// This file is part of OpenCV project. // It is subject to the license terms in the LICENSE file found in the top-level directory // of this distribution and at http://opencv.org/license.html. // // Copyright (C) 2018 Intel Corporation #ifndef OPENCV_GAPI_GMAT_HPP #define OPENCV_GAPI_GMAT_HPP #include #include // std::shared_ptr #include #include // GShape #include // cv::gapi::own::Size #include // to_own #include // TODO GAPI_EXPORTS or so namespace cv { // Forward declaration; GNode and GOrigin are an internal // (user-inaccessible) classes. class GNode; struct GOrigin; /** \addtogroup gapi_data_objects * @{ * * @brief Data-representing objects which can be used to build G-API * expressions. */ class GAPI_EXPORTS GMat { public: GMat(); // Empty constructor GMat(const GNode &n, std::size_t out); // Operation result constructor GOrigin& priv(); // Internal use only const GOrigin& priv() const; // Internal use only private: std::shared_ptr m_priv; }; class GAPI_EXPORTS GMatP : public GMat { public: using GMat::GMat; }; namespace gapi { namespace own { class Mat; }}//gapi::own /** @} */ /** * \addtogroup gapi_meta_args * @{ */ struct GAPI_EXPORTS GMatDesc { // FIXME: Default initializers in C++14 int depth; int chan; cv::gapi::own::Size size; // NB.: no multi-dimensional cases covered yet bool planar; GMatDesc(int d, int c, cv::gapi::own::Size s, bool p = false) : depth(d), chan(c), size(s), planar(p) {} GMatDesc() : GMatDesc(-1, -1, {-1,-1}) {} inline bool operator== (const GMatDesc &rhs) const { return depth == rhs.depth && chan == rhs.chan && size == rhs.size && planar == rhs.planar; } inline bool operator!= (const GMatDesc &rhs) const { return !(*this == rhs); } // Checks if the passed mat can be described by this descriptor // (it handles the case when // 1-channel mat can be reinterpreted as is (1-channel mat) // and as a 3-channel planar mat with height divided by 3) bool canDescribe(const cv::gapi::own::Mat& mat) const; // Meta combinator: return a new GMatDesc which differs in size by delta // (all other fields are taken unchanged from this GMatDesc) // FIXME: a better name? GMatDesc withSizeDelta(cv::gapi::own::Size delta) const { GMatDesc desc(*this); desc.size += delta; return desc; } #if !defined(GAPI_STANDALONE) GMatDesc withSizeDelta(cv::Size delta) const { return withSizeDelta(to_own(delta)); } GMatDesc withSize(cv::Size sz) const { return withSize(to_own(sz)); } bool canDescribe(const cv::Mat& mat) const; #endif // !defined(GAPI_STANDALONE) // Meta combinator: return a new GMatDesc which differs in size by delta // (all other fields are taken unchanged from this GMatDesc) // // This is an overload. GMatDesc withSizeDelta(int dx, int dy) const { return withSizeDelta(cv::gapi::own::Size{dx,dy}); } GMatDesc withSize(cv::gapi::own::Size sz) const { GMatDesc desc(*this); desc.size = sz; return desc; } // Meta combinator: return a new GMatDesc with specified data depth. // (all other fields are taken unchanged from this GMatDesc) GMatDesc withDepth(int ddepth) const { GAPI_Assert(CV_MAT_CN(ddepth) == 1 || ddepth == -1); GMatDesc desc(*this); if (ddepth != -1) desc.depth = ddepth; return desc; } // Meta combinator: return a new GMatDesc with specified data depth // and number of channels. // (all other fields are taken unchanged from this GMatDesc) GMatDesc withType(int ddepth, int dchan) const { GAPI_Assert(CV_MAT_CN(ddepth) == 1 || ddepth == -1); GMatDesc desc = withDepth(ddepth); desc.chan = dchan; return desc; } // Meta combinator: return a new GMatDesc with planar flag set // (no size changes are performed, only channel interpretation is changed // (interleaved -> planar) GMatDesc asPlanar() const { GAPI_Assert(planar == false); GMatDesc desc(*this); desc.planar = true; return desc; } // Meta combinator: return a new GMatDesc // reinterpreting 1-channel input as planar image // (size height is divided by plane number) GMatDesc asPlanar(int planes) const { GAPI_Assert(planar == false); GAPI_Assert(chan == 1); GAPI_Assert(planes > 1); GAPI_Assert(size.height % planes == 0); GMatDesc desc(*this); desc.size.height /= planes; desc.chan = planes; return desc.asPlanar(); } // Meta combinator: return a new GMatDesc with planar flag set to false // (no size changes are performed, only channel interpretation is changed // (planar -> interleaved) GMatDesc asInterleaved() const { GAPI_Assert(planar == true); GMatDesc desc(*this); desc.planar = false; return desc; } }; static inline GMatDesc empty_gmat_desc() { return GMatDesc{-1,-1,{-1,-1}}; } #if !defined(GAPI_STANDALONE) class Mat; GAPI_EXPORTS GMatDesc descr_of(const cv::Mat &mat); GAPI_EXPORTS GMatDesc descr_of(const cv::UMat &mat); #endif // !defined(GAPI_STANDALONE) /** @} */ namespace gapi { namespace own { GAPI_EXPORTS GMatDesc descr_of(const Mat &mat); }}//gapi::own GAPI_EXPORTS std::ostream& operator<<(std::ostream& os, const cv::GMatDesc &desc); } // namespace cv #endif // OPENCV_GAPI_GMAT_HPP