1 /* 2 * Copyright (C) 2021 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 com.android.server.wm.traces.common.service 18 19 import com.android.server.wm.traces.common.errors.ErrorTrace 20 import com.android.server.wm.traces.common.layers.LayersTrace 21 import com.android.server.wm.traces.common.tags.Tag 22 import com.android.server.wm.traces.common.windowmanager.WindowManagerTrace 23 24 /** 25 * Interface for the WM Flicker Service Assertor component. 26 */ 27 interface ITransitionAssertor { 28 /** 29 * Analyzes a [WindowManagerTrace] and/or a [LayersTrace] trace to detect flickers. 30 * 31 * @param tag Tag for the transition 32 * @param wmTrace Window Manager trace 33 * @param layersTrace Surface Flinger trace 34 * @return An error trace 35 */ analyzenull36 fun analyze(tag: Tag, wmTrace: WindowManagerTrace, layersTrace: LayersTrace): ErrorTrace 37 } 38