Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 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.annotation.NonNull; |
| 20 | import android.annotation.Nullable; |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 21 | import android.content.BroadcastReceiver; |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 22 | import android.content.ContentResolver; |
| 23 | import android.content.Context; |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 24 | import android.content.Intent; |
| 25 | import android.content.IntentFilter; |
| 26 | import android.content.res.Resources; |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 27 | import android.database.ContentObserver; |
| 28 | import android.hardware.display.DisplayManager; |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 29 | import android.hardware.Sensor; |
| 30 | import android.hardware.SensorEvent; |
| 31 | import android.hardware.SensorEventListener; |
| 32 | import android.hardware.SensorManager; |
| 33 | |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 34 | import android.net.Uri; |
| 35 | import android.os.Handler; |
| 36 | import android.os.Looper; |
| 37 | import android.os.Message; |
| 38 | import android.os.UserHandle; |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 39 | import android.os.PowerManager; |
| 40 | import android.os.SystemClock; |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 41 | import android.provider.DeviceConfig; |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 42 | import android.provider.Settings; |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 43 | import android.text.TextUtils; |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 44 | import android.util.Pair; |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 45 | import android.util.Slog; |
| 46 | import android.util.SparseArray; |
| 47 | import android.view.Display; |
| 48 | import android.view.DisplayInfo; |
| 49 | |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 50 | import com.android.internal.os.BackgroundThread; |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 51 | import com.android.internal.R; |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 52 | import com.android.server.display.whitebalance.DisplayWhiteBalanceFactory; |
| 53 | import com.android.server.display.whitebalance.AmbientFilter; |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 54 | |
| 55 | import java.io.PrintWriter; |
| 56 | import java.util.ArrayList; |
| 57 | import java.util.Arrays; |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 58 | import java.util.List; |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 59 | import java.util.Objects; |
| 60 | |
| 61 | /** |
| 62 | * The DisplayModeDirector is responsible for determining what modes are allowed to be |
| 63 | * automatically picked by the system based on system-wide and display-specific configuration. |
| 64 | */ |
| 65 | public class DisplayModeDirector { |
| 66 | private static final String TAG = "DisplayModeDirector"; |
| 67 | private static final boolean DEBUG = false; |
| 68 | |
| 69 | private static final int MSG_ALLOWED_MODES_CHANGED = 1; |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 70 | private static final int MSG_BRIGHTNESS_THRESHOLDS_CHANGED = 2; |
| 71 | private static final int MSG_DEFAULT_PEAK_REFRESH_RATE_CHANGED = 3; |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 72 | |
| 73 | // Special ID used to indicate that given vote is to be applied globally, rather than to a |
| 74 | // specific display. |
| 75 | private static final int GLOBAL_ID = -1; |
| 76 | |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 77 | // The tolerance within which we consider something approximately equals. |
| 78 | private static final float EPSILON = 0.001f; |
| 79 | |
| 80 | private final Object mLock = new Object(); |
| 81 | private final Context mContext; |
| 82 | |
| 83 | private final DisplayModeDirectorHandler mHandler; |
| 84 | |
| 85 | // A map from the display ID to the collection of votes and their priority. The latter takes |
| 86 | // the form of another map from the priority to the vote itself so that each priority is |
| 87 | // guaranteed to have exactly one vote, which is also easily and efficiently replaceable. |
| 88 | private final SparseArray<SparseArray<Vote>> mVotesByDisplay; |
| 89 | // A map from the display ID to the supported modes on that display. |
| 90 | private final SparseArray<Display.Mode[]> mSupportedModesByDisplay; |
| 91 | // A map from the display ID to the default mode of that display. |
| 92 | private final SparseArray<Display.Mode> mDefaultModeByDisplay; |
| 93 | |
| 94 | private final AppRequestObserver mAppRequestObserver; |
| 95 | private final SettingsObserver mSettingsObserver; |
| 96 | private final DisplayObserver mDisplayObserver; |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 97 | private final BrightnessObserver mBrightnessObserver; |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 98 | |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 99 | private final DeviceConfigDisplaySettings mDeviceConfigDisplaySettings; |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 100 | private Listener mListener; |
| 101 | |
| 102 | public DisplayModeDirector(@NonNull Context context, @NonNull Handler handler) { |
| 103 | mContext = context; |
| 104 | mHandler = new DisplayModeDirectorHandler(handler.getLooper()); |
| 105 | mVotesByDisplay = new SparseArray<>(); |
| 106 | mSupportedModesByDisplay = new SparseArray<>(); |
| 107 | mDefaultModeByDisplay = new SparseArray<>(); |
| 108 | mAppRequestObserver = new AppRequestObserver(); |
| 109 | mSettingsObserver = new SettingsObserver(context, handler); |
| 110 | mDisplayObserver = new DisplayObserver(context, handler); |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 111 | mBrightnessObserver = new BrightnessObserver(context, handler); |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 112 | mDeviceConfigDisplaySettings = new DeviceConfigDisplaySettings(); |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 113 | } |
| 114 | |
| 115 | /** |
| 116 | * Tells the DisplayModeDirector to update allowed votes and begin observing relevant system |
| 117 | * state. |
| 118 | * |
| 119 | * This has to be deferred because the object may be constructed before the rest of the system |
| 120 | * is ready. |
| 121 | */ |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 122 | public void start(SensorManager sensorManager) { |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 123 | mSettingsObserver.observe(); |
| 124 | mDisplayObserver.observe(); |
| 125 | mSettingsObserver.observe(); |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 126 | mBrightnessObserver.observe(sensorManager); |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 127 | synchronized (mLock) { |
| 128 | // We may have a listener already registered before the call to start, so go ahead and |
| 129 | // notify them to pick up our newly initialized state. |
| 130 | notifyAllowedModesChangedLocked(); |
| 131 | } |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 132 | |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 133 | } |
| 134 | |
| 135 | /** |
| 136 | * Calculates the modes the system is allowed to freely switch between based on global and |
| 137 | * display-specific constraints. |
| 138 | * |
| 139 | * @param displayId The display to query for. |
| 140 | * @return The IDs of the modes the system is allowed to freely switch between. |
| 141 | */ |
| 142 | @NonNull |
| 143 | public int[] getAllowedModes(int displayId) { |
| 144 | synchronized (mLock) { |
| 145 | SparseArray<Vote> votes = getVotesLocked(displayId); |
| 146 | Display.Mode[] modes = mSupportedModesByDisplay.get(displayId); |
| 147 | Display.Mode defaultMode = mDefaultModeByDisplay.get(displayId); |
| 148 | if (modes == null || defaultMode == null) { |
| 149 | Slog.e(TAG, "Asked about unknown display, returning empty allowed set! (id=" |
| 150 | + displayId + ")"); |
| 151 | return new int[0]; |
| 152 | } |
| 153 | return getAllowedModesLocked(votes, modes, defaultMode); |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | @NonNull |
| 158 | private SparseArray<Vote> getVotesLocked(int displayId) { |
| 159 | SparseArray<Vote> displayVotes = mVotesByDisplay.get(displayId); |
| 160 | final SparseArray<Vote> votes; |
| 161 | if (displayVotes != null) { |
| 162 | votes = displayVotes.clone(); |
| 163 | } else { |
| 164 | votes = new SparseArray<>(); |
| 165 | } |
| 166 | |
| 167 | SparseArray<Vote> globalVotes = mVotesByDisplay.get(GLOBAL_ID); |
| 168 | if (globalVotes != null) { |
| 169 | for (int i = 0; i < globalVotes.size(); i++) { |
| 170 | int priority = globalVotes.keyAt(i); |
| 171 | if (votes.indexOfKey(priority) < 0) { |
| 172 | votes.put(priority, globalVotes.valueAt(i)); |
| 173 | } |
| 174 | } |
| 175 | } |
| 176 | return votes; |
| 177 | } |
| 178 | |
| 179 | @NonNull |
| 180 | private int[] getAllowedModesLocked(@NonNull SparseArray<Vote> votes, |
| 181 | @NonNull Display.Mode[] modes, @NonNull Display.Mode defaultMode) { |
| 182 | int lowestConsideredPriority = Vote.MIN_PRIORITY; |
| 183 | while (lowestConsideredPriority <= Vote.MAX_PRIORITY) { |
| 184 | float minRefreshRate = 0f; |
| 185 | float maxRefreshRate = Float.POSITIVE_INFINITY; |
| 186 | int height = Vote.INVALID_SIZE; |
| 187 | int width = Vote.INVALID_SIZE; |
| 188 | |
| 189 | for (int priority = Vote.MAX_PRIORITY; |
| 190 | priority >= lowestConsideredPriority; |
| 191 | priority--) { |
| 192 | Vote vote = votes.get(priority); |
| 193 | if (vote == null) { |
| 194 | continue; |
| 195 | } |
| 196 | // For refresh rates, just use the tightest bounds of all the votes |
| 197 | minRefreshRate = Math.max(minRefreshRate, vote.minRefreshRate); |
| 198 | maxRefreshRate = Math.min(maxRefreshRate, vote.maxRefreshRate); |
| 199 | // For display size, use only the first vote we come across (i.e. the highest |
| 200 | // priority vote that includes the width / height). |
| 201 | if (height == Vote.INVALID_SIZE && width == Vote.INVALID_SIZE |
| 202 | && vote.height > 0 && vote.width > 0) { |
| 203 | width = vote.width; |
| 204 | height = vote.height; |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | // If we don't have anything specifying the width / height of the display, just use the |
| 209 | // default width and height. We don't want these switching out from underneath us since |
| 210 | // it's a pretty disruptive behavior. |
| 211 | if (height == Vote.INVALID_SIZE || width == Vote.INVALID_SIZE) { |
| 212 | width = defaultMode.getPhysicalWidth(); |
| 213 | height = defaultMode.getPhysicalHeight(); |
| 214 | } |
| 215 | |
| 216 | int[] availableModes = |
| 217 | filterModes(modes, width, height, minRefreshRate, maxRefreshRate); |
| 218 | if (availableModes.length > 0) { |
| 219 | if (DEBUG) { |
| 220 | Slog.w(TAG, "Found available modes=" + Arrays.toString(availableModes) |
| 221 | + " with lowest priority considered " |
| 222 | + Vote.priorityToString(lowestConsideredPriority) |
| 223 | + " and constraints: " |
| 224 | + "width=" + width |
| 225 | + ", height=" + height |
| 226 | + ", minRefreshRate=" + minRefreshRate |
| 227 | + ", maxRefreshRate=" + maxRefreshRate); |
| 228 | } |
| 229 | return availableModes; |
| 230 | } |
| 231 | |
| 232 | if (DEBUG) { |
| 233 | Slog.w(TAG, "Couldn't find available modes with lowest priority set to " |
| 234 | + Vote.priorityToString(lowestConsideredPriority) |
| 235 | + " and with the following constraints: " |
| 236 | + "width=" + width |
| 237 | + ", height=" + height |
| 238 | + ", minRefreshRate=" + minRefreshRate |
| 239 | + ", maxRefreshRate=" + maxRefreshRate); |
| 240 | } |
| 241 | // If we haven't found anything with the current set of votes, drop the current lowest |
| 242 | // priority vote. |
| 243 | lowestConsideredPriority++; |
| 244 | } |
| 245 | |
| 246 | // If we still haven't found anything that matches our current set of votes, just fall back |
| 247 | // to the default mode. |
| 248 | return new int[] { defaultMode.getModeId() }; |
| 249 | } |
| 250 | |
| 251 | private int[] filterModes(Display.Mode[] supportedModes, |
| 252 | int width, int height, float minRefreshRate, float maxRefreshRate) { |
| 253 | ArrayList<Display.Mode> availableModes = new ArrayList<>(); |
| 254 | for (Display.Mode mode : supportedModes) { |
| 255 | if (mode.getPhysicalWidth() != width || mode.getPhysicalHeight() != height) { |
| 256 | if (DEBUG) { |
| 257 | Slog.w(TAG, "Discarding mode " + mode.getModeId() + ", wrong size" |
| 258 | + ": desiredWidth=" + width |
| 259 | + ": desiredHeight=" + height |
| 260 | + ": actualWidth=" + mode.getPhysicalWidth() |
| 261 | + ": actualHeight=" + mode.getPhysicalHeight()); |
| 262 | } |
| 263 | continue; |
| 264 | } |
| 265 | final float refreshRate = mode.getRefreshRate(); |
| 266 | // Some refresh rates are calculated based on frame timings, so they aren't *exactly* |
| 267 | // equal to expected refresh rate. Given that, we apply a bit of tolerance to this |
| 268 | // comparison. |
| 269 | if (refreshRate < (minRefreshRate - EPSILON) |
| 270 | || refreshRate > (maxRefreshRate + EPSILON)) { |
| 271 | if (DEBUG) { |
| 272 | Slog.w(TAG, "Discarding mode " + mode.getModeId() |
| 273 | + ", outside refresh rate bounds" |
| 274 | + ": minRefreshRate=" + minRefreshRate |
| 275 | + ", maxRefreshRate=" + maxRefreshRate |
| 276 | + ", modeRefreshRate=" + refreshRate); |
| 277 | } |
| 278 | continue; |
| 279 | } |
| 280 | availableModes.add(mode); |
| 281 | } |
| 282 | final int size = availableModes.size(); |
| 283 | int[] availableModeIds = new int[size]; |
| 284 | for (int i = 0; i < size; i++) { |
| 285 | availableModeIds[i] = availableModes.get(i).getModeId(); |
| 286 | } |
| 287 | return availableModeIds; |
| 288 | } |
| 289 | |
| 290 | /** |
| 291 | * Gets the observer responsible for application display mode requests. |
| 292 | */ |
| 293 | @NonNull |
| 294 | public AppRequestObserver getAppRequestObserver() { |
| 295 | // We don't need to lock here because mAppRequestObserver is a final field, which is |
| 296 | // guaranteed to be visible on all threads after construction. |
| 297 | return mAppRequestObserver; |
| 298 | } |
| 299 | |
| 300 | /** |
| 301 | * Sets the listener for changes to allowed display modes. |
| 302 | */ |
| 303 | public void setListener(@Nullable Listener listener) { |
| 304 | synchronized (mLock) { |
| 305 | mListener = listener; |
| 306 | } |
| 307 | } |
| 308 | |
| 309 | /** |
| 310 | * Print the object's state and debug information into the given stream. |
| 311 | * |
| 312 | * @param pw The stream to dump information to. |
| 313 | */ |
| 314 | public void dump(PrintWriter pw) { |
| 315 | pw.println("DisplayModeDirector"); |
| 316 | synchronized (mLock) { |
| 317 | pw.println(" mSupportedModesByDisplay:"); |
| 318 | for (int i = 0; i < mSupportedModesByDisplay.size(); i++) { |
| 319 | final int id = mSupportedModesByDisplay.keyAt(i); |
| 320 | final Display.Mode[] modes = mSupportedModesByDisplay.valueAt(i); |
| 321 | pw.println(" " + id + " -> " + Arrays.toString(modes)); |
| 322 | } |
| 323 | pw.println(" mDefaultModeByDisplay:"); |
| 324 | for (int i = 0; i < mDefaultModeByDisplay.size(); i++) { |
| 325 | final int id = mDefaultModeByDisplay.keyAt(i); |
| 326 | final Display.Mode mode = mDefaultModeByDisplay.valueAt(i); |
| 327 | pw.println(" " + id + " -> " + mode); |
| 328 | } |
| 329 | pw.println(" mVotesByDisplay:"); |
| 330 | for (int i = 0; i < mVotesByDisplay.size(); i++) { |
| 331 | pw.println(" " + mVotesByDisplay.keyAt(i) + ":"); |
| 332 | SparseArray<Vote> votes = mVotesByDisplay.valueAt(i); |
| 333 | for (int p = Vote.MAX_PRIORITY; p >= Vote.MIN_PRIORITY; p--) { |
| 334 | Vote vote = votes.get(p); |
| 335 | if (vote == null) { |
| 336 | continue; |
| 337 | } |
| 338 | pw.println(" " + Vote.priorityToString(p) + " -> " + vote); |
| 339 | } |
| 340 | } |
| 341 | mSettingsObserver.dumpLocked(pw); |
| 342 | mAppRequestObserver.dumpLocked(pw); |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 343 | mBrightnessObserver.dumpLocked(pw); |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 344 | } |
| 345 | } |
| 346 | |
| 347 | private void updateVoteLocked(int priority, Vote vote) { |
| 348 | updateVoteLocked(GLOBAL_ID, priority, vote); |
| 349 | } |
| 350 | |
| 351 | private void updateVoteLocked(int displayId, int priority, Vote vote) { |
| 352 | if (DEBUG) { |
| 353 | Slog.i(TAG, "updateVoteLocked(displayId=" + displayId |
| 354 | + ", priority=" + Vote.priorityToString(priority) |
| 355 | + ", vote=" + vote + ")"); |
| 356 | } |
| 357 | if (priority < Vote.MIN_PRIORITY || priority > Vote.MAX_PRIORITY) { |
| 358 | Slog.w(TAG, "Received a vote with an invalid priority, ignoring:" |
| 359 | + " priority=" + Vote.priorityToString(priority) |
| 360 | + ", vote=" + vote, new Throwable()); |
| 361 | return; |
| 362 | } |
| 363 | final SparseArray<Vote> votes = getOrCreateVotesByDisplay(displayId); |
| 364 | |
| 365 | Vote currentVote = votes.get(priority); |
| 366 | if (vote != null) { |
| 367 | votes.put(priority, vote); |
| 368 | } else { |
| 369 | votes.remove(priority); |
| 370 | } |
| 371 | |
| 372 | if (votes.size() == 0) { |
| 373 | if (DEBUG) { |
| 374 | Slog.i(TAG, "No votes left for display " + displayId + ", removing."); |
| 375 | } |
| 376 | mVotesByDisplay.remove(displayId); |
| 377 | } |
| 378 | |
| 379 | notifyAllowedModesChangedLocked(); |
| 380 | } |
| 381 | |
| 382 | private void notifyAllowedModesChangedLocked() { |
| 383 | if (mListener != null && !mHandler.hasMessages(MSG_ALLOWED_MODES_CHANGED)) { |
| 384 | // We need to post this to a handler to avoid calling out while holding the lock |
| 385 | // since we know there are things that both listen for changes as well as provide |
| 386 | // information. If we did call out while holding the lock, then there's no guaranteed |
| 387 | // lock order and we run the real of risk deadlock. |
| 388 | Message msg = mHandler.obtainMessage(MSG_ALLOWED_MODES_CHANGED, mListener); |
| 389 | msg.sendToTarget(); |
| 390 | } |
| 391 | } |
| 392 | |
| 393 | private SparseArray<Vote> getOrCreateVotesByDisplay(int displayId) { |
| 394 | int index = mVotesByDisplay.indexOfKey(displayId); |
| 395 | if (mVotesByDisplay.indexOfKey(displayId) >= 0) { |
| 396 | return mVotesByDisplay.get(displayId); |
| 397 | } else { |
| 398 | SparseArray<Vote> votes = new SparseArray<>(); |
| 399 | mVotesByDisplay.put(displayId, votes); |
| 400 | return votes; |
| 401 | } |
| 402 | } |
| 403 | |
| 404 | /** |
| 405 | * Listens for changes to display mode coordination. |
| 406 | */ |
| 407 | public interface Listener { |
| 408 | /** |
| 409 | * Called when the allowed display modes may have changed. |
| 410 | */ |
| 411 | void onAllowedDisplayModesChanged(); |
| 412 | } |
| 413 | |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 414 | private final class DisplayModeDirectorHandler extends Handler { |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 415 | DisplayModeDirectorHandler(Looper looper) { |
| 416 | super(looper, null, true /*async*/); |
| 417 | } |
| 418 | |
| 419 | @Override |
| 420 | public void handleMessage(Message msg) { |
| 421 | switch (msg.what) { |
| 422 | case MSG_ALLOWED_MODES_CHANGED: |
| 423 | Listener listener = (Listener) msg.obj; |
| 424 | listener.onAllowedDisplayModesChanged(); |
| 425 | break; |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 426 | |
| 427 | case MSG_BRIGHTNESS_THRESHOLDS_CHANGED: |
| 428 | Pair<int[], int[]> thresholds = (Pair<int[], int[]>) msg.obj; |
| 429 | |
| 430 | if (thresholds != null) { |
| 431 | mBrightnessObserver.onDeviceConfigThresholdsChanged( |
| 432 | thresholds.first, thresholds.second); |
| 433 | } else { |
| 434 | mBrightnessObserver.onDeviceConfigThresholdsChanged(null, null); |
| 435 | } |
| 436 | break; |
| 437 | |
| 438 | case MSG_DEFAULT_PEAK_REFRESH_RATE_CHANGED: |
| 439 | Float defaultPeakRefreshRate = (Float) msg.obj; |
| 440 | mSettingsObserver.onDeviceConfigDefaultPeakRefreshRateChanged( |
| 441 | defaultPeakRefreshRate); |
| 442 | break; |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 443 | } |
| 444 | } |
| 445 | } |
| 446 | |
| 447 | private static final class Vote { |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 448 | // We split the app request into two priorities in case we can satisfy one desire without |
| 449 | // the other. |
Ady Abraham | ce743b7 | 2019-06-11 19:16:12 -0700 | [diff] [blame] | 450 | public static final int PRIORITY_APP_REQUEST_REFRESH_RATE = 0; |
| 451 | public static final int PRIORITY_APP_REQUEST_SIZE = 1; |
| 452 | public static final int PRIORITY_USER_SETTING_REFRESH_RATE = 2; |
Long Ling | 741bf5f | 2019-04-15 14:08:49 -0700 | [diff] [blame] | 453 | public static final int PRIORITY_LOW_BRIGHTNESS = 3; |
| 454 | public static final int PRIORITY_LOW_POWER_MODE = 4; |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 455 | |
| 456 | // Whenever a new priority is added, remember to update MIN_PRIORITY and/or MAX_PRIORITY as |
| 457 | // appropriate, as well as priorityToString. |
| 458 | |
Ady Abraham | ce743b7 | 2019-06-11 19:16:12 -0700 | [diff] [blame] | 459 | public static final int MIN_PRIORITY = PRIORITY_APP_REQUEST_REFRESH_RATE; |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 460 | public static final int MAX_PRIORITY = PRIORITY_LOW_POWER_MODE; |
| 461 | |
| 462 | /** |
| 463 | * A value signifying an invalid width or height in a vote. |
| 464 | */ |
| 465 | public static final int INVALID_SIZE = -1; |
| 466 | |
| 467 | /** |
| 468 | * The requested width of the display in pixels, or INVALID_SIZE; |
| 469 | */ |
| 470 | public final int width; |
| 471 | /** |
| 472 | * The requested height of the display in pixels, or INVALID_SIZE; |
| 473 | */ |
| 474 | public final int height; |
| 475 | |
| 476 | /** |
| 477 | * The lowest desired refresh rate. |
| 478 | */ |
| 479 | public final float minRefreshRate; |
| 480 | /** |
| 481 | * The highest desired refresh rate. |
| 482 | */ |
| 483 | public final float maxRefreshRate; |
| 484 | |
| 485 | public static Vote forRefreshRates(float minRefreshRate, float maxRefreshRate) { |
| 486 | return new Vote(INVALID_SIZE, INVALID_SIZE, minRefreshRate, maxRefreshRate); |
| 487 | } |
| 488 | |
| 489 | public static Vote forSize(int width, int height) { |
| 490 | return new Vote(width, height, 0f, Float.POSITIVE_INFINITY); |
| 491 | } |
| 492 | |
| 493 | private Vote(int width, int height, |
| 494 | float minRefreshRate, float maxRefreshRate) { |
| 495 | this.width = width; |
| 496 | this.height = height; |
| 497 | this.minRefreshRate = minRefreshRate; |
| 498 | this.maxRefreshRate = maxRefreshRate; |
| 499 | } |
| 500 | |
| 501 | public static String priorityToString(int priority) { |
| 502 | switch (priority) { |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 503 | case PRIORITY_APP_REQUEST_REFRESH_RATE: |
| 504 | return "PRIORITY_APP_REQUEST_REFRESH_RATE"; |
| 505 | case PRIORITY_APP_REQUEST_SIZE: |
| 506 | return "PRIORITY_APP_REQUEST_SIZE"; |
Ady Abraham | ce743b7 | 2019-06-11 19:16:12 -0700 | [diff] [blame] | 507 | case PRIORITY_USER_SETTING_REFRESH_RATE: |
| 508 | return "PRIORITY_USER_SETTING_REFRESH_RATE"; |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 509 | case PRIORITY_LOW_POWER_MODE: |
| 510 | return "PRIORITY_LOW_POWER_MODE"; |
| 511 | default: |
| 512 | return Integer.toString(priority); |
| 513 | } |
| 514 | } |
| 515 | |
| 516 | @Override |
| 517 | public String toString() { |
| 518 | return "Vote{" |
| 519 | + "width=" + width |
| 520 | + ", height=" + height |
| 521 | + ", minRefreshRate=" + minRefreshRate |
| 522 | + ", maxRefreshRate=" + maxRefreshRate |
| 523 | + "}"; |
| 524 | } |
| 525 | } |
| 526 | |
| 527 | private final class SettingsObserver extends ContentObserver { |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 528 | private final Uri mPeakRefreshRateSetting = |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 529 | Settings.System.getUriFor(Settings.System.PEAK_REFRESH_RATE); |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 530 | private final Uri mMinRefreshRateSetting = |
| 531 | Settings.System.getUriFor(Settings.System.MIN_REFRESH_RATE); |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 532 | private final Uri mLowPowerModeSetting = |
| 533 | Settings.Global.getUriFor(Settings.Global.LOW_POWER_MODE); |
| 534 | |
| 535 | private final Context mContext; |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 536 | private float mDefaultPeakRefreshRate; |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 537 | |
| 538 | SettingsObserver(@NonNull Context context, @NonNull Handler handler) { |
| 539 | super(handler); |
| 540 | mContext = context; |
| 541 | mDefaultPeakRefreshRate = (float) context.getResources().getInteger( |
| 542 | R.integer.config_defaultPeakRefreshRate); |
| 543 | } |
| 544 | |
| 545 | public void observe() { |
| 546 | final ContentResolver cr = mContext.getContentResolver(); |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 547 | cr.registerContentObserver(mPeakRefreshRateSetting, false /*notifyDescendants*/, this, |
| 548 | UserHandle.USER_SYSTEM); |
| 549 | cr.registerContentObserver(mMinRefreshRateSetting, false /*notifyDescendants*/, this, |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 550 | UserHandle.USER_SYSTEM); |
| 551 | cr.registerContentObserver(mLowPowerModeSetting, false /*notifyDescendants*/, this, |
| 552 | UserHandle.USER_SYSTEM); |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 553 | |
| 554 | Float deviceConfigDefaultPeakRefresh = |
| 555 | mDeviceConfigDisplaySettings.getDefaultPeakRefreshRate(); |
| 556 | if (deviceConfigDefaultPeakRefresh != null) { |
| 557 | mDefaultPeakRefreshRate = deviceConfigDefaultPeakRefresh; |
| 558 | } |
| 559 | |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 560 | synchronized (mLock) { |
| 561 | updateRefreshRateSettingLocked(); |
| 562 | updateLowPowerModeSettingLocked(); |
| 563 | } |
| 564 | } |
| 565 | |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 566 | public void onDeviceConfigDefaultPeakRefreshRateChanged(Float defaultPeakRefreshRate) { |
| 567 | if (defaultPeakRefreshRate == null) { |
| 568 | defaultPeakRefreshRate = (float) mContext.getResources().getInteger( |
| 569 | R.integer.config_defaultPeakRefreshRate); |
| 570 | } |
| 571 | |
| 572 | if (mDefaultPeakRefreshRate != defaultPeakRefreshRate) { |
| 573 | synchronized (mLock) { |
| 574 | mDefaultPeakRefreshRate = defaultPeakRefreshRate; |
| 575 | updateRefreshRateSettingLocked(); |
| 576 | } |
| 577 | } |
| 578 | } |
| 579 | |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 580 | @Override |
| 581 | public void onChange(boolean selfChange, Uri uri, int userId) { |
| 582 | synchronized (mLock) { |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 583 | if (mPeakRefreshRateSetting.equals(uri) |
| 584 | || mMinRefreshRateSetting.equals(uri)) { |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 585 | updateRefreshRateSettingLocked(); |
| 586 | } else if (mLowPowerModeSetting.equals(uri)) { |
| 587 | updateLowPowerModeSettingLocked(); |
| 588 | } |
| 589 | } |
| 590 | } |
| 591 | |
| 592 | private void updateLowPowerModeSettingLocked() { |
| 593 | boolean inLowPowerMode = Settings.Global.getInt(mContext.getContentResolver(), |
| 594 | Settings.Global.LOW_POWER_MODE, 0 /*default*/) != 0; |
| 595 | final Vote vote; |
| 596 | if (inLowPowerMode) { |
| 597 | vote = Vote.forRefreshRates(0f, 60f); |
| 598 | } else { |
| 599 | vote = null; |
| 600 | } |
| 601 | updateVoteLocked(Vote.PRIORITY_LOW_POWER_MODE, vote); |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 602 | mBrightnessObserver.onLowPowerModeEnabledLocked(inLowPowerMode); |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 603 | } |
| 604 | |
| 605 | private void updateRefreshRateSettingLocked() { |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 606 | float minRefreshRate = Settings.System.getFloat(mContext.getContentResolver(), |
| 607 | Settings.System.MIN_REFRESH_RATE, 0f); |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 608 | float peakRefreshRate = Settings.System.getFloat(mContext.getContentResolver(), |
Adrian Salido | 41cc186 | 2019-04-25 19:34:37 -0700 | [diff] [blame] | 609 | Settings.System.PEAK_REFRESH_RATE, mDefaultPeakRefreshRate); |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 610 | |
| 611 | if (peakRefreshRate < minRefreshRate) { |
| 612 | peakRefreshRate = minRefreshRate; |
| 613 | } |
| 614 | |
| 615 | Vote vote = Vote.forRefreshRates(minRefreshRate, peakRefreshRate); |
Ady Abraham | ce743b7 | 2019-06-11 19:16:12 -0700 | [diff] [blame] | 616 | updateVoteLocked(Vote.PRIORITY_USER_SETTING_REFRESH_RATE, vote); |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 617 | mBrightnessObserver.onRefreshRateSettingChangedLocked(minRefreshRate, peakRefreshRate); |
Long Ling | 741bf5f | 2019-04-15 14:08:49 -0700 | [diff] [blame] | 618 | } |
| 619 | |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 620 | public void dumpLocked(PrintWriter pw) { |
| 621 | pw.println(" SettingsObserver"); |
| 622 | pw.println(" mDefaultPeakRefreshRate: " + mDefaultPeakRefreshRate); |
| 623 | } |
| 624 | } |
| 625 | |
| 626 | final class AppRequestObserver { |
| 627 | private SparseArray<Display.Mode> mAppRequestedModeByDisplay; |
| 628 | |
| 629 | AppRequestObserver() { |
| 630 | mAppRequestedModeByDisplay = new SparseArray<>(); |
| 631 | } |
| 632 | |
| 633 | public void setAppRequestedMode(int displayId, int modeId) { |
| 634 | synchronized (mLock) { |
| 635 | setAppRequestedModeLocked(displayId, modeId); |
| 636 | } |
| 637 | } |
| 638 | |
| 639 | private void setAppRequestedModeLocked(int displayId, int modeId) { |
| 640 | final Display.Mode requestedMode = findModeByIdLocked(displayId, modeId); |
| 641 | if (Objects.equals(requestedMode, mAppRequestedModeByDisplay.get(displayId))) { |
| 642 | return; |
| 643 | } |
| 644 | |
| 645 | final Vote refreshRateVote; |
| 646 | final Vote sizeVote; |
| 647 | if (requestedMode != null) { |
| 648 | mAppRequestedModeByDisplay.put(displayId, requestedMode); |
| 649 | float refreshRate = requestedMode.getRefreshRate(); |
| 650 | refreshRateVote = Vote.forRefreshRates(refreshRate, refreshRate); |
| 651 | sizeVote = Vote.forSize(requestedMode.getPhysicalWidth(), |
| 652 | requestedMode.getPhysicalHeight()); |
| 653 | } else { |
| 654 | mAppRequestedModeByDisplay.remove(displayId); |
| 655 | refreshRateVote = null; |
| 656 | sizeVote = null; |
| 657 | } |
| 658 | updateVoteLocked(displayId, Vote.PRIORITY_APP_REQUEST_REFRESH_RATE, refreshRateVote); |
| 659 | updateVoteLocked(displayId, Vote.PRIORITY_APP_REQUEST_SIZE, sizeVote); |
| 660 | return; |
| 661 | } |
| 662 | |
| 663 | private Display.Mode findModeByIdLocked(int displayId, int modeId) { |
| 664 | Display.Mode[] modes = mSupportedModesByDisplay.get(displayId); |
| 665 | if (modes == null) { |
| 666 | return null; |
| 667 | } |
| 668 | for (Display.Mode mode : modes) { |
| 669 | if (mode.getModeId() == modeId) { |
| 670 | return mode; |
| 671 | } |
| 672 | } |
| 673 | return null; |
| 674 | } |
| 675 | |
| 676 | public void dumpLocked(PrintWriter pw) { |
| 677 | pw.println(" AppRequestObserver"); |
| 678 | pw.println(" mAppRequestedModeByDisplay:"); |
| 679 | for (int i = 0; i < mAppRequestedModeByDisplay.size(); i++) { |
| 680 | final int id = mAppRequestedModeByDisplay.keyAt(i); |
| 681 | final Display.Mode mode = mAppRequestedModeByDisplay.valueAt(i); |
| 682 | pw.println(" " + id + " -> " + mode); |
| 683 | } |
| 684 | } |
| 685 | } |
| 686 | |
| 687 | private final class DisplayObserver implements DisplayManager.DisplayListener { |
| 688 | // Note that we can never call into DisplayManager or any of the non-POD classes it |
| 689 | // returns, while holding mLock since it may call into DMS, which might be simultaneously |
| 690 | // calling into us already holding its own lock. |
| 691 | private final Context mContext; |
| 692 | private final Handler mHandler; |
| 693 | |
| 694 | DisplayObserver(Context context, Handler handler) { |
| 695 | mContext = context; |
| 696 | mHandler = handler; |
| 697 | } |
| 698 | |
| 699 | public void observe() { |
| 700 | DisplayManager dm = mContext.getSystemService(DisplayManager.class); |
| 701 | dm.registerDisplayListener(this, mHandler); |
| 702 | |
| 703 | // Populate existing displays |
| 704 | SparseArray<Display.Mode[]> modes = new SparseArray<>(); |
| 705 | SparseArray<Display.Mode> defaultModes = new SparseArray<>(); |
| 706 | DisplayInfo info = new DisplayInfo(); |
| 707 | Display[] displays = dm.getDisplays(); |
| 708 | for (Display d : displays) { |
| 709 | final int displayId = d.getDisplayId(); |
| 710 | d.getDisplayInfo(info); |
| 711 | modes.put(displayId, info.supportedModes); |
| 712 | defaultModes.put(displayId, info.getDefaultMode()); |
| 713 | } |
| 714 | synchronized (mLock) { |
| 715 | final int size = modes.size(); |
| 716 | for (int i = 0; i < size; i++) { |
| 717 | mSupportedModesByDisplay.put(modes.keyAt(i), modes.valueAt(i)); |
| 718 | mDefaultModeByDisplay.put(defaultModes.keyAt(i), defaultModes.valueAt(i)); |
| 719 | } |
| 720 | } |
| 721 | } |
| 722 | |
| 723 | @Override |
| 724 | public void onDisplayAdded(int displayId) { |
| 725 | updateDisplayModes(displayId); |
| 726 | } |
| 727 | |
| 728 | @Override |
| 729 | public void onDisplayRemoved(int displayId) { |
| 730 | synchronized (mLock) { |
| 731 | mSupportedModesByDisplay.remove(displayId); |
| 732 | mDefaultModeByDisplay.remove(displayId); |
| 733 | } |
| 734 | } |
| 735 | |
| 736 | @Override |
| 737 | public void onDisplayChanged(int displayId) { |
| 738 | updateDisplayModes(displayId); |
| 739 | } |
| 740 | |
| 741 | private void updateDisplayModes(int displayId) { |
| 742 | Display d = mContext.getSystemService(DisplayManager.class).getDisplay(displayId); |
Michael Wright | 91c2838 | 2019-03-11 12:54:22 +0000 | [diff] [blame] | 743 | if (d == null) { |
| 744 | // We can occasionally get a display added or changed event for a display that was |
| 745 | // subsequently removed, which means this returns null. Check this case and bail |
| 746 | // out early; if it gets re-attached we'll eventually get another call back for it. |
| 747 | return; |
| 748 | } |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 749 | DisplayInfo info = new DisplayInfo(); |
| 750 | d.getDisplayInfo(info); |
| 751 | boolean changed = false; |
| 752 | synchronized (mLock) { |
| 753 | if (!Arrays.equals(mSupportedModesByDisplay.get(displayId), info.supportedModes)) { |
| 754 | mSupportedModesByDisplay.put(displayId, info.supportedModes); |
| 755 | changed = true; |
| 756 | } |
| 757 | if (!Objects.equals(mDefaultModeByDisplay.get(displayId), info.getDefaultMode())) { |
| 758 | changed = true; |
| 759 | mDefaultModeByDisplay.put(displayId, info.getDefaultMode()); |
| 760 | } |
| 761 | if (changed) { |
| 762 | notifyAllowedModesChangedLocked(); |
| 763 | } |
| 764 | } |
| 765 | } |
| 766 | } |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 767 | |
| 768 | /** |
| 769 | * This class manages brightness threshold for switching between 60 hz and higher refresh rate. |
| 770 | * See more information at the definition of |
| 771 | * {@link R.array#config_brightnessThresholdsOfPeakRefreshRate} and |
| 772 | * {@link R.array#config_ambientThresholdsOfPeakRefreshRate}. |
| 773 | */ |
| 774 | private class BrightnessObserver extends ContentObserver { |
| 775 | private final Uri mDisplayBrightnessSetting = |
| 776 | Settings.System.getUriFor(Settings.System.SCREEN_BRIGHTNESS); |
| 777 | |
| 778 | private final static int LIGHT_SENSOR_RATE_MS = 250; |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 779 | private int[] mDisplayBrightnessThresholds; |
| 780 | private int[] mAmbientBrightnessThresholds; |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 781 | // valid threshold if any item from the array >= 0 |
| 782 | private boolean mShouldObserveDisplayChange; |
| 783 | private boolean mShouldObserveAmbientChange; |
| 784 | |
| 785 | private SensorManager mSensorManager; |
| 786 | private Sensor mLightSensor; |
Long Ling | c1ee042 | 2019-07-26 14:23:53 -0700 | [diff] [blame] | 787 | private LightSensorEventListener mLightSensorListener = new LightSensorEventListener(); |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 788 | // Take it as low brightness before valid sensor data comes |
| 789 | private float mAmbientLux = -1.0f; |
| 790 | private AmbientFilter mAmbientFilter; |
| 791 | |
| 792 | private final Context mContext; |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 793 | private final ScreenStateReceiver mScreenStateReceiver; |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 794 | |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 795 | // Enable light sensor only when mShouldObserveAmbientChange is true, screen is on, peak |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 796 | // refresh rate changeable and low power mode off. After initialization, these states will |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 797 | // be updated from the same handler thread. |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 798 | private boolean mScreenOn = false; |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 799 | private boolean mRefreshRateChangeable = false; |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 800 | private boolean mLowPowerModeEnabled = false; |
| 801 | |
| 802 | BrightnessObserver(Context context, Handler handler) { |
| 803 | super(handler); |
| 804 | mContext = context; |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 805 | mScreenStateReceiver = new ScreenStateReceiver(mContext); |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 806 | mDisplayBrightnessThresholds = context.getResources().getIntArray( |
| 807 | R.array.config_brightnessThresholdsOfPeakRefreshRate); |
| 808 | mAmbientBrightnessThresholds = context.getResources().getIntArray( |
| 809 | R.array.config_ambientThresholdsOfPeakRefreshRate); |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 810 | |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 811 | if (mDisplayBrightnessThresholds.length != mAmbientBrightnessThresholds.length) { |
| 812 | throw new RuntimeException("display brightness threshold array and ambient " |
| 813 | + "brightness threshold array have different length"); |
| 814 | } |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 815 | } |
| 816 | |
| 817 | public void observe(SensorManager sensorManager) { |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 818 | mSensorManager = sensorManager; |
| 819 | // DeviceConfig is accessible after system ready. |
| 820 | int[] brightnessThresholds = mDeviceConfigDisplaySettings.getBrightnessThresholds(); |
| 821 | int[] ambientThresholds = mDeviceConfigDisplaySettings.getAmbientThresholds(); |
| 822 | |
| 823 | if (brightnessThresholds != null && ambientThresholds != null |
| 824 | && brightnessThresholds.length == ambientThresholds.length) { |
| 825 | mDisplayBrightnessThresholds = brightnessThresholds; |
| 826 | mAmbientBrightnessThresholds = ambientThresholds; |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 827 | } |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 828 | restartObserver(); |
| 829 | mDeviceConfigDisplaySettings.startListening(); |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 830 | } |
| 831 | |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 832 | public void onRefreshRateSettingChangedLocked(float min, float max) { |
| 833 | boolean changeable = (max - min > 1f && max > 60f); |
| 834 | if (mRefreshRateChangeable != changeable) { |
| 835 | mRefreshRateChangeable = changeable; |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 836 | updateSensorStatus(); |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 837 | if (!changeable) { |
| 838 | // Revoke previous vote from BrightnessObserver |
| 839 | updateVoteLocked(Vote.PRIORITY_LOW_BRIGHTNESS, null); |
| 840 | } |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 841 | } |
| 842 | } |
| 843 | |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 844 | public void onLowPowerModeEnabledLocked(boolean b) { |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 845 | if (mLowPowerModeEnabled != b) { |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 846 | mLowPowerModeEnabled = b; |
| 847 | updateSensorStatus(); |
| 848 | } |
| 849 | } |
| 850 | |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 851 | public void onDeviceConfigThresholdsChanged(int[] brightnessThresholds, |
| 852 | int[] ambientThresholds) { |
| 853 | if (brightnessThresholds != null && ambientThresholds != null |
| 854 | && brightnessThresholds.length == ambientThresholds.length) { |
| 855 | mDisplayBrightnessThresholds = brightnessThresholds; |
| 856 | mAmbientBrightnessThresholds = ambientThresholds; |
| 857 | } else { |
| 858 | // Invalid or empty. Use device default. |
| 859 | mDisplayBrightnessThresholds = mContext.getResources().getIntArray( |
| 860 | R.array.config_brightnessThresholdsOfPeakRefreshRate); |
| 861 | mAmbientBrightnessThresholds = mContext.getResources().getIntArray( |
| 862 | R.array.config_ambientThresholdsOfPeakRefreshRate); |
| 863 | } |
| 864 | restartObserver(); |
| 865 | } |
| 866 | |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 867 | public void dumpLocked(PrintWriter pw) { |
| 868 | pw.println(" BrightnessObserver"); |
| 869 | |
| 870 | for (int d: mDisplayBrightnessThresholds) { |
| 871 | pw.println(" mDisplayBrightnessThreshold: " + d); |
| 872 | } |
| 873 | |
| 874 | for (int d: mAmbientBrightnessThresholds) { |
| 875 | pw.println(" mAmbientBrightnessThreshold: " + d); |
| 876 | } |
| 877 | } |
| 878 | |
| 879 | @Override |
| 880 | public void onChange(boolean selfChange, Uri uri, int userId) { |
| 881 | synchronized (mLock) { |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 882 | if (mRefreshRateChangeable) { |
| 883 | onBrightnessChangedLocked(); |
| 884 | } |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 885 | } |
| 886 | } |
| 887 | |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 888 | private void restartObserver() { |
| 889 | mShouldObserveDisplayChange = checkShouldObserve(mDisplayBrightnessThresholds); |
| 890 | mShouldObserveAmbientChange = checkShouldObserve(mAmbientBrightnessThresholds); |
| 891 | |
| 892 | final ContentResolver cr = mContext.getContentResolver(); |
| 893 | if (mShouldObserveDisplayChange) { |
| 894 | // Content Service does not check if an listener has already been registered. |
| 895 | // To ensure only one listener is registered, force an unregistration first. |
| 896 | cr.unregisterContentObserver(this); |
| 897 | cr.registerContentObserver(mDisplayBrightnessSetting, |
| 898 | false /*notifyDescendants*/, this, UserHandle.USER_SYSTEM); |
| 899 | } else { |
| 900 | cr.unregisterContentObserver(this); |
| 901 | } |
| 902 | |
| 903 | if (mShouldObserveAmbientChange) { |
| 904 | Resources resources = mContext.getResources(); |
| 905 | String lightSensorType = resources.getString( |
| 906 | com.android.internal.R.string.config_displayLightSensorType); |
| 907 | |
| 908 | Sensor lightSensor = null; |
| 909 | if (!TextUtils.isEmpty(lightSensorType)) { |
| 910 | List<Sensor> sensors = mSensorManager.getSensorList(Sensor.TYPE_ALL); |
| 911 | for (int i = 0; i < sensors.size(); i++) { |
| 912 | Sensor sensor = sensors.get(i); |
| 913 | if (lightSensorType.equals(sensor.getStringType())) { |
| 914 | lightSensor = sensor; |
| 915 | break; |
| 916 | } |
| 917 | } |
| 918 | } |
| 919 | |
| 920 | if (lightSensor == null) { |
| 921 | lightSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_LIGHT); |
| 922 | } |
| 923 | |
| 924 | if (lightSensor != null) { |
| 925 | final Resources res = mContext.getResources(); |
| 926 | |
| 927 | mAmbientFilter = DisplayWhiteBalanceFactory.createBrightnessFilter(res); |
| 928 | mLightSensor = lightSensor; |
| 929 | |
| 930 | // Intent.ACTION_SCREEN_ON is not sticky. Check current screen status. |
| 931 | if (mContext.getSystemService(PowerManager.class).isInteractive()) { |
| 932 | onScreenOn(true); |
| 933 | } |
| 934 | mScreenStateReceiver.register(); |
| 935 | } |
| 936 | } else { |
| 937 | mAmbientFilter = null; |
| 938 | mLightSensor = null; |
| 939 | mScreenStateReceiver.unregister(); |
| 940 | } |
| 941 | |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 942 | if (mRefreshRateChangeable) { |
| 943 | updateSensorStatus(); |
| 944 | synchronized (mLock) { |
| 945 | onBrightnessChangedLocked(); |
| 946 | } |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 947 | } |
| 948 | } |
| 949 | |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 950 | /** |
| 951 | * Checks to see if at least one value is positive, in which case it is necessary to listen |
| 952 | * to value changes. |
| 953 | */ |
| 954 | private boolean checkShouldObserve(int[] a) { |
| 955 | for (int d: a) { |
| 956 | if (d >= 0) { |
| 957 | return true; |
| 958 | } |
| 959 | } |
| 960 | |
| 961 | return false; |
| 962 | } |
| 963 | |
| 964 | private void onBrightnessChangedLocked() { |
| 965 | int brightness = Settings.System.getInt(mContext.getContentResolver(), |
| 966 | Settings.System.SCREEN_BRIGHTNESS, -1); |
| 967 | |
| 968 | Vote vote = null; |
| 969 | for (int i = 0; i < mDisplayBrightnessThresholds.length; i++) { |
| 970 | int disp = mDisplayBrightnessThresholds[i]; |
| 971 | int ambi = mAmbientBrightnessThresholds[i]; |
| 972 | |
| 973 | if (disp >= 0 && ambi >= 0) { |
| 974 | if (brightness <= disp && mAmbientLux <= ambi) { |
| 975 | vote = Vote.forRefreshRates(0f, 60f); |
| 976 | } |
| 977 | } else if (disp >= 0) { |
| 978 | if (brightness <= disp) { |
| 979 | vote = Vote.forRefreshRates(0f, 60f); |
| 980 | } |
| 981 | } else if (ambi >= 0) { |
| 982 | if (mAmbientLux <= ambi) { |
| 983 | vote = Vote.forRefreshRates(0f, 60f); |
| 984 | } |
| 985 | } |
| 986 | |
| 987 | if (vote != null) { |
| 988 | break; |
| 989 | } |
| 990 | } |
| 991 | |
| 992 | if (DEBUG) { |
| 993 | Slog.d(TAG, "Display brightness " + brightness + ", ambient lux " + mAmbientLux + |
| 994 | (vote != null ? " 60hz only" : " no refresh rate limit")); |
| 995 | } |
| 996 | updateVoteLocked(Vote.PRIORITY_LOW_BRIGHTNESS, vote); |
| 997 | } |
| 998 | |
| 999 | private void onScreenOn(boolean on) { |
| 1000 | // Not check mShouldObserveAmbientChange because Screen status receiver is registered |
| 1001 | // only when it is true. |
| 1002 | if (mScreenOn != on) { |
| 1003 | mScreenOn = on; |
| 1004 | updateSensorStatus(); |
| 1005 | } |
| 1006 | } |
| 1007 | |
| 1008 | private void updateSensorStatus() { |
| 1009 | if (mSensorManager == null || mLightSensorListener == null) { |
| 1010 | return; |
| 1011 | } |
| 1012 | |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 1013 | if (mShouldObserveAmbientChange && mScreenOn && !mLowPowerModeEnabled |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 1014 | && mRefreshRateChangeable) { |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 1015 | mSensorManager.registerListener(mLightSensorListener, |
| 1016 | mLightSensor, LIGHT_SENSOR_RATE_MS * 1000, mHandler); |
| 1017 | } else { |
Long Ling | c1ee042 | 2019-07-26 14:23:53 -0700 | [diff] [blame] | 1018 | mLightSensorListener.removeCallbacks(); |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 1019 | mSensorManager.unregisterListener(mLightSensorListener); |
| 1020 | } |
| 1021 | } |
| 1022 | |
Long Ling | c1ee042 | 2019-07-26 14:23:53 -0700 | [diff] [blame] | 1023 | private final class LightSensorEventListener implements SensorEventListener { |
| 1024 | final private static int INJECT_EVENTS_INTERVAL_MS = LIGHT_SENSOR_RATE_MS; |
| 1025 | private float mLastSensorData; |
| 1026 | |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 1027 | @Override |
| 1028 | public void onSensorChanged(SensorEvent event) { |
Long Ling | c1ee042 | 2019-07-26 14:23:53 -0700 | [diff] [blame] | 1029 | mLastSensorData = event.values[0]; |
| 1030 | if (DEBUG) { |
| 1031 | Slog.d(TAG, "On sensor changed: " + mLastSensorData); |
| 1032 | } |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 1033 | |
Long Ling | c1ee042 | 2019-07-26 14:23:53 -0700 | [diff] [blame] | 1034 | boolean zoneChanged = isDifferentZone(mLastSensorData, mAmbientLux); |
| 1035 | if (zoneChanged && mLastSensorData < mAmbientLux) { |
| 1036 | // Easier to see flicker at lower brightness environment. Forget the history to |
| 1037 | // get immediate response. |
| 1038 | mAmbientFilter.clear(); |
| 1039 | } |
| 1040 | |
| 1041 | long now = SystemClock.uptimeMillis(); |
| 1042 | mAmbientFilter.addValue(now, mLastSensorData); |
| 1043 | |
| 1044 | mHandler.removeCallbacks(mInjectSensorEventRunnable); |
| 1045 | processSensorData(now); |
| 1046 | |
| 1047 | if (zoneChanged && mLastSensorData > mAmbientLux) { |
| 1048 | // Sensor may not report new event if there is no brightness change. |
| 1049 | // Need to keep querying the temporal filter for the latest estimation, |
| 1050 | // until enter in higher lux zone or is interrupted by a new sensor event. |
| 1051 | mHandler.postDelayed(mInjectSensorEventRunnable, INJECT_EVENTS_INTERVAL_MS); |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 1052 | } |
| 1053 | } |
| 1054 | |
| 1055 | @Override |
| 1056 | public void onAccuracyChanged(Sensor sensor, int accuracy) { |
| 1057 | // Not used. |
| 1058 | } |
Long Ling | c1ee042 | 2019-07-26 14:23:53 -0700 | [diff] [blame] | 1059 | |
| 1060 | public void removeCallbacks() { |
| 1061 | mHandler.removeCallbacks(mInjectSensorEventRunnable); |
| 1062 | } |
| 1063 | |
| 1064 | private void processSensorData(long now) { |
| 1065 | mAmbientLux = mAmbientFilter.getEstimate(now); |
| 1066 | |
| 1067 | synchronized (mLock) { |
| 1068 | onBrightnessChangedLocked(); |
| 1069 | } |
| 1070 | } |
| 1071 | |
| 1072 | private boolean isDifferentZone(float lux1, float lux2) { |
| 1073 | for (int z = 0; z < mAmbientBrightnessThresholds.length; z++) { |
| 1074 | final float boundary = mAmbientBrightnessThresholds[z]; |
| 1075 | |
| 1076 | // Test each boundary. See if the current value and the new value are at |
| 1077 | // different sides. |
| 1078 | if ((lux1 <= boundary && lux2 > boundary) |
| 1079 | || (lux1 > boundary && lux2 <= boundary)) { |
| 1080 | return true; |
| 1081 | } |
| 1082 | } |
| 1083 | |
| 1084 | return false; |
| 1085 | } |
| 1086 | |
| 1087 | private Runnable mInjectSensorEventRunnable = new Runnable() { |
| 1088 | @Override |
| 1089 | public void run() { |
| 1090 | long now = SystemClock.uptimeMillis(); |
| 1091 | // No need to really inject the last event into a temporal filter. |
| 1092 | processSensorData(now); |
| 1093 | |
| 1094 | // Inject next event if there is a possible zone change. |
| 1095 | if (isDifferentZone(mLastSensorData, mAmbientLux)) { |
| 1096 | mHandler.postDelayed(mInjectSensorEventRunnable, INJECT_EVENTS_INTERVAL_MS); |
| 1097 | } |
| 1098 | } |
| 1099 | }; |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 1100 | }; |
| 1101 | |
| 1102 | private final class ScreenStateReceiver extends BroadcastReceiver { |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 1103 | final Context mContext; |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 1104 | boolean mRegistered; |
| 1105 | |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 1106 | public ScreenStateReceiver(Context context) { |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 1107 | mContext = context; |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 1108 | } |
| 1109 | |
| 1110 | @Override |
| 1111 | public void onReceive(Context context, Intent intent) { |
| 1112 | onScreenOn(Intent.ACTION_SCREEN_ON.equals(intent.getAction())); |
| 1113 | } |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 1114 | |
| 1115 | public void register() { |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 1116 | if (!mRegistered) { |
| 1117 | IntentFilter filter = new IntentFilter(); |
| 1118 | filter.addAction(Intent.ACTION_SCREEN_OFF); |
| 1119 | filter.addAction(Intent.ACTION_SCREEN_ON); |
| 1120 | filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); |
| 1121 | mContext.registerReceiver(this, filter, null, mHandler); |
| 1122 | mRegistered = true; |
| 1123 | } |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 1124 | } |
| 1125 | |
| 1126 | public void unregister() { |
Long Ling | 86ce8f7 | 2019-08-17 18:02:46 -0700 | [diff] [blame] | 1127 | if (mRegistered) { |
| 1128 | mContext.unregisterReceiver(this); |
| 1129 | mRegistered = false; |
| 1130 | } |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 1131 | } |
Long Ling | bc841b0 | 2019-07-03 16:43:15 -0700 | [diff] [blame] | 1132 | } |
| 1133 | } |
Long Ling | 67aae3f | 2019-08-08 16:05:44 -0700 | [diff] [blame] | 1134 | |
| 1135 | private class DeviceConfigDisplaySettings implements DeviceConfig.OnPropertiesChangedListener { |
| 1136 | |
| 1137 | public DeviceConfigDisplaySettings() { |
| 1138 | } |
| 1139 | |
| 1140 | public void startListening() { |
| 1141 | DeviceConfig.addOnPropertiesChangedListener(DeviceConfig.NAMESPACE_DISPLAY_MANAGER, |
| 1142 | BackgroundThread.getExecutor(), this); |
| 1143 | } |
| 1144 | |
| 1145 | /* |
| 1146 | * Return null if no such property or wrong format (not comma separated integers). |
| 1147 | */ |
| 1148 | public int[] getBrightnessThresholds() { |
| 1149 | return getIntArrayProperty( |
| 1150 | DisplayManager.DeviceConfig.KEY_PEAK_REFRESH_RATE_BRIGHTNESS_THRESHOLDS); |
| 1151 | } |
| 1152 | |
| 1153 | /* |
| 1154 | * Return null if no such property or wrong format (not comma separated integers). |
| 1155 | */ |
| 1156 | public int[] getAmbientThresholds() { |
| 1157 | return getIntArrayProperty( |
| 1158 | DisplayManager.DeviceConfig.KEY_PEAK_REFRESH_RATE_AMBIENT_THRESHOLDS); |
| 1159 | } |
| 1160 | |
| 1161 | /* |
| 1162 | * Return null if no such property |
| 1163 | */ |
| 1164 | public Float getDefaultPeakRefreshRate() { |
| 1165 | float defaultPeakRefreshRate = DeviceConfig.getFloat( |
| 1166 | DeviceConfig.NAMESPACE_DISPLAY_MANAGER, |
| 1167 | DisplayManager.DeviceConfig.KEY_PEAK_REFRESH_RATE_DEFAULT, -1); |
| 1168 | |
| 1169 | if (defaultPeakRefreshRate == -1) { |
| 1170 | return null; |
| 1171 | } |
| 1172 | return defaultPeakRefreshRate; |
| 1173 | } |
| 1174 | |
| 1175 | @Override |
| 1176 | public void onPropertiesChanged(@NonNull DeviceConfig.Properties properties) { |
| 1177 | int[] brightnessThresholds = getBrightnessThresholds(); |
| 1178 | int[] ambientThresholds = getAmbientThresholds(); |
| 1179 | Float defaultPeakRefreshRate = getDefaultPeakRefreshRate(); |
| 1180 | |
| 1181 | mHandler.obtainMessage(MSG_BRIGHTNESS_THRESHOLDS_CHANGED, |
| 1182 | new Pair<int[], int[]>(brightnessThresholds, ambientThresholds)) |
| 1183 | .sendToTarget(); |
| 1184 | mHandler.obtainMessage(MSG_DEFAULT_PEAK_REFRESH_RATE_CHANGED, |
| 1185 | defaultPeakRefreshRate).sendToTarget(); |
| 1186 | } |
| 1187 | |
| 1188 | private int[] getIntArrayProperty(String prop) { |
| 1189 | String strArray = DeviceConfig.getString(DeviceConfig.NAMESPACE_DISPLAY_MANAGER, prop, |
| 1190 | null); |
| 1191 | |
| 1192 | if (strArray != null) { |
| 1193 | return parseIntArray(strArray); |
| 1194 | } |
| 1195 | |
| 1196 | return null; |
| 1197 | } |
| 1198 | |
| 1199 | private int[] parseIntArray(@NonNull String strArray) { |
| 1200 | String[] items = strArray.split(","); |
| 1201 | int[] array = new int[items.length]; |
| 1202 | |
| 1203 | try { |
| 1204 | for (int i = 0; i < array.length; i++) { |
| 1205 | array[i] = Integer.parseInt(items[i]); |
| 1206 | } |
| 1207 | } catch (NumberFormatException e) { |
| 1208 | Slog.e(TAG, "Incorrect format for array: '" + strArray + "'", e); |
| 1209 | array = null; |
| 1210 | } |
| 1211 | |
| 1212 | return array; |
| 1213 | } |
| 1214 | } |
| 1215 | |
Michael Wright | a3dab23 | 2019-02-22 16:54:21 +0000 | [diff] [blame] | 1216 | } |