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 com.android.server.display;
18 
19 import java.util.ArrayDeque;
20 
21 
22 /**
23  * Represents High Brightness Mode metadata associated
24  * with a specific internal physical display.
25  * Required for separately storing data like time information,
26  * and related events when display was in HBM mode per
27  * physical internal display.
28  */
29 class HighBrightnessModeMetadata {
30     /**
31      * Queue of previous HBM-events ordered from most recent to least recent.
32      * Meant to store only the events that fall into the most recent
33      * {@link HighBrightnessModeData#timeWindowMillis mHbmData.timeWindowMillis}.
34      */
35     private final ArrayDeque<HbmEvent> mEvents = new ArrayDeque<>();
36 
37     /**
38      * If HBM is currently running, this is the start time for the current HBM session.
39      */
40     private long mRunningStartTimeMillis = -1;
41 
getRunningStartTimeMillis()42     public long getRunningStartTimeMillis() {
43         return mRunningStartTimeMillis;
44     }
45 
setRunningStartTimeMillis(long setTime)46     public void setRunningStartTimeMillis(long setTime) {
47         mRunningStartTimeMillis = setTime;
48     }
49 
getHbmEventQueue()50     public ArrayDeque<HbmEvent> getHbmEventQueue() {
51         return mEvents;
52     }
53 
addHbmEvent(HbmEvent hbmEvent)54     public void addHbmEvent(HbmEvent hbmEvent) {
55         mEvents.addFirst(hbmEvent);
56     }
57 }
58 
59