diff options
author | Alexandru Croitor <alexandru.croitor@qt.io> | 2017-09-11 13:36:35 +0200 |
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committer | Alexandru Croitor <alexandru.croitor@qt.io> | 2017-11-06 08:30:27 +0000 |
commit | 764498b3d033a1c947a40dc1b2237e81b674992b (patch) | |
tree | 9245056c6f5cbc9b85bf942d2b74dc9ca740627f /sources/shiboken2/libshiboken/voidptr.h | |
parent | 8c9037dc83fbdbb0b9913961fbe7f84066630e18 (diff) |
Implement proper void pointer (void*) support
This change introduces a new type into the shiboken2 module which is
imported by calling "import PySide2.support.VoidPtr".
The type takes care of conversions from / to void* values in function
signatures.
Creating an instance can be done by passing either a shiboken wrapped
object, or an integer representing an address, or a python object that
implements the buffer interface.
For example, this is useful for passing numpy arrays to C OpenGL
functions that take void* parameters. First you convert the array into
a bytestring (using numpy.array.tobytes(), then you instantiate a
VoidPtr from that bytestring, and finally you pass it along to a GL
function.
One corner case that is currently not supported is void** parameters.
Change-Id: I01e291d6856cb6bd8b5175adc3ead6b728036535
Reviewed-by: Christian Tismer <tismer@stackless.com>
Diffstat (limited to 'sources/shiboken2/libshiboken/voidptr.h')
-rw-r--r-- | sources/shiboken2/libshiboken/voidptr.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/sources/shiboken2/libshiboken/voidptr.h b/sources/shiboken2/libshiboken/voidptr.h new file mode 100644 index 000000000..17dd3a008 --- /dev/null +++ b/sources/shiboken2/libshiboken/voidptr.h @@ -0,0 +1,65 @@ +/**************************************************************************** +** +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of PySide2. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef VOIDPTR_H +#define VOIDPTR_H + +#include <Python.h> +#include "shibokenmacros.h" +#include "sbkconverter.h" + +extern "C" +{ + +// Void pointer type declaration. +extern LIBSHIBOKEN_API PyTypeObject SbkVoidPtrType; + +} // extern "C" + +namespace VoidPtr +{ + +void init(); +SbkConverter *createConverter(); +LIBSHIBOKEN_API void addVoidPtrToModule(PyObject *module); + +} + + +#endif // VOIDPTR_H |