/*
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* Copyright 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include "EGL.h"
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#include "Thread.h"
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#include <array>
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#include <map>
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#include <vector>
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#include <swappy/swappy_extra.h>
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using TimePoint = std::chrono::steady_clock::time_point;
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using namespace std::chrono_literals;
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namespace swappy {
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class FrameStatistics {
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public:
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explicit FrameStatistics(std::shared_ptr<EGL> egl,
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std::chrono::nanoseconds refreshPeriod) :
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mEgl(egl), mRefreshPeriod(refreshPeriod) {};
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~FrameStatistics() = default;
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void capture(EGLDisplay dpy, EGLSurface surface);
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Swappy_Stats getStats();
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private:
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static constexpr int MAX_FRAME_LAG = 10;
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static constexpr std::chrono::nanoseconds LOG_EVERY_N_NS = 1s;
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void updateFrames(EGLnsecsANDROID start, EGLnsecsANDROID end, uint64_t stat[]);
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void updateIdleFrames(EGL::FrameTimestamps& frameStats) REQUIRES(mMutex);
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void updateLateFrames(EGL::FrameTimestamps& frameStats) REQUIRES(mMutex);
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void updateOffsetFromPreviousFrame(EGL::FrameTimestamps& frameStats) REQUIRES(mMutex);
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void updateLatencyFrames(EGL::FrameTimestamps& frameStats,
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TimePoint frameStartTime) REQUIRES(mMutex);
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void logFrames() REQUIRES(mMutex);
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std::shared_ptr<EGL> mEgl;
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const std::chrono::nanoseconds mRefreshPeriod;
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struct EGLFrame {
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EGLDisplay dpy;
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EGLSurface surface;
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EGLuint64KHR id;
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TimePoint startFrameTime;
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};
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std::vector<EGLFrame> mPendingFrames;
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EGLnsecsANDROID mPrevFrameTime = 0;
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std::mutex mMutex;
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Swappy_Stats mStats GUARDED_BY(mMutex)= {};
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};
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} //namespace swappy
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