Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 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 | |
Jeff Brown | ad9ef19 | 2014-04-08 17:26:30 -0700 | [diff] [blame] | 17 | package com.android.server.display; |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 18 | |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 19 | import android.content.Context; |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 20 | import android.os.Handler; |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 21 | import android.os.Looper; |
| 22 | import android.os.PowerManager; |
Michael Wright | c3e6af8 | 2017-07-25 22:31:03 +0100 | [diff] [blame] | 23 | import android.os.Trace; |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 24 | import android.util.FloatProperty; |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 25 | import android.util.Slog; |
| 26 | import android.view.Choreographer; |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 27 | import android.view.Display; |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 28 | |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 29 | import com.android.internal.BrightnessSynchronizer; |
| 30 | |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 31 | import java.io.PrintWriter; |
| 32 | |
| 33 | /** |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 34 | * Controls the display power state. |
| 35 | * <p> |
Jeff Brown | ad9ef19 | 2014-04-08 17:26:30 -0700 | [diff] [blame] | 36 | * This component is similar in nature to a {@link android.view.View} except that it |
| 37 | * describes the properties of a display. When properties are changed, the component |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 38 | * invalidates itself and posts a callback to apply the changes in a consistent order. |
| 39 | * This mechanism enables multiple properties of the display power state to be animated |
| 40 | * together smoothly by the animation framework. Some of the work to blank or unblank |
| 41 | * the display is done on a separate thread to avoid blocking the looper. |
| 42 | * </p><p> |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 43 | * This component must only be created or accessed by the {@link Looper} thread |
| 44 | * that belongs to the {@link DisplayPowerController}. |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 45 | * </p><p> |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 46 | * We don't need to worry about holding a suspend blocker here because the |
Jeff Brown | ad9ef19 | 2014-04-08 17:26:30 -0700 | [diff] [blame] | 47 | * power manager does that for us whenever there is a change in progress. |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 48 | * </p> |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 49 | */ |
| 50 | final class DisplayPowerState { |
| 51 | private static final String TAG = "DisplayPowerState"; |
| 52 | |
| 53 | private static boolean DEBUG = false; |
Michael Wright | c3e6af8 | 2017-07-25 22:31:03 +0100 | [diff] [blame] | 54 | private static String COUNTER_COLOR_FADE = "ColorFadeLevel"; |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 55 | |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 56 | private final Handler mHandler; |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 57 | private final Choreographer mChoreographer; |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 58 | private final DisplayBlanker mBlanker; |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 59 | private final ColorFade mColorFade; |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 60 | private final PhotonicModulator mPhotonicModulator; |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 61 | |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 62 | private int mScreenState; |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 63 | private float mScreenBrightness; |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 64 | private boolean mScreenReady; |
| 65 | private boolean mScreenUpdatePending; |
| 66 | |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 67 | private boolean mColorFadePrepared; |
| 68 | private float mColorFadeLevel; |
| 69 | private boolean mColorFadeReady; |
| 70 | private boolean mColorFadeDrawPending; |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 71 | |
| 72 | private Runnable mCleanListener; |
| 73 | |
Jeff Brown | 5d6443b | 2015-04-10 20:15:01 -0700 | [diff] [blame] | 74 | public DisplayPowerState(DisplayBlanker blanker, ColorFade colorFade) { |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 75 | mHandler = new Handler(true /*async*/); |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 76 | mChoreographer = Choreographer.getInstance(); |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 77 | mBlanker = blanker; |
Jeff Brown | 5d6443b | 2015-04-10 20:15:01 -0700 | [diff] [blame] | 78 | mColorFade = colorFade; |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 79 | mPhotonicModulator = new PhotonicModulator(); |
Jeff Brown | 0a43477 | 2014-09-30 14:42:27 -0700 | [diff] [blame] | 80 | mPhotonicModulator.start(); |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 81 | |
Jeff Brown | f75724b | 2012-08-25 13:34:32 -0700 | [diff] [blame] | 82 | // At boot time, we know that the screen is on and the electron beam |
| 83 | // animation is not playing. We don't know the screen's brightness though, |
| 84 | // so prepare to set it to a known state when the state is next applied. |
| 85 | // Although we set the brightness to full on here, the display power controller |
| 86 | // will reset the brightness to a new level immediately before the changes |
| 87 | // actually have a chance to be applied. |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 88 | mScreenState = Display.STATE_ON; |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 89 | mScreenBrightness = PowerManager.BRIGHTNESS_MAX; |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 90 | scheduleScreenUpdate(); |
| 91 | |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 92 | mColorFadePrepared = false; |
| 93 | mColorFadeLevel = 1.0f; |
| 94 | mColorFadeReady = true; |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 95 | } |
| 96 | |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 97 | public static final FloatProperty<DisplayPowerState> COLOR_FADE_LEVEL = |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 98 | new FloatProperty<DisplayPowerState>("electronBeamLevel") { |
| 99 | @Override |
| 100 | public void setValue(DisplayPowerState object, float value) { |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 101 | object.setColorFadeLevel(value); |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 102 | } |
| 103 | |
| 104 | @Override |
| 105 | public Float get(DisplayPowerState object) { |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 106 | return object.getColorFadeLevel(); |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 107 | } |
| 108 | }; |
| 109 | |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 110 | |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 111 | public static final FloatProperty<DisplayPowerState> SCREEN_BRIGHTNESS_FLOAT = |
| 112 | new FloatProperty<DisplayPowerState>("screenBrightnessFloat") { |
| 113 | @Override |
| 114 | public void setValue(DisplayPowerState object, float value) { |
| 115 | object.setScreenBrightness(value); |
| 116 | } |
| 117 | |
| 118 | @Override |
| 119 | public Float get(DisplayPowerState object) { |
| 120 | return object.getScreenBrightness(); |
| 121 | } |
| 122 | }; |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 123 | |
| 124 | /** |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 125 | * Sets whether the screen is on, off, or dozing. |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 126 | */ |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 127 | public void setScreenState(int state) { |
| 128 | if (mScreenState != state) { |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 129 | if (DEBUG) { |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 130 | Slog.d(TAG, "setScreenState: state=" + state); |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 131 | } |
| 132 | |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 133 | mScreenState = state; |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 134 | mScreenReady = false; |
| 135 | scheduleScreenUpdate(); |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 136 | } |
| 137 | } |
| 138 | |
| 139 | /** |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 140 | * Gets the desired screen state. |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 141 | */ |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 142 | public int getScreenState() { |
| 143 | return mScreenState; |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 144 | } |
| 145 | |
| 146 | /** |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 147 | * Sets the display brightness. |
| 148 | * |
Fiona Campbell | c395a29 | 2020-04-24 11:55:30 +0100 | [diff] [blame] | 149 | * @param brightness The brightness, ranges from 0.0f (minimum / off) to 1.0f (brightest). |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 150 | */ |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 151 | public void setScreenBrightness(float brightness) { |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 152 | if (mScreenBrightness != brightness) { |
| 153 | if (DEBUG) { |
| 154 | Slog.d(TAG, "setScreenBrightness: brightness=" + brightness); |
| 155 | } |
| 156 | |
| 157 | mScreenBrightness = brightness; |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 158 | if (mScreenState != Display.STATE_OFF) { |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 159 | mScreenReady = false; |
| 160 | scheduleScreenUpdate(); |
| 161 | } |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | /** |
| 166 | * Gets the screen brightness. |
| 167 | */ |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 168 | public float getScreenBrightness() { |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 169 | return mScreenBrightness; |
| 170 | } |
| 171 | |
| 172 | /** |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 173 | * Prepares the electron beam to turn on or off. |
| 174 | * This method should be called before starting an animation because it |
| 175 | * can take a fair amount of time to prepare the electron beam surface. |
| 176 | * |
Jeff Brown | 8b9cf1c | 2012-10-07 14:54:17 -0700 | [diff] [blame] | 177 | * @param mode The electron beam animation mode to prepare. |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 178 | * @return True if the electron beam was prepared. |
| 179 | */ |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 180 | public boolean prepareColorFade(Context context, int mode) { |
Narayan Kamath | 3881998 | 2017-07-06 18:15:30 +0100 | [diff] [blame] | 181 | if (mColorFade == null || !mColorFade.prepare(context, mode)) { |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 182 | mColorFadePrepared = false; |
| 183 | mColorFadeReady = true; |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 184 | return false; |
| 185 | } |
| 186 | |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 187 | mColorFadePrepared = true; |
| 188 | mColorFadeReady = false; |
| 189 | scheduleColorFadeDraw(); |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 190 | return true; |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 191 | } |
| 192 | |
| 193 | /** |
Michael Lentine | d73854d | 2015-09-25 10:55:26 -0700 | [diff] [blame] | 194 | * Dismisses the color fade surface. |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 195 | */ |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 196 | public void dismissColorFade() { |
Michael Wright | c3e6af8 | 2017-07-25 22:31:03 +0100 | [diff] [blame] | 197 | Trace.traceCounter(Trace.TRACE_TAG_POWER, COUNTER_COLOR_FADE, 100); |
Narayan Kamath | 3881998 | 2017-07-06 18:15:30 +0100 | [diff] [blame] | 198 | if (mColorFade != null) mColorFade.dismiss(); |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 199 | mColorFadePrepared = false; |
| 200 | mColorFadeReady = true; |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 201 | } |
| 202 | |
Michael Lentine | d73854d | 2015-09-25 10:55:26 -0700 | [diff] [blame] | 203 | /** |
| 204 | * Dismisses the color fade resources. |
| 205 | */ |
| 206 | public void dismissColorFadeResources() { |
Narayan Kamath | 3881998 | 2017-07-06 18:15:30 +0100 | [diff] [blame] | 207 | if (mColorFade != null) mColorFade.dismissResources(); |
Michael Lentine | d73854d | 2015-09-25 10:55:26 -0700 | [diff] [blame] | 208 | } |
| 209 | |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 210 | /** |
| 211 | * Sets the level of the electron beam steering current. |
| 212 | * |
| 213 | * The display is blanked when the level is 0.0. In normal use, the electron |
| 214 | * beam should have a value of 1.0. The electron beam is unstable in between |
| 215 | * these states and the picture quality may be compromised. For best effect, |
| 216 | * the electron beam should be warmed up or cooled off slowly. |
| 217 | * |
| 218 | * Warning: Electron beam emits harmful radiation. Avoid direct exposure to |
| 219 | * skin or eyes. |
| 220 | * |
| 221 | * @param level The level, ranges from 0.0 (full off) to 1.0 (full on). |
| 222 | */ |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 223 | public void setColorFadeLevel(float level) { |
| 224 | if (mColorFadeLevel != level) { |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 225 | if (DEBUG) { |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 226 | Slog.d(TAG, "setColorFadeLevel: level=" + level); |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 227 | } |
| 228 | |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 229 | mColorFadeLevel = level; |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 230 | if (mScreenState != Display.STATE_OFF) { |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 231 | mScreenReady = false; |
| 232 | scheduleScreenUpdate(); // update backlight brightness |
| 233 | } |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 234 | if (mColorFadePrepared) { |
| 235 | mColorFadeReady = false; |
| 236 | scheduleColorFadeDraw(); |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 237 | } |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 238 | } |
| 239 | } |
| 240 | |
| 241 | /** |
| 242 | * Gets the level of the electron beam steering current. |
| 243 | */ |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 244 | public float getColorFadeLevel() { |
| 245 | return mColorFadeLevel; |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 246 | } |
| 247 | |
| 248 | /** |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 249 | * Returns true if no properties have been invalidated. |
| 250 | * Otherwise, returns false and promises to invoke the specified listener |
| 251 | * when the properties have all been applied. |
| 252 | * The listener always overrides any previously set listener. |
| 253 | */ |
| 254 | public boolean waitUntilClean(Runnable listener) { |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 255 | if (!mScreenReady || !mColorFadeReady) { |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 256 | mCleanListener = listener; |
| 257 | return false; |
| 258 | } else { |
| 259 | mCleanListener = null; |
| 260 | return true; |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | public void dump(PrintWriter pw) { |
| 265 | pw.println(); |
| 266 | pw.println("Display Power State:"); |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 267 | pw.println(" mScreenState=" + Display.stateToString(mScreenState)); |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 268 | pw.println(" mScreenBrightness=" + mScreenBrightness); |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 269 | pw.println(" mScreenReady=" + mScreenReady); |
| 270 | pw.println(" mScreenUpdatePending=" + mScreenUpdatePending); |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 271 | pw.println(" mColorFadePrepared=" + mColorFadePrepared); |
| 272 | pw.println(" mColorFadeLevel=" + mColorFadeLevel); |
| 273 | pw.println(" mColorFadeReady=" + mColorFadeReady); |
| 274 | pw.println(" mColorFadeDrawPending=" + mColorFadeDrawPending); |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 275 | |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 276 | mPhotonicModulator.dump(pw); |
Narayan Kamath | 3881998 | 2017-07-06 18:15:30 +0100 | [diff] [blame] | 277 | if (mColorFade != null) mColorFade.dump(pw); |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 278 | } |
| 279 | |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 280 | private void scheduleScreenUpdate() { |
| 281 | if (!mScreenUpdatePending) { |
| 282 | mScreenUpdatePending = true; |
| 283 | postScreenUpdateThreadSafe(); |
| 284 | } |
| 285 | } |
| 286 | |
| 287 | private void postScreenUpdateThreadSafe() { |
| 288 | mHandler.removeCallbacks(mScreenUpdateRunnable); |
| 289 | mHandler.post(mScreenUpdateRunnable); |
| 290 | } |
| 291 | |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 292 | private void scheduleColorFadeDraw() { |
| 293 | if (!mColorFadeDrawPending) { |
| 294 | mColorFadeDrawPending = true; |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 295 | mChoreographer.postCallback(Choreographer.CALLBACK_TRAVERSAL, |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 296 | mColorFadeDrawRunnable, null); |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 297 | } |
| 298 | } |
| 299 | |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 300 | private void invokeCleanListenerIfNeeded() { |
| 301 | final Runnable listener = mCleanListener; |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 302 | if (listener != null && mScreenReady && mColorFadeReady) { |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 303 | mCleanListener = null; |
| 304 | listener.run(); |
| 305 | } |
| 306 | } |
| 307 | |
| 308 | private final Runnable mScreenUpdateRunnable = new Runnable() { |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 309 | @Override |
| 310 | public void run() { |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 311 | mScreenUpdatePending = false; |
| 312 | |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 313 | float brightnessState = mScreenState != Display.STATE_OFF |
| 314 | && mColorFadeLevel > 0f ? mScreenBrightness : PowerManager.BRIGHTNESS_OFF_FLOAT; |
| 315 | if (mPhotonicModulator.setState(mScreenState, brightnessState)) { |
Jeff Brown | 2d8a390 | 2014-03-11 23:02:35 -0700 | [diff] [blame] | 316 | if (DEBUG) { |
| 317 | Slog.d(TAG, "Screen ready"); |
| 318 | } |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 319 | mScreenReady = true; |
| 320 | invokeCleanListenerIfNeeded(); |
Jeff Brown | 2d8a390 | 2014-03-11 23:02:35 -0700 | [diff] [blame] | 321 | } else { |
| 322 | if (DEBUG) { |
| 323 | Slog.d(TAG, "Screen not ready"); |
| 324 | } |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 325 | } |
| 326 | } |
| 327 | }; |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 328 | |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 329 | private final Runnable mColorFadeDrawRunnable = new Runnable() { |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 330 | @Override |
| 331 | public void run() { |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 332 | mColorFadeDrawPending = false; |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 333 | |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 334 | if (mColorFadePrepared) { |
| 335 | mColorFade.draw(mColorFadeLevel); |
Michael Wright | c3e6af8 | 2017-07-25 22:31:03 +0100 | [diff] [blame] | 336 | Trace.traceCounter(Trace.TRACE_TAG_POWER, |
Michael Wright | 63a4006 | 2017-07-26 01:10:59 +0100 | [diff] [blame] | 337 | COUNTER_COLOR_FADE, Math.round(mColorFadeLevel * 100)); |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 338 | } |
| 339 | |
Michael Lentine | 0839adb | 2014-07-29 18:47:56 -0700 | [diff] [blame] | 340 | mColorFadeReady = true; |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 341 | invokeCleanListenerIfNeeded(); |
| 342 | } |
| 343 | }; |
| 344 | |
| 345 | /** |
| 346 | * Updates the state of the screen and backlight asynchronously on a separate thread. |
| 347 | */ |
Jeff Brown | 0a43477 | 2014-09-30 14:42:27 -0700 | [diff] [blame] | 348 | private final class PhotonicModulator extends Thread { |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 349 | private static final int INITIAL_SCREEN_STATE = Display.STATE_OFF; // unknown, assume off |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 350 | private static final float INITIAL_BACKLIGHT_FLOAT = PowerManager.BRIGHTNESS_INVALID_FLOAT; |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 351 | |
| 352 | private final Object mLock = new Object(); |
| 353 | |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 354 | private int mPendingState = INITIAL_SCREEN_STATE; |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 355 | private float mPendingBacklight = INITIAL_BACKLIGHT_FLOAT; |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 356 | private int mActualState = INITIAL_SCREEN_STATE; |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 357 | private float mActualBacklight = INITIAL_BACKLIGHT_FLOAT; |
Jorim Jaggi | 6e90ea0 | 2015-08-24 13:54:19 -0700 | [diff] [blame] | 358 | private boolean mStateChangeInProgress; |
| 359 | private boolean mBacklightChangeInProgress; |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 360 | |
Jeff Brown | faec22c8 | 2015-04-10 12:58:52 -0700 | [diff] [blame] | 361 | public PhotonicModulator() { |
| 362 | super("PhotonicModulator"); |
| 363 | } |
| 364 | |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 365 | public boolean setState(int state, float brightnessState) { |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 366 | synchronized (mLock) { |
Jorim Jaggi | 6e90ea0 | 2015-08-24 13:54:19 -0700 | [diff] [blame] | 367 | boolean stateChanged = state != mPendingState; |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 368 | boolean backlightChanged = !BrightnessSynchronizer.floatEquals( |
| 369 | brightnessState, mPendingBacklight); |
Jorim Jaggi | 6e90ea0 | 2015-08-24 13:54:19 -0700 | [diff] [blame] | 370 | if (stateChanged || backlightChanged) { |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 371 | if (DEBUG) { |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 372 | Slog.d(TAG, "Requesting new screen state: state=" |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 373 | + Display.stateToString(state) + ", backlight=" + brightnessState); |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 374 | } |
| 375 | |
Jeff Brown | 037c33e | 2014-04-09 00:31:55 -0700 | [diff] [blame] | 376 | mPendingState = state; |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 377 | mPendingBacklight = brightnessState; |
Jorim Jaggi | 6e90ea0 | 2015-08-24 13:54:19 -0700 | [diff] [blame] | 378 | boolean changeInProgress = mStateChangeInProgress || mBacklightChangeInProgress; |
Michael Wright | 640666f | 2017-06-06 22:01:20 +0100 | [diff] [blame] | 379 | mStateChangeInProgress = stateChanged || mStateChangeInProgress; |
| 380 | mBacklightChangeInProgress = backlightChanged || mBacklightChangeInProgress; |
Jorim Jaggi | 6e90ea0 | 2015-08-24 13:54:19 -0700 | [diff] [blame] | 381 | |
| 382 | if (!changeInProgress) { |
Jeff Brown | 0a43477 | 2014-09-30 14:42:27 -0700 | [diff] [blame] | 383 | mLock.notifyAll(); |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 384 | } |
| 385 | } |
Jorim Jaggi | 6e90ea0 | 2015-08-24 13:54:19 -0700 | [diff] [blame] | 386 | return !mStateChangeInProgress; |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 387 | } |
| 388 | } |
| 389 | |
| 390 | public void dump(PrintWriter pw) { |
Jeff Brown | 0a43477 | 2014-09-30 14:42:27 -0700 | [diff] [blame] | 391 | synchronized (mLock) { |
| 392 | pw.println(); |
| 393 | pw.println("Photonic Modulator State:"); |
| 394 | pw.println(" mPendingState=" + Display.stateToString(mPendingState)); |
| 395 | pw.println(" mPendingBacklight=" + mPendingBacklight); |
| 396 | pw.println(" mActualState=" + Display.stateToString(mActualState)); |
| 397 | pw.println(" mActualBacklight=" + mActualBacklight); |
Jorim Jaggi | 6e90ea0 | 2015-08-24 13:54:19 -0700 | [diff] [blame] | 398 | pw.println(" mStateChangeInProgress=" + mStateChangeInProgress); |
| 399 | pw.println(" mBacklightChangeInProgress=" + mBacklightChangeInProgress); |
Jeff Brown | 0a43477 | 2014-09-30 14:42:27 -0700 | [diff] [blame] | 400 | } |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 401 | } |
| 402 | |
Jeff Brown | 0a43477 | 2014-09-30 14:42:27 -0700 | [diff] [blame] | 403 | @Override |
| 404 | public void run() { |
| 405 | for (;;) { |
| 406 | // Get pending change. |
| 407 | final int state; |
| 408 | final boolean stateChanged; |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 409 | final float brightnessState; |
Jeff Brown | 0a43477 | 2014-09-30 14:42:27 -0700 | [diff] [blame] | 410 | final boolean backlightChanged; |
| 411 | synchronized (mLock) { |
| 412 | state = mPendingState; |
| 413 | stateChanged = (state != mActualState); |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 414 | brightnessState = mPendingBacklight; |
| 415 | backlightChanged = !BrightnessSynchronizer.floatEquals( |
| 416 | brightnessState, mActualBacklight); |
Jorim Jaggi | 6e90ea0 | 2015-08-24 13:54:19 -0700 | [diff] [blame] | 417 | if (!stateChanged) { |
| 418 | // State changed applied, notify outer class. |
Jeff Brown | 0a43477 | 2014-09-30 14:42:27 -0700 | [diff] [blame] | 419 | postScreenUpdateThreadSafe(); |
Jorim Jaggi | 6e90ea0 | 2015-08-24 13:54:19 -0700 | [diff] [blame] | 420 | mStateChangeInProgress = false; |
| 421 | } |
| 422 | if (!backlightChanged) { |
| 423 | mBacklightChangeInProgress = false; |
| 424 | } |
| 425 | if (!stateChanged && !backlightChanged) { |
Jeff Brown | 0a43477 | 2014-09-30 14:42:27 -0700 | [diff] [blame] | 426 | try { |
| 427 | mLock.wait(); |
| 428 | } catch (InterruptedException ex) { } |
| 429 | continue; |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 430 | } |
Jeff Brown | 0a43477 | 2014-09-30 14:42:27 -0700 | [diff] [blame] | 431 | mActualState = state; |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 432 | mActualBacklight = brightnessState; |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 433 | } |
| 434 | |
Jeff Brown | 0a43477 | 2014-09-30 14:42:27 -0700 | [diff] [blame] | 435 | // Apply pending change. |
| 436 | if (DEBUG) { |
| 437 | Slog.d(TAG, "Updating screen state: state=" |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 438 | + Display.stateToString(state) + ", backlight=" + brightnessState); |
Jeff Brown | 0a43477 | 2014-09-30 14:42:27 -0700 | [diff] [blame] | 439 | } |
Fiona Campbell | d4eb295 | 2019-11-04 17:19:56 +0000 | [diff] [blame] | 440 | mBlanker.requestDisplayState(state, brightnessState); |
Jeff Brown | 0a43477 | 2014-09-30 14:42:27 -0700 | [diff] [blame] | 441 | } |
| 442 | } |
Jeff Brown | 32dafe2 | 2012-10-19 17:04:30 -0700 | [diff] [blame] | 443 | } |
Jeff Brown | 9630704 | 2012-07-27 15:51:34 -0700 | [diff] [blame] | 444 | } |