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/*
* This file is part of the Shiboken Python Bindings Generator project.
*
* Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
*
* Contact: PySide team <contact@pyside.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "shibokenbuffer.h"
#include <cstdlib>
#include <cstring>
bool Shiboken::Buffer::checkType(PyObject* pyObj)
{
return PyObject_CheckReadBuffer(pyObj);
}
void* Shiboken::Buffer::getPointer(PyObject* pyObj, Py_ssize_t* size)
{
#ifdef IS_PY3K
Py_buffer view;
if (PyObject_GetBuffer(pyObj, &view, PyBUF_ND) == 0) {
if (size)
*size = view.len;
return view.buf;
} else {
return 0;
}
#else
const void* buffer = 0;
Py_ssize_t bufferSize = 0;
PyObject_AsReadBuffer(pyObj, &buffer, &bufferSize);
if (size)
*size = bufferSize;
return const_cast<void*>(buffer);
#endif
}
PyObject* Shiboken::Buffer::newObject(void* memory, Py_ssize_t size, Type type)
{
if (size == 0)
Py_RETURN_NONE;
#ifdef IS_PY3K
Py_buffer view;
memset(&view, 0, sizeof(Py_buffer));
view.buf = memory;
view.len = size;
view.readonly = type == Shiboken::Buffer::ReadOnly;
view.ndim = 1;
view.itemsize = sizeof(char);
Py_ssize_t shape[] = { size };
view.shape = shape;
return PyMemoryView_FromBuffer(&view);
#else
return type == ReadOnly ? PyBuffer_FromMemory(memory, size) : PyBuffer_FromReadWriteMemory(memory, size);
#endif
}
PyObject* Shiboken::Buffer::newObject(const void* memory, Py_ssize_t size)
{
return newObject(const_cast<void*>(memory), size, ReadOnly);
}
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