Merge pull request #19322 from TolyaTalamanov:at/python-callbacks
[G-API] Introduce cv.gin/cv.descr_of for python * Implement cv.gin/cv.descr_of * Fix macos build * Fix gcomputation tests * Add test * Add using to a void exceeded length for windows build * Add using to a void exceeded length for windows build * Fix comments to review * Fix comments to review * Update from latest master * Avoid graph compilation to obtain in/out info * Fix indentation * Fix comments to review * Avoid using default in switches * Post output meta for giebackend
This commit is contained in:
Anatoliy Talamanov
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GitHub
GitHub
parent
7bcb51eded
commit
eb82ba36a3
@@ -8,6 +8,32 @@ using gapi_GKernelPackage = cv::gapi::GKernelPackage;
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using gapi_GNetPackage = cv::gapi::GNetPackage;
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using gapi_ie_PyParams = cv::gapi::ie::PyParams;
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using gapi_wip_IStreamSource_Ptr = cv::Ptr<cv::gapi::wip::IStreamSource>;
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using detail_ExtractArgsCallback = cv::detail::ExtractArgsCallback;
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using detail_ExtractMetaCallback = cv::detail::ExtractMetaCallback;
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// NB: Python wrapper generate T_U for T<U>
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// This behavior is only observed for inputs
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using GOpaque_bool = cv::GOpaque<bool>;
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using GOpaque_int = cv::GOpaque<int>;
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using GOpaque_double = cv::GOpaque<double>;
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using GOpaque_float = cv::GOpaque<double>;
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using GOpaque_string = cv::GOpaque<std::string>;
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using GOpaque_Point = cv::GOpaque<cv::Point>;
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using GOpaque_Point2f = cv::GOpaque<cv::Point2f>;
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using GOpaque_Size = cv::GOpaque<cv::Size>;
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using GOpaque_Rect = cv::GOpaque<cv::Rect>;
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using GArray_bool = cv::GArray<bool>;
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using GArray_int = cv::GArray<int>;
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using GArray_double = cv::GArray<double>;
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using GArray_float = cv::GArray<double>;
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using GArray_string = cv::GArray<std::string>;
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using GArray_Point = cv::GArray<cv::Point>;
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using GArray_Point2f = cv::GArray<cv::Point2f>;
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using GArray_Size = cv::GArray<cv::Size>;
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using GArray_Rect = cv::GArray<cv::Rect>;
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using GArray_Scalar = cv::GArray<cv::Scalar>;
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using GArray_Mat = cv::GArray<cv::Mat>;
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// FIXME: Python wrapper generate code without namespace std,
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// so it cause error: "string wasn't declared"
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@@ -32,38 +58,76 @@ bool pyopencv_to(PyObject* obj, GRunArgs& value, const ArgInfo& info)
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return pyopencv_to_generic_vec(obj, value, info);
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}
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static PyObject* from_grunarg(const GRunArg& v)
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template <>
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PyObject* pyopencv_from(const cv::detail::OpaqueRef& o)
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{
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switch (o.getKind())
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{
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case cv::detail::OpaqueKind::CV_BOOL : return pyopencv_from(o.rref<bool>());
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case cv::detail::OpaqueKind::CV_INT : return pyopencv_from(o.rref<int>());
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case cv::detail::OpaqueKind::CV_DOUBLE : return pyopencv_from(o.rref<double>());
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case cv::detail::OpaqueKind::CV_FLOAT : return pyopencv_from(o.rref<float>());
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case cv::detail::OpaqueKind::CV_STRING : return pyopencv_from(o.rref<std::string>());
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case cv::detail::OpaqueKind::CV_POINT : return pyopencv_from(o.rref<cv::Point>());
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case cv::detail::OpaqueKind::CV_POINT2F : return pyopencv_from(o.rref<cv::Point2f>());
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case cv::detail::OpaqueKind::CV_SIZE : return pyopencv_from(o.rref<cv::Size>());
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case cv::detail::OpaqueKind::CV_RECT : return pyopencv_from(o.rref<cv::Rect>());
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case cv::detail::OpaqueKind::CV_UNKNOWN : break;
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case cv::detail::OpaqueKind::CV_UINT64 : break;
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case cv::detail::OpaqueKind::CV_SCALAR : break;
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case cv::detail::OpaqueKind::CV_MAT : break;
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case cv::detail::OpaqueKind::CV_DRAW_PRIM : break;
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}
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PyErr_SetString(PyExc_TypeError, "Unsupported GOpaque type");
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return NULL;
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};
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template <>
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PyObject* pyopencv_from(const cv::detail::VectorRef& v)
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{
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switch (v.getKind())
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{
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case cv::detail::OpaqueKind::CV_BOOL : return pyopencv_from_generic_vec(v.rref<bool>());
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case cv::detail::OpaqueKind::CV_INT : return pyopencv_from_generic_vec(v.rref<int>());
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case cv::detail::OpaqueKind::CV_DOUBLE : return pyopencv_from_generic_vec(v.rref<double>());
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case cv::detail::OpaqueKind::CV_FLOAT : return pyopencv_from_generic_vec(v.rref<float>());
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case cv::detail::OpaqueKind::CV_STRING : return pyopencv_from_generic_vec(v.rref<std::string>());
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case cv::detail::OpaqueKind::CV_POINT : return pyopencv_from_generic_vec(v.rref<cv::Point>());
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case cv::detail::OpaqueKind::CV_POINT2F : return pyopencv_from_generic_vec(v.rref<cv::Point2f>());
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case cv::detail::OpaqueKind::CV_SIZE : return pyopencv_from_generic_vec(v.rref<cv::Size>());
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case cv::detail::OpaqueKind::CV_RECT : return pyopencv_from_generic_vec(v.rref<cv::Rect>());
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case cv::detail::OpaqueKind::CV_SCALAR : return pyopencv_from_generic_vec(v.rref<cv::Scalar>());
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case cv::detail::OpaqueKind::CV_MAT : return pyopencv_from_generic_vec(v.rref<cv::Mat>());
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case cv::detail::OpaqueKind::CV_UNKNOWN : break;
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case cv::detail::OpaqueKind::CV_UINT64 : break;
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case cv::detail::OpaqueKind::CV_DRAW_PRIM : break;
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}
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PyErr_SetString(PyExc_TypeError, "Unsupported GArray type");
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return NULL;
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}
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template <>
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PyObject* pyopencv_from(const GRunArg& v)
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{
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switch (v.index())
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{
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case GRunArg::index_of<cv::Mat>():
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{
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const auto& m = util::get<cv::Mat>(v);
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return pyopencv_from(m);
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}
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return pyopencv_from(util::get<cv::Mat>(v));
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case GRunArg::index_of<cv::Scalar>():
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{
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const auto& s = util::get<cv::Scalar>(v);
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return pyopencv_from(s);
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}
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return pyopencv_from(util::get<cv::Scalar>(v));
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case GRunArg::index_of<cv::detail::VectorRef>():
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{
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const auto& vref = util::get<cv::detail::VectorRef>(v);
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switch (vref.getKind())
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{
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case cv::detail::OpaqueKind::CV_POINT2F:
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return pyopencv_from(vref.rref<cv::Point2f>());
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default:
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PyErr_SetString(PyExc_TypeError, "Unsupported kind for GArray");
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return NULL;
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}
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}
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default:
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PyErr_SetString(PyExc_TypeError, "Failed to unpack GRunArgs");
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return NULL;
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return pyopencv_from(util::get<cv::detail::VectorRef>(v));
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case GRunArg::index_of<cv::detail::OpaqueRef>():
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return pyopencv_from(util::get<cv::detail::OpaqueRef>(v));
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}
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GAPI_Assert(false);
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PyErr_SetString(PyExc_TypeError, "Failed to unpack GRunArgs");
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return NULL;
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}
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template<>
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@@ -74,7 +138,7 @@ PyObject* pyopencv_from(const GRunArgs& value)
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// NB: It doesn't make sense to return list with a single element
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if (n == 1)
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{
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PyObject* item = from_grunarg(value[0]);
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PyObject* item = pyopencv_from(value[0]);
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if(!item)
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{
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return NULL;
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@@ -85,7 +149,7 @@ PyObject* pyopencv_from(const GRunArgs& value)
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PyObject* list = PyList_New(n);
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for(i = 0; i < n; ++i)
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{
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PyObject* item = from_grunarg(value[i]);
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PyObject* item = pyopencv_from(value[i]);
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if(!item)
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{
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Py_DECREF(list);
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@@ -110,6 +174,26 @@ PyObject* pyopencv_from(const GMetaArgs& value)
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return pyopencv_from_generic_vec(value);
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}
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template <typename T>
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void pyopencv_to_with_check(PyObject* from, T& to, const std::string& msg = "")
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{
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if (!pyopencv_to(from, to, ArgInfo("", false)))
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{
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cv::util::throw_error(std::logic_error(msg));
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}
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}
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template <typename T>
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void pyopencv_to_generic_vec_with_check(PyObject* from,
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std::vector<T>& to,
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const std::string& msg = "")
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{
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if (!pyopencv_to_generic_vec(from, to, ArgInfo("", false)))
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{
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cv::util::throw_error(std::logic_error(msg));
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}
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}
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template <typename T>
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static PyObject* extract_proto_args(PyObject* py_args, PyObject* kw)
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{
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@@ -128,9 +212,13 @@ static PyObject* extract_proto_args(PyObject* py_args, PyObject* kw)
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{
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args.emplace_back(reinterpret_cast<pyopencv_GMat_t*>(item)->v);
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}
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else if (PyObject_TypeCheck(item, reinterpret_cast<PyTypeObject*>(pyopencv_GArrayP2f_TypePtr)))
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else if (PyObject_TypeCheck(item, reinterpret_cast<PyTypeObject*>(pyopencv_GOpaqueT_TypePtr)))
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{
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args.emplace_back(reinterpret_cast<pyopencv_GArrayP2f_t*>(item)->v.strip());
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args.emplace_back(reinterpret_cast<pyopencv_GOpaqueT_t*>(item)->v.strip());
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}
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else if (PyObject_TypeCheck(item, reinterpret_cast<PyTypeObject*>(pyopencv_GArrayT_TypePtr)))
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{
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args.emplace_back(reinterpret_cast<pyopencv_GArrayT_t*>(item)->v.strip());
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}
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else
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{
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@@ -152,63 +240,270 @@ static PyObject* pyopencv_cv_GOut(PyObject* , PyObject* py_args, PyObject* kw)
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return extract_proto_args<GProtoOutputArgs>(py_args, kw);
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}
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static PyObject* pyopencv_cv_gin(PyObject* , PyObject* py_args, PyObject* kw)
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static cv::detail::OpaqueRef extract_opaque_ref(PyObject* from, cv::detail::OpaqueKind kind)
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{
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using namespace cv;
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GRunArgs args;
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Py_ssize_t size = PyTuple_Size(py_args);
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for (int i = 0; i < size; ++i)
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#define HANDLE_CASE(T, O) case cv::detail::OpaqueKind::CV_##T: \
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{ \
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O obj{}; \
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pyopencv_to_with_check(from, obj, "Failed to obtain " # O); \
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return cv::detail::OpaqueRef{std::move(obj)}; \
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}
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#define UNSUPPORTED(T) case cv::detail::OpaqueKind::CV_##T: break
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switch (kind)
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{
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PyObject* item = PyTuple_GetItem(py_args, i);
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if (PyTuple_Check(item))
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HANDLE_CASE(BOOL, bool);
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HANDLE_CASE(INT, int);
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HANDLE_CASE(DOUBLE, double);
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HANDLE_CASE(FLOAT, float);
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HANDLE_CASE(STRING, std::string);
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HANDLE_CASE(POINT, cv::Point);
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HANDLE_CASE(POINT2F, cv::Point2f);
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HANDLE_CASE(SIZE, cv::Size);
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HANDLE_CASE(RECT, cv::Rect);
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UNSUPPORTED(UNKNOWN);
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UNSUPPORTED(UINT64);
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UNSUPPORTED(SCALAR);
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UNSUPPORTED(MAT);
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UNSUPPORTED(DRAW_PRIM);
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}
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#undef HANDLE_CASE
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#undef UNSUPPORTED
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util::throw_error(std::logic_error("Unsupported type for GOpaqueT"));
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}
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static cv::detail::VectorRef extract_vector_ref(PyObject* from, cv::detail::OpaqueKind kind)
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{
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#define HANDLE_CASE(T, O) case cv::detail::OpaqueKind::CV_##T: \
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{ \
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std::vector<O> obj; \
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pyopencv_to_generic_vec_with_check(from, obj, "Failed to obtain vector of " # O); \
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return cv::detail::VectorRef{std::move(obj)}; \
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}
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#define UNSUPPORTED(T) case cv::detail::OpaqueKind::CV_##T: break
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switch (kind)
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{
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HANDLE_CASE(BOOL, bool);
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HANDLE_CASE(INT, int);
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HANDLE_CASE(DOUBLE, double);
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HANDLE_CASE(FLOAT, float);
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HANDLE_CASE(STRING, std::string);
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HANDLE_CASE(POINT, cv::Point);
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HANDLE_CASE(POINT2F, cv::Point2f);
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HANDLE_CASE(SIZE, cv::Size);
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HANDLE_CASE(RECT, cv::Rect);
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HANDLE_CASE(SCALAR, cv::Scalar);
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HANDLE_CASE(MAT, cv::Mat);
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UNSUPPORTED(UNKNOWN);
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UNSUPPORTED(UINT64);
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UNSUPPORTED(DRAW_PRIM);
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#undef HANDLE_CASE
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#undef UNSUPPORTED
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}
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util::throw_error(std::logic_error("Unsupported type for GOpaqueT"));
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}
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static cv::GRunArg extract_run_arg(const cv::GTypeInfo& info, PyObject* item)
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{
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switch (info.shape)
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{
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case cv::GShape::GMAT:
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{
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cv::Scalar s;
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if (pyopencv_to(item, s, ArgInfo("scalar", false)))
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// NB: In case streaming it can be IStreamSource or cv::Mat
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if (PyObject_TypeCheck(item,
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reinterpret_cast<PyTypeObject*>(pyopencv_gapi_wip_IStreamSource_TypePtr)))
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{
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args.emplace_back(s);
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cv::gapi::wip::IStreamSource::Ptr source =
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reinterpret_cast<pyopencv_gapi_wip_IStreamSource_t*>(item)->v;
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return source;
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}
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else
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{
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PyErr_SetString(PyExc_TypeError, "Failed convert tuple to cv::Scalar");
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return NULL;
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cv::Mat obj;
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pyopencv_to_with_check(item, obj, "Failed to obtain cv::Mat");
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return obj;
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}
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}
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else if (PyArray_Check(item))
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case cv::GShape::GSCALAR:
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{
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cv::Mat m;
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if (pyopencv_to(item, m, ArgInfo("mat", false)))
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{
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args.emplace_back(m);
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}
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else
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{
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PyErr_SetString(PyExc_TypeError, "Failed convert array to cv::Mat");
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return NULL;
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}
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cv::Scalar obj;
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pyopencv_to_with_check(item, obj, "Failed to obtain cv::Scalar");
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return obj;
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}
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else if (PyObject_TypeCheck(item,
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reinterpret_cast<PyTypeObject*>(pyopencv_gapi_wip_IStreamSource_TypePtr)))
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case cv::GShape::GOPAQUE:
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{
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cv::gapi::wip::IStreamSource::Ptr source =
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reinterpret_cast<pyopencv_gapi_wip_IStreamSource_t*>(item)->v;
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args.emplace_back(source);
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return extract_opaque_ref(item, info.kind);
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}
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else
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case cv::GShape::GARRAY:
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{
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PyErr_SetString(PyExc_TypeError, "cv.gin can works only with cv::Mat,"
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"cv::Scalar, cv::gapi::wip::IStreamSource::Ptr");
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return NULL;
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return extract_vector_ref(item, info.kind);
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}
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case cv::GShape::GFRAME:
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{
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break;
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}
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}
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return pyopencv_from_generic_vec(args);
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util::throw_error(std::logic_error("Unsupported output shape"));
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}
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static PyObject* pyopencv_cv_gout(PyObject* o, PyObject* py_args, PyObject* kw)
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static cv::GRunArgs extract_run_args(const cv::GTypesInfo& info, PyObject* py_args)
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{
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return pyopencv_cv_gin(o, py_args, kw);
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cv::GRunArgs args;
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Py_ssize_t tuple_size = PyTuple_Size(py_args);
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args.reserve(tuple_size);
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for (int i = 0; i < tuple_size; ++i)
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{
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args.push_back(extract_run_arg(info[i], PyTuple_GetItem(py_args, i)));
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}
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return args;
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}
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static cv::GMetaArg extract_meta_arg(const cv::GTypeInfo& info, PyObject* item)
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{
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switch (info.shape)
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{
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case cv::GShape::GMAT:
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{
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cv::Mat obj;
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pyopencv_to_with_check(item, obj, "Failed to obtain cv::Mat");
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return cv::GMetaArg{cv::descr_of(obj)};
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}
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case cv::GShape::GSCALAR:
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{
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cv::Scalar obj;
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pyopencv_to_with_check(item, obj, "Failed to obtain cv::Scalar");
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return cv::GMetaArg{cv::descr_of(obj)};
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}
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case cv::GShape::GARRAY:
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{
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return cv::GMetaArg{cv::empty_array_desc()};
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}
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case cv::GShape::GOPAQUE:
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{
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return cv::GMetaArg{cv::empty_gopaque_desc()};
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}
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case cv::GShape::GFRAME:
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{
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// NB: Isn't supported yet.
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break;
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}
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}
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util::throw_error(std::logic_error("Unsupported output shape"));
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}
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static cv::GMetaArgs extract_meta_args(const cv::GTypesInfo& info, PyObject* py_args)
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{
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cv::GMetaArgs metas;
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Py_ssize_t tuple_size = PyTuple_Size(py_args);
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metas.reserve(tuple_size);
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for (int i = 0; i < tuple_size; ++i)
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{
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metas.push_back(extract_meta_arg(info[i], PyTuple_GetItem(py_args, i)));
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}
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return metas;
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}
|
||||
|
||||
static PyObject* pyopencv_cv_gin(PyObject*, PyObject* py_args, PyObject*)
|
||||
{
|
||||
Py_INCREF(py_args);
|
||||
auto callback = cv::detail::ExtractArgsCallback{[=](const cv::GTypesInfo& info)
|
||||
{
|
||||
PyGILState_STATE gstate;
|
||||
gstate = PyGILState_Ensure();
|
||||
|
||||
cv::GRunArgs args;
|
||||
try
|
||||
{
|
||||
args = extract_run_args(info, py_args);
|
||||
}
|
||||
catch (...)
|
||||
{
|
||||
PyGILState_Release(gstate);
|
||||
throw;
|
||||
}
|
||||
PyGILState_Release(gstate);
|
||||
return args;
|
||||
}};
|
||||
|
||||
return pyopencv_from(callback);
|
||||
}
|
||||
|
||||
static PyObject* pyopencv_cv_descr_of(PyObject*, PyObject* py_args, PyObject*)
|
||||
{
|
||||
Py_INCREF(py_args);
|
||||
auto callback = cv::detail::ExtractMetaCallback{[=](const cv::GTypesInfo& info)
|
||||
{
|
||||
PyGILState_STATE gstate;
|
||||
gstate = PyGILState_Ensure();
|
||||
|
||||
cv::GMetaArgs args;
|
||||
try
|
||||
{
|
||||
args = extract_meta_args(info, py_args);
|
||||
}
|
||||
catch (...)
|
||||
{
|
||||
PyGILState_Release(gstate);
|
||||
throw;
|
||||
}
|
||||
PyGILState_Release(gstate);
|
||||
return args;
|
||||
}};
|
||||
return pyopencv_from(callback);
|
||||
}
|
||||
|
||||
template<typename T>
|
||||
struct PyOpenCV_Converter<cv::GArray<T>>
|
||||
{
|
||||
static PyObject* from(const cv::GArray<T>& p)
|
||||
{
|
||||
return pyopencv_from(cv::GArrayT(p));
|
||||
}
|
||||
static bool to(PyObject *obj, cv::GArray<T>& value, const ArgInfo& info)
|
||||
{
|
||||
if (PyObject_TypeCheck(obj, reinterpret_cast<PyTypeObject*>(pyopencv_GArrayT_TypePtr)))
|
||||
{
|
||||
auto& array = reinterpret_cast<pyopencv_GArrayT_t*>(obj)->v;
|
||||
try {
|
||||
value = cv::util::get<cv::GArray<T>>(array.arg());
|
||||
} catch (...) {
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
};
|
||||
|
||||
template<typename T>
|
||||
struct PyOpenCV_Converter<cv::GOpaque<T>>
|
||||
{
|
||||
static PyObject* from(const cv::GOpaque<T>& p)
|
||||
{
|
||||
return pyopencv_from(cv::GOpaqueT(p));
|
||||
}
|
||||
static bool to(PyObject *obj, cv::GOpaque<T>& value, const ArgInfo& info)
|
||||
{
|
||||
if (PyObject_TypeCheck(obj, reinterpret_cast<PyTypeObject*>(pyopencv_GOpaqueT_TypePtr)))
|
||||
{
|
||||
auto& opaque = reinterpret_cast<pyopencv_GOpaqueT_t*>(obj)->v;
|
||||
try {
|
||||
value = cv::util::get<cv::GOpaque<T>>(opaque.arg());
|
||||
} catch (...) {
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
};
|
||||
|
||||
#endif // HAVE_OPENCV_GAPI
|
||||
#endif // OPENCV_GAPI_PYOPENCV_GAPI_HPP
|
||||
|
||||
Reference in New Issue
Block a user