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annotate PyOutputDescriptor.cpp @ 53:7e59caea821b

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* Make a better job of preloading Python, especially when it's in a framework. Go for the Python file in the frameworks directory in preference to any libpythonX.Y.dylib. Particularly, don't try to preload any library without an absolute path until we've exhausted all our framework possibilities (so as to avoid picking up an ancient system library).
author cannam
date Fri, 09 Oct 2009 13:48:25 +0000
parents c1e4f706ca9a
children
rev   line source
fazekasgy@37 1 /*
fazekasgy@37 2
fazekasgy@37 3 * Vampy : This plugin is a wrapper around the Vamp plugin API.
fazekasgy@37 4 * It allows for writing Vamp plugins in Python.
fazekasgy@37 5
fazekasgy@37 6 * Centre for Digital Music, Queen Mary University of London.
fazekasgy@37 7 * Copyright (C) 2008-2009 Gyorgy Fazekas, QMUL. (See Vamp sources
fazekasgy@37 8 * for licence information.)
fazekasgy@37 9
fazekasgy@37 10 */
fazekasgy@37 11
fazekasgy@37 12 #include <Python.h>
fazekasgy@37 13 #include "PyOutputDescriptor.h"
fazekasgy@37 14 #include "vamp-sdk/Plugin.h"
fazekasgy@37 15 #include <string>
fazekasgy@37 16 #include "PyTypeInterface.h"
fazekasgy@37 17
fazekasgy@37 18 using namespace std;
fazekasgy@37 19 using namespace Vamp;
fazekasgy@37 20 using Vamp::Plugin;
fazekasgy@37 21
fazekasgy@37 22 /* OutputDescriptor Object's Methods */
fazekasgy@37 23 //these objects have no callable methods
fazekasgy@37 24
fazekasgy@37 25 /* PyOutputDescriptor methods implementing protocols */
fazekasgy@37 26 // these functions are called by the interpreter automatically
fazekasgy@37 27
fazekasgy@37 28 /* New OutputDescriptor object */
fazekasgy@37 29 static PyObject *
fazekasgy@37 30 OutputDescriptor_new(PyTypeObject *type, PyObject *args, PyObject *kw)
fazekasgy@37 31 {
fazekasgy@37 32 OutputDescriptorObject *self =
fazekasgy@37 33 (OutputDescriptorObject*)type->tp_alloc(type, 0);
fazekasgy@37 34
fazekasgy@37 35 if (self == NULL) return NULL;
fazekasgy@37 36 self->dict = PyDict_New();
fazekasgy@37 37 if (self->dict == NULL) return NULL;
fazekasgy@37 38
fazekasgy@37 39 /// allow copying objects
cannam@46 40 if (args && PyTuple_Size(args) == 1) {
fazekasgy@37 41 PyObject* arg = PyTuple_GET_ITEM(args,0);
fazekasgy@37 42 if (PyOutputDescriptor_CheckExact(arg))
fazekasgy@37 43 PyDict_Merge(self->dict,PyOutputDescriptor_AS_DICT(arg),0);
fazekasgy@37 44 else if (PyDict_CheckExact(arg))
fazekasgy@37 45 PyDict_Merge(self->dict,arg,0);
fazekasgy@37 46 else {
fazekasgy@37 47 PyErr_SetString(PyExc_TypeError,
fazekasgy@37 48 "OutputDescriptor takes zero or one PyOutputDescriptor or dictionary arguments.");
fazekasgy@37 49 return NULL;
fazekasgy@37 50 }
fazekasgy@37 51 }
fazekasgy@37 52 return (PyObject *) self;
fazekasgy@37 53 }
fazekasgy@37 54
fazekasgy@37 55
fazekasgy@37 56 /* DESTRUCTOR: delete type object */
fazekasgy@37 57 static void
fazekasgy@37 58 OutputDescriptorObject_dealloc(OutputDescriptorObject *self)
fazekasgy@37 59 {
fazekasgy@37 60 Py_XDECREF(self->dict);
fazekasgy@37 61 PyObject_Del(self);
fazekasgy@37 62 }
fazekasgy@37 63
fazekasgy@37 64
fazekasgy@37 65 /* Set attributes */
fazekasgy@37 66 static int
fazekasgy@37 67 OutputDescriptor_setattr(OutputDescriptorObject *self, char *name, PyObject *v)
fazekasgy@37 68 {
fazekasgy@37 69 if (v == NULL) {
fazekasgy@37 70 int rv = PyDict_DelItemString(self->dict, name);
fazekasgy@37 71 if (rv < 0)
fazekasgy@37 72 PyErr_SetString(PyExc_AttributeError,"non-existing OutputDescriptor attribute");
fazekasgy@37 73 return rv;
fazekasgy@37 74 }
fazekasgy@37 75 else
fazekasgy@37 76 return PyDict_SetItemString(self->dict, name, v);
fazekasgy@37 77 }
fazekasgy@37 78
fazekasgy@37 79
fazekasgy@37 80 /* Get attributes */
fazekasgy@37 81 static PyObject *
fazekasgy@37 82 OutputDescriptor_getattr(OutputDescriptorObject *self, char *name)
fazekasgy@37 83 {
fazekasgy@37 84 if (self->dict != NULL) {
fazekasgy@37 85 PyObject *v = PyDict_GetItemString(self->dict, name);
fazekasgy@37 86 if (v != NULL)
fazekasgy@37 87 {
fazekasgy@37 88 Py_INCREF(v);
fazekasgy@37 89 return v;
fazekasgy@37 90 }
fazekasgy@51 91 PyErr_SetString(PyExc_AttributeError,"non-existing OutputDescriptor attribute");
fazekasgy@37 92 }
fazekasgy@37 93 return NULL;
fazekasgy@37 94 }
fazekasgy@37 95
fazekasgy@37 96
fazekasgy@37 97 /* String representation */
fazekasgy@37 98 static PyObject *
fazekasgy@37 99 OutputDescriptor_repr(PyObject *self)
fazekasgy@37 100 {
fazekasgy@37 101 OutputDescriptorObject* v = (OutputDescriptorObject*)self;
fazekasgy@37 102 if (v->dict) return PyDict_Type.tp_repr((PyObject *)v->dict);
fazekasgy@37 103 else return PyString_FromString("OutputDescriptor()");
fazekasgy@37 104 }
fazekasgy@37 105
fazekasgy@37 106 #define OutputDescriptor_alloc PyType_GenericAlloc
fazekasgy@37 107 #define OutputDescriptor_free PyObject_Del
fazekasgy@37 108
fazekasgy@37 109
fazekasgy@37 110 /* REAL-TIME TYPE OBJECT */
fazekasgy@37 111
fazekasgy@37 112 PyTypeObject OutputDescriptor_Type = {
fazekasgy@37 113 PyObject_HEAD_INIT(NULL)
fazekasgy@37 114 0, /*ob_size*/
fazekasgy@37 115 "vampy.OutputDescriptor",/*tp_name*/
fazekasgy@37 116 sizeof(OutputDescriptorObject), /*tp_basicsize*/
fazekasgy@37 117 0, /*tp_itemsize*/
fazekasgy@37 118 (destructor)OutputDescriptorObject_dealloc, /*tp_dealloc*/
fazekasgy@37 119 0, /*tp_print*/
fazekasgy@37 120 (getattrfunc)OutputDescriptor_getattr, /*tp_getattr*/
fazekasgy@37 121 (setattrfunc)OutputDescriptor_setattr, /*tp_setattr*/
fazekasgy@37 122 0, /*tp_compare*/
fazekasgy@37 123 OutputDescriptor_repr, /*tp_repr*/
fazekasgy@37 124 0, /*tp_as_number*/
fazekasgy@37 125 0, /*tp_as_sequence*/
fazekasgy@37 126 0, /*tp_as_mapping*/
fazekasgy@37 127 0, /*tp_hash*/
fazekasgy@37 128 0, /*tp_call*/
fazekasgy@37 129 0, /*tp_str*/
fazekasgy@37 130 0, /*tp_getattro*/
fazekasgy@37 131 0, /*tp_setattro*/
fazekasgy@37 132 0, /*tp_as_buffer*/
fazekasgy@37 133 Py_TPFLAGS_DEFAULT, /*tp_flags*/
fazekasgy@37 134 0, /*tp_doc*/
fazekasgy@37 135 0, /*tp_traverse*/
fazekasgy@37 136 0, /*tp_clear*/
fazekasgy@37 137 0, /*tp_richcompare*/
fazekasgy@37 138 0, /*tp_weaklistoffset*/
fazekasgy@37 139 0, /*tp_iter*/
fazekasgy@37 140 0, /*tp_iternext*/
fazekasgy@37 141 0, /*tp_methods*/ //TypeObject Methods
fazekasgy@37 142 0, /*tp_members*/
fazekasgy@37 143 0, /*tp_getset*/
fazekasgy@37 144 0, /*tp_base*/
fazekasgy@37 145 0, /*tp_dict*/
fazekasgy@37 146 0, /*tp_descr_get*/
fazekasgy@37 147 0, /*tp_descr_set*/
fazekasgy@37 148 0, /*tp_dictoffset*/
fazekasgy@37 149 0, /*tp_init*/
fazekasgy@37 150 OutputDescriptor_alloc, /*tp_alloc*/
fazekasgy@37 151 OutputDescriptor_new, /*tp_new*/
fazekasgy@37 152 OutputDescriptor_free, /*tp_free*/
fazekasgy@37 153 0, /*tp_is_gc*/
fazekasgy@37 154 };
fazekasgy@37 155
fazekasgy@37 156 /* PyOutputDescriptor C++ API */
fazekasgy@37 157