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- // 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) 2021 Intel Corporation
- #ifndef OPENCV_GAPI_PYTHON_API_HPP
- #define OPENCV_GAPI_PYTHON_API_HPP
- #include <opencv2/gapi/gkernel.hpp> // GKernelPackage
- #include <opencv2/gapi/own/exports.hpp> // GAPI_EXPORTS
- namespace cv {
- namespace gapi {
- /**
- * @brief This namespace contains G-API Python backend functions,
- * structures, and symbols.
- *
- * This functionality is required to enable G-API custom operations
- * and kernels when using G-API from Python, no need to use it in the
- * C++ form.
- */
- namespace python {
- GAPI_EXPORTS cv::gapi::GBackend backend();
- struct GPythonContext
- {
- const cv::GArgs &ins;
- const cv::GMetaArgs &in_metas;
- const cv::GTypesInfo &out_info;
- cv::optional<cv::GArg> m_state;
- };
- using Impl = std::function<cv::GRunArgs(const GPythonContext&)>;
- using Setup = std::function<cv::GArg(const GMetaArgs&, const GArgs&)>;
- class GAPI_EXPORTS GPythonKernel
- {
- public:
- GPythonKernel() = default;
- GPythonKernel(Impl run, Setup setup);
- Impl run;
- Setup setup = nullptr;
- bool is_stateful = false;
- };
- class GAPI_EXPORTS GPythonFunctor : public cv::gapi::GFunctor
- {
- public:
- using Meta = cv::GKernel::M;
- GPythonFunctor(const char* id, const Meta& meta, const Impl& impl,
- const Setup& setup = nullptr);
- GKernelImpl impl() const override;
- gapi::GBackend backend() const override;
- private:
- GKernelImpl impl_;
- };
- } // namespace python
- } // namespace gapi
- } // namespace cv
- #endif // OPENCV_GAPI_PYTHON_API_HPP
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