1 /* 2 * 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.device.traces.parsers.wm 18 19 import android.tools.common.Timestamp 20 import android.tools.common.Timestamps 21 import android.tools.common.parsers.AbstractTraceParser 22 import android.tools.common.traces.wm.WindowManagerState 23 import android.tools.common.traces.wm.WindowManagerTrace 24 import com.android.server.wm.nano.WindowManagerTraceFileProto 25 import com.android.server.wm.nano.WindowManagerTraceProto 26 27 /** Parser for [WindowManagerTrace] objects containing traces */ 28 open class WindowManagerTraceParser(private val legacyTrace: Boolean = false) : 29 AbstractTraceParser< 30 WindowManagerTraceFileProto, WindowManagerTraceProto, WindowManagerState, WindowManagerTrace 31 >() { 32 private var realToElapsedTimeOffsetNanos = 0L 33 34 override val traceName: String = "WM Trace" 35 doDecodeByteArraynull36 override fun doDecodeByteArray(bytes: ByteArray): WindowManagerTraceFileProto = 37 WindowManagerTraceFileProto.parseFrom(bytes) 38 39 override fun createTrace(entries: List<WindowManagerState>): WindowManagerTrace = 40 WindowManagerTrace(entries.toTypedArray()) 41 42 override fun getEntries(input: WindowManagerTraceFileProto): List<WindowManagerTraceProto> = 43 input.entry.toList() 44 45 override fun getTimestamp(entry: WindowManagerTraceProto): Timestamp { 46 require(legacyTrace || realToElapsedTimeOffsetNanos != 0L) 47 return Timestamps.from( 48 elapsedNanos = entry.elapsedRealtimeNanos, 49 unixNanos = entry.elapsedRealtimeNanos + realToElapsedTimeOffsetNanos 50 ) 51 } 52 onBeforeParsenull53 override fun onBeforeParse(input: WindowManagerTraceFileProto) { 54 realToElapsedTimeOffsetNanos = input.realToElapsedTimeOffsetNanos 55 } 56 doParseEntrynull57 override fun doParseEntry(entry: WindowManagerTraceProto): WindowManagerState { 58 return WindowManagerStateBuilder() 59 .atPlace(entry.where) 60 .forTimestamp(entry.elapsedRealtimeNanos) 61 .withRealTimeOffset(realToElapsedTimeOffsetNanos) 62 .forProto(entry.windowManagerService) 63 .build() 64 } 65 } 66