source: trunk/src/opengl/qgraphicssystem_gl.cpp@ 1023

Last change on this file since 1023 was 846, checked in by Dmitry A. Kuminov, 14 years ago

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.

File size: 3.5 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the QtOpenGL module of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you have questions regarding the use of this file, please contact
37** Nokia at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include "qgraphicssystem_gl_p.h"
43#include <QGraphicsView>
44
45#include "private/qpixmap_raster_p.h"
46#include "private/qpixmapdata_gl_p.h"
47#include "private/qwindowsurface_gl_p.h"
48#include "private/qgl_p.h"
49#include <private/qwindowsurface_raster_p.h>
50
51#if defined(Q_WS_X11) && !defined(QT_NO_EGL)
52#include "private/qpixmapdata_x11gl_p.h"
53#include "private/qwindowsurface_x11gl_p.h"
54#endif
55
56QT_BEGIN_NAMESPACE
57
58extern QGLWidget *qt_gl_getShareWidget();
59
60QPixmapData *QGLGraphicsSystem::createPixmapData(QPixmapData::PixelType type) const
61{
62 return new QGLPixmapData(type);
63}
64
65QWindowSurface *QGLGraphicsSystem::createWindowSurface(QWidget *widget) const
66{
67#ifdef Q_WS_WIN
68 // On Windows the QGLWindowSurface class can't handle
69 // drop shadows and native effects, e.g. fading a menu in/out using
70 // top level window opacity.
71 if (widget->windowType() == Qt::Popup)
72 return new QRasterWindowSurface(widget);
73#endif
74
75#if defined(Q_WS_X11) && !defined(QT_NO_EGL)
76 if (m_useX11GL && QX11GLPixmapData::hasX11GLPixmaps()) {
77 // If the widget is a QGraphicsView which will be re-drawing the entire
78 // scene each frame anyway, we should use QGLWindowSurface as this may
79 // provide proper buffer flipping, which should be faster than QX11GL's
80 // blitting approach:
81 QGraphicsView* qgv = qobject_cast<QGraphicsView*>(widget);
82 if (qgv && qgv->viewportUpdateMode() == QGraphicsView::FullViewportUpdate)
83 return new QGLWindowSurface(widget);
84 else
85 return new QX11GLWindowSurface(widget);
86 }
87#endif
88
89 return new QGLWindowSurface(widget);
90}
91
92QT_END_NAMESPACE
93
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