/****************************************************************************+
−
**+
−
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
−
** All rights reserved.+
−
** Contact: Nokia Corporation (qt-info@nokia.com)+
−
**+
−
** This file is part of the QtOpenGL module of the Qt Toolkit.+
−
**+
−
** $QT_BEGIN_LICENSE:LGPL$+
−
** No Commercial Usage+
−
** This file contains pre-release code and may not be distributed.+
−
** You may use this file in accordance with the terms and conditions+
−
** contained in the Technology Preview License Agreement accompanying+
−
** this package.+
−
**+
−
** GNU Lesser General Public License Usage+
−
** Alternatively, this file may be used under the terms of the GNU Lesser+
−
** General Public License version 2.1 as published by the Free Software+
−
** Foundation and appearing in the file LICENSE.LGPL included in the+
−
** packaging of this file.  Please review the following information to+
−
** ensure the GNU Lesser General Public License version 2.1 requirements+
−
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
−
**+
−
** In addition, as a special exception, Nokia gives you certain additional+
−
** rights.  These rights are described in the Nokia Qt LGPL Exception+
−
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
−
**+
−
** If you have questions regarding the use of this file, please contact+
−
** Nokia at qt-info@nokia.com.+
−
**+
−
**+
−
**+
−
**+
−
**+
−
**+
−
**+
−
**+
−
** $QT_END_LICENSE$+
−
**+
−
****************************************************************************/+
−
+
−
#ifndef QGLFRAMEBUFFEROBJECT_P_H+
−
#define QGLFRAMEBUFFEROBJECT_P_H+
−
+
−
//+
−
//  W A R N I N G+
−
//  -------------+
−
//+
−
// This file is not part of the Qt API.  It exists for the convenience+
−
// of the QLibrary class.  This header file may change from+
−
// version to version without notice, or even be removed.+
−
//+
−
// We mean it.+
−
//+
−
+
−
QT_BEGIN_NAMESPACE+
−
+
−
QT_BEGIN_INCLUDE_NAMESPACE+
−
+
−
#include <qglframebufferobject.h>+
−
#include <private/qglpaintdevice_p.h>+
−
#include <private/qgl_p.h>+
−
+
−
QT_END_INCLUDE_NAMESPACE+
−
+
−
#ifndef QT_OPENGL_ES+
−
#define DEFAULT_FORMAT GL_RGBA8+
−
#else+
−
#define DEFAULT_FORMAT GL_RGBA+
−
#endif+
−
+
−
class QGLFramebufferObjectFormatPrivate+
−
{+
−
public:+
−
    QGLFramebufferObjectFormatPrivate()+
−
        : ref(1),+
−
          samples(0),+
−
          attachment(QGLFramebufferObject::NoAttachment),+
−
          target(GL_TEXTURE_2D),+
−
          internal_format(DEFAULT_FORMAT)+
−
    {+
−
    }+
−
    QGLFramebufferObjectFormatPrivate+
−
            (const QGLFramebufferObjectFormatPrivate *other)+
−
        : ref(1),+
−
          samples(other->samples),+
−
          attachment(other->attachment),+
−
          target(other->target),+
−
          internal_format(other->internal_format)+
−
    {+
−
    }+
−
    bool equals(const QGLFramebufferObjectFormatPrivate *other)+
−
    {+
−
        return samples == other->samples &&+
−
               attachment == other->attachment &&+
−
               target == other->target &&+
−
               internal_format == other->internal_format;+
−
    }+
−
+
−
    QAtomicInt ref;+
−
    int samples;+
−
    QGLFramebufferObject::Attachment attachment;+
−
    GLenum target;+
−
    GLenum internal_format;+
−
};+
−
+
−
class QGLFBOGLPaintDevice : public QGLPaintDevice+
−
{+
−
public:+
−
    virtual QPaintEngine* paintEngine() const {return fbo->paintEngine();}+
−
    virtual QSize size() const {return fbo->size();}+
−
    virtual QGLContext* context() const;+
−
    virtual QGLFormat format() const {return fboFormat;}+
−
    virtual bool alphaRequested() const { return reqAlpha; }+
−
+
−
    void setFBO(QGLFramebufferObject* f,+
−
                QGLFramebufferObject::Attachment attachment);+
−
+
−
private:+
−
    QGLFramebufferObject* fbo;+
−
    QGLFormat fboFormat;+
−
    bool wasBound;+
−
    bool reqAlpha;+
−
};+
−
+
−
class QGLFramebufferObjectPrivate+
−
{+
−
public:+
−
    QGLFramebufferObjectPrivate() : fbo_guard(0), texture(0), depth_stencil_buffer(0)+
−
                                  , color_buffer(0), valid(false), engine(0) {}+
−
    ~QGLFramebufferObjectPrivate() {}+
−
+
−
    void init(QGLFramebufferObject *q, const QSize& sz,+
−
              QGLFramebufferObject::Attachment attachment,+
−
              GLenum internal_format, GLenum texture_target, GLint samples = 0);+
−
    bool checkFramebufferStatus() const;+
−
    QGLSharedResourceGuard fbo_guard;+
−
    GLuint texture;+
−
    GLuint depth_stencil_buffer;+
−
    GLuint color_buffer;+
−
    GLenum target;+
−
    QSize size;+
−
    QGLFramebufferObjectFormat format;+
−
    uint valid : 1;+
−
    QGLFramebufferObject::Attachment fbo_attachment;+
−
    mutable QPaintEngine *engine;+
−
    QGLFBOGLPaintDevice glDevice;+
−
+
−
    inline GLuint fbo() const { return fbo_guard.id(); }+
−
};+
−
+
−
+
−
QT_END_NAMESPACE+
−
+
−
#endif // QGLFRAMEBUFFEROBJECT_P_H+
−