1 /****************************************************************************
3 ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/
6 ** This file is part of the QtQml module of the Qt Toolkit.
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** GNU Lesser General Public License Usage
10 ** This file may be used under the terms of the GNU Lesser General Public
11 ** License version 2.1 as published by the Free Software Foundation and
12 ** appearing in the file LICENSE.LGPL included in the packaging of this
13 ** file. Please review the following information to ensure the GNU Lesser
14 ** General Public License version 2.1 requirements will be met:
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17 ** In addition, as a special exception, Nokia gives you certain additional
18 ** rights. These rights are described in the Nokia Qt LGPL Exception
19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
21 ** GNU General Public License Usage
22 ** Alternatively, this file may be used under the terms of the GNU General
23 ** Public License version 3.0 as published by the Free Software Foundation
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25 ** file. Please review the following information to ensure the GNU General
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40 ****************************************************************************/
45 #include <QtCore/QObject>
46 #include <QtCore/qabstractanimation.h>
48 #include <QtGui/QImage>
49 #include <QtGui/QSurfaceFormat>
51 #include <private/qtquickglobal_p.h>
52 #include <private/qrawfont_p.h>
54 #include <QtQuick/qsgnode.h>
55 #include <QtQuick/private/qsgdepthstencilbuffer_p.h>
62 class QSGContextPrivate;
63 class QSGRectangleNode;
67 class QSGDistanceFieldGlyphCache;
71 class QSGMaterialShader;
72 class QQuickWindowManager;
75 class QOpenGLFramebufferObject;
77 class QQuickTextureFactory;
79 class Q_QUICK_PRIVATE_EXPORT QSGContext : public QObject
82 Q_DECLARE_PRIVATE(QSGContext)
85 explicit QSGContext(QObject *parent = 0);
88 virtual void initialize(QOpenGLContext *context);
89 virtual void invalidate();
91 QOpenGLContext *glContext() const;
95 QSGMaterialShader *prepareMaterial(QSGMaterial *material);
97 virtual void renderNextFrame(QSGRenderer *renderer, GLuint fboId);
99 virtual QSGDistanceFieldGlyphCache *distanceFieldGlyphCache(const QRawFont &font);
101 virtual QSGRectangleNode *createRectangleNode();
102 virtual QSGImageNode *createImageNode();
103 virtual QSGGlyphNode *createGlyphNode();
104 virtual QSGGlyphNode *createNativeGlyphNode();
105 virtual QSGRenderer *createRenderer();
107 virtual QSGTexture *createTexture(const QImage &image = QImage()) const;
108 virtual QSize minimumFBOSize() const;
109 virtual QSharedPointer<QSGDepthStencilBuffer> depthStencilBufferForFbo(QOpenGLFramebufferObject *fbo);
110 QSGDepthStencilBufferManager *depthStencilBufferManager();
112 virtual QSurfaceFormat defaultSurfaceFormat() const;
114 QSGTexture *textureForFactory(QQuickTextureFactory *factory, QQuickWindow *window);
116 static QSGContext *createDefaultContext();
118 void setFlashModeEnabled(bool enabled);
119 bool isFlashModeEnabled() const;
121 void setRenderAlpha(qreal renderAlpha);
122 qreal renderAlpha() const;
124 void setDistanceFieldEnabled(bool enabled);
125 bool isDistanceFieldEnabled() const;
127 virtual QAnimationDriver *createAnimationDriver(QObject *parent);
129 static QQuickTextureFactory *createTextureFactoryFromImage(const QImage &image);
130 static QQuickWindowManager *createWindowManager();
134 void textureFactoryDestroyed(QObject *o);
145 #endif // QSGCONTEXT_H