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 android.util.ArrayMap;
20 import android.util.Slog;
21 
22 /**
23  * Provides {@link HighBrightnessModeMetadata}s for {@link DisplayDevice}s. This class should only
24  * be accessed from the display thread.
25  */
26 class HighBrightnessModeMetadataMapper {
27 
28     private static final String TAG = "HighBrightnessModeMetadataMapper";
29 
30     /**
31      *  Map of every internal primary display device {@link HighBrightnessModeMetadata}s indexed by
32      *  {@link DisplayDevice#mUniqueId}.
33      */
34     private final ArrayMap<String, HighBrightnessModeMetadata> mHighBrightnessModeMetadataMap =
35             new ArrayMap<>();
36 
getHighBrightnessModeMetadataLocked(LogicalDisplay display)37     HighBrightnessModeMetadata getHighBrightnessModeMetadataLocked(LogicalDisplay display) {
38         final DisplayDevice device = display.getPrimaryDisplayDeviceLocked();
39         if (device == null) {
40             Slog.wtf(TAG, "Display Device is null in DisplayPowerController for display: "
41                     + display.getDisplayIdLocked());
42             return null;
43         }
44         if (device.getDisplayDeviceConfig().getHighBrightnessModeData() == null) {
45             return null;
46         }
47 
48         final String uniqueId = device.getUniqueId();
49 
50         if (mHighBrightnessModeMetadataMap.containsKey(uniqueId)) {
51             return mHighBrightnessModeMetadataMap.get(uniqueId);
52         }
53 
54         // HBM Time info not present. Create a new one for this physical display.
55         HighBrightnessModeMetadata hbmInfo = new HighBrightnessModeMetadata();
56         mHighBrightnessModeMetadataMap.put(uniqueId, hbmInfo);
57         return hbmInfo;
58     }
59 }
60