42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
#pragma once
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#include "function/frame_policy/global.hpp"
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#include "model/Model.hpp"
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#include <cstdint>
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#include <functional>
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namespace aethera {
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/*
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* 固定帧率、最多一帧在途的策略。Scene 创建具体帧；策略持有并重复使用，
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* stop completion 执行前会排空 Scene/Sink 借用并销毁该帧。
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*/
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struct Throttled_Latest_only :
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Def<Throttled_Latest_only, Root<Throttled_Latest_only>> {
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enum struct Start_Result : std::uint8_t {
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started,
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already_running,
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start_in_progress,
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stop_in_progress,
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dependency_unavailable,
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frame_unavailable,
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invalid_frames_per_second,
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interval_out_of_range
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};
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enum struct Stop_Result : std::uint8_t {
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stopping,
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already_stopped,
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already_stopping,
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start_in_progress,
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completion_missing
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};
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using Stop_Completion = std::function<void()>;
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struct Prop : Prev_Prop {};
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struct Private;
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Throttled_Latest_only(proxy<Periodic_Timer_Service> timer_service,
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proxy<FP_Scene> scene,
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proxy<FP_Sink> sink);
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~Throttled_Latest_only() noexcept;
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Start_Result start(double frames_per_second);
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Stop_Result stop(Stop_Completion completion);
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};
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}
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#include "Throttled_Latest_Only.ipp"
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