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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 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 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGLATTRIBUTEVALUE_H
#define QGLATTRIBUTEVALUE_H
#include "qglattributedescription.h"
#include "qcustomdataarray.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Qt3D)
class QGLVertexBundle;
class Q_QT3D_EXPORT QGLAttributeValue
{
public:
QGLAttributeValue();
QGLAttributeValue(const QArray<float>& array);
QGLAttributeValue(const QArray<QVector2D>& array);
QGLAttributeValue(const QArray<QVector3D>& array);
QGLAttributeValue(const QArray<QVector4D>& array);
QGLAttributeValue(const QArray<QColor4ub>& array);
QGLAttributeValue(const QCustomDataArray& array);
QGLAttributeValue(int tupleSize, GLenum type, int stride, const void *data, int count = 0);
QGLAttributeValue(int tupleSize, GLenum type, int stride, int offset, int count = 0);
QGLAttributeValue(const QGLAttributeDescription& description, const void *data, int count = 0);
QGLAttributeValue(const QGLAttributeDescription& description, int offset, int count = 0);
bool isNull() const;
QGLAttributeDescription description(QGL::VertexAttribute attribute) const;
GLenum type() const;
int sizeOfType() const;
int tupleSize() const;
int stride() const;
const void *data() const;
int count() const;
private:
int m_tupleSize;
GLenum m_type;
int m_stride;
const void *m_data;
int m_count;
void setStride(int stride) { m_stride = stride; }
void setOffset(int offset)
{ m_data = reinterpret_cast<const void *>(offset); }
friend class QGLVertexBundle;
};
inline QGLAttributeValue::QGLAttributeValue()
: m_tupleSize(0), m_type(GL_FLOAT), m_stride(0), m_data(0), m_count(0)
{
}
inline QGLAttributeValue::QGLAttributeValue(const QArray<float>& array)
: m_tupleSize(1), m_type(GL_FLOAT), m_stride(0)
, m_data(array.constData()), m_count(array.count())
{
}
inline QGLAttributeValue::QGLAttributeValue(const QArray<QVector2D>& array)
: m_tupleSize(2), m_type(GL_FLOAT), m_stride(0)
, m_data(array.constData()), m_count(array.count())
{
}
inline QGLAttributeValue::QGLAttributeValue(const QArray<QVector3D>& array)
: m_tupleSize(3), m_type(GL_FLOAT), m_stride(0)
, m_data(array.constData()), m_count(array.count())
{
}
inline QGLAttributeValue::QGLAttributeValue(const QArray<QVector4D>& array)
: m_tupleSize(4), m_type(GL_FLOAT), m_stride(0)
, m_data(array.constData()), m_count(array.count())
{
}
inline QGLAttributeValue::QGLAttributeValue(const QArray<QColor4ub>& array)
: m_tupleSize(4), m_type(GL_UNSIGNED_BYTE), m_stride(0)
, m_data(array.constData()), m_count(array.count())
{
}
inline QGLAttributeValue::QGLAttributeValue
(int tupleSize, GLenum type, int stride, const void *data, int count)
: m_tupleSize(tupleSize), m_type(type), m_stride(stride)
, m_data(data), m_count(count)
{
Q_ASSERT(tupleSize >= 1 && tupleSize <= 4);
}
inline QGLAttributeValue::QGLAttributeValue
(int tupleSize, GLenum type, int stride, int offset, int count)
: m_tupleSize(tupleSize), m_type(type), m_stride(stride)
, m_data(reinterpret_cast<const void *>(offset)), m_count(count)
{
Q_ASSERT(tupleSize >= 1 && tupleSize <= 4);
}
inline QGLAttributeValue::QGLAttributeValue
(const QGLAttributeDescription& description, const void *data, int count)
: m_tupleSize(description.tupleSize()), m_type(description.type())
, m_stride(description.stride()), m_data(data), m_count(count)
{
}
inline QGLAttributeValue::QGLAttributeValue
(const QGLAttributeDescription& description, int offset, int count)
: m_tupleSize(description.tupleSize()), m_type(description.type())
, m_stride(description.stride())
, m_data(reinterpret_cast<const void *>(offset))
, m_count(count)
{
}
inline bool QGLAttributeValue::isNull() const
{
return m_tupleSize == 0;
}
inline QGLAttributeDescription QGLAttributeValue::description(QGL::VertexAttribute attribute) const
{
if (!isNull()) {
return QGLAttributeDescription(attribute, m_tupleSize, m_type, m_stride);
} else {
QGLAttributeDescription desc;
desc.setAttribute(attribute);
return desc;
}
}
inline GLenum QGLAttributeValue::type() const
{
return m_type;
}
inline int QGLAttributeValue::tupleSize() const
{
return m_tupleSize;
}
inline int QGLAttributeValue::stride() const
{
return m_stride;
}
inline const void *QGLAttributeValue::data() const
{
return m_data;
}
inline int QGLAttributeValue::count() const
{
return m_count;
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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