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3** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
4** Contact: http://www.qt-project.org/legal
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22** ensure the GNU Lesser General Public License version 2.1 requirements
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29** GNU General Public License Usage
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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
56#if defined(Q_OS_SYMBIAN)
57#include <QtGui/private/qapplication_p.h>
58#include "private/qgltexturepool_p.h"
59#endif
60
61QT_BEGIN_NAMESPACE
62
63extern QGLWidget *qt_gl_getShareWidget();
64
65QPixmapData *QGLGraphicsSystem::createPixmapData(QPixmapData::PixelType type) const
66{
67 return new QGLPixmapData(type);
68}
69
70QWindowSurface *QGLGraphicsSystem::createWindowSurface(QWidget *widget) const
71{
72#ifdef Q_WS_WIN
73 // On Windows the QGLWindowSurface class can't handle
74 // drop shadows and native effects, e.g. fading a menu in/out using
75 // top level window opacity.
76 if (widget->windowType() == Qt::Popup)
77 return new QRasterWindowSurface(widget);
78#endif
79
80#if defined(Q_WS_X11) && !defined(QT_NO_EGL)
81 if (m_useX11GL && QX11GLPixmapData::hasX11GLPixmaps()) {
82 // If the widget is a QGraphicsView which will be re-drawing the entire
83 // scene each frame anyway, we should use QGLWindowSurface as this may
84 // provide proper buffer flipping, which should be faster than QX11GL's
85 // blitting approach:
86 QGraphicsView* qgv = qobject_cast<QGraphicsView*>(widget);
87 if (qgv && qgv->viewportUpdateMode() == QGraphicsView::FullViewportUpdate)
88 return new QGLWindowSurface(widget);
89 else
90 return new QX11GLWindowSurface(widget);
91 }
92#endif
93
94#if defined(Q_OS_SYMBIAN)
95 if (!QApplicationPrivate::instance()->useTranslucentEGLSurfaces) {
96 QWidgetPrivate *d = qt_widget_private(widget);
97 if (!d->isOpaque && widget->testAttribute(Qt::WA_TranslucentBackground))
98 return d->createDefaultWindowSurface_sys();
99 }
100#endif
101
102 return new QGLWindowSurface(widget);
103}
104#ifdef Q_OS_SYMBIAN
105void QGLGraphicsSystem::releaseCachedGpuResources()
106{
107 QGLTexturePool::instance()->hibernate();
108}
109
110QGraphicsSystemEx* QGLGraphicsSystem::platformExtension()
111{
112 return this;
113}
114#endif
115
116QT_END_NAMESPACE
117
118