1 /* 2 * Copyright 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include "EGL.h" 20 #include "Thread.h" 21 22 #include <array> 23 #include <map> 24 #include <vector> 25 26 #include <swappy/swappy_extra.h> 27 28 using TimePoint = std::chrono::steady_clock::time_point; 29 using namespace std::chrono_literals; 30 31 namespace swappy { 32 33 34 class FrameStatistics { 35 public: FrameStatistics(std::shared_ptr<EGL> egl,std::chrono::nanoseconds refreshPeriod)36 explicit FrameStatistics(std::shared_ptr<EGL> egl, 37 std::chrono::nanoseconds refreshPeriod) : 38 mEgl(egl), mRefreshPeriod(refreshPeriod) {}; 39 ~FrameStatistics() = default; 40 41 void capture(EGLDisplay dpy, EGLSurface surface); 42 43 Swappy_Stats getStats(); 44 45 private: 46 static constexpr int MAX_FRAME_LAG = 10; 47 static constexpr std::chrono::nanoseconds LOG_EVERY_N_NS = 1s; 48 49 void updateFrames(EGLnsecsANDROID start, EGLnsecsANDROID end, uint64_t stat[]); 50 void updateIdleFrames(EGL::FrameTimestamps& frameStats) REQUIRES(mMutex); 51 void updateLateFrames(EGL::FrameTimestamps& frameStats) REQUIRES(mMutex); 52 void updateOffsetFromPreviousFrame(EGL::FrameTimestamps& frameStats) REQUIRES(mMutex); 53 void updateLatencyFrames(EGL::FrameTimestamps& frameStats, 54 TimePoint frameStartTime) REQUIRES(mMutex); 55 void logFrames() REQUIRES(mMutex); 56 57 std::shared_ptr<EGL> mEgl; 58 const std::chrono::nanoseconds mRefreshPeriod; 59 60 struct EGLFrame { 61 EGLDisplay dpy; 62 EGLSurface surface; 63 EGLuint64KHR id; 64 TimePoint startFrameTime; 65 }; 66 std::vector<EGLFrame> mPendingFrames; 67 EGLnsecsANDROID mPrevFrameTime = 0; 68 69 std::mutex mMutex; 70 Swappy_Stats mStats GUARDED_BY(mMutex)= {}; 71 }; 72 73 } //namespace swappy 74