1 /* <lambda>null2 * Copyright (C) 2023 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 package android.tools.traces.parsers 18 19 import android.tools.traces.DeviceStateDump 20 import android.tools.traces.NullableDeviceStateDump 21 import android.tools.traces.parsers.perfetto.LayersTraceParser 22 import android.tools.traces.parsers.perfetto.TraceProcessorSession 23 import android.tools.traces.parsers.perfetto.WindowManagerTraceParser 24 import android.tools.traces.parsers.wm.WindowManagerDumpParser 25 import android.tools.traces.surfaceflinger.LayerTraceEntry 26 import android.tools.traces.surfaceflinger.LayersTrace 27 import android.tools.traces.wm.WindowManagerState 28 import android.tools.traces.wm.WindowManagerTrace 29 import android.tools.withTracing 30 31 /** 32 * Represents a state dump containing the [WindowManagerTrace] and the [LayersTrace] both parsed and 33 * in raw (byte) data. 34 */ 35 class DeviceDumpParser { 36 companion object { 37 var lastWmTraceData = ByteArray(0) 38 var lastLayersTraceData = ByteArray(0) 39 40 /** 41 * Creates a device state dump containing the [WindowManagerTrace] and [LayersTrace] 42 * obtained from a `dumpsys` command. The parsed traces will contain a single 43 * [WindowManagerState] or [LayerTraceEntry]. 44 * 45 * @param wmTraceData [WindowManagerTrace] content 46 * @param layersTraceData [LayersTrace] content 47 * @param clearCacheAfterParsing If the caching used while parsing the proto should be 48 * 49 * ``` 50 * cleared or remain in memory 51 * ``` 52 */ 53 @JvmStatic 54 fun fromNullableDump( 55 wmTraceData: ByteArray, 56 layersTraceData: ByteArray, 57 clearCacheAfterParsing: Boolean, 58 ): NullableDeviceStateDump { 59 return withTracing("fromNullableDump") { 60 val hasSfDump = layersTraceData.isNotEmpty() 61 val hasWmDump = wmTraceData.isNotEmpty() 62 63 // If android.tracing.Flags.perfettoWmDump() is enabled, layersTraceData and 64 // wmTraceData correspond to the same perfetto trace file 65 val perfettoTrace = 66 if (hasSfDump) { 67 layersTraceData 68 } else if (android.tracing.Flags.perfettoWmDump() && hasWmDump) { 69 wmTraceData 70 } else { 71 null 72 } 73 74 var wmState: WindowManagerState? = null 75 var layerState: LayerTraceEntry? = null 76 77 perfettoTrace?.let { 78 TraceProcessorSession.loadPerfettoTrace(it) { session -> 79 if (hasSfDump) { 80 layerState = 81 LayersTraceParser() 82 .parse(session, clearCache = clearCacheAfterParsing) 83 .entries 84 .first() 85 } 86 87 if (android.tracing.Flags.perfettoWmDump() && hasWmDump) { 88 wmState = 89 WindowManagerTraceParser() 90 .parse(session, clearCache = clearCacheAfterParsing) 91 .entries 92 .first() 93 } 94 } 95 } 96 97 if (!android.tracing.Flags.perfettoWmDump() && hasWmDump) { 98 wmState = 99 WindowManagerDumpParser() 100 .parse(wmTraceData, clearCache = clearCacheAfterParsing) 101 .entries 102 .first() 103 } 104 105 NullableDeviceStateDump(wmState = wmState, layerState = layerState) 106 } 107 .also { 108 lastWmTraceData = wmTraceData 109 lastLayersTraceData = layersTraceData 110 } 111 } 112 113 /** See [fromNullableDump] */ 114 @JvmStatic 115 fun fromDump( 116 wmTraceData: ByteArray, 117 layersTraceData: ByteArray, 118 clearCacheAfterParsing: Boolean, 119 ): DeviceStateDump { 120 return withTracing("fromDump") { 121 val nullableDump = 122 fromNullableDump(wmTraceData, layersTraceData, clearCacheAfterParsing) 123 DeviceStateDump( 124 nullableDump.wmState ?: error("WMState dump missing"), 125 nullableDump.layerState ?: error("Layer State dump missing"), 126 ) 127 } 128 .also { 129 lastWmTraceData = wmTraceData 130 lastLayersTraceData = layersTraceData 131 } 132 } 133 } 134 } 135