diff options
Diffstat (limited to 'sources/shiboken2/tests/libsample/transform.cpp')
-rw-r--r-- | sources/shiboken2/tests/libsample/transform.cpp | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/sources/shiboken2/tests/libsample/transform.cpp b/sources/shiboken2/tests/libsample/transform.cpp new file mode 100644 index 000000000..951e2ca5b --- /dev/null +++ b/sources/shiboken2/tests/libsample/transform.cpp @@ -0,0 +1,65 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Copyright (C) 2013 Kitware, Inc. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the test suite of PySide2. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** 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 General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** 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-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "transform.h" + +#ifdef _WIN32 +#include <math.h> +#include <float.h> +static inline bool isfinite(double a) { return _finite(a); } +#else +#include <cmath> +#endif + +using namespace std; + +Point applyHomogeneousTransform( + const Point& in, + double m11, double m12, double m13, + double m21, double m22, double m23, + double m31, double m32, double m33, + bool* okay) +{ + double x = m11 * in.x() + m12 * in.y() + m13; + double y = m21 * in.x() + m22 * in.y() + m23; + double w = m31 * in.x() + m32 * in.y() + m33; + + if (isfinite(w) && fabs(w) > 1e-10) + { + if (okay) + *okay = true; + return Point(x / w, y / w); + } + else + { + if (okay) + *okay = false; + return Point(); + } +} |