// This file is part of OpenCV project.
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// It is subject to the license terms in the LICENSE file found in the top-level directory
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// of this distribution and at http://opencv.org/license.html.
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//
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// Copyright (C) 2018 Intel Corporation
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#ifndef OPENCV_GAPI_GMAT_HPP
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#define OPENCV_GAPI_GMAT_HPP
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#include <ostream>
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#include <memory> // std::shared_ptr
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#include <opencv2/gapi/opencv_includes.hpp>
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#include <opencv2/gapi/gcommon.hpp> // GShape
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#include "opencv2/gapi/own/types.hpp" // cv::gapi::own::Size
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#include "opencv2/gapi/own/convert.hpp" // to_own
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#include "opencv2/gapi/own/assert.hpp"
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// TODO GAPI_EXPORTS or so
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namespace cv
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{
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// Forward declaration; GNode and GOrigin are an internal
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// (user-inaccessible) classes.
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class GNode;
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struct GOrigin;
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/** \addtogroup gapi_data_objects
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* @{
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*
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* @brief Data-representing objects which can be used to build G-API
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* expressions.
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*/
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class GAPI_EXPORTS GMat
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{
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public:
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GMat(); // Empty constructor
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GMat(const GNode &n, std::size_t out); // Operation result constructor
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GOrigin& priv(); // Internal use only
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const GOrigin& priv() const; // Internal use only
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private:
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std::shared_ptr<GOrigin> m_priv;
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};
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/** @} */
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/**
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* \addtogroup gapi_meta_args
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* @{
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*/
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struct GAPI_EXPORTS GMatDesc
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{
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// FIXME: Default initializers in C++14
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int depth;
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int chan;
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cv::gapi::own::Size size; // NB.: no multi-dimensional cases covered yet
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inline bool operator== (const GMatDesc &rhs) const
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{
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return depth == rhs.depth && chan == rhs.chan && size == rhs.size;
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}
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inline bool operator!= (const GMatDesc &rhs) const
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{
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return !(*this == rhs);
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}
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// Meta combinator: return a new GMatDesc which differs in size by delta
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// (all other fields are taken unchanged from this GMatDesc)
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// FIXME: a better name?
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GMatDesc withSizeDelta(cv::gapi::own::Size delta) const
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{
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GMatDesc desc(*this);
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desc.size += delta;
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return desc;
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}
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#if !defined(GAPI_STANDALONE)
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GMatDesc withSizeDelta(cv::Size delta) const
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{
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return withSizeDelta(to_own(delta));
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}
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GMatDesc withSize(cv::Size sz) const
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{
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return withSize(to_own(sz));
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}
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#endif // !defined(GAPI_STANDALONE)
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// Meta combinator: return a new GMatDesc which differs in size by delta
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// (all other fields are taken unchanged from this GMatDesc)
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//
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// This is an overload.
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GMatDesc withSizeDelta(int dx, int dy) const
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{
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return withSizeDelta(cv::gapi::own::Size{dx,dy});
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}
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GMatDesc withSize(cv::gapi::own::Size sz) const
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{
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GMatDesc desc(*this);
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desc.size = sz;
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return desc;
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}
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// Meta combinator: return a new GMatDesc with specified data depth.
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// (all other fields are taken unchanged from this GMatDesc)
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GMatDesc withDepth(int ddepth) const
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{
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GAPI_Assert(CV_MAT_CN(ddepth) == 1 || ddepth == -1);
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GMatDesc desc(*this);
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if (ddepth != -1) desc.depth = ddepth;
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return desc;
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}
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// Meta combinator: return a new GMatDesc with specified data depth
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// and number of channels.
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// (all other fields are taken unchanged from this GMatDesc)
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GMatDesc withType(int ddepth, int dchan) const
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{
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GAPI_Assert(CV_MAT_CN(ddepth) == 1 || ddepth == -1);
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GMatDesc desc = withDepth(ddepth);
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desc.chan = dchan;
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return desc;
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}
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};
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static inline GMatDesc empty_gmat_desc() { return GMatDesc{-1,-1,{-1,-1}}; }
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#if !defined(GAPI_STANDALONE)
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class Mat;
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GAPI_EXPORTS GMatDesc descr_of(const cv::Mat &mat);
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GAPI_EXPORTS GMatDesc descr_of(const cv::UMat &mat);
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#endif // !defined(GAPI_STANDALONE)
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/** @} */
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namespace gapi { namespace own {
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class Mat;
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GAPI_EXPORTS GMatDesc descr_of(const Mat &mat);
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}}//gapi::own
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std::ostream& operator<<(std::ostream& os, const cv::GMatDesc &desc);
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} // namespace cv
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#endif // OPENCV_GAPI_GMAT_HPP
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