添加项目文件。

3rdparty/opencv/inc/opencv2/gapi/python/python.hpp

@@ -0,0 +1,67 @@
+// 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;
+};
+
+using Impl = std::function<cv::GRunArgs(const GPythonContext&)>;
+
+class GAPI_EXPORTS GPythonKernel
+{
+public:
+    GPythonKernel() = default;
+    GPythonKernel(Impl run);
+
+    cv::GRunArgs operator()(const GPythonContext& ctx);
+private:
+    Impl m_run;
+};
+
+class GAPI_EXPORTS GPythonFunctor : public cv::gapi::GFunctor
+{
+public:
+    using Meta = cv::GKernel::M;
+
+    GPythonFunctor(const char* id, const Meta &meta, const Impl& impl);
+
+    GKernelImpl    impl()    const override;
+    gapi::GBackend backend() const override;
+
+private:
+    GKernelImpl impl_;
+};
+
+} // namespace python
+} // namespace gapi
+} // namespace cv
+
+#endif // OPENCV_GAPI_PYTHON_API_HPP