rangecoder/python/src/module.cpp at deccf77fca40417a3bfd4e7dc0d73f60c99c140b · kazuho/rangecoder · GitHub

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#include <Python.h>
#include "range_coder_interface.h"

static PyMethodDef RangeEncoder_methods[] = {
	{"encode",
		(PyCFunction)RangeEncoder_encode,
		METH_VARARGS | METH_KEYWORDS,
		RangeEncoder_encode_doc},
	{"close",
		(PyCFunction)RangeEncoder_close,
		METH_VARARGS | METH_KEYWORDS,
		RangeEncoder_close_doc},
	{0}
};


static PyGetSetDef RangeEncoder_getset[] = {
	{0}
};


PyTypeObject RangeEncoder_type = {
	PyVarObject_HEAD_INIT(0, 0)
	"range_coder.RangeEncoder",       /*tp_name*/
	sizeof(RangeEncoderObject),       /*tp_basicsize*/
	0,                                /*tp_itemsize*/
	(destructor)RangeEncoder_dealloc, /*tp_dealloc*/
	0,                                /*tp_print*/
	0,                                /*tp_getattr*/
	0,                                /*tp_setattr*/
	0,                                /*tp_compare*/
	0,                                /*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*/
	RangeEncoder_doc,                 /*tp_doc*/
	0,                                /*tp_traverse*/
	0,                                /*tp_clear*/
	0,                                /*tp_richcompare*/
	0,                                /*tp_weaklistoffset*/
	0,                                /*tp_iter*/
	0,                                /*tp_iternext*/
	RangeEncoder_methods,             /*tp_methods*/
	0,                                /*tp_members*/
	RangeEncoder_getset,              /*tp_getset*/
	0,                                /*tp_base*/
	0,                                /*tp_dict*/
	0,                                /*tp_descr_get*/
	0,                                /*tp_descr_set*/
	0,                                /*tp_dictoffset*/
	(initproc)RangeEncoder_init,      /*tp_init*/
	0,                                /*tp_alloc*/
	RangeEncoder_new,                 /*tp_new*/
};

static PyMethodDef RangeDecoder_methods[] = {
	{"decode",
		(PyCFunction)RangeDecoder_decode,
		METH_VARARGS | METH_KEYWORDS,
		RangeDecoder_decode_doc},
	{"close",
		(PyCFunction)RangeDecoder_close,
		METH_VARARGS | METH_KEYWORDS,
		RangeDecoder_close_doc},
	{0}
};


static PyGetSetDef RangeDecoder_getset[] = {
	{0}
};


PyTypeObject RangeDecoder_type = {
	PyVarObject_HEAD_INIT(0, 0)
	"range_coder.RangeDecoder",       /*tp_name*/
	sizeof(RangeDecoderObject),       /*tp_basicsize*/
	0,                                /*tp_itemsize*/
	(destructor)RangeDecoder_dealloc, /*tp_dealloc*/
	0,                                /*tp_print*/
	0,                                /*tp_getattr*/
	0,                                /*tp_setattr*/
	0,                                /*tp_compare*/
	0,                                /*tp_repr*/
	0,                                /*tp_as_number*/
	0,                                /*tp_as_sequdece*/
	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*/
	RangeDecoder_doc,                 /*tp_doc*/
	0,                                /*tp_traverse*/
	0,                                /*tp_clear*/
	0,                                /*tp_richcompare*/
	0,                                /*tp_weaklistoffset*/
	0,                                /*tp_iter*/
	0,                                /*tp_iternext*/
	RangeDecoder_methods,             /*tp_methods*/
	0,                                /*tp_members*/
	RangeDecoder_getset,              /*tp_getset*/
	0,                                /*tp_base*/
	0,                                /*tp_dict*/
	0,                                /*tp_descr_get*/
	0,                                /*tp_descr_set*/
	0,                                /*tp_dictoffset*/
	(initproc)RangeDecoder_init,      /*tp_init*/
	0,                                /*tp_alloc*/
	RangeDecoder_new,                 /*tp_new*/
};

#if PY_MAJOR_VERSION >= 3
static PyModuleDef range_coder_module = {
	PyModuleDef_HEAD_INIT,
	"_range_coder",
	"A fast implementation of a range encoder and decoder.",
	-1, 0, 0, 0, 0, 0
};
#endif


#if PY_MAJOR_VERSION >= 3
PyMODINIT_FUNC PyInit__range_coder() {
	// create module object
	PyObject* module = PyModule_Create(&range_coder_module);
#define RETVAL 0;
#else
PyMODINIT_FUNC init_range_coder() {
	PyObject* module = Py_InitModule3(
		"_range_coder", 0, "A fast implementation of a range encoder and decoder.");
#define RETVAL void();
#endif

	if(!module)
		return RETVAL;

	// initialize types
	if(PyType_Ready(&RangeEncoder_type) < 0)
		return RETVAL;
	if(PyType_Ready(&RangeDecoder_type) < 0)
		return RETVAL;

	// add types to module
	Py_INCREF(&RangeEncoder_type);
	PyModule_AddObject(module, "RangeEncoder", reinterpret_cast<PyObject*>(&RangeEncoder_type));
	Py_INCREF(&RangeDecoder_type);
	PyModule_AddObject(module, "RangeDecoder", reinterpret_cast<PyObject*>(&RangeDecoder_type));

#if PY_MAJOR_VERSION >= 3
	return module;
#endif
}