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