133 lines
4.8 KiB
Common Lisp
133 lines
4.8 KiB
Common Lisp
// 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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// Niko Li, newlife20080214@gmail.com
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// Zero Lin zero.lin@amd.com
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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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//
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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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#ifdef BORDER_CONSTANT
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#define EXTRAPOLATE(x, y, v) v = scalar;
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#elif defined BORDER_REPLICATE
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#define EXTRAPOLATE(x, y, v) \
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{ \
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x = clamp(x, 0, src_cols - 1); \
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y = clamp(y, 0, src_rows - 1); \
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v = *(__global const T *)(srcptr + mad24(y, src_step, mad24(x, (int)sizeof(T), src_offset))); \
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}
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#elif defined BORDER_WRAP
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#define EXTRAPOLATE(x, y, v) \
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{ \
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if (x < 0) \
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x -= ((x - src_cols + 1) / src_cols) * src_cols; \
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if (x >= src_cols) \
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x %= src_cols; \
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\
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if (y < 0) \
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y -= ((y - src_rows + 1) / src_rows) * src_rows; \
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if( y >= src_rows ) \
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y %= src_rows; \
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v = *(__global const T *)(srcptr + mad24(y, src_step, mad24(x, (int)sizeof(T), src_offset))); \
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}
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#elif defined(BORDER_REFLECT) || defined(BORDER_REFLECT_101)
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#ifdef BORDER_REFLECT
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#define DELTA int delta = 0
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#else
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#define DELTA int delta = 1
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#endif
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#define EXTRAPOLATE(x, y, v) \
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{ \
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DELTA; \
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if (src_cols == 1) \
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x = 0; \
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else \
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do \
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{ \
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if( x < 0 ) \
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x = -x - 1 + delta; \
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else \
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x = src_cols - 1 - (x - src_cols) - delta; \
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} \
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while (x >= src_cols || x < 0); \
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\
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if (src_rows == 1) \
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y = 0; \
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else \
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do \
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{ \
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if( y < 0 ) \
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y = -y - 1 + delta; \
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else \
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y = src_rows - 1 - (y - src_rows) - delta; \
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} \
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while (y >= src_rows || y < 0); \
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v = *(__global const T *)(srcptr + mad24(y, src_step, mad24(x, (int)sizeof(T), src_offset))); \
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}
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#else
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#error No extrapolation method
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#endif
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#define NEED_EXTRAPOLATION(gx, gy) (gx >= src_cols || gy >= src_rows || gx < 0 || gy < 0)
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__kernel void copyMakeBorder(__global const uchar * srcptr, int src_step, int src_offset, int src_rows, int src_cols,
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__global uchar * dstptr, int dst_step, int dst_offset, int dst_rows, int dst_cols,
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int top, int left, T scalar)
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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 < dst_cols && y < dst_rows)
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{
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int src_x = x - left;
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int src_y = y - top;
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int dst_index = mad24(y, dst_step, mad24(x, (int)sizeof(T), dst_offset));
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__global T * dst = (__global T *)(dstptr + dst_index);
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if (NEED_EXTRAPOLATION(src_x, src_y))
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EXTRAPOLATE(src_x, src_y, dst[0])
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else
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{
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int src_index = mad24(src_y, src_step, mad24(src_x, (int)sizeof(T), src_offset));
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__global const T * src = (__global const T *)(srcptr + src_index);
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dst[0] = src[0];
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}
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}
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}
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