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31 lines
877 B
C++
31 lines
877 B
C++
#include <PreCompiled.h>
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#include <Core/Fps.h>
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namespace mlx
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{
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void FpsManager::Init()
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{
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m_timer = static_cast<std::uint64_t>(std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::high_resolution_clock::now().time_since_epoch()).count());
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m_fps_before = m_timer;
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m_fps_now = m_timer;
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}
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bool FpsManager::Update()
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{
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using namespace std::chrono_literals;
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m_fps_now = static_cast<std::uint64_t>(std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::high_resolution_clock::now().time_since_epoch()).count());
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if(std::chrono::duration<std::uint64_t>{m_fps_now - m_timer} >= 1s)
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m_timer += m_fps_now;
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m_fps_elapsed_time = m_fps_now - m_fps_before;
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if(m_fps_elapsed_time >= m_ns)
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{
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m_fps_before += m_ns;
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return true;
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}
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std::this_thread::sleep_for(std::chrono::duration<double, std::nano>(m_ns - 1));
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return false;
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}
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}
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