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DaemoandGitHub
63fe3088bf
The current Fps manager will sometime skip the intended delay and start the next frame immediately, I'm not 100% sure why it happens, but I rewrote most of it to stay consistent and improved the overall precision by compensating for OS wake delay after sleep and finishing with a busy wait I also changed the behavior of mlx_set_fps_goal to allow zero/negative values and treat them as uncapped (like most graphics libraries)
32 lines
744 B
C++
32 lines
744 B
C++
#ifndef __MLX_FPS__
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#define __MLX_FPS__
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#include <chrono>
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namespace mlx
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{
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typedef std::chrono::steady_clock fps_clock;
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class FpsManager
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{
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public:
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FpsManager() = default;
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void Init();
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void WaitUntilNextFrame();
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inline void SetMaxFPS(std::uint32_t fps) noexcept { m_target_delta = fps_clock::duration(std::chrono::seconds(1)) / fps;}
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~FpsManager() = default;
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private:
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fps_clock::time_point m_current_time;
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fps_clock::time_point m_target_time;
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fps_clock::time_point m_last_time_record;
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fps_clock::duration m_delta_time = fps_clock::duration().zero();
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fps_clock::duration m_target_delta = fps_clock::duration().zero();
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fps_clock::duration m_sleep_margin = std::chrono::microseconds(200);
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};
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}
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#endif
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