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.config; 18 19 import android.annotation.Nullable; 20 21 import com.android.internal.annotations.VisibleForTesting; 22 23 import java.util.HashMap; 24 import java.util.List; 25 import java.util.Map; 26 27 /** 28 * Brightness config for HDR content 29 */ 30 public class HdrBrightnessData { 31 32 /** 33 * Lux to brightness map 34 */ 35 public final Map<Float, Float> mMaxBrightnessLimits; 36 37 /** 38 * Debounce time for brightness increase 39 */ 40 public final long mBrightnessIncreaseDebounceMillis; 41 42 /** 43 * Brightness increase animation speed 44 */ 45 public final float mScreenBrightnessRampIncrease; 46 47 /** 48 * Debounce time for brightness decrease 49 */ 50 public final long mBrightnessDecreaseDebounceMillis; 51 52 /** 53 * Brightness decrease animation speed 54 */ 55 public final float mScreenBrightnessRampDecrease; 56 57 @VisibleForTesting HdrBrightnessData(Map<Float, Float> maxBrightnessLimits, long brightnessIncreaseDebounceMillis, float screenBrightnessRampIncrease, long brightnessDecreaseDebounceMillis, float screenBrightnessRampDecrease)58 public HdrBrightnessData(Map<Float, Float> maxBrightnessLimits, 59 long brightnessIncreaseDebounceMillis, float screenBrightnessRampIncrease, 60 long brightnessDecreaseDebounceMillis, float screenBrightnessRampDecrease) { 61 mMaxBrightnessLimits = maxBrightnessLimits; 62 mBrightnessIncreaseDebounceMillis = brightnessIncreaseDebounceMillis; 63 mScreenBrightnessRampIncrease = screenBrightnessRampIncrease; 64 mBrightnessDecreaseDebounceMillis = brightnessDecreaseDebounceMillis; 65 mScreenBrightnessRampDecrease = screenBrightnessRampDecrease; 66 } 67 68 @Override toString()69 public String toString() { 70 return "HdrBrightnessData {" 71 + "mMaxBrightnessLimits: " + mMaxBrightnessLimits 72 + ", mBrightnessIncreaseDebounceMillis: " + mBrightnessIncreaseDebounceMillis 73 + ", mScreenBrightnessRampIncrease: " + mScreenBrightnessRampIncrease 74 + ", mBrightnessDecreaseDebounceMillis: " + mBrightnessDecreaseDebounceMillis 75 + ", mScreenBrightnessRampDecrease: " + mScreenBrightnessRampDecrease 76 + "} "; 77 } 78 79 /** 80 * Loads HdrBrightnessData from DisplayConfiguration 81 */ 82 @Nullable loadConfig(DisplayConfiguration config)83 public static HdrBrightnessData loadConfig(DisplayConfiguration config) { 84 HdrBrightnessConfig hdrConfig = config.getHdrBrightnessConfig(); 85 if (hdrConfig == null) { 86 return null; 87 } 88 89 List<NonNegativeFloatToFloatPoint> points = hdrConfig.getBrightnessMap().getPoint(); 90 Map<Float, Float> brightnessLimits = new HashMap<>(); 91 for (NonNegativeFloatToFloatPoint point: points) { 92 brightnessLimits.put(point.getFirst().floatValue(), point.getSecond().floatValue()); 93 } 94 95 return new HdrBrightnessData(brightnessLimits, 96 hdrConfig.getBrightnessIncreaseDebounceMillis().longValue(), 97 hdrConfig.getScreenBrightnessRampIncrease().floatValue(), 98 hdrConfig.getBrightnessDecreaseDebounceMillis().longValue(), 99 hdrConfig.getScreenBrightnessRampDecrease().floatValue()); 100 } 101 } 102