84 lines
1.9 KiB
C++
84 lines
1.9 KiB
C++
// Copyright 2015 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <chrono>
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#include <cstddef>
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#include <vector>
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#include "common/synchronized_wrapper.h"
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namespace Common {
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namespace Profiling {
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using Clock = std::chrono::high_resolution_clock;
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using Duration = Clock::duration;
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struct ProfilingFrameResult {
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/// Time since the last delivered frame
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Duration interframe_time;
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/// Time spent processing a frame, excluding VSync
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Duration frame_time;
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};
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class ProfilingManager final {
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public:
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ProfilingManager();
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/// This should be called after swapping screen buffers.
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void BeginFrame();
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/// This should be called before swapping screen buffers.
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void FinishFrame();
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/// Get the timing results from the previous frame. This is updated when you call FinishFrame().
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const ProfilingFrameResult& GetPreviousFrameResults() const {
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return results;
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}
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private:
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Clock::time_point last_frame_end;
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Clock::time_point this_frame_start;
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ProfilingFrameResult results;
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};
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struct AggregatedDuration {
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Duration avg, min, max;
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};
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struct AggregatedFrameResult {
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/// Time since the last delivered frame
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AggregatedDuration interframe_time;
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/// Time spent processing a frame, excluding VSync
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AggregatedDuration frame_time;
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float fps;
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};
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class TimingResultsAggregator final {
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public:
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TimingResultsAggregator(size_t window_size);
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void Clear();
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void AddFrame(const ProfilingFrameResult& frame_result);
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AggregatedFrameResult GetAggregatedResults() const;
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size_t max_window_size;
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size_t window_size;
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size_t cursor;
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std::vector<Duration> interframe_times;
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std::vector<Duration> frame_times;
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};
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ProfilingManager& GetProfilingManager();
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SynchronizedRef<TimingResultsAggregator> GetTimingResultsAggregator();
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} // namespace Profiling
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} // namespace Common
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