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Previously, PerformanceTracker registered a callback to be updated on emulation state changes. PerformanceTrackers live in a global variable (g_perf_metrics) within libvideocommon. The callback was stored in a global variable in libcore. This created a race condition at shutdown between these libraries, when the PerfTracker's destructor tried to unregister the callback. Notify the PerfTracker directly from libcore, without callbacks, since Core.cpp already references g_perf_metrics explicitly. Also rename Core::CallOnStateChangedCallbacks to NotifyStateChanged to better reflect what it's doing.
69 lines
1.6 KiB
C++
69 lines
1.6 KiB
C++
// Copyright 2022 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <atomic>
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#include <deque>
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#include "Common/CommonTypes.h"
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#include "Core/Core.h"
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#include "VideoCommon/PerformanceTracker.h"
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namespace Core
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{
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class System;
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}
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class PerformanceMetrics
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{
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public:
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PerformanceMetrics() = default;
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~PerformanceMetrics() = default;
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PerformanceMetrics(const PerformanceMetrics&) = delete;
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PerformanceMetrics& operator=(const PerformanceMetrics&) = delete;
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PerformanceMetrics(PerformanceMetrics&&) = delete;
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PerformanceMetrics& operator=(PerformanceMetrics&&) = delete;
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void Reset();
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void CountFrame();
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void CountVBlank();
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void OnEmulationStateChanged(Core::State state);
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// Call from CPU thread.
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void CountThrottleSleep(DT sleep);
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void AdjustClockSpeed(s64 ticks, u32 new_ppc_clock, u32 old_ppc_clock);
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void CountPerformanceMarker(s64 ticks, u32 ticks_per_second);
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// Getter Functions. May be called from any thread.
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double GetFPS() const;
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double GetVPS() const;
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double GetSpeed() const;
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double GetMaxSpeed() const;
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// ImGui Functions
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void DrawImGuiStats(const float backbuffer_scale);
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private:
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PerformanceTracker m_fps_counter{"render_times.txt"};
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PerformanceTracker m_vps_counter{"vblank_times.txt"};
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double m_graph_max_time = 0.0;
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std::atomic<double> m_speed{};
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std::atomic<double> m_max_speed{};
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struct PerfSample
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{
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TimePoint clock_time;
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TimePoint work_time;
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s64 core_ticks;
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};
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std::deque<PerfSample> m_samples;
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DT m_time_sleeping{};
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};
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extern PerformanceMetrics g_perf_metrics;
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