Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -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 | |
| 17 | package com.android.server.display; |
| 18 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 19 | import com.android.internal.util.IndentingPrintWriter; |
| 20 | |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 21 | import android.Manifest; |
| 22 | import android.content.Context; |
| 23 | import android.content.pm.PackageManager; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 24 | import android.hardware.display.DisplayManagerGlobal; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 25 | import android.hardware.display.IDisplayManager; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 26 | import android.hardware.display.IDisplayManagerCallback; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 27 | import android.os.Binder; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 28 | import android.os.Handler; |
Jeff Brown | 64a55af | 2012-08-26 02:47:39 -0700 | [diff] [blame] | 29 | import android.os.IBinder; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 30 | import android.os.Looper; |
| 31 | import android.os.Message; |
| 32 | import android.os.RemoteException; |
| 33 | import android.os.SystemClock; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 34 | import android.os.SystemProperties; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 35 | import android.util.Slog; |
| 36 | import android.util.SparseArray; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 37 | import android.view.Display; |
| 38 | import android.view.DisplayInfo; |
| 39 | import android.view.Surface; |
| 40 | |
| 41 | import java.io.FileDescriptor; |
| 42 | import java.io.PrintWriter; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 43 | import java.io.StringWriter; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 44 | import java.util.ArrayList; |
| 45 | |
| 46 | /** |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 47 | * Manages attached displays. |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 48 | * <p> |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 49 | * The {@link DisplayManagerService} manages the global lifecycle of displays, |
| 50 | * decides how to configure logical displays based on the physical display devices currently |
| 51 | * attached, sends notifications to the system and to applications when the state |
| 52 | * changes, and so on. |
| 53 | * </p><p> |
| 54 | * The display manager service relies on a collection of {@link DisplayAdapter} components, |
| 55 | * for discovering and configuring physical display devices attached to the system. |
| 56 | * There are separate display adapters for each manner that devices are attached: |
| 57 | * one display adapter for built-in local displays, one for simulated non-functional |
| 58 | * displays when the system is headless, one for simulated overlay displays used for |
| 59 | * development, one for wifi displays, etc. |
| 60 | * </p><p> |
| 61 | * Display adapters are only weakly coupled to the display manager service. |
| 62 | * Display adapters communicate changes in display device state to the display manager |
| 63 | * service asynchronously via a {@link DisplayAdapter.DisplayAdapterListener} registered |
| 64 | * by the display manager service. This separation of concerns is important for |
| 65 | * two main reasons. First, it neatly encapsulates the responsibilities of these |
| 66 | * two classes: display adapters handle individual display devices whereas |
| 67 | * the display manager service handles the global state. Second, it eliminates |
| 68 | * the potential for deadlocks resulting from asynchronous display device discovery. |
| 69 | * </p><p> |
| 70 | * To keep things simple, display adapters and display devices are single-threaded |
| 71 | * and are only accessed on the display manager's handler thread. Of course, the |
| 72 | * display manager must be accessible by multiple thread (especially for |
| 73 | * incoming binder calls) so all of the display manager's state is synchronized |
| 74 | * and guarded by a lock. |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 75 | * </p> |
| 76 | */ |
| 77 | public final class DisplayManagerService extends IDisplayManager.Stub { |
| 78 | private static final String TAG = "DisplayManagerService"; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 79 | private static final boolean DEBUG = false; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 80 | |
| 81 | private static final String SYSTEM_HEADLESS = "ro.config.headless"; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 82 | private static final long WAIT_FOR_DEFAULT_DISPLAY_TIMEOUT = 10000; |
| 83 | |
| 84 | private static final int MSG_REGISTER_DEFAULT_DISPLAY_ADAPTER = 1; |
| 85 | private static final int MSG_REGISTER_ADDITIONAL_DISPLAY_ADAPTERS = 2; |
| 86 | private static final int MSG_DELIVER_DISPLAY_EVENT = 3; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 87 | |
| 88 | private final Object mLock = new Object(); |
| 89 | |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 90 | private final Context mContext; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 91 | private final boolean mHeadless; |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 92 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 93 | private final DisplayManagerHandler mHandler; |
| 94 | private final DisplayAdapterListener mDisplayAdapterListener = new DisplayAdapterListener(); |
| 95 | private final SparseArray<CallbackRecord> mCallbacks = |
| 96 | new SparseArray<CallbackRecord>(); |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 97 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 98 | // List of all currently registered display adapters. |
| 99 | private final ArrayList<DisplayAdapter> mDisplayAdapters = new ArrayList<DisplayAdapter>(); |
| 100 | |
| 101 | // List of all currently connected display devices. |
| 102 | private final ArrayList<DisplayDevice> mDisplayDevices = new ArrayList<DisplayDevice>(); |
| 103 | |
| 104 | // List of all logical displays, indexed by logical display id. |
| 105 | private final SparseArray<LogicalDisplay> mLogicalDisplays = new SparseArray<LogicalDisplay>(); |
| 106 | private int mNextNonDefaultDisplayId = Display.DEFAULT_DISPLAY + 1; |
| 107 | |
| 108 | // True if in safe mode. |
| 109 | // This option may disable certain display adapters. |
| 110 | private boolean mSafeMode; |
| 111 | |
| 112 | // True if we are in a special boot mode where only core applications and |
| 113 | // services should be started. This option may disable certain display adapters. |
| 114 | private boolean mOnlyCore; |
| 115 | |
| 116 | // Temporary callback list, used when sending display events to applications. |
| 117 | private ArrayList<CallbackRecord> mTempCallbacks = new ArrayList<CallbackRecord>(); |
| 118 | |
| 119 | public DisplayManagerService(Context context, Handler uiHandler) { |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 120 | mContext = context; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 121 | mHeadless = SystemProperties.get(SYSTEM_HEADLESS).equals("1"); |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 122 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 123 | mHandler = new DisplayManagerHandler(uiHandler.getLooper()); |
| 124 | mHandler.sendEmptyMessage(MSG_REGISTER_DEFAULT_DISPLAY_ADAPTER); |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 125 | } |
| 126 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 127 | /** |
| 128 | * Pauses the boot process to wait for the first display to be initialized. |
| 129 | */ |
| 130 | public boolean waitForDefaultDisplay() { |
| 131 | synchronized (mLock) { |
| 132 | long timeout = SystemClock.uptimeMillis() + WAIT_FOR_DEFAULT_DISPLAY_TIMEOUT; |
| 133 | while (mLogicalDisplays.get(Display.DEFAULT_DISPLAY) == null) { |
| 134 | long delay = timeout - SystemClock.uptimeMillis(); |
| 135 | if (delay <= 0) { |
| 136 | return false; |
| 137 | } |
| 138 | if (DEBUG) { |
| 139 | Slog.d(TAG, "waitForDefaultDisplay: waiting, timeout=" + delay); |
| 140 | } |
| 141 | try { |
| 142 | mLock.wait(delay); |
| 143 | } catch (InterruptedException ex) { |
| 144 | } |
| 145 | } |
| 146 | } |
| 147 | return true; |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * Called when the system is ready to go. |
| 152 | */ |
| 153 | public void systemReady(boolean safeMode, boolean onlyCore) { |
| 154 | synchronized (mLock) { |
| 155 | mSafeMode = safeMode; |
| 156 | mOnlyCore = onlyCore; |
| 157 | } |
| 158 | mHandler.sendEmptyMessage(MSG_REGISTER_ADDITIONAL_DISPLAY_ADAPTERS); |
| 159 | } |
| 160 | |
| 161 | // Runs on handler. |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 162 | private void registerDefaultDisplayAdapter() { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 163 | // Register default display adapter. |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 164 | if (mHeadless) { |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 165 | registerDisplayAdapter(new HeadlessDisplayAdapter(mContext)); |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 166 | } else { |
Jeff Brown | 64a55af | 2012-08-26 02:47:39 -0700 | [diff] [blame] | 167 | registerDisplayAdapter(new LocalDisplayAdapter(mContext)); |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 168 | } |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 169 | } |
| 170 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 171 | // Runs on handler. |
| 172 | private void registerAdditionalDisplayAdapters() { |
| 173 | if (shouldRegisterNonEssentialDisplayAdapters()) { |
| 174 | registerDisplayAdapter(new OverlayDisplayAdapter(mContext)); |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | private boolean shouldRegisterNonEssentialDisplayAdapters() { |
| 179 | // In safe mode, we disable non-essential display adapters to give the user |
| 180 | // an opportunity to fix broken settings or other problems that might affect |
| 181 | // system stability. |
| 182 | // In only-core mode, we disable non-essential display adapters to minimize |
| 183 | // the number of dependencies that are started while in this mode and to |
| 184 | // prevent problems that might occur due to the device being encrypted. |
| 185 | synchronized (mLock) { |
| 186 | return !mSafeMode && !mOnlyCore; |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | // Runs on handler. |
| 191 | private void registerDisplayAdapter(DisplayAdapter adapter) { |
| 192 | synchronized (mLock) { |
| 193 | mDisplayAdapters.add(adapter); |
| 194 | } |
| 195 | |
| 196 | adapter.register(mDisplayAdapterListener); |
| 197 | } |
| 198 | |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 199 | // FIXME: this isn't the right API for the long term |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 200 | public void getDefaultExternalDisplayDeviceInfo(DisplayDeviceInfo info) { |
| 201 | // hardcoded assuming 720p touch screen plugged into HDMI and USB |
| 202 | // need to redesign this |
| 203 | info.width = 1280; |
| 204 | info.height = 720; |
| 205 | } |
| 206 | |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 207 | /** |
| 208 | * Returns true if the device is headless. |
| 209 | * |
| 210 | * @return True if the device is headless. |
| 211 | */ |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 212 | public boolean isHeadless() { |
| 213 | return mHeadless; |
| 214 | } |
| 215 | |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 216 | /** |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 217 | * Sets the new logical display orientation. |
| 218 | * |
Jeff Brown | 64a55af | 2012-08-26 02:47:39 -0700 | [diff] [blame] | 219 | * @param displayId The logical display id. |
| 220 | * @param orientation One of the Surface.ROTATION_* constants. |
| 221 | */ |
| 222 | public void setDisplayOrientation(int displayId, int orientation) { |
| 223 | synchronized (mLock) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 224 | // TODO: update mirror transforms |
| 225 | LogicalDisplay display = mLogicalDisplays.get(displayId); |
| 226 | if (display != null && display.mPrimaryDisplayDevice != null) { |
| 227 | IBinder displayToken = display.mPrimaryDisplayDevice.getDisplayToken(); |
| 228 | if (displayToken != null) { |
| 229 | Surface.openTransaction(); |
| 230 | try { |
| 231 | Surface.setDisplayOrientation(displayToken, orientation); |
| 232 | } finally { |
| 233 | Surface.closeTransaction(); |
| 234 | } |
| 235 | } |
| 236 | |
| 237 | display.mBaseDisplayInfo.rotation = orientation; |
| 238 | sendDisplayEventLocked(displayId, DisplayManagerGlobal.EVENT_DISPLAY_CHANGED); |
| 239 | } |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | /** |
| 244 | * Overrides the display information of a particular logical display. |
| 245 | * This is used by the window manager to control the size and characteristics |
| 246 | * of the default display. |
| 247 | * |
| 248 | * @param displayId The logical display id. |
| 249 | * @param info The new data to be stored. |
| 250 | */ |
| 251 | public void setDisplayInfoOverrideFromWindowManager(int displayId, DisplayInfo info) { |
| 252 | synchronized (mLock) { |
| 253 | LogicalDisplay display = mLogicalDisplays.get(displayId); |
| 254 | if (display != null) { |
| 255 | if (info != null) { |
| 256 | if (display.mOverrideDisplayInfo == null) { |
| 257 | display.mOverrideDisplayInfo = new DisplayInfo(); |
| 258 | } |
| 259 | display.mOverrideDisplayInfo.copyFrom(info); |
| 260 | } else { |
| 261 | display.mOverrideDisplayInfo = null; |
| 262 | } |
| 263 | |
| 264 | sendDisplayEventLocked(displayId, DisplayManagerGlobal.EVENT_DISPLAY_CHANGED); |
| 265 | } |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | /** |
| 270 | * Returns information about the specified logical display. |
| 271 | * |
| 272 | * @param displayId The logical display id. |
| 273 | * @param The logical display info, or null if the display does not exist. |
| 274 | */ |
| 275 | @Override // Binder call |
| 276 | public DisplayInfo getDisplayInfo(int displayId) { |
| 277 | synchronized (mLock) { |
| 278 | LogicalDisplay display = mLogicalDisplays.get(displayId); |
| 279 | if (display != null) { |
| 280 | if (display.mOverrideDisplayInfo != null) { |
| 281 | return new DisplayInfo(display.mOverrideDisplayInfo); |
| 282 | } |
| 283 | return new DisplayInfo(display.mBaseDisplayInfo); |
| 284 | } |
| 285 | return null; |
| 286 | } |
| 287 | } |
| 288 | |
| 289 | @Override // Binder call |
| 290 | public int[] getDisplayIds() { |
| 291 | synchronized (mLock) { |
| 292 | final int count = mLogicalDisplays.size(); |
| 293 | int[] displayIds = new int[count]; |
| 294 | for (int i = 0; i > count; i++) { |
| 295 | displayIds[i] = mLogicalDisplays.keyAt(i); |
| 296 | } |
| 297 | return displayIds; |
| 298 | } |
| 299 | } |
| 300 | |
| 301 | @Override // Binder call |
| 302 | public void registerCallback(IDisplayManagerCallback callback) { |
| 303 | if (callback == null) { |
| 304 | throw new IllegalArgumentException("listener must not be null"); |
| 305 | } |
| 306 | |
| 307 | synchronized (mLock) { |
| 308 | int callingPid = Binder.getCallingPid(); |
| 309 | if (mCallbacks.get(callingPid) != null) { |
| 310 | throw new SecurityException("The calling process has already " |
| 311 | + "registered an IDisplayManagerCallback."); |
Jeff Brown | 64a55af | 2012-08-26 02:47:39 -0700 | [diff] [blame] | 312 | } |
| 313 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 314 | CallbackRecord record = new CallbackRecord(callingPid, callback); |
| 315 | try { |
| 316 | IBinder binder = callback.asBinder(); |
| 317 | binder.linkToDeath(record, 0); |
| 318 | } catch (RemoteException ex) { |
| 319 | // give up |
| 320 | throw new RuntimeException(ex); |
| 321 | } |
| 322 | |
| 323 | mCallbacks.put(callingPid, record); |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | private void onCallbackDied(int pid) { |
| 328 | synchronized (mLock) { |
| 329 | mCallbacks.remove(pid); |
| 330 | } |
| 331 | } |
| 332 | |
| 333 | // Runs on handler. |
| 334 | private void handleDisplayDeviceAdded(DisplayDevice device) { |
| 335 | synchronized (mLock) { |
| 336 | if (mDisplayDevices.contains(device)) { |
| 337 | Slog.w(TAG, "Attempted to add already added display device: " + device); |
| 338 | return; |
| 339 | } |
| 340 | |
| 341 | mDisplayDevices.add(device); |
| 342 | |
| 343 | LogicalDisplay display = new LogicalDisplay(device); |
| 344 | display.updateFromPrimaryDisplayDevice(); |
| 345 | |
| 346 | boolean isDefault = (display.mPrimaryDisplayDeviceInfo.flags |
| 347 | & DisplayDeviceInfo.FLAG_DEFAULT_DISPLAY) != 0; |
| 348 | if (isDefault && mLogicalDisplays.get(Display.DEFAULT_DISPLAY) != null) { |
| 349 | Slog.w(TAG, "Attempted to add a second default device: " + device); |
| 350 | isDefault = false; |
| 351 | } |
| 352 | |
| 353 | int displayId = isDefault ? Display.DEFAULT_DISPLAY : mNextNonDefaultDisplayId++; |
| 354 | mLogicalDisplays.put(displayId, display); |
| 355 | |
| 356 | sendDisplayEventLocked(displayId, DisplayManagerGlobal.EVENT_DISPLAY_ADDED); |
| 357 | |
| 358 | // Wake up waitForDefaultDisplay. |
| 359 | if (isDefault) { |
| 360 | mLock.notifyAll(); |
| 361 | } |
| 362 | } |
| 363 | } |
| 364 | |
| 365 | // Runs on handler. |
| 366 | private void handleDisplayDeviceChanged(DisplayDevice device) { |
| 367 | synchronized (mLock) { |
| 368 | if (!mDisplayDevices.contains(device)) { |
| 369 | Slog.w(TAG, "Attempted to change non-existent display device: " + device); |
| 370 | return; |
| 371 | } |
| 372 | |
| 373 | for (int i = mLogicalDisplays.size(); i-- > 0; ) { |
| 374 | LogicalDisplay display = mLogicalDisplays.valueAt(i); |
| 375 | if (display.mPrimaryDisplayDevice == device) { |
| 376 | final int displayId = mLogicalDisplays.keyAt(i); |
| 377 | display.updateFromPrimaryDisplayDevice(); |
| 378 | sendDisplayEventLocked(displayId, DisplayManagerGlobal.EVENT_DISPLAY_CHANGED); |
Jeff Brown | 64a55af | 2012-08-26 02:47:39 -0700 | [diff] [blame] | 379 | } |
| 380 | } |
| 381 | } |
| 382 | } |
| 383 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 384 | // Runs on handler. |
| 385 | private void handleDisplayDeviceRemoved(DisplayDevice device) { |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 386 | synchronized (mLock) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 387 | if (!mDisplayDevices.remove(device)) { |
| 388 | Slog.w(TAG, "Attempted to remove non-existent display device: " + device); |
| 389 | return; |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 390 | } |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 391 | |
| 392 | for (int i = mLogicalDisplays.size(); i-- > 0; ) { |
| 393 | LogicalDisplay display = mLogicalDisplays.valueAt(i); |
| 394 | if (display.mPrimaryDisplayDevice == device) { |
| 395 | final int displayId = mLogicalDisplays.keyAt(i); |
| 396 | mLogicalDisplays.removeAt(i); |
| 397 | sendDisplayEventLocked(displayId, DisplayManagerGlobal.EVENT_DISPLAY_REMOVED); |
| 398 | } |
| 399 | } |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 400 | } |
| 401 | } |
| 402 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 403 | // Posts a message to send a display event at the next opportunity. |
| 404 | private void sendDisplayEventLocked(int displayId, int event) { |
| 405 | Message msg = mHandler.obtainMessage(MSG_DELIVER_DISPLAY_EVENT, displayId, event); |
| 406 | mHandler.sendMessage(msg); |
| 407 | } |
| 408 | |
| 409 | // Runs on handler. |
| 410 | // This method actually sends display event notifications. |
| 411 | // Note that it must be very careful not to be holding the lock while sending |
| 412 | // is in progress. |
| 413 | private void deliverDisplayEvent(int displayId, int event) { |
| 414 | if (DEBUG) { |
| 415 | Slog.d(TAG, "Delivering display event: displayId=" + displayId + ", event=" + event); |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 416 | } |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 417 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 418 | final int count; |
| 419 | synchronized (mLock) { |
| 420 | count = mCallbacks.size(); |
| 421 | mTempCallbacks.clear(); |
| 422 | for (int i = 0; i < count; i++) { |
| 423 | mTempCallbacks.add(mCallbacks.valueAt(i)); |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 424 | } |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 425 | } |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 426 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 427 | for (int i = 0; i < count; i++) { |
| 428 | mTempCallbacks.get(i).notifyDisplayEventAsync(displayId, event); |
| 429 | } |
| 430 | mTempCallbacks.clear(); |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 431 | } |
| 432 | |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 433 | @Override // Binder call |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 434 | public void dump(FileDescriptor fd, final PrintWriter pw, String[] args) { |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 435 | if (mContext == null |
| 436 | || mContext.checkCallingOrSelfPermission(Manifest.permission.DUMP) |
| 437 | != PackageManager.PERMISSION_GRANTED) { |
| 438 | pw.println("Permission Denial: can't dump DisplayManager from from pid=" |
| 439 | + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()); |
| 440 | return; |
| 441 | } |
| 442 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 443 | pw.println("DISPLAY MANAGER (dumpsys display)"); |
| 444 | pw.println(" mHeadless=" + mHeadless); |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 445 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 446 | mHandler.runWithScissors(new Runnable() { |
| 447 | @Override |
| 448 | public void run() { |
| 449 | dumpLocal(pw); |
| 450 | } |
| 451 | }); |
| 452 | } |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 453 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 454 | // Runs on handler. |
| 455 | private void dumpLocal(PrintWriter pw) { |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 456 | synchronized (mLock) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 457 | IndentingPrintWriter ipw = new IndentingPrintWriter(pw, " "); |
| 458 | |
| 459 | pw.println(); |
| 460 | pw.println("Display Adapters: size=" + mDisplayAdapters.size()); |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 461 | for (DisplayAdapter adapter : mDisplayAdapters) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 462 | pw.println(" " + adapter.getName()); |
| 463 | adapter.dump(ipw); |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 464 | } |
Craig Mautner | 9de4936 | 2012-08-02 14:30:30 -0700 | [diff] [blame] | 465 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 466 | pw.println(); |
| 467 | pw.println("Display Devices: size=" + mDisplayDevices.size()); |
| 468 | for (DisplayDevice device : mDisplayDevices) { |
| 469 | pw.println(" " + device); |
| 470 | } |
| 471 | |
| 472 | final int logicalDisplayCount = mLogicalDisplays.size(); |
| 473 | pw.println(); |
| 474 | pw.println("Logical Displays: size=" + logicalDisplayCount); |
| 475 | for (int i = 0; i < logicalDisplayCount; i++) { |
| 476 | int displayId = mLogicalDisplays.keyAt(i); |
| 477 | LogicalDisplay display = mLogicalDisplays.valueAt(i); |
| 478 | pw.println(" Display " + displayId + ":"); |
| 479 | pw.println(" mPrimaryDisplayDevice=" + display.mPrimaryDisplayDevice); |
| 480 | pw.println(" mBaseDisplayInfo=" + display.mBaseDisplayInfo); |
| 481 | pw.println(" mOverrideDisplayInfo=" |
| 482 | + display.mOverrideDisplayInfo); |
| 483 | } |
| 484 | } |
| 485 | } |
| 486 | |
| 487 | private final class DisplayManagerHandler extends Handler { |
| 488 | public DisplayManagerHandler(Looper looper) { |
| 489 | super(looper, null, true /*async*/); |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 490 | } |
Jeff Brown | bf5740e | 2012-08-19 23:20:02 -0700 | [diff] [blame] | 491 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame^] | 492 | @Override |
| 493 | public void handleMessage(Message msg) { |
| 494 | switch (msg.what) { |
| 495 | case MSG_REGISTER_DEFAULT_DISPLAY_ADAPTER: |
| 496 | registerDefaultDisplayAdapter(); |
| 497 | break; |
| 498 | |
| 499 | case MSG_REGISTER_ADDITIONAL_DISPLAY_ADAPTERS: |
| 500 | registerAdditionalDisplayAdapters(); |
| 501 | break; |
| 502 | |
| 503 | case MSG_DELIVER_DISPLAY_EVENT: |
| 504 | deliverDisplayEvent(msg.arg1, msg.arg2); |
| 505 | break; |
| 506 | } |
| 507 | } |
| 508 | } |
| 509 | |
| 510 | private final class DisplayAdapterListener implements DisplayAdapter.Listener { |
| 511 | @Override |
| 512 | public void onDisplayDeviceEvent(DisplayDevice device, int event) { |
| 513 | switch (event) { |
| 514 | case DisplayAdapter.DISPLAY_DEVICE_EVENT_ADDED: |
| 515 | handleDisplayDeviceAdded(device); |
| 516 | break; |
| 517 | |
| 518 | case DisplayAdapter.DISPLAY_DEVICE_EVENT_CHANGED: |
| 519 | handleDisplayDeviceChanged(device); |
| 520 | break; |
| 521 | |
| 522 | case DisplayAdapter.DISPLAY_DEVICE_EVENT_REMOVED: |
| 523 | handleDisplayDeviceRemoved(device); |
| 524 | break; |
| 525 | } |
| 526 | } |
| 527 | } |
| 528 | |
| 529 | private final class CallbackRecord implements DeathRecipient { |
| 530 | private final int mPid; |
| 531 | private final IDisplayManagerCallback mCallback; |
| 532 | |
| 533 | public CallbackRecord(int pid, IDisplayManagerCallback callback) { |
| 534 | mPid = pid; |
| 535 | mCallback = callback; |
| 536 | } |
| 537 | |
| 538 | @Override |
| 539 | public void binderDied() { |
| 540 | if (DEBUG) { |
| 541 | Slog.d(TAG, "Display listener for pid " + mPid + " died."); |
| 542 | } |
| 543 | onCallbackDied(mPid); |
| 544 | } |
| 545 | |
| 546 | public void notifyDisplayEventAsync(int displayId, int event) { |
| 547 | try { |
| 548 | mCallback.onDisplayEvent(displayId, event); |
| 549 | } catch (RemoteException ex) { |
| 550 | Slog.w(TAG, "Failed to notify process " |
| 551 | + mPid + " that displays changed, assuming it died.", ex); |
| 552 | binderDied(); |
| 553 | } |
| 554 | } |
| 555 | } |
| 556 | |
| 557 | /** |
| 558 | * Each logical display is primarily associated with one display device. |
| 559 | * The primary display device is nominally responsible for the basic properties |
| 560 | * of the logical display such as its size, refresh rate, and dpi. |
| 561 | * |
| 562 | * A logical display may be mirrored onto other display devices besides its |
| 563 | * primary display device, but it always remains bound to its primary. |
| 564 | * Note that the contents of a logical display may not always be visible, even |
| 565 | * on its primary display device, such as in the case where the logical display's |
| 566 | * primary display device is currently mirroring content from a different logical display. |
| 567 | */ |
| 568 | private final static class LogicalDisplay { |
| 569 | public final DisplayInfo mBaseDisplayInfo = new DisplayInfo(); |
| 570 | public DisplayInfo mOverrideDisplayInfo; // set by the window manager |
| 571 | |
| 572 | public final DisplayDevice mPrimaryDisplayDevice; |
| 573 | public final DisplayDeviceInfo mPrimaryDisplayDeviceInfo = new DisplayDeviceInfo(); |
| 574 | |
| 575 | public LogicalDisplay(DisplayDevice primaryDisplayDevice) { |
| 576 | mPrimaryDisplayDevice = primaryDisplayDevice; |
| 577 | } |
| 578 | |
| 579 | public void updateFromPrimaryDisplayDevice() { |
| 580 | // Bootstrap the logical display using its associated primary physical display. |
| 581 | mPrimaryDisplayDevice.getInfo(mPrimaryDisplayDeviceInfo); |
| 582 | |
| 583 | mBaseDisplayInfo.appWidth = mPrimaryDisplayDeviceInfo.width; |
| 584 | mBaseDisplayInfo.appHeight = mPrimaryDisplayDeviceInfo.height; |
| 585 | mBaseDisplayInfo.logicalWidth = mPrimaryDisplayDeviceInfo.width; |
| 586 | mBaseDisplayInfo.logicalHeight = mPrimaryDisplayDeviceInfo.height; |
| 587 | mBaseDisplayInfo.rotation = Surface.ROTATION_0; |
| 588 | mBaseDisplayInfo.refreshRate = mPrimaryDisplayDeviceInfo.refreshRate; |
| 589 | mBaseDisplayInfo.logicalDensityDpi = mPrimaryDisplayDeviceInfo.densityDpi; |
| 590 | mBaseDisplayInfo.physicalXDpi = mPrimaryDisplayDeviceInfo.xDpi; |
| 591 | mBaseDisplayInfo.physicalYDpi = mPrimaryDisplayDeviceInfo.yDpi; |
| 592 | mBaseDisplayInfo.smallestNominalAppWidth = mPrimaryDisplayDeviceInfo.width; |
| 593 | mBaseDisplayInfo.smallestNominalAppHeight = mPrimaryDisplayDeviceInfo.height; |
| 594 | mBaseDisplayInfo.largestNominalAppWidth = mPrimaryDisplayDeviceInfo.width; |
| 595 | mBaseDisplayInfo.largestNominalAppHeight = mPrimaryDisplayDeviceInfo.height; |
| 596 | } |
Craig Mautner | 9de4936 | 2012-08-02 14:30:30 -0700 | [diff] [blame] | 597 | } |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 598 | } |