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/****************************************************************************
**
** Copyright (C) 2015 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "movingaverage_p.h"
QT_BEGIN_NAMESPACE
namespace Qt3DInput {
namespace Input {
MovingAverage::MovingAverage(unsigned int samples)
: m_maxSampleCount(samples)
, m_sampleCount(0)
, m_currentSample(0)
, m_total(0.0f)
, m_samples(samples)
{
}
void MovingAverage::addSample(float sample)
{
if (m_sampleCount == m_maxSampleCount)
m_total -= m_samples.at(m_currentSample);
else
++m_sampleCount;
m_samples[m_currentSample] = sample;
m_total += sample;
++m_currentSample;
if (m_currentSample >= m_maxSampleCount)
m_currentSample = 0;
}
float MovingAverage::average() const
{
return m_sampleCount ? m_total / static_cast<float>(m_sampleCount) : 0.0f;
}
} // Input
} // Qt3DInput
QT_END_NAMESPACE
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