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/****************************************************************************
**
** Copyright (C) 2015 Paul Lemire paul.lemire350@gmail.com
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://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.LGPL3 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-3.0.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 (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QT3DRENDER_RENDER_BUFFERUTILS_P_H
#define QT3DRENDER_RENDER_BUFFERUTILS_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <Qt3DRender/QAttribute>
#include <QByteArray>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
namespace Render {
class GeometryRenderer;
class NodeManagers;
class Attribute;
class Buffer;
struct BufferInfo
{
BufferInfo()
: type(QAttribute::VertexBaseType::Float)
, dataSize(0)
, count(0)
, byteStride(0)
, byteOffset(0)
, restartEnabled(false)
, restartIndexValue(-1)
{}
QByteArray data;
QAttribute::VertexBaseType type;
uint dataSize;
uint count;
uint byteStride;
uint byteOffset;
bool restartEnabled;
int restartIndexValue;
};
namespace BufferTypeInfo {
template <QAttribute::VertexBaseType> struct EnumToType;
template <> struct EnumToType<QAttribute::Byte> { typedef const char type; };
template <> struct EnumToType<QAttribute::UnsignedByte> { typedef const uchar type; };
template <> struct EnumToType<QAttribute::Short> { typedef const short type; };
template <> struct EnumToType<QAttribute::UnsignedShort> { typedef const ushort type; };
template <> struct EnumToType<QAttribute::Int> { typedef const int type; };
template <> struct EnumToType<QAttribute::UnsignedInt> { typedef const uint type; };
template <> struct EnumToType<QAttribute::Float> { typedef const float type; };
template <> struct EnumToType<QAttribute::Double> { typedef const double type; };
template<QAttribute::VertexBaseType v>
typename EnumToType<v>::type *castToType(const QByteArray &u, uint byteOffset)
{
return reinterpret_cast< typename EnumToType<v>::type *>(u.constData() + byteOffset);
}
} // namespace BufferTypeInfo
} // namespace Render
} // namespace Qt3DRender
QT_END_NAMESPACE
#endif // QT3DRENDER_RENDER_BUFFERUTILS_P_H
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