109 lines
3.7 KiB
C++
109 lines
3.7 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_RESIZE_HPP__
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#define __OPENCV_CUDEV_PTR2D_RESIZE_HPP__
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#include "opencv2/core/base.hpp"
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#include "../common.hpp"
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#include "../grid/copy.hpp"
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#include "traits.hpp"
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#include "gpumat.hpp"
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namespace cv { namespace cudev {
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//! @addtogroup cudev
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//! @{
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template <class SrcPtr> struct ResizePtr
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{
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typedef typename PtrTraits<SrcPtr>::value_type value_type;
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typedef typename PtrTraits<SrcPtr>::index_type index_type;
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SrcPtr src;
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float fx, fy;
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__device__ __forceinline__ typename PtrTraits<SrcPtr>::value_type operator ()(typename PtrTraits<SrcPtr>::index_type y, typename PtrTraits<SrcPtr>::index_type x) const
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{
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const float yn = static_cast<float>(y * fy);
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const float xn = static_cast<float>(x * fx);
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return src(yn, xn);
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}
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};
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template <class SrcPtr> struct ResizePtrSz : ResizePtr<SrcPtr>
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{
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int rows, cols;
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template <typename T>
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__host__ void assignTo(GpuMat_<T>& dst, Stream& stream = Stream::Null()) const
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{
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gridCopy(*this, dst, stream);
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}
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};
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template <class SrcPtr>
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__host__ ResizePtrSz<typename PtrTraits<SrcPtr>::ptr_type> resizePtr(const SrcPtr& src, float fx, float fy)
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{
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ResizePtrSz<typename PtrTraits<SrcPtr>::ptr_type> r;
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r.src = shrinkPtr(src);
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r.fx = 1.0f / fx;
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r.fy = 1.0f / fy;
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r.rows = cv::saturate_cast<int>(getRows(src) * fy);
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r.cols = cv::saturate_cast<int>(getCols(src) * fx);
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return r;
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}
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template <class SrcPtr> struct PtrTraits< ResizePtrSz<SrcPtr> > : PtrTraitsBase<ResizePtrSz<SrcPtr>, ResizePtr<SrcPtr> >
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{
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};
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//! @}
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}}
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#endif
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