comparison PyFeature.h @ 37:27bab3a16c9a vampy2final

new branch Vampy2final

+/*
+
+ * Vampy : This plugin is a wrapper around the Vamp plugin API.
+ * It allows for writing Vamp plugins in Python.
+
+ * Centre for Digital Music, Queen Mary University of London.
+ * Copyright (C) 2008-2009 Gyorgy Fazekas, QMUL. (See Vamp sources 
+ * for licence information.)
+
+*/
+
+/*
+NOTES: There are two ways to implement the Vamp::Feature wrapper.
+1) We could keep a Vamp::Feature in the object and
+convert the values on the fly as they are inserted.
+However, this requires a way to convert back to Python for
+this object to be fully usable in python code. These conversions 
+are otherwise unnecessary.
+
+2) Keep the python attribute objects in a dict as it is normally 
+done in python classes, and convert when the object is returned.
+This way the object is usable by the interpreter until it is returned
+to the C++ plugin wrapper.
+This is different form the Vampy:PyRealTime implementation where the
+two-way conversion makes more sense (in fact required). Note: For
+a host implementation option 1) will be required.
+
+*/
+
+#ifndef _PYFEATURE_H_
+#define _PYFEATURE_H_
+
+#include "vamp-sdk/Plugin.h"
+// #include "PyTypeInterface.h"
+
+
+typedef struct {
+		PyObject_HEAD
+		PyObject *dict; 
+		// Vamp::Plugin::Feature *feature;
+		/// pointer to type interface required: PyTypeInterface ti;
+} FeatureObject; 
+
+PyAPI_DATA(PyTypeObject) Feature_Type;
+
+#define PyFeature_CheckExact(v)	((v)->ob_type == &Feature_Type)
+#define PyFeature_Check(v) PyObject_TypeCheck(v, &Feature_Type)
+
+///fast macro version as per API convention
+#define PyFeature_AS_DICT(v) ((const FeatureObject* const) (v))->dict
+// #define PyFeature_AS_FEATURE(v) ((const FeatureObject* const) (v))->feature
+ 
+
+/*		  		 	  PyFeature C++ API  	  		  				*/
+
+/* Not required here: 
+ 	we will never have to pass a feature back from the wrapper */
+// PyAPI_FUNC(PyObject *) 
+// PyFeature_FromFeature(Vamp::Plugin::Feature&);
+
+// PyAPI_FUNC(const Vamp::Plugin::Feature*) 
+// PyFeature_AsFeature (PyObject *self);
+
+
+
+#endif