diff options
Diffstat (limited to 'sources/shiboken6/libshiboken/shibokenbuffer.cpp')
-rw-r--r-- | sources/shiboken6/libshiboken/shibokenbuffer.cpp | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/sources/shiboken6/libshiboken/shibokenbuffer.cpp b/sources/shiboken6/libshiboken/shibokenbuffer.cpp new file mode 100644 index 000000000..5bae38aa5 --- /dev/null +++ b/sources/shiboken6/libshiboken/shibokenbuffer.cpp @@ -0,0 +1,83 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of Qt for Python. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "shibokenbuffer.h" +#include <cstdlib> +#include <cstring> + +bool Shiboken::Buffer::checkType(PyObject *pyObj) +{ + return PyObject_CheckBuffer(pyObj) != 0; +} + +void *Shiboken::Buffer::getPointer(PyObject *pyObj, Py_ssize_t *size) +{ + Py_buffer view; + if (PyObject_GetBuffer(pyObj, &view, PyBUF_ND) == 0) { + if (size) + *size = view.len; + PyBuffer_Release(&view); + return view.buf; + } + return nullptr; +} + +PyObject *Shiboken::Buffer::newObject(void *memory, Py_ssize_t size, Type type) +{ + if (size == 0) + Py_RETURN_NONE; + 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; + // Pep384: This is way too complicated and impossible with the limited api: + //return PyMemoryView_FromBuffer(&view); + return PyMemoryView_FromMemory(reinterpret_cast<char *>(view.buf), + size, type == ReadOnly ? PyBUF_READ : PyBUF_WRITE); +} + +PyObject *Shiboken::Buffer::newObject(const void *memory, Py_ssize_t size) +{ + return newObject(const_cast<void *>(memory), size, ReadOnly); +} |