File indexing completed on 2024-05-12 17:02:07

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