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/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QT3D_QBUFFER_H
#define QT3D_QBUFFER_H
#include <Qt3DCore/qabstractbuffer.h>
#include <Qt3DRenderer/qt3drenderer_global.h>
#include <QSharedPointer>
#include <QOpenGLBuffer>
QT_BEGIN_NAMESPACE
namespace Qt3D {
GLint elementType(GLint type);
GLint tupleSizeFromType(GLint type);
GLuint byteSizeFromType(GLint type);
class BufferPrivate;
class QT3DRENDERERSHARED_EXPORT Buffer : public QAbstractBuffer
{
public:
explicit Buffer(QOpenGLBuffer::Type ty);
void setUsage(QOpenGLBuffer::UsagePattern usage);
QOpenGLBuffer::Type type() const;
void bind() Q_DECL_OVERRIDE;
void create() Q_DECL_OVERRIDE;
QOpenGLBuffer createGL() const;
void upload(QOpenGLBuffer b);
// make a QObject and signal when contents change?
// GraphicsContext could listen, orphan the QOpenGLBuffer and hence
// reupload next time it's need
protected:
Q_DECLARE_PRIVATE(Buffer)
Buffer(BufferPrivate &dd, QOpenGLBuffer::Type ty);
};
typedef QSharedPointer<Buffer> BufferPtr;
} // Qt3D
QT_END_NAMESPACE
#endif // QT3D_QBUFFER_H
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