/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtOpenGL module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef QGLPIXELBUFFER_H+
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#define QGLPIXELBUFFER_H+
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+
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#include <QtOpenGL/qgl.h>+
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#include <QtGui/qpaintdevice.h>+
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+
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QT_BEGIN_HEADER+
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+
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QT_BEGIN_NAMESPACE+
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+
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QT_MODULE(OpenGL)+
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+
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class QGLPixelBufferPrivate;+
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+
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class Q_OPENGL_EXPORT QGLPixelBuffer : public QPaintDevice+
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{+
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    Q_DECLARE_PRIVATE(QGLPixelBuffer)+
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public:+
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    QGLPixelBuffer(const QSize &size, const QGLFormat &format = QGLFormat::defaultFormat(),+
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                   QGLWidget *shareWidget = 0);+
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    QGLPixelBuffer(int width, int height, const QGLFormat &format = QGLFormat::defaultFormat(),+
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                   QGLWidget *shareWidget = 0);+
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    virtual ~QGLPixelBuffer();+
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+
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    bool isValid() const;+
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    bool makeCurrent();+
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    bool doneCurrent();+
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+
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    GLuint generateDynamicTexture() const;+
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    bool bindToDynamicTexture(GLuint texture);+
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    void releaseFromDynamicTexture();+
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    void updateDynamicTexture(GLuint texture_id) const;+
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+
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    GLuint bindTexture(const QImage &image, GLenum target = GL_TEXTURE_2D);+
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    GLuint bindTexture(const QPixmap &pixmap, GLenum target = GL_TEXTURE_2D);+
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    GLuint bindTexture(const QString &fileName);+
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    void deleteTexture(GLuint texture_id);+
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+
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    void drawTexture(const QRectF &target, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);+
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    void drawTexture(const QPointF &point, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);+
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+
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#ifdef Q_MAC_COMPAT_GL_FUNCTIONS+
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    bool bindToDynamicTexture(QMacCompatGLuint texture);+
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    void updateDynamicTexture(QMacCompatGLuint texture_id) const;+
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    GLuint bindTexture(const QImage &image, QMacCompatGLenum target = GL_TEXTURE_2D);+
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    GLuint bindTexture(const QPixmap &pixmap, QMacCompatGLenum target = GL_TEXTURE_2D);+
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+
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    void drawTexture(const QRectF &target, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D);+
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    void drawTexture(const QPointF &point, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D);+
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+
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    void deleteTexture(QMacCompatGLuint texture_id);+
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#endif+
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+
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    QSize size() const;+
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    Qt::HANDLE handle() const;+
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    QImage toImage() const;+
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+
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    QPaintEngine *paintEngine() const;+
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    QGLFormat format() const;+
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+
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    static bool hasOpenGLPbuffers();+
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+
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protected:+
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    int metric(PaintDeviceMetric metric) const;+
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    int devType() const { return QInternal::Pbuffer; }+
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+
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private:+
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    Q_DISABLE_COPY(QGLPixelBuffer)+
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    QScopedPointer<QGLPixelBufferPrivate> d_ptr;+
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    friend class QGLDrawable;+
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    friend class QGLWindowSurface;+
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    friend class QGLPaintDevice;+
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    friend class QGLPBufferGLPaintDevice;+
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};+
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+
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QT_END_NAMESPACE+
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+
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QT_END_HEADER+
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+
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#endif // QGLPIXELBUFFER_H+
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