57 lines
1.2 KiB
C++
57 lines
1.2 KiB
C++
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/*
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SPDX-FileCopyrightText: 2020 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "renderjournal.h"
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namespace KWin
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{
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RenderJournal::RenderJournal()
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{
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}
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void RenderJournal::beginFrame()
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{
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m_timer.start();
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}
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void RenderJournal::endFrame()
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{
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std::chrono::nanoseconds duration(m_timer.nsecsElapsed());
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if (m_log.count() >= m_size) {
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m_log.dequeue();
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}
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m_log.enqueue(duration);
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}
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std::chrono::nanoseconds RenderJournal::minimum() const
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{
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auto it = std::min_element(m_log.constBegin(), m_log.constEnd());
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return it != m_log.constEnd() ? (*it) : std::chrono::nanoseconds::zero();
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}
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std::chrono::nanoseconds RenderJournal::maximum() const
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{
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auto it = std::max_element(m_log.constBegin(), m_log.constEnd());
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return it != m_log.constEnd() ? (*it) : std::chrono::nanoseconds::zero();
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}
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std::chrono::nanoseconds RenderJournal::average() const
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{
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if (m_log.isEmpty()) {
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return std::chrono::nanoseconds::zero();
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}
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std::chrono::nanoseconds result = std::chrono::nanoseconds::zero();
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for (const std::chrono::nanoseconds &entry : m_log) {
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result += entry;
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}
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return result / m_log.count();
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}
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} // namespace KWin
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