Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 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.systemui.doze; |
| 18 | |
Lucas Dupin | 92e6c89 | 2018-09-25 08:58:24 -0700 | [diff] [blame] | 19 | import android.content.BroadcastReceiver; |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 20 | import android.content.Context; |
Lucas Dupin | 92e6c89 | 2018-09-25 08:58:24 -0700 | [diff] [blame] | 21 | import android.content.Intent; |
| 22 | import android.content.IntentFilter; |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 23 | import android.hardware.Sensor; |
| 24 | import android.hardware.SensorEvent; |
| 25 | import android.hardware.SensorEventListener; |
| 26 | import android.hardware.SensorManager; |
| 27 | import android.os.Handler; |
Lucas Dupin | bf2fbd5 | 2018-11-28 17:14:54 +0100 | [diff] [blame] | 28 | import android.os.SystemProperties; |
Adrian Roos | 2adc263 | 2017-09-05 17:01:42 +0200 | [diff] [blame] | 29 | import android.os.Trace; |
Lucas Dupin | c48b74a | 2018-07-27 11:41:01 +0800 | [diff] [blame] | 30 | import android.os.UserHandle; |
| 31 | import android.provider.Settings; |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 32 | |
Adrian Roos | 3a8f892 | 2017-07-13 19:55:38 +0200 | [diff] [blame] | 33 | import com.android.internal.annotations.VisibleForTesting; |
Fabian Kozynski | 5ca7a51 | 2019-10-16 19:56:11 +0000 | [diff] [blame] | 34 | import com.android.systemui.broadcast.BroadcastDispatcher; |
Lucas Dupin | 5968855 | 2018-11-12 16:34:47 -0800 | [diff] [blame] | 35 | |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 36 | /** |
| 37 | * Controls the screen brightness when dozing. |
| 38 | */ |
Lucas Dupin | 92e6c89 | 2018-09-25 08:58:24 -0700 | [diff] [blame] | 39 | public class DozeScreenBrightness extends BroadcastReceiver implements DozeMachine.Part, |
| 40 | SensorEventListener { |
Lucas Dupin | bf2fbd5 | 2018-11-28 17:14:54 +0100 | [diff] [blame] | 41 | private static final boolean DEBUG_AOD_BRIGHTNESS = SystemProperties |
| 42 | .getBoolean("debug.aod_brightness", false); |
Lucas Dupin | 92e6c89 | 2018-09-25 08:58:24 -0700 | [diff] [blame] | 43 | protected static final String ACTION_AOD_BRIGHTNESS = |
| 44 | "com.android.systemui.doze.AOD_BRIGHTNESS"; |
| 45 | protected static final String BRIGHTNESS_BUCKET = "brightness_bucket"; |
| 46 | |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 47 | private final Context mContext; |
| 48 | private final DozeMachine.Service mDozeService; |
Adrian Roos | c8e29e7 | 2017-08-03 18:25:42 +0200 | [diff] [blame] | 49 | private final DozeHost mDozeHost; |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 50 | private final Handler mHandler; |
| 51 | private final SensorManager mSensorManager; |
| 52 | private final Sensor mLightSensor; |
Fabian Kozynski | 5ca7a51 | 2019-10-16 19:56:11 +0000 | [diff] [blame] | 53 | private final BroadcastDispatcher mBroadcastDispatcher; |
Adrian Roos | 4d4aaba | 2017-07-26 19:17:51 +0200 | [diff] [blame] | 54 | private final int[] mSensorToBrightness; |
Adrian Roos | c8e29e7 | 2017-08-03 18:25:42 +0200 | [diff] [blame] | 55 | private final int[] mSensorToScrimOpacity; |
Lucas Dupin | 92e6c89 | 2018-09-25 08:58:24 -0700 | [diff] [blame] | 56 | private final boolean mDebuggable; |
Adrian Roos | c7fd696 | 2017-09-06 16:46:46 +0200 | [diff] [blame] | 57 | |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 58 | private boolean mRegistered; |
Adrian Roos | a79ad59 | 2017-08-31 15:17:17 +0200 | [diff] [blame] | 59 | private int mDefaultDozeBrightness; |
Adrian Roos | c7fd696 | 2017-09-06 16:46:46 +0200 | [diff] [blame] | 60 | private boolean mPaused = false; |
Lucas Dupin | 00603f0 | 2019-03-29 12:51:55 -0700 | [diff] [blame] | 61 | private boolean mScreenOff = false; |
Adrian Roos | c7fd696 | 2017-09-06 16:46:46 +0200 | [diff] [blame] | 62 | private int mLastSensorValue = -1; |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 63 | |
Lucas Dupin | 92e6c89 | 2018-09-25 08:58:24 -0700 | [diff] [blame] | 64 | /** |
| 65 | * Debug value used for emulating various display brightness buckets: |
| 66 | * |
| 67 | * {@code am broadcast -p com.android.systemui -a com.android.systemui.doze.AOD_BRIGHTNESS |
| 68 | * --ei brightness_bucket 1} |
| 69 | */ |
| 70 | private int mDebugBrightnessBucket = -1; |
| 71 | |
| 72 | @VisibleForTesting |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 73 | public DozeScreenBrightness(Context context, DozeMachine.Service service, |
Fabian Kozynski | 5ca7a51 | 2019-10-16 19:56:11 +0000 | [diff] [blame] | 74 | SensorManager sensorManager, Sensor lightSensor, |
| 75 | BroadcastDispatcher broadcastDispatcher, DozeHost host, |
Adrian Roos | a79ad59 | 2017-08-31 15:17:17 +0200 | [diff] [blame] | 76 | Handler handler, int defaultDozeBrightness, int[] sensorToBrightness, |
Lucas Dupin | 92e6c89 | 2018-09-25 08:58:24 -0700 | [diff] [blame] | 77 | int[] sensorToScrimOpacity, boolean debuggable) { |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 78 | mContext = context; |
| 79 | mDozeService = service; |
| 80 | mSensorManager = sensorManager; |
| 81 | mLightSensor = lightSensor; |
Fabian Kozynski | 5ca7a51 | 2019-10-16 19:56:11 +0000 | [diff] [blame] | 82 | mBroadcastDispatcher = broadcastDispatcher; |
Adrian Roos | c8e29e7 | 2017-08-03 18:25:42 +0200 | [diff] [blame] | 83 | mDozeHost = host; |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 84 | mHandler = handler; |
Lucas Dupin | 92e6c89 | 2018-09-25 08:58:24 -0700 | [diff] [blame] | 85 | mDebuggable = debuggable; |
Adrian Roos | 3a8f892 | 2017-07-13 19:55:38 +0200 | [diff] [blame] | 86 | |
Adrian Roos | a79ad59 | 2017-08-31 15:17:17 +0200 | [diff] [blame] | 87 | mDefaultDozeBrightness = defaultDozeBrightness; |
| 88 | mSensorToBrightness = sensorToBrightness; |
| 89 | mSensorToScrimOpacity = sensorToScrimOpacity; |
Lucas Dupin | 92e6c89 | 2018-09-25 08:58:24 -0700 | [diff] [blame] | 90 | |
| 91 | if (mDebuggable) { |
Lucas Dupin | bf2fbd5 | 2018-11-28 17:14:54 +0100 | [diff] [blame] | 92 | IntentFilter filter = new IntentFilter(); |
| 93 | filter.addAction(ACTION_AOD_BRIGHTNESS); |
Fabian Kozynski | 5ca7a51 | 2019-10-16 19:56:11 +0000 | [diff] [blame] | 94 | mBroadcastDispatcher.registerReceiver(this, filter, handler, UserHandle.ALL); |
Lucas Dupin | 92e6c89 | 2018-09-25 08:58:24 -0700 | [diff] [blame] | 95 | } |
Adrian Roos | a79ad59 | 2017-08-31 15:17:17 +0200 | [diff] [blame] | 96 | } |
| 97 | |
Adrian Roos | a79ad59 | 2017-08-31 15:17:17 +0200 | [diff] [blame] | 98 | public DozeScreenBrightness(Context context, DozeMachine.Service service, |
Fabian Kozynski | 5ca7a51 | 2019-10-16 19:56:11 +0000 | [diff] [blame] | 99 | SensorManager sensorManager, Sensor lightSensor, |
| 100 | BroadcastDispatcher broadcastDispatcher, DozeHost host, Handler handler, |
| 101 | AlwaysOnDisplayPolicy policy) { |
| 102 | this(context, service, sensorManager, lightSensor, broadcastDispatcher, host, handler, |
Adrian Roos | a79ad59 | 2017-08-31 15:17:17 +0200 | [diff] [blame] | 103 | context.getResources().getInteger( |
| 104 | com.android.internal.R.integer.config_screenBrightnessDoze), |
Lucas Dupin | bf2fbd5 | 2018-11-28 17:14:54 +0100 | [diff] [blame] | 105 | policy.screenBrightnessArray, policy.dimmingScrimArray, DEBUG_AOD_BRIGHTNESS); |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 106 | } |
| 107 | |
| 108 | @Override |
| 109 | public void transitionTo(DozeMachine.State oldState, DozeMachine.State newState) { |
| 110 | switch (newState) { |
| 111 | case INITIALIZED: |
| 112 | resetBrightnessToDefault(); |
| 113 | break; |
| 114 | case DOZE_AOD: |
| 115 | case DOZE_REQUEST_PULSE: |
| 116 | setLightSensorEnabled(true); |
| 117 | break; |
| 118 | case DOZE: |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 119 | setLightSensorEnabled(false); |
| 120 | resetBrightnessToDefault(); |
| 121 | break; |
| 122 | case FINISH: |
Lucas Dupin | 92e6c89 | 2018-09-25 08:58:24 -0700 | [diff] [blame] | 123 | onDestroy(); |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 124 | break; |
| 125 | } |
Adrian Roos | c7fd696 | 2017-09-06 16:46:46 +0200 | [diff] [blame] | 126 | if (newState != DozeMachine.State.FINISH) { |
Lucas Dupin | 00603f0 | 2019-03-29 12:51:55 -0700 | [diff] [blame] | 127 | setScreenOff(newState == DozeMachine.State.DOZE); |
Adrian Roos | c7fd696 | 2017-09-06 16:46:46 +0200 | [diff] [blame] | 128 | setPaused(newState == DozeMachine.State.DOZE_AOD_PAUSED); |
| 129 | } |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 130 | } |
| 131 | |
Lucas Dupin | 92e6c89 | 2018-09-25 08:58:24 -0700 | [diff] [blame] | 132 | private void onDestroy() { |
| 133 | setLightSensorEnabled(false); |
| 134 | if (mDebuggable) { |
Fabian Kozynski | 5ca7a51 | 2019-10-16 19:56:11 +0000 | [diff] [blame] | 135 | mBroadcastDispatcher.unregisterReceiver(this); |
Lucas Dupin | 92e6c89 | 2018-09-25 08:58:24 -0700 | [diff] [blame] | 136 | } |
| 137 | } |
| 138 | |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 139 | @Override |
| 140 | public void onSensorChanged(SensorEvent event) { |
Adrian Roos | 2adc263 | 2017-09-05 17:01:42 +0200 | [diff] [blame] | 141 | Trace.beginSection("DozeScreenBrightness.onSensorChanged" + event.values[0]); |
| 142 | try { |
| 143 | if (mRegistered) { |
| 144 | mLastSensorValue = (int) event.values[0]; |
Lucas Dupin | 00603f0 | 2019-03-29 12:51:55 -0700 | [diff] [blame] | 145 | updateBrightnessAndReady(false /* force */); |
Adrian Roos | 2adc263 | 2017-09-05 17:01:42 +0200 | [diff] [blame] | 146 | } |
| 147 | } finally { |
| 148 | Trace.endSection(); |
Adrian Roos | c7fd696 | 2017-09-06 16:46:46 +0200 | [diff] [blame] | 149 | } |
| 150 | } |
| 151 | |
Lucas Dupin | 00603f0 | 2019-03-29 12:51:55 -0700 | [diff] [blame] | 152 | private void updateBrightnessAndReady(boolean force) { |
| 153 | if (force || mRegistered || mDebugBrightnessBucket != -1) { |
Lucas Dupin | 92e6c89 | 2018-09-25 08:58:24 -0700 | [diff] [blame] | 154 | int sensorValue = mDebugBrightnessBucket == -1 |
| 155 | ? mLastSensorValue : mDebugBrightnessBucket; |
| 156 | int brightness = computeBrightness(sensorValue); |
Adrian Roos | c7fd696 | 2017-09-06 16:46:46 +0200 | [diff] [blame] | 157 | boolean brightnessReady = brightness > 0; |
| 158 | if (brightnessReady) { |
Lucas Dupin | c48b74a | 2018-07-27 11:41:01 +0800 | [diff] [blame] | 159 | mDozeService.setDozeScreenBrightness(clampToUserSetting(brightness)); |
Adrian Roos | 4d4aaba | 2017-07-26 19:17:51 +0200 | [diff] [blame] | 160 | } |
Adrian Roos | c8e29e7 | 2017-08-03 18:25:42 +0200 | [diff] [blame] | 161 | |
Adrian Roos | c7fd696 | 2017-09-06 16:46:46 +0200 | [diff] [blame] | 162 | int scrimOpacity = -1; |
Lucas Dupin | 00603f0 | 2019-03-29 12:51:55 -0700 | [diff] [blame] | 163 | if (mPaused || mScreenOff) { |
Adrian Roos | c7fd696 | 2017-09-06 16:46:46 +0200 | [diff] [blame] | 164 | // If AOD is paused, force the screen black until the |
| 165 | // sensor reports a new brightness. This ensures that when the screen comes on |
| 166 | // again, it will only show after the brightness sensor has stabilized, |
| 167 | // avoiding a potential flicker. |
| 168 | scrimOpacity = 255; |
| 169 | } else if (brightnessReady) { |
| 170 | // Only unblank scrim once brightness is ready. |
Lucas Dupin | 92e6c89 | 2018-09-25 08:58:24 -0700 | [diff] [blame] | 171 | scrimOpacity = computeScrimOpacity(sensorValue); |
Adrian Roos | c7fd696 | 2017-09-06 16:46:46 +0200 | [diff] [blame] | 172 | } |
Adrian Roos | c8e29e7 | 2017-08-03 18:25:42 +0200 | [diff] [blame] | 173 | if (scrimOpacity >= 0) { |
| 174 | mDozeHost.setAodDimmingScrim(scrimOpacity / 255f); |
| 175 | } |
Adrian Roos | 3a8f892 | 2017-07-13 19:55:38 +0200 | [diff] [blame] | 176 | } |
| 177 | } |
| 178 | |
Adrian Roos | c8e29e7 | 2017-08-03 18:25:42 +0200 | [diff] [blame] | 179 | private int computeScrimOpacity(int sensorValue) { |
| 180 | if (sensorValue < 0 || sensorValue >= mSensorToScrimOpacity.length) { |
| 181 | return -1; |
| 182 | } |
| 183 | return mSensorToScrimOpacity[sensorValue]; |
| 184 | } |
| 185 | |
Adrian Roos | 3a8f892 | 2017-07-13 19:55:38 +0200 | [diff] [blame] | 186 | private int computeBrightness(int sensorValue) { |
Adrian Roos | 4d4aaba | 2017-07-26 19:17:51 +0200 | [diff] [blame] | 187 | if (sensorValue < 0 || sensorValue >= mSensorToBrightness.length) { |
| 188 | return -1; |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 189 | } |
Adrian Roos | 4d4aaba | 2017-07-26 19:17:51 +0200 | [diff] [blame] | 190 | return mSensorToBrightness[sensorValue]; |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 191 | } |
| 192 | |
| 193 | @Override |
| 194 | public void onAccuracyChanged(Sensor sensor, int accuracy) { |
| 195 | } |
| 196 | |
| 197 | private void resetBrightnessToDefault() { |
Lucas Dupin | c48b74a | 2018-07-27 11:41:01 +0800 | [diff] [blame] | 198 | mDozeService.setDozeScreenBrightness(clampToUserSetting(mDefaultDozeBrightness)); |
Adrian Roos | c7fd696 | 2017-09-06 16:46:46 +0200 | [diff] [blame] | 199 | mDozeHost.setAodDimmingScrim(0f); |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 200 | } |
| 201 | |
Lucas Dupin | c48b74a | 2018-07-27 11:41:01 +0800 | [diff] [blame] | 202 | private int clampToUserSetting(int brightness) { |
| 203 | int userSetting = Settings.System.getIntForUser(mContext.getContentResolver(), |
| 204 | Settings.System.SCREEN_BRIGHTNESS, Integer.MAX_VALUE, |
| 205 | UserHandle.USER_CURRENT); |
| 206 | return Math.min(brightness, userSetting); |
| 207 | } |
| 208 | |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 209 | private void setLightSensorEnabled(boolean enabled) { |
| 210 | if (enabled && !mRegistered && mLightSensor != null) { |
Adrian Roos | a79ad59 | 2017-08-31 15:17:17 +0200 | [diff] [blame] | 211 | // Wait until we get an event from the sensor until indicating ready. |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 212 | mRegistered = mSensorManager.registerListener(this, mLightSensor, |
| 213 | SensorManager.SENSOR_DELAY_NORMAL, mHandler); |
Adrian Roos | c7fd696 | 2017-09-06 16:46:46 +0200 | [diff] [blame] | 214 | mLastSensorValue = -1; |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 215 | } else if (!enabled && mRegistered) { |
| 216 | mSensorManager.unregisterListener(this); |
| 217 | mRegistered = false; |
Adrian Roos | c7fd696 | 2017-09-06 16:46:46 +0200 | [diff] [blame] | 218 | mLastSensorValue = -1; |
Adrian Roos | a79ad59 | 2017-08-31 15:17:17 +0200 | [diff] [blame] | 219 | // Sensor is not enabled, hence we use the default brightness and are always ready. |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 220 | } |
| 221 | } |
Adrian Roos | a79ad59 | 2017-08-31 15:17:17 +0200 | [diff] [blame] | 222 | |
Adrian Roos | c7fd696 | 2017-09-06 16:46:46 +0200 | [diff] [blame] | 223 | private void setPaused(boolean paused) { |
| 224 | if (mPaused != paused) { |
| 225 | mPaused = paused; |
Lucas Dupin | 00603f0 | 2019-03-29 12:51:55 -0700 | [diff] [blame] | 226 | updateBrightnessAndReady(false /* force */); |
| 227 | } |
| 228 | } |
| 229 | |
| 230 | private void setScreenOff(boolean screenOff) { |
| 231 | if (mScreenOff != screenOff) { |
| 232 | mScreenOff = screenOff; |
| 233 | updateBrightnessAndReady(true /* force */); |
Adrian Roos | a79ad59 | 2017-08-31 15:17:17 +0200 | [diff] [blame] | 234 | } |
| 235 | } |
| 236 | |
Lucas Dupin | 92e6c89 | 2018-09-25 08:58:24 -0700 | [diff] [blame] | 237 | @Override |
| 238 | public void onReceive(Context context, Intent intent) { |
| 239 | mDebugBrightnessBucket = intent.getIntExtra(BRIGHTNESS_BUCKET, -1); |
Lucas Dupin | 00603f0 | 2019-03-29 12:51:55 -0700 | [diff] [blame] | 240 | updateBrightnessAndReady(false /* force */); |
Lucas Dupin | 92e6c89 | 2018-09-25 08:58:24 -0700 | [diff] [blame] | 241 | } |
Adrian Roos | 2981eb0 | 2017-05-26 18:40:09 -0700 | [diff] [blame] | 242 | } |