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81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
// 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) 2020-2021 Intel Corporation
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#ifndef OPENCV_GAPI_S11N_BASE_HPP
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#define OPENCV_GAPI_S11N_BASE_HPP
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#include <opencv2/gapi/own/assert.hpp>
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#include <opencv2/gapi/own/exports.hpp>
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namespace cv {
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namespace gapi {
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/**
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* @brief This namespace contains G-API serialization and
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* deserialization functions and data structures.
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*/
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namespace s11n {
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struct IOStream;
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struct IIStream;
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namespace detail {
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//! @addtogroup gapi_serialization
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//! @{
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struct NotImplemented {
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};
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/** @brief This structure allows to implement serialization routines for custom types.
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*
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* The default S11N for custom types is not implemented.
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*
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* @note When providing an overloaded implementation for S11N with your type
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* don't inherit it from NotImplemented structure.
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*
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* @note There are lots of overloaded >> and << operators for basic and OpenCV/G-API types
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* which can be utilized when serializing a custom type.
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*
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* Example of usage:
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* @snippet samples/cpp/tutorial_code/gapi/doc_snippets/api_ref_snippets.cpp S11N usage
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*
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*/
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template<typename T>
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struct S11N: public NotImplemented {
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/**
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* @brief This function allows user to serialize their custom type.
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*
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* @note The default overload throws an exception if called. User need to
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* properly overload the function to use it.
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*/
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static void serialize(IOStream &, const T &) {
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GAPI_Assert(false && "No serialization routine is provided!");
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}
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/**
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* @brief This function allows user to deserialize their custom type.
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*
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* @note The default overload throws an exception if called. User need to
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* properly overload the function to use it.
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*/
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static T deserialize(IIStream &) {
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GAPI_Assert(false && "No deserialization routine is provided!");
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}
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};
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/// @private -- Exclude this struct from OpenCV documentation
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template<typename T> struct has_S11N_spec {
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static constexpr bool value = !std::is_base_of<NotImplemented,
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S11N<typename std::decay<T>::type>>::value;
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};
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//! @} gapi_serialization
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} // namespace detail
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} // namespace s11n
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} // namespace gapi
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} // namespace cv
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#endif // OPENCV_GAPI_S11N_BASE_HPP
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