Merge pull request #12310 from cv3d:chunks/enum_interface

* Cleanup macros and enable expansion of `__VA_ARGS__` for Visual Studio

* Macros for enum-arguments backwards compatibility

* Convert struct Param to enum struct

* Enabled ParamType.type for enum types

* Enabled `cv.read` and `cv.write` for enum types

* Rename unnamed enum to AAKAZE.DescriptorType

* Rename unnamed enum to AccessFlag

* Rename unnamed enum to AgastFeatureDetector.DetectorType

* Convert struct DrawMatchesFlags to enum struct

* Rename unnamed enum to FastFeatureDetector.DetectorType

* Rename unnamed enum to Formatter.FormatType

* Rename unnamed enum to HOGDescriptor.HistogramNormType

* Rename unnamed enum to DescriptorMatcher.MatcherType

* Rename unnamed enum to KAZE.DiffusivityType

* Rename unnamed enum to ORB.ScoreType

* Rename unnamed enum to UMatData.MemoryFlag

* Rename unnamed enum to _InputArray.KindFlag

* Rename unnamed enum to _OutputArray.DepthMask

* Convert normType enums to static const NormTypes

* Avoid conflicts with ElemType

* Rename unnamed enum to DescriptorStorageFormat

modules/core/misc/python/pyopencv_umat.hpp

@@ -7,6 +7,8 @@ typedef std::vector<Range> vector_Range;
 CV_PY_TO_CLASS(UMat);
 CV_PY_FROM_CLASS(UMat);
 CV_PY_TO_ENUM(UMatUsageFlags);
+CV_PY_FROM_ENUM(AccessFlag);
+CV_PY_TO_ENUM(AccessFlag);
 
 static bool cv_mappable_to(const Ptr<Mat>& src, Ptr<UMat>& dst)
 {

modules/core/misc/python/shadow_umat.hpp

@@ -50,7 +50,7 @@ public:
     The UMat instance should be kept alive during the use of the handle to prevent the buffer to be
     returned to the OpenCV buffer pool.
     */
-    CV_WRAP void* handle(int accessFlags) const;
+    CV_WRAP void* handle(AccessFlag accessFlags) const;
 
     // offset of the submatrix (or 0)
     CV_PROP_RW size_t offset;