Mercurial > hg > vampy
diff PyOutputDescriptor.cpp @ 37:27bab3a16c9a vampy2final
new branch Vampy2final
author | fazekasgy |
---|---|
date | Mon, 05 Oct 2009 11:28:00 +0000 |
parents | |
children | af9c4cee95a8 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/PyOutputDescriptor.cpp Mon Oct 05 11:28:00 2009 +0000 @@ -0,0 +1,156 @@ +/* + + * 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.) + +*/ + +#include <Python.h> +#include "PyOutputDescriptor.h" +#include "vamp-sdk/Plugin.h" +#include <string> +#include "PyTypeInterface.h" + +using namespace std; +using namespace Vamp; +using Vamp::Plugin; + +/* OutputDescriptor Object's Methods */ +//these objects have no callable methods + +/* PyOutputDescriptor methods implementing protocols */ +// these functions are called by the interpreter automatically + +/* New OutputDescriptor object */ +static PyObject * +OutputDescriptor_new(PyTypeObject *type, PyObject *args, PyObject *kw) +{ + OutputDescriptorObject *self = + (OutputDescriptorObject*)type->tp_alloc(type, 0); + + if (self == NULL) return NULL; + self->dict = PyDict_New(); + if (self->dict == NULL) return NULL; + + /// allow copying objects + if (args and PyTuple_Size(args) == 1) { + PyObject* arg = PyTuple_GET_ITEM(args,0); + if (PyOutputDescriptor_CheckExact(arg)) + PyDict_Merge(self->dict,PyOutputDescriptor_AS_DICT(arg),0); + else if (PyDict_CheckExact(arg)) + PyDict_Merge(self->dict,arg,0); + else { + PyErr_SetString(PyExc_TypeError, + "OutputDescriptor takes zero or one PyOutputDescriptor or dictionary arguments."); + return NULL; + } + } + return (PyObject *) self; +} + + +/* DESTRUCTOR: delete type object */ +static void +OutputDescriptorObject_dealloc(OutputDescriptorObject *self) +{ + Py_XDECREF(self->dict); + PyObject_Del(self); +} + + +/* Set attributes */ +static int +OutputDescriptor_setattr(OutputDescriptorObject *self, char *name, PyObject *v) +{ + if (v == NULL) { + int rv = PyDict_DelItemString(self->dict, name); + if (rv < 0) + PyErr_SetString(PyExc_AttributeError,"non-existing OutputDescriptor attribute"); + return rv; + } + else + return PyDict_SetItemString(self->dict, name, v); +} + + +/* Get attributes */ +static PyObject * +OutputDescriptor_getattr(OutputDescriptorObject *self, char *name) +{ + if (self->dict != NULL) { + PyObject *v = PyDict_GetItemString(self->dict, name); + if (v != NULL) + { + Py_INCREF(v); + return v; + } + } + return NULL; +} + + +/* String representation */ +static PyObject * +OutputDescriptor_repr(PyObject *self) +{ + OutputDescriptorObject* v = (OutputDescriptorObject*)self; + if (v->dict) return PyDict_Type.tp_repr((PyObject *)v->dict); + else return PyString_FromString("OutputDescriptor()"); +} + +#define OutputDescriptor_alloc PyType_GenericAlloc +#define OutputDescriptor_free PyObject_Del + + +/* REAL-TIME TYPE OBJECT */ + +PyTypeObject OutputDescriptor_Type = { + PyObject_HEAD_INIT(NULL) + 0, /*ob_size*/ + "vampy.OutputDescriptor",/*tp_name*/ + sizeof(OutputDescriptorObject), /*tp_basicsize*/ + 0, /*tp_itemsize*/ + (destructor)OutputDescriptorObject_dealloc, /*tp_dealloc*/ + 0, /*tp_print*/ + (getattrfunc)OutputDescriptor_getattr, /*tp_getattr*/ + (setattrfunc)OutputDescriptor_setattr, /*tp_setattr*/ + 0, /*tp_compare*/ + OutputDescriptor_repr, /*tp_repr*/ + 0, /*tp_as_number*/ + 0, /*tp_as_sequence*/ + 0, /*tp_as_mapping*/ + 0, /*tp_hash*/ + 0, /*tp_call*/ + 0, /*tp_str*/ + 0, /*tp_getattro*/ + 0, /*tp_setattro*/ + 0, /*tp_as_buffer*/ + Py_TPFLAGS_DEFAULT, /*tp_flags*/ + 0, /*tp_doc*/ + 0, /*tp_traverse*/ + 0, /*tp_clear*/ + 0, /*tp_richcompare*/ + 0, /*tp_weaklistoffset*/ + 0, /*tp_iter*/ + 0, /*tp_iternext*/ + 0, /*tp_methods*/ //TypeObject Methods + 0, /*tp_members*/ + 0, /*tp_getset*/ + 0, /*tp_base*/ + 0, /*tp_dict*/ + 0, /*tp_descr_get*/ + 0, /*tp_descr_set*/ + 0, /*tp_dictoffset*/ + 0, /*tp_init*/ + OutputDescriptor_alloc, /*tp_alloc*/ + OutputDescriptor_new, /*tp_new*/ + OutputDescriptor_free, /*tp_free*/ + 0, /*tp_is_gc*/ +}; + +/* PyOutputDescriptor C++ API */ +