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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** 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 {return const_cast<QGLContext *>(QGLContext::currentContext());}
+ virtual void ensureActiveTarget();
+ virtual void beginPaint();
+ virtual void endPaint();
+
+ void setFBO(QGLFramebufferObject* f);
+
+private:
+ bool wasBound;
+ QGLFramebufferObject* fbo;
+};
+
+class QGLFramebufferObjectPrivate
+{
+public:
+ QGLFramebufferObjectPrivate() : depth_stencil_buffer(0), valid(false), ctx(0), previous_fbo(0), 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;
+ GLuint texture;
+ GLuint fbo;
+ GLuint depth_stencil_buffer;
+ GLuint color_buffer;
+ GLenum target;
+ QSize size;
+ QGLFramebufferObjectFormat format;
+ uint valid : 1;
+ QGLFramebufferObject::Attachment fbo_attachment;
+ QGLContextGroup *ctx; // for Windows extension ptrs
+ GLuint previous_fbo;
+ mutable QPaintEngine *engine;
+ QGLFBOGLPaintDevice glDevice;
+};
+
+
+QT_END_NAMESPACE
+
+#endif // QGLFRAMEBUFFEROBJECT_P_H