1 /* 2 * Copyright (C) 2018 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 #pragma once 17 18 #include <timestatsproto/TimeStatsProtoHeader.h> 19 #include <utils/Timers.h> 20 21 #include <optional> 22 #include <string> 23 #include <unordered_map> 24 #include <vector> 25 26 namespace android { 27 namespace surfaceflinger { 28 29 class TimeStatsHelper { 30 public: 31 class Histogram { 32 public: 33 // Key is the delta time between timestamps 34 // Value is the number of appearances of that delta 35 std::unordered_map<int32_t, int32_t> hist; 36 37 void insert(int32_t delta); 38 int64_t totalTime() const; 39 float averageTime() const; 40 std::string toString() const; 41 }; 42 43 class TimeStatsLayer { 44 public: 45 std::string layerName; 46 std::string packageName; 47 int32_t totalFrames = 0; 48 int32_t droppedFrames = 0; 49 std::unordered_map<std::string, Histogram> deltas; 50 51 std::string toString() const; 52 SFTimeStatsLayerProto toProto() const; 53 }; 54 55 class TimeStatsGlobal { 56 public: 57 int64_t statsStart = 0; 58 int64_t statsEnd = 0; 59 int32_t totalFrames = 0; 60 int32_t missedFrames = 0; 61 int32_t clientCompositionFrames = 0; 62 int64_t displayOnTime = 0; 63 Histogram presentToPresent; 64 std::unordered_map<std::string, TimeStatsLayer> stats; 65 std::unordered_map<uint32_t, nsecs_t> refreshRateStats; 66 67 std::string toString(std::optional<uint32_t> maxLayers) const; 68 SFTimeStatsGlobalProto toProto(std::optional<uint32_t> maxLayers) const; 69 70 private: 71 std::vector<TimeStatsLayer const*> generateDumpStats( 72 std::optional<uint32_t> maxLayers) const; 73 }; 74 }; 75 76 } // namespace surfaceflinger 77 } // namespace android 78