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if(dstart < dst_cols && gy < dst_rows)
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{
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uchar16 sdata = vload16(gx, src+src_offset+gy*src_step);
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uchar16 ddata;
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uchar16 zero = 0;
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switch (thresh_type)
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{
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case 0:
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ddata = ((sdata > thresh) ) ? (uchar16)(max_val) : (uchar16)(0);
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break;
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case 1:
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ddata = ((sdata > thresh)) ? zero : (uchar16)(max_val);
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break;
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case 2:
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ddata = ((sdata > thresh)) ? (uchar16)(thresh) : sdata;
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break;
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case 3:
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ddata = ((sdata > thresh)) ? sdata : zero;
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break;
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case 4:
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ddata = ((sdata > thresh)) ? zero : sdata;
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break;
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default:
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ddata = sdata;
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}
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int16 dpos = (int16)(dstart, dstart+1, dstart+2, dstart+3, dstart+4, dstart+5, dstart+6, dstart+7, dstart+8,
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dstart+9, dstart+10, dstart+11, dstart+12, dstart+13, dstart+14, dstart+15);
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uchar16 dVal = *(__global uchar16*)(dst+dst_offset+gy*dst_step+dstart);
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int16 con = dpos >= 0 && dpos < dst_cols;
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ddata = convert_uchar16(con != 0) ? ddata : dVal;
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if(dstart < dst_cols)
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{
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*(__global uchar16*)(dst+dst_offset+gy*dst_step+dstart) = ddata;
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}
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}
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}
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__kernel void threshold_C1_D5(__global const float * restrict src, __global float *dst,
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int src_offset, int src_step,
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int dst_offset, int dst_rows, int dst_cols, int dst_step,
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float thresh, float max_val, int thresh_type
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)
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{
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const int gx = get_global_id(0);
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const int gy = get_global_id(1);
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int offset = (dst_offset & 3);
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src_offset -= offset;
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int dstart = (gx << 2) - offset;
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if(dstart < dst_cols && gy < dst_rows)
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{
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float4 sdata = vload4(gx, src+src_offset+gy*src_step);
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float4 ddata;
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float4 zero = 0;
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switch (thresh_type)
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{
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case 0:
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ddata = sdata > thresh ? (float4)(max_val) : (float4)(0.f);
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break;
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case 1:
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ddata = sdata > thresh ? zero : (float4)max_val;
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break;
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case 2:
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ddata = sdata > thresh ? (float4)thresh : sdata;
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break;
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case 3:
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ddata = sdata > thresh ? sdata : (float4)(0.f);
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break;
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case 4:
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ddata = sdata > thresh ? (float4)(0.f) : sdata;
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break;
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default:
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ddata = sdata;
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}
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int4 dpos = (int4)(dstart, dstart+1, dstart+2, dstart+3);
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float4 dVal = *(__global float4*)(dst+dst_offset+gy*dst_step+dstart);
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int4 con = dpos >= 0 && dpos < dst_cols;
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ddata = convert_float4(con) != (float4)(0) ? ddata : dVal;
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if(dstart < dst_cols)
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{
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*(__global float4*)(dst+dst_offset+gy*dst_step+dstart) = ddata;
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}
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}
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}
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