225 lines
6.4 KiB
C++
225 lines
6.4 KiB
C++
/*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) 2000-2008, Intel Corporation, all rights reserved.
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// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
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// Copyright (C) 2013, OpenCV Foundation, all rights reserved.
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// Third party copyrights are property of their respective owners.
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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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#pragma once
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#ifndef OPENCV_CUDEV_PTR2D_EXTRAPOLATION_HPP
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#define OPENCV_CUDEV_PTR2D_EXTRAPOLATION_HPP
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#include "../common.hpp"
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#include "../util/vec_traits.hpp"
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#include "traits.hpp"
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namespace cv { namespace cudev {
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//! @addtogroup cudev
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//! @{
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// BrdConstant
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template <class SrcPtr> struct BrdConstant
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{
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typedef typename PtrTraits<SrcPtr>::value_type value_type;
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typedef int index_type;
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SrcPtr src;
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int rows, cols;
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typename PtrTraits<SrcPtr>::value_type val;
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__device__ __forceinline__ typename PtrTraits<SrcPtr>::value_type operator ()(int y, int x) const
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{
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return (x >= 0 && x < cols && y >= 0 && y < rows) ? src(y, x) : val;
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}
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};
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template <class SrcPtr>
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__host__ BrdConstant<typename PtrTraits<SrcPtr>::ptr_type> brdConstant(const SrcPtr& src, typename PtrTraits<SrcPtr>::value_type val)
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{
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BrdConstant<typename PtrTraits<SrcPtr>::ptr_type> b;
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b.src = shrinkPtr(src);
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b.rows = getRows(src);
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b.cols = getCols(src);
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b.val = val;
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return b;
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}
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template <class SrcPtr>
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__host__ BrdConstant<typename PtrTraits<SrcPtr>::ptr_type> brdConstant(const SrcPtr& src)
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{
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return brdConstant(src, VecTraits<typename PtrTraits<SrcPtr>::value_type>::all(0));
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}
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// BrdBase
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template <class BrdImpl, class SrcPtr> struct BrdBase
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{
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typedef typename PtrTraits<SrcPtr>::value_type value_type;
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typedef int index_type;
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SrcPtr src;
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int rows, cols;
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__device__ __forceinline__ int idx_row(int y) const
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{
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return BrdImpl::idx_low(BrdImpl::idx_high(y, rows), rows);
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}
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__device__ __forceinline__ int idx_col(int x) const
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{
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return BrdImpl::idx_low(BrdImpl::idx_high(x, cols), cols);
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}
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__device__ __forceinline__ typename PtrTraits<SrcPtr>::value_type operator ()(int y, int x) const
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{
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return src(idx_row(y), idx_col(x));
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}
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};
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// BrdReplicate
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struct BrdReplicate
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{
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__device__ __forceinline__ static int idx_low(int i, int len)
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{
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return ::max(i, 0);
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}
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__device__ __forceinline__ static int idx_high(int i, int len)
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{
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return ::min(i, len - 1);
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}
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};
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template <class SrcPtr>
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__host__ BrdBase<BrdReplicate, typename PtrTraits<SrcPtr>::ptr_type> brdReplicate(const SrcPtr& src)
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{
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BrdBase<BrdReplicate, typename PtrTraits<SrcPtr>::ptr_type> b;
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b.src = shrinkPtr(src);
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b.rows = getRows(src);
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b.cols = getCols(src);
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return b;
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}
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// BrdReflect101
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struct BrdReflect101
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{
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__device__ __forceinline__ static int idx_low(int i, int len)
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{
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return ::abs(i) % len;
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}
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__device__ __forceinline__ static int idx_high(int i, int len)
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{
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const int last_ind = len - 1;
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return ::abs(last_ind - ::abs(last_ind - i)) % len;
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}
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};
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template <class SrcPtr>
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__host__ BrdBase<BrdReflect101, typename PtrTraits<SrcPtr>::ptr_type> brdReflect101(const SrcPtr& src)
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{
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BrdBase<BrdReflect101, typename PtrTraits<SrcPtr>::ptr_type> b;
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b.src = shrinkPtr(src);
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b.rows = getRows(src);
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b.cols = getCols(src);
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return b;
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}
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// BrdReflect
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struct BrdReflect
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{
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__device__ __forceinline__ static int idx_low(int i, int len)
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{
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return (::abs(i) - (i < 0)) % len;
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}
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__device__ __forceinline__ static int idx_high(int i, int len)
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{
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const int last_ind = len - 1;
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return (last_ind - ::abs(last_ind - i) + (i > last_ind));
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}
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};
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template <class SrcPtr>
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__host__ BrdBase<BrdReflect, typename PtrTraits<SrcPtr>::ptr_type> brdReflect(const SrcPtr& src)
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{
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BrdBase<BrdReflect, typename PtrTraits<SrcPtr>::ptr_type> b;
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b.src = shrinkPtr(src);
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b.rows = getRows(src);
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b.cols = getCols(src);
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return b;
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}
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// BrdWrap
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struct BrdWrap
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{
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__device__ __forceinline__ static int idx_low(int i, int len)
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{
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return (i >= 0) ? i : (i - ((i - len + 1) / len) * len);
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}
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__device__ __forceinline__ static int idx_high(int i, int len)
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{
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return (i < len) ? i : (i % len);
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}
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};
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template <class SrcPtr>
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__host__ BrdBase<BrdWrap, typename PtrTraits<SrcPtr>::ptr_type> brdWrap(const SrcPtr& src)
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{
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BrdBase<BrdWrap, typename PtrTraits<SrcPtr>::ptr_type> b;
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b.src = shrinkPtr(src);
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b.rows = getRows(src);
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b.cols = getCols(src);
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return b;
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}
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//! @}
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}}
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#endif
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