| 1 | // Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB). |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | |
| 4 | #include "movingaverage_p.h" |
| 5 | |
| 6 | QT_BEGIN_NAMESPACE |
| 7 | |
| 8 | namespace Qt3DInput { |
| 9 | namespace Input { |
| 10 | |
| 11 | MovingAverage::MovingAverage(unsigned int samples) |
| 12 | : m_maxSampleCount(samples) |
| 13 | , m_sampleCount(0) |
| 14 | , m_currentSample(0) |
| 15 | , m_total(0.0f) |
| 16 | , m_samples(samples) |
| 17 | { |
| 18 | } |
| 19 | |
| 20 | void MovingAverage::addSample(float sample) |
| 21 | { |
| 22 | if (m_sampleCount == m_maxSampleCount) |
| 23 | m_total -= m_samples[m_currentSample]; |
| 24 | else |
| 25 | ++m_sampleCount; |
| 26 | |
| 27 | m_samples[m_currentSample] = sample; |
| 28 | m_total += sample; |
| 29 | ++m_currentSample; |
| 30 | if (m_currentSample >= m_maxSampleCount) |
| 31 | m_currentSample = 0; |
| 32 | } |
| 33 | |
| 34 | float MovingAverage::average() const |
| 35 | { |
| 36 | return m_sampleCount ? m_total / static_cast<float>(m_sampleCount) : 0.0f; |
| 37 | } |
| 38 | |
| 39 | } // Input |
| 40 | } // Qt3DInput |
| 41 | |
| 42 | QT_END_NAMESPACE |
| 43 |