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
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17 ** In addition, as a special exception, Nokia gives you certain additional
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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/qrawfont_p.h>
53 #include <QtQuick/qsgnode.h>
54 #include <QtQuick/private/qsgdepthstencilbuffer_p.h>
61 class QSGContextPrivate;
62 class QSGRectangleNode;
66 class QSGDistanceFieldGlyphCache;
70 class QSGMaterialShader;
72 class QQuickWindowManager;
75 class QOpenGLFramebufferObject;
77 class QQuickTextureFactory;
79 class Q_QUICK_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 QSGRenderer *createRenderer();
106 virtual QSGTexture *createTexture(const QImage &image = QImage()) const;
107 virtual QSize minimumFBOSize() const;
108 virtual QSharedPointer<QSGDepthStencilBuffer> depthStencilBufferForFbo(QOpenGLFramebufferObject *fbo);
109 QSGDepthStencilBufferManager *depthStencilBufferManager();
111 virtual QSurfaceFormat defaultSurfaceFormat() const;
113 QSGTexture *textureForFactory(QQuickTextureFactory *factory, QQuickCanvas *canvas);
115 static QSGContext *createDefaultContext();
117 void setFlashModeEnabled(bool enabled);
118 bool isFlashModeEnabled() const;
120 void setRenderAlpha(qreal renderAlpha);
121 qreal renderAlpha() const;
123 void setDistanceFieldEnabled(bool enabled);
124 bool isDistanceFieldEnabled() const;
126 virtual QAnimationDriver *createAnimationDriver(QObject *parent);
128 static QQuickTextureFactory *createTextureFactoryFromImage(const QImage &image);
129 static QQuickWindowManager *createWindowManager();
133 void textureFactoryDestroyed(QObject *o);
144 #endif // QSGCONTEXT_H