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 | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 27 | import android.hardware.display.WifiDisplayStatus; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 28 | import android.os.Binder; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 29 | import android.os.Handler; |
Jeff Brown | 64a55af | 2012-08-26 02:47:39 -0700 | [diff] [blame] | 30 | import android.os.IBinder; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 31 | import android.os.Looper; |
| 32 | import android.os.Message; |
| 33 | import android.os.RemoteException; |
| 34 | import android.os.SystemClock; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 35 | import android.os.SystemProperties; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 36 | import android.util.Slog; |
| 37 | import android.util.SparseArray; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 38 | import android.view.Display; |
| 39 | import android.view.DisplayInfo; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 40 | |
| 41 | import java.io.FileDescriptor; |
| 42 | import java.io.PrintWriter; |
| 43 | import java.util.ArrayList; |
| 44 | |
| 45 | /** |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 46 | * Manages attached displays. |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 47 | * <p> |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 48 | * The {@link DisplayManagerService} manages the global lifecycle of displays, |
| 49 | * decides how to configure logical displays based on the physical display devices currently |
| 50 | * attached, sends notifications to the system and to applications when the state |
| 51 | * changes, and so on. |
| 52 | * </p><p> |
| 53 | * The display manager service relies on a collection of {@link DisplayAdapter} components, |
| 54 | * for discovering and configuring physical display devices attached to the system. |
| 55 | * There are separate display adapters for each manner that devices are attached: |
| 56 | * one display adapter for built-in local displays, one for simulated non-functional |
| 57 | * displays when the system is headless, one for simulated overlay displays used for |
| 58 | * development, one for wifi displays, etc. |
| 59 | * </p><p> |
| 60 | * Display adapters are only weakly coupled to the display manager service. |
| 61 | * Display adapters communicate changes in display device state to the display manager |
Craig Mautner | 722285e | 2012-09-07 13:55:58 -0700 | [diff] [blame] | 62 | * service asynchronously via a {@link DisplayAdapter.Listener} registered |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 63 | * by the display manager service. This separation of concerns is important for |
| 64 | * two main reasons. First, it neatly encapsulates the responsibilities of these |
| 65 | * two classes: display adapters handle individual display devices whereas |
| 66 | * the display manager service handles the global state. Second, it eliminates |
| 67 | * the potential for deadlocks resulting from asynchronous display device discovery. |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 68 | * </p> |
| 69 | * |
| 70 | * <h3>Synchronization</h3> |
| 71 | * <p> |
| 72 | * Because the display manager may be accessed by multiple threads, the synchronization |
| 73 | * story gets a little complicated. In particular, the window manager may call into |
| 74 | * the display manager while holding a surface transaction with the expectation that |
| 75 | * it can apply changes immediately. Unfortunately, that means we can't just do |
| 76 | * everything asynchronously (*grump*). |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 77 | * </p><p> |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 78 | * To make this work, all of the objects that belong to the display manager must |
| 79 | * use the same lock. We call this lock the synchronization root and it has a unique |
| 80 | * type {@link DisplayManagerService.SyncRoot}. Methods that require this lock are |
| 81 | * named with the "Locked" suffix. |
| 82 | * </p><p> |
| 83 | * Where things get tricky is that the display manager is not allowed to make |
| 84 | * any potentially reentrant calls, especially into the window manager. We generally |
| 85 | * avoid this by making all potentially reentrant out-calls asynchronous. |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 86 | * </p> |
| 87 | */ |
| 88 | public final class DisplayManagerService extends IDisplayManager.Stub { |
| 89 | private static final String TAG = "DisplayManagerService"; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 90 | private static final boolean DEBUG = false; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 91 | |
Jeff Brown | bbd28a2 | 2012-09-20 16:47:15 -0700 | [diff] [blame] | 92 | // When this system property is set to 0, WFD is forcibly disabled on boot. |
| 93 | // When this system property is set to 1, WFD is forcibly enabled on boot. |
| 94 | // Otherwise WFD is enabled according to the value of config_enableWifiDisplay. |
| 95 | private static final String FORCE_WIFI_DISPLAY_ENABLE = "persist.debug.wfd.enable"; |
| 96 | |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 97 | private static final String SYSTEM_HEADLESS = "ro.config.headless"; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 98 | private static final long WAIT_FOR_DEFAULT_DISPLAY_TIMEOUT = 10000; |
| 99 | |
| 100 | private static final int MSG_REGISTER_DEFAULT_DISPLAY_ADAPTER = 1; |
| 101 | private static final int MSG_REGISTER_ADDITIONAL_DISPLAY_ADAPTERS = 2; |
| 102 | private static final int MSG_DELIVER_DISPLAY_EVENT = 3; |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 103 | private static final int MSG_REQUEST_TRAVERSAL = 4; |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 104 | private static final int MSG_UPDATE_VIEWPORT = 5; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 105 | |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 106 | private final Context mContext; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 107 | private final boolean mHeadless; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 108 | private final DisplayManagerHandler mHandler; |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 109 | private final Handler mUiHandler; |
| 110 | private final DisplayAdapterListener mDisplayAdapterListener; |
| 111 | private WindowManagerFuncs mWindowManagerFuncs; |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 112 | private InputManagerFuncs mInputManagerFuncs; |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 113 | |
| 114 | // The synchronization root for the display manager. |
| 115 | // This lock guards most of the display manager's state. |
| 116 | private final SyncRoot mSyncRoot = new SyncRoot(); |
| 117 | |
| 118 | // True if in safe mode. |
| 119 | // This option may disable certain display adapters. |
| 120 | public boolean mSafeMode; |
| 121 | |
| 122 | // True if we are in a special boot mode where only core applications and |
| 123 | // services should be started. This option may disable certain display adapters. |
| 124 | public boolean mOnlyCore; |
| 125 | |
| 126 | // All callback records indexed by calling process id. |
| 127 | public final SparseArray<CallbackRecord> mCallbacks = |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 128 | new SparseArray<CallbackRecord>(); |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 129 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 130 | // List of all currently registered display adapters. |
| 131 | private final ArrayList<DisplayAdapter> mDisplayAdapters = new ArrayList<DisplayAdapter>(); |
| 132 | |
| 133 | // List of all currently connected display devices. |
| 134 | private final ArrayList<DisplayDevice> mDisplayDevices = new ArrayList<DisplayDevice>(); |
| 135 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 136 | // List of all removed display devices. |
| 137 | private final ArrayList<DisplayDevice> mRemovedDisplayDevices = new ArrayList<DisplayDevice>(); |
| 138 | |
| 139 | // List of all logical displays indexed by logical display id. |
| 140 | private final SparseArray<LogicalDisplay> mLogicalDisplays = |
| 141 | new SparseArray<LogicalDisplay>(); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 142 | private int mNextNonDefaultDisplayId = Display.DEFAULT_DISPLAY + 1; |
| 143 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 144 | // Set to true when there are pending display changes that have yet to be applied |
| 145 | // to the surface flinger state. |
| 146 | private boolean mPendingTraversal; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 147 | |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 148 | // The Wifi display adapter, or null if not registered. |
| 149 | private WifiDisplayAdapter mWifiDisplayAdapter; |
| 150 | |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 151 | // Viewports of the default display and the display that should receive touch |
| 152 | // input from an external source. Used by the input system. |
| 153 | private final DisplayViewport mDefaultViewport = new DisplayViewport(); |
| 154 | private final DisplayViewport mExternalTouchViewport = new DisplayViewport(); |
| 155 | |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 156 | // Persistent data store for all internal settings maintained by the display manager service. |
| 157 | private final PersistentDataStore mPersistentDataStore = new PersistentDataStore(); |
| 158 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 159 | // Temporary callback list, used when sending display events to applications. |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 160 | // May be used outside of the lock but only on the handler thread. |
| 161 | private final ArrayList<CallbackRecord> mTempCallbacks = new ArrayList<CallbackRecord>(); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 162 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 163 | // Temporary display info, used for comparing display configurations. |
| 164 | private final DisplayInfo mTempDisplayInfo = new DisplayInfo(); |
| 165 | |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 166 | // Temporary viewports, used when sending new viewport information to the |
| 167 | // input system. May be used outside of the lock but only on the handler thread. |
| 168 | private final DisplayViewport mTempDefaultViewport = new DisplayViewport(); |
| 169 | private final DisplayViewport mTempExternalTouchViewport = new DisplayViewport(); |
| 170 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 171 | public DisplayManagerService(Context context, Handler mainHandler, Handler uiHandler) { |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 172 | mContext = context; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 173 | mHeadless = SystemProperties.get(SYSTEM_HEADLESS).equals("1"); |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 174 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 175 | mHandler = new DisplayManagerHandler(mainHandler.getLooper()); |
| 176 | mUiHandler = uiHandler; |
| 177 | mDisplayAdapterListener = new DisplayAdapterListener(); |
| 178 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 179 | mHandler.sendEmptyMessage(MSG_REGISTER_DEFAULT_DISPLAY_ADAPTER); |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 180 | } |
| 181 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 182 | /** |
| 183 | * Pauses the boot process to wait for the first display to be initialized. |
| 184 | */ |
| 185 | public boolean waitForDefaultDisplay() { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 186 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 187 | long timeout = SystemClock.uptimeMillis() + WAIT_FOR_DEFAULT_DISPLAY_TIMEOUT; |
| 188 | while (mLogicalDisplays.get(Display.DEFAULT_DISPLAY) == null) { |
| 189 | long delay = timeout - SystemClock.uptimeMillis(); |
| 190 | if (delay <= 0) { |
| 191 | return false; |
| 192 | } |
| 193 | if (DEBUG) { |
| 194 | Slog.d(TAG, "waitForDefaultDisplay: waiting, timeout=" + delay); |
| 195 | } |
| 196 | try { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 197 | mSyncRoot.wait(delay); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 198 | } catch (InterruptedException ex) { |
| 199 | } |
| 200 | } |
| 201 | } |
| 202 | return true; |
| 203 | } |
| 204 | |
| 205 | /** |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 206 | * Called during initialization to associate the display manager with the |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 207 | * window manager. |
| 208 | */ |
| 209 | public void setWindowManager(WindowManagerFuncs windowManagerFuncs) { |
| 210 | synchronized (mSyncRoot) { |
| 211 | mWindowManagerFuncs = windowManagerFuncs; |
| 212 | scheduleTraversalLocked(); |
| 213 | } |
| 214 | } |
| 215 | |
| 216 | /** |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 217 | * Called during initialization to associate the display manager with the |
| 218 | * input manager. |
| 219 | */ |
| 220 | public void setInputManager(InputManagerFuncs inputManagerFuncs) { |
| 221 | synchronized (mSyncRoot) { |
| 222 | mInputManagerFuncs = inputManagerFuncs; |
| 223 | scheduleTraversalLocked(); |
| 224 | } |
| 225 | } |
| 226 | |
| 227 | /** |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 228 | * Called when the system is ready to go. |
| 229 | */ |
| 230 | public void systemReady(boolean safeMode, boolean onlyCore) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 231 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 232 | mSafeMode = safeMode; |
| 233 | mOnlyCore = onlyCore; |
| 234 | } |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 235 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 236 | mHandler.sendEmptyMessage(MSG_REGISTER_ADDITIONAL_DISPLAY_ADAPTERS); |
| 237 | } |
| 238 | |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 239 | /** |
| 240 | * Returns true if the device is headless. |
| 241 | * |
| 242 | * @return True if the device is headless. |
| 243 | */ |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 244 | public boolean isHeadless() { |
| 245 | return mHeadless; |
| 246 | } |
| 247 | |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 248 | /** |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 249 | * Overrides the display information of a particular logical display. |
| 250 | * This is used by the window manager to control the size and characteristics |
| 251 | * of the default display. It is expected to apply the requested change |
| 252 | * to the display information synchronously so that applications will immediately |
| 253 | * observe the new state. |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 254 | * |
Jeff Brown | 64a55af | 2012-08-26 02:47:39 -0700 | [diff] [blame] | 255 | * @param displayId The logical display id. |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 256 | * @param info The new data to be stored. |
Jeff Brown | 64a55af | 2012-08-26 02:47:39 -0700 | [diff] [blame] | 257 | */ |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 258 | public void setDisplayInfoOverrideFromWindowManager( |
| 259 | int displayId, DisplayInfo info) { |
| 260 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 261 | LogicalDisplay display = mLogicalDisplays.get(displayId); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 262 | if (display != null) { |
| 263 | mTempDisplayInfo.copyFrom(display.getDisplayInfoLocked()); |
| 264 | display.setDisplayInfoOverrideFromWindowManagerLocked(info); |
| 265 | if (!mTempDisplayInfo.equals(display.getDisplayInfoLocked())) { |
| 266 | sendDisplayEventLocked(displayId, DisplayManagerGlobal.EVENT_DISPLAY_CHANGED); |
| 267 | scheduleTraversalLocked(); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 268 | } |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 269 | } |
| 270 | } |
| 271 | } |
| 272 | |
| 273 | /** |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 274 | * Called by the window manager to perform traversals while holding a |
| 275 | * surface flinger transaction. |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 276 | */ |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 277 | public void performTraversalInTransactionFromWindowManager() { |
| 278 | synchronized (mSyncRoot) { |
| 279 | if (!mPendingTraversal) { |
| 280 | return; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 281 | } |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 282 | mPendingTraversal = false; |
| 283 | |
| 284 | performTraversalInTransactionLocked(); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 285 | } |
| 286 | } |
| 287 | |
| 288 | /** |
| 289 | * Returns information about the specified logical display. |
| 290 | * |
| 291 | * @param displayId The logical display id. |
Craig Mautner | 722285e | 2012-09-07 13:55:58 -0700 | [diff] [blame] | 292 | * @return The logical display info, or null if the display does not exist. The |
| 293 | * returned object must be treated as immutable. |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 294 | */ |
| 295 | @Override // Binder call |
| 296 | public DisplayInfo getDisplayInfo(int displayId) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 297 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 298 | LogicalDisplay display = mLogicalDisplays.get(displayId); |
| 299 | if (display != null) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 300 | return display.getDisplayInfoLocked(); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 301 | } |
| 302 | return null; |
| 303 | } |
| 304 | } |
| 305 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 306 | /** |
| 307 | * Returns the list of all display ids. |
| 308 | */ |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 309 | @Override // Binder call |
| 310 | public int[] getDisplayIds() { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 311 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 312 | final int count = mLogicalDisplays.size(); |
| 313 | int[] displayIds = new int[count]; |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 314 | for (int i = 0; i < count; i++) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 315 | displayIds[i] = mLogicalDisplays.keyAt(i); |
| 316 | } |
| 317 | return displayIds; |
| 318 | } |
| 319 | } |
| 320 | |
| 321 | @Override // Binder call |
| 322 | public void registerCallback(IDisplayManagerCallback callback) { |
| 323 | if (callback == null) { |
| 324 | throw new IllegalArgumentException("listener must not be null"); |
| 325 | } |
| 326 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 327 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 328 | int callingPid = Binder.getCallingPid(); |
| 329 | if (mCallbacks.get(callingPid) != null) { |
| 330 | throw new SecurityException("The calling process has already " |
| 331 | + "registered an IDisplayManagerCallback."); |
Jeff Brown | 64a55af | 2012-08-26 02:47:39 -0700 | [diff] [blame] | 332 | } |
| 333 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 334 | CallbackRecord record = new CallbackRecord(callingPid, callback); |
| 335 | try { |
| 336 | IBinder binder = callback.asBinder(); |
| 337 | binder.linkToDeath(record, 0); |
| 338 | } catch (RemoteException ex) { |
| 339 | // give up |
| 340 | throw new RuntimeException(ex); |
| 341 | } |
| 342 | |
| 343 | mCallbacks.put(callingPid, record); |
| 344 | } |
| 345 | } |
| 346 | |
| 347 | private void onCallbackDied(int pid) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 348 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 349 | mCallbacks.remove(pid); |
| 350 | } |
| 351 | } |
| 352 | |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 353 | @Override // Binder call |
| 354 | public void scanWifiDisplays() { |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 355 | final long token = Binder.clearCallingIdentity(); |
| 356 | try { |
| 357 | synchronized (mSyncRoot) { |
Jeff Brown | 21c7153 | 2012-09-09 13:26:55 -0700 | [diff] [blame] | 358 | if (mWifiDisplayAdapter != null) { |
| 359 | mWifiDisplayAdapter.requestScanLocked(); |
| 360 | } |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 361 | } |
| 362 | } finally { |
| 363 | Binder.restoreCallingIdentity(token); |
| 364 | } |
| 365 | } |
| 366 | |
| 367 | @Override // Binder call |
| 368 | public void connectWifiDisplay(String address) { |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 369 | if (address == null) { |
| 370 | throw new IllegalArgumentException("address must not be null"); |
| 371 | } |
| 372 | |
Jeff Brown | bc33545 | 2012-09-26 18:34:47 -0700 | [diff] [blame^] | 373 | final boolean trusted = canCallerConfigureWifiDisplay(); |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 374 | final long token = Binder.clearCallingIdentity(); |
| 375 | try { |
| 376 | synchronized (mSyncRoot) { |
Jeff Brown | 21c7153 | 2012-09-09 13:26:55 -0700 | [diff] [blame] | 377 | if (mWifiDisplayAdapter != null) { |
Jeff Brown | bc33545 | 2012-09-26 18:34:47 -0700 | [diff] [blame^] | 378 | mWifiDisplayAdapter.requestConnectLocked(address, trusted); |
Jeff Brown | 21c7153 | 2012-09-09 13:26:55 -0700 | [diff] [blame] | 379 | } |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 380 | } |
| 381 | } finally { |
| 382 | Binder.restoreCallingIdentity(token); |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | @Override // Binder call |
| 387 | public void disconnectWifiDisplay() { |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 388 | final long token = Binder.clearCallingIdentity(); |
| 389 | try { |
| 390 | synchronized (mSyncRoot) { |
Jeff Brown | 21c7153 | 2012-09-09 13:26:55 -0700 | [diff] [blame] | 391 | if (mWifiDisplayAdapter != null) { |
| 392 | mWifiDisplayAdapter.requestDisconnectLocked(); |
| 393 | } |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 394 | } |
| 395 | } finally { |
| 396 | Binder.restoreCallingIdentity(token); |
| 397 | } |
| 398 | } |
| 399 | |
| 400 | @Override // Binder call |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 401 | public void renameWifiDisplay(String address, String alias) { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 402 | if (address == null) { |
| 403 | throw new IllegalArgumentException("address must not be null"); |
| 404 | } |
Jeff Brown | bc33545 | 2012-09-26 18:34:47 -0700 | [diff] [blame^] | 405 | if (!canCallerConfigureWifiDisplay()) { |
| 406 | throw new SecurityException("Requires CONFIGURE_WIFI_DISPLAY permission to " |
| 407 | + "rename a wifi display."); |
| 408 | } |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 409 | |
| 410 | final long token = Binder.clearCallingIdentity(); |
| 411 | try { |
| 412 | synchronized (mSyncRoot) { |
| 413 | if (mWifiDisplayAdapter != null) { |
| 414 | mWifiDisplayAdapter.requestRenameLocked(address, alias); |
| 415 | } |
| 416 | } |
| 417 | } finally { |
| 418 | Binder.restoreCallingIdentity(token); |
| 419 | } |
| 420 | } |
| 421 | |
| 422 | @Override // Binder call |
| 423 | public void forgetWifiDisplay(String address) { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 424 | if (address == null) { |
| 425 | throw new IllegalArgumentException("address must not be null"); |
| 426 | } |
Jeff Brown | bc33545 | 2012-09-26 18:34:47 -0700 | [diff] [blame^] | 427 | if (!canCallerConfigureWifiDisplay()) { |
| 428 | throw new SecurityException("Requires CONFIGURE_WIFI_DISPLAY permission to " |
| 429 | + "forget a wifi display."); |
| 430 | } |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 431 | |
| 432 | final long token = Binder.clearCallingIdentity(); |
| 433 | try { |
| 434 | synchronized (mSyncRoot) { |
| 435 | if (mWifiDisplayAdapter != null) { |
| 436 | mWifiDisplayAdapter.requestForgetLocked(address); |
| 437 | } |
| 438 | } |
| 439 | } finally { |
| 440 | Binder.restoreCallingIdentity(token); |
| 441 | } |
| 442 | } |
| 443 | |
| 444 | @Override // Binder call |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 445 | public WifiDisplayStatus getWifiDisplayStatus() { |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 446 | final long token = Binder.clearCallingIdentity(); |
| 447 | try { |
| 448 | synchronized (mSyncRoot) { |
Jeff Brown | 21c7153 | 2012-09-09 13:26:55 -0700 | [diff] [blame] | 449 | if (mWifiDisplayAdapter != null) { |
| 450 | return mWifiDisplayAdapter.getWifiDisplayStatusLocked(); |
| 451 | } else { |
| 452 | return new WifiDisplayStatus(); |
| 453 | } |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 454 | } |
| 455 | } finally { |
| 456 | Binder.restoreCallingIdentity(token); |
| 457 | } |
| 458 | } |
| 459 | |
Jeff Brown | bc33545 | 2012-09-26 18:34:47 -0700 | [diff] [blame^] | 460 | private boolean canCallerConfigureWifiDisplay() { |
| 461 | return mContext.checkCallingPermission(android.Manifest.permission.CONFIGURE_WIFI_DISPLAY) |
| 462 | == PackageManager.PERMISSION_GRANTED; |
| 463 | } |
| 464 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 465 | private void registerDefaultDisplayAdapter() { |
| 466 | // Register default display adapter. |
| 467 | synchronized (mSyncRoot) { |
| 468 | if (mHeadless) { |
| 469 | registerDisplayAdapterLocked(new HeadlessDisplayAdapter( |
| 470 | mSyncRoot, mContext, mHandler, mDisplayAdapterListener)); |
| 471 | } else { |
| 472 | registerDisplayAdapterLocked(new LocalDisplayAdapter( |
| 473 | mSyncRoot, mContext, mHandler, mDisplayAdapterListener)); |
| 474 | } |
| 475 | } |
| 476 | } |
| 477 | |
| 478 | private void registerAdditionalDisplayAdapters() { |
| 479 | synchronized (mSyncRoot) { |
| 480 | if (shouldRegisterNonEssentialDisplayAdaptersLocked()) { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 481 | registerOverlayDisplayAdapterLocked(); |
| 482 | registerWifiDisplayAdapterLocked(); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 483 | } |
| 484 | } |
| 485 | } |
| 486 | |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 487 | private void registerOverlayDisplayAdapterLocked() { |
| 488 | registerDisplayAdapterLocked(new OverlayDisplayAdapter( |
| 489 | mSyncRoot, mContext, mHandler, mDisplayAdapterListener, mUiHandler)); |
| 490 | } |
| 491 | |
| 492 | private void registerWifiDisplayAdapterLocked() { |
| 493 | if (mContext.getResources().getBoolean( |
Jeff Brown | bbd28a2 | 2012-09-20 16:47:15 -0700 | [diff] [blame] | 494 | com.android.internal.R.bool.config_enableWifiDisplay) |
| 495 | || SystemProperties.getInt(FORCE_WIFI_DISPLAY_ENABLE, -1) == 1) { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 496 | mWifiDisplayAdapter = new WifiDisplayAdapter( |
| 497 | mSyncRoot, mContext, mHandler, mDisplayAdapterListener, |
| 498 | mPersistentDataStore); |
| 499 | registerDisplayAdapterLocked(mWifiDisplayAdapter); |
| 500 | } |
| 501 | } |
| 502 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 503 | private boolean shouldRegisterNonEssentialDisplayAdaptersLocked() { |
| 504 | // In safe mode, we disable non-essential display adapters to give the user |
| 505 | // an opportunity to fix broken settings or other problems that might affect |
| 506 | // system stability. |
| 507 | // In only-core mode, we disable non-essential display adapters to minimize |
| 508 | // the number of dependencies that are started while in this mode and to |
| 509 | // prevent problems that might occur due to the device being encrypted. |
| 510 | return !mSafeMode && !mOnlyCore; |
| 511 | } |
| 512 | |
| 513 | private void registerDisplayAdapterLocked(DisplayAdapter adapter) { |
| 514 | mDisplayAdapters.add(adapter); |
| 515 | adapter.registerLocked(); |
| 516 | } |
| 517 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 518 | private void handleDisplayDeviceAdded(DisplayDevice device) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 519 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 520 | if (mDisplayDevices.contains(device)) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 521 | Slog.w(TAG, "Attempted to add already added display device: " |
| 522 | + device.getDisplayDeviceInfoLocked()); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 523 | return; |
| 524 | } |
| 525 | |
Jeff Brown | e87bf03 | 2012-09-20 18:30:13 -0700 | [diff] [blame] | 526 | Slog.i(TAG, "Display device added: " + device.getDisplayDeviceInfoLocked()); |
| 527 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 528 | mDisplayDevices.add(device); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 529 | addLogicalDisplayLocked(device); |
| 530 | scheduleTraversalLocked(); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 531 | } |
| 532 | } |
| 533 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 534 | private void handleDisplayDeviceChanged(DisplayDevice device) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 535 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 536 | if (!mDisplayDevices.contains(device)) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 537 | Slog.w(TAG, "Attempted to change non-existent display device: " |
| 538 | + device.getDisplayDeviceInfoLocked()); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 539 | return; |
| 540 | } |
| 541 | |
Jeff Brown | e87bf03 | 2012-09-20 18:30:13 -0700 | [diff] [blame] | 542 | Slog.i(TAG, "Display device changed: " + device.getDisplayDeviceInfoLocked()); |
| 543 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 544 | device.applyPendingDisplayDeviceInfoChangesLocked(); |
| 545 | if (updateLogicalDisplaysLocked()) { |
| 546 | scheduleTraversalLocked(); |
Jeff Brown | 64a55af | 2012-08-26 02:47:39 -0700 | [diff] [blame] | 547 | } |
| 548 | } |
| 549 | } |
| 550 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 551 | private void handleDisplayDeviceRemoved(DisplayDevice device) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 552 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 553 | if (!mDisplayDevices.remove(device)) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 554 | Slog.w(TAG, "Attempted to remove non-existent display device: " |
| 555 | + device.getDisplayDeviceInfoLocked()); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 556 | return; |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 557 | } |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 558 | |
Jeff Brown | e87bf03 | 2012-09-20 18:30:13 -0700 | [diff] [blame] | 559 | Slog.i(TAG, "Display device removed: " + device.getDisplayDeviceInfoLocked()); |
| 560 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 561 | mRemovedDisplayDevices.add(device); |
| 562 | updateLogicalDisplaysLocked(); |
| 563 | scheduleTraversalLocked(); |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 564 | } |
| 565 | } |
| 566 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 567 | // Adds a new logical display based on the given display device. |
| 568 | // Sends notifications if needed. |
| 569 | private void addLogicalDisplayLocked(DisplayDevice device) { |
| 570 | DisplayDeviceInfo deviceInfo = device.getDisplayDeviceInfoLocked(); |
| 571 | boolean isDefault = (deviceInfo.flags |
| 572 | & DisplayDeviceInfo.FLAG_DEFAULT_DISPLAY) != 0; |
| 573 | if (isDefault && mLogicalDisplays.get(Display.DEFAULT_DISPLAY) != null) { |
| 574 | Slog.w(TAG, "Ignoring attempt to add a second default display: " + deviceInfo); |
| 575 | isDefault = false; |
| 576 | } |
| 577 | |
| 578 | final int displayId = assignDisplayIdLocked(isDefault); |
| 579 | final int layerStack = assignLayerStackLocked(displayId); |
| 580 | |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 581 | LogicalDisplay display = new LogicalDisplay(displayId, layerStack, device); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 582 | display.updateLocked(mDisplayDevices); |
| 583 | if (!display.isValidLocked()) { |
| 584 | // This should never happen currently. |
| 585 | Slog.w(TAG, "Ignoring display device because the logical display " |
| 586 | + "created from it was not considered valid: " + deviceInfo); |
| 587 | return; |
| 588 | } |
| 589 | |
| 590 | mLogicalDisplays.put(displayId, display); |
| 591 | |
| 592 | // Wake up waitForDefaultDisplay. |
| 593 | if (isDefault) { |
| 594 | mSyncRoot.notifyAll(); |
| 595 | } |
| 596 | |
| 597 | sendDisplayEventLocked(displayId, DisplayManagerGlobal.EVENT_DISPLAY_ADDED); |
| 598 | } |
| 599 | |
| 600 | private int assignDisplayIdLocked(boolean isDefault) { |
| 601 | return isDefault ? Display.DEFAULT_DISPLAY : mNextNonDefaultDisplayId++; |
| 602 | } |
| 603 | |
| 604 | private int assignLayerStackLocked(int displayId) { |
| 605 | // Currently layer stacks and display ids are the same. |
| 606 | // This need not be the case. |
| 607 | return displayId; |
| 608 | } |
| 609 | |
| 610 | // Updates all existing logical displays given the current set of display devices. |
| 611 | // Removes invalid logical displays. |
| 612 | // Sends notifications if needed. |
| 613 | private boolean updateLogicalDisplaysLocked() { |
| 614 | boolean changed = false; |
| 615 | for (int i = mLogicalDisplays.size(); i-- > 0; ) { |
| 616 | final int displayId = mLogicalDisplays.keyAt(i); |
| 617 | LogicalDisplay display = mLogicalDisplays.valueAt(i); |
| 618 | |
| 619 | mTempDisplayInfo.copyFrom(display.getDisplayInfoLocked()); |
| 620 | display.updateLocked(mDisplayDevices); |
| 621 | if (!display.isValidLocked()) { |
| 622 | mLogicalDisplays.removeAt(i); |
| 623 | sendDisplayEventLocked(displayId, DisplayManagerGlobal.EVENT_DISPLAY_REMOVED); |
| 624 | changed = true; |
| 625 | } else if (!mTempDisplayInfo.equals(display.getDisplayInfoLocked())) { |
| 626 | sendDisplayEventLocked(displayId, DisplayManagerGlobal.EVENT_DISPLAY_CHANGED); |
| 627 | changed = true; |
| 628 | } |
| 629 | } |
| 630 | return changed; |
| 631 | } |
| 632 | |
| 633 | private void performTraversalInTransactionLocked() { |
| 634 | // Perform one last traversal for each removed display device. |
| 635 | final int removedCount = mRemovedDisplayDevices.size(); |
| 636 | for (int i = 0; i < removedCount; i++) { |
| 637 | DisplayDevice device = mRemovedDisplayDevices.get(i); |
| 638 | device.performTraversalInTransactionLocked(); |
| 639 | } |
| 640 | mRemovedDisplayDevices.clear(); |
| 641 | |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 642 | // Clear all viewports before configuring displays so that we can keep |
| 643 | // track of which ones we have configured. |
| 644 | clearViewportsLocked(); |
| 645 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 646 | // Configure each display device. |
| 647 | final int count = mDisplayDevices.size(); |
| 648 | for (int i = 0; i < count; i++) { |
| 649 | DisplayDevice device = mDisplayDevices.get(i); |
| 650 | configureDisplayInTransactionLocked(device); |
| 651 | device.performTraversalInTransactionLocked(); |
| 652 | } |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 653 | |
| 654 | // Tell the input system about these new viewports. |
| 655 | if (mInputManagerFuncs != null) { |
| 656 | mHandler.sendEmptyMessage(MSG_UPDATE_VIEWPORT); |
| 657 | } |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 658 | } |
| 659 | |
Craig Mautner | 722285e | 2012-09-07 13:55:58 -0700 | [diff] [blame] | 660 | /** |
| 661 | * Tells the display manager whether there is interesting unique content on the |
| 662 | * specified logical display. This is used to control automatic mirroring. |
| 663 | * <p> |
| 664 | * If the display has unique content, then the display manager arranges for it |
| 665 | * to be presented on a physical display if appropriate. Otherwise, the display manager |
| 666 | * may choose to make the physical display mirror some other logical display. |
| 667 | * </p> |
| 668 | * |
| 669 | * @param displayId The logical display id to update. |
| 670 | * @param hasContent True if the logical display has content. |
| 671 | */ |
| 672 | public void setDisplayHasContent(int displayId, boolean hasContent) { |
| 673 | synchronized (mSyncRoot) { |
| 674 | LogicalDisplay display = mLogicalDisplays.get(displayId); |
| 675 | if (display != null && display.hasContentLocked() != hasContent) { |
| 676 | display.setHasContentLocked(hasContent); |
| 677 | scheduleTraversalLocked(); |
| 678 | } |
| 679 | } |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 680 | } |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 681 | |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 682 | private void clearViewportsLocked() { |
| 683 | mDefaultViewport.valid = false; |
| 684 | mExternalTouchViewport.valid = false; |
Craig Mautner | 722285e | 2012-09-07 13:55:58 -0700 | [diff] [blame] | 685 | } |
| 686 | |
| 687 | private void configureDisplayInTransactionLocked(DisplayDevice device) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 688 | // Find the logical display that the display device is showing. |
Craig Mautner | 722285e | 2012-09-07 13:55:58 -0700 | [diff] [blame] | 689 | LogicalDisplay display = findLogicalDisplayForDeviceLocked(device); |
| 690 | if (display != null && !display.hasContentLocked()) { |
| 691 | display = null; |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 692 | } |
| 693 | if (display == null) { |
| 694 | display = mLogicalDisplays.get(Display.DEFAULT_DISPLAY); |
| 695 | } |
| 696 | |
| 697 | // Apply the logical display configuration to the display device. |
| 698 | if (display == null) { |
| 699 | // TODO: no logical display for the device, blank it |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 700 | Slog.w(TAG, "Missing logical display to use for physical display device: " |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 701 | + device.getDisplayDeviceInfoLocked()); |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 702 | return; |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 703 | } else { |
| 704 | display.configureDisplayInTransactionLocked(device); |
| 705 | } |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 706 | |
| 707 | // Update the viewports if needed. |
| 708 | DisplayDeviceInfo info = device.getDisplayDeviceInfoLocked(); |
| 709 | if (!mDefaultViewport.valid |
| 710 | && (info.flags & DisplayDeviceInfo.FLAG_DEFAULT_DISPLAY) != 0) { |
| 711 | setViewportLocked(mDefaultViewport, display, device); |
| 712 | } |
| 713 | if (!mExternalTouchViewport.valid |
| 714 | && info.touch == DisplayDeviceInfo.TOUCH_EXTERNAL) { |
| 715 | setViewportLocked(mExternalTouchViewport, display, device); |
| 716 | } |
| 717 | } |
| 718 | |
| 719 | private static void setViewportLocked(DisplayViewport viewport, |
| 720 | LogicalDisplay display, DisplayDevice device) { |
| 721 | viewport.valid = true; |
| 722 | viewport.displayId = display.getDisplayIdLocked(); |
| 723 | device.populateViewportLocked(viewport); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 724 | } |
| 725 | |
| 726 | private LogicalDisplay findLogicalDisplayForDeviceLocked(DisplayDevice device) { |
| 727 | final int count = mLogicalDisplays.size(); |
| 728 | for (int i = 0; i < count; i++) { |
| 729 | LogicalDisplay display = mLogicalDisplays.valueAt(i); |
| 730 | if (display.getPrimaryDisplayDeviceLocked() == device) { |
| 731 | return display; |
| 732 | } |
| 733 | } |
| 734 | return null; |
| 735 | } |
| 736 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 737 | private void sendDisplayEventLocked(int displayId, int event) { |
| 738 | Message msg = mHandler.obtainMessage(MSG_DELIVER_DISPLAY_EVENT, displayId, event); |
| 739 | mHandler.sendMessage(msg); |
| 740 | } |
| 741 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 742 | // Requests that performTraversalsInTransactionFromWindowManager be called at a |
| 743 | // later time to apply changes to surfaces and displays. |
| 744 | private void scheduleTraversalLocked() { |
| 745 | if (!mPendingTraversal && mWindowManagerFuncs != null) { |
| 746 | mPendingTraversal = true; |
| 747 | mHandler.sendEmptyMessage(MSG_REQUEST_TRAVERSAL); |
| 748 | } |
| 749 | } |
| 750 | |
| 751 | // Runs on Handler thread. |
| 752 | // Delivers display event notifications to callbacks. |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 753 | private void deliverDisplayEvent(int displayId, int event) { |
| 754 | if (DEBUG) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 755 | Slog.d(TAG, "Delivering display event: displayId=" |
| 756 | + displayId + ", event=" + event); |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 757 | } |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 758 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 759 | // Grab the lock and copy the callbacks. |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 760 | final int count; |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 761 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 762 | count = mCallbacks.size(); |
| 763 | mTempCallbacks.clear(); |
| 764 | for (int i = 0; i < count; i++) { |
| 765 | mTempCallbacks.add(mCallbacks.valueAt(i)); |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 766 | } |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 767 | } |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 768 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 769 | // After releasing the lock, send the notifications out. |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 770 | for (int i = 0; i < count; i++) { |
| 771 | mTempCallbacks.get(i).notifyDisplayEventAsync(displayId, event); |
| 772 | } |
| 773 | mTempCallbacks.clear(); |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 774 | } |
| 775 | |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 776 | @Override // Binder call |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 777 | public void dump(FileDescriptor fd, final PrintWriter pw, String[] args) { |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 778 | if (mContext == null |
| 779 | || mContext.checkCallingOrSelfPermission(Manifest.permission.DUMP) |
| 780 | != PackageManager.PERMISSION_GRANTED) { |
| 781 | pw.println("Permission Denial: can't dump DisplayManager from from pid=" |
| 782 | + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()); |
| 783 | return; |
| 784 | } |
| 785 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 786 | pw.println("DISPLAY MANAGER (dumpsys display)"); |
| 787 | pw.println(" mHeadless=" + mHeadless); |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 788 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 789 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 790 | IndentingPrintWriter ipw = new IndentingPrintWriter(pw, " "); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 791 | ipw.increaseIndent(); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 792 | |
| 793 | pw.println(); |
| 794 | pw.println("Display Adapters: size=" + mDisplayAdapters.size()); |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 795 | for (DisplayAdapter adapter : mDisplayAdapters) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 796 | pw.println(" " + adapter.getName()); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 797 | adapter.dumpLocked(ipw); |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 798 | } |
Craig Mautner | 9de4936 | 2012-08-02 14:30:30 -0700 | [diff] [blame] | 799 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 800 | pw.println(); |
| 801 | pw.println("Display Devices: size=" + mDisplayDevices.size()); |
| 802 | for (DisplayDevice device : mDisplayDevices) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 803 | pw.println(" " + device.getDisplayDeviceInfoLocked()); |
| 804 | device.dumpLocked(ipw); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 805 | } |
| 806 | |
| 807 | final int logicalDisplayCount = mLogicalDisplays.size(); |
| 808 | pw.println(); |
| 809 | pw.println("Logical Displays: size=" + logicalDisplayCount); |
| 810 | for (int i = 0; i < logicalDisplayCount; i++) { |
| 811 | int displayId = mLogicalDisplays.keyAt(i); |
| 812 | LogicalDisplay display = mLogicalDisplays.valueAt(i); |
| 813 | pw.println(" Display " + displayId + ":"); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 814 | display.dumpLocked(ipw); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 815 | } |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 816 | |
| 817 | pw.println(); |
| 818 | pw.println("Default viewport: " + mDefaultViewport); |
| 819 | pw.println("External touch viewport: " + mExternalTouchViewport); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 820 | } |
| 821 | } |
| 822 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 823 | /** |
| 824 | * This is the object that everything in the display manager locks on. |
| 825 | * We make it an inner class within the {@link DisplayManagerService} to so that it is |
| 826 | * clear that the object belongs to the display manager service and that it is |
| 827 | * a unique object with a special purpose. |
| 828 | */ |
| 829 | public static final class SyncRoot { |
| 830 | } |
| 831 | |
| 832 | /** |
| 833 | * Private interface to the window manager. |
| 834 | */ |
| 835 | public interface WindowManagerFuncs { |
| 836 | /** |
Craig Mautner | 722285e | 2012-09-07 13:55:58 -0700 | [diff] [blame] | 837 | * Request that the window manager call |
| 838 | * {@link #performTraversalInTransactionFromWindowManager} within a surface |
| 839 | * transaction at a later time. |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 840 | */ |
| 841 | void requestTraversal(); |
| 842 | } |
| 843 | |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 844 | /** |
| 845 | * Private interface to the input manager. |
| 846 | */ |
| 847 | public interface InputManagerFuncs { |
| 848 | /** |
| 849 | * Sets information about the displays as needed by the input system. |
| 850 | * The input system should copy this information if required. |
| 851 | */ |
| 852 | void setDisplayViewports(DisplayViewport defaultViewport, |
| 853 | DisplayViewport externalTouchViewport); |
| 854 | } |
| 855 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 856 | private final class DisplayManagerHandler extends Handler { |
| 857 | public DisplayManagerHandler(Looper looper) { |
| 858 | super(looper, null, true /*async*/); |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 859 | } |
Jeff Brown | bf5740e | 2012-08-19 23:20:02 -0700 | [diff] [blame] | 860 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 861 | @Override |
| 862 | public void handleMessage(Message msg) { |
| 863 | switch (msg.what) { |
| 864 | case MSG_REGISTER_DEFAULT_DISPLAY_ADAPTER: |
| 865 | registerDefaultDisplayAdapter(); |
| 866 | break; |
| 867 | |
| 868 | case MSG_REGISTER_ADDITIONAL_DISPLAY_ADAPTERS: |
| 869 | registerAdditionalDisplayAdapters(); |
| 870 | break; |
| 871 | |
| 872 | case MSG_DELIVER_DISPLAY_EVENT: |
| 873 | deliverDisplayEvent(msg.arg1, msg.arg2); |
| 874 | break; |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 875 | |
| 876 | case MSG_REQUEST_TRAVERSAL: |
| 877 | mWindowManagerFuncs.requestTraversal(); |
| 878 | break; |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 879 | |
| 880 | case MSG_UPDATE_VIEWPORT: { |
| 881 | synchronized (mSyncRoot) { |
| 882 | mTempDefaultViewport.copyFrom(mDefaultViewport); |
| 883 | mTempExternalTouchViewport.copyFrom(mExternalTouchViewport); |
| 884 | } |
| 885 | mInputManagerFuncs.setDisplayViewports( |
| 886 | mTempDefaultViewport, mTempExternalTouchViewport); |
| 887 | break; |
| 888 | } |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 889 | } |
| 890 | } |
| 891 | } |
| 892 | |
| 893 | private final class DisplayAdapterListener implements DisplayAdapter.Listener { |
| 894 | @Override |
| 895 | public void onDisplayDeviceEvent(DisplayDevice device, int event) { |
| 896 | switch (event) { |
| 897 | case DisplayAdapter.DISPLAY_DEVICE_EVENT_ADDED: |
| 898 | handleDisplayDeviceAdded(device); |
| 899 | break; |
| 900 | |
| 901 | case DisplayAdapter.DISPLAY_DEVICE_EVENT_CHANGED: |
| 902 | handleDisplayDeviceChanged(device); |
| 903 | break; |
| 904 | |
| 905 | case DisplayAdapter.DISPLAY_DEVICE_EVENT_REMOVED: |
| 906 | handleDisplayDeviceRemoved(device); |
| 907 | break; |
| 908 | } |
| 909 | } |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 910 | |
| 911 | @Override |
| 912 | public void onTraversalRequested() { |
| 913 | synchronized (mSyncRoot) { |
| 914 | scheduleTraversalLocked(); |
| 915 | } |
| 916 | } |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 917 | } |
| 918 | |
| 919 | private final class CallbackRecord implements DeathRecipient { |
| 920 | private final int mPid; |
| 921 | private final IDisplayManagerCallback mCallback; |
| 922 | |
| 923 | public CallbackRecord(int pid, IDisplayManagerCallback callback) { |
| 924 | mPid = pid; |
| 925 | mCallback = callback; |
| 926 | } |
| 927 | |
| 928 | @Override |
| 929 | public void binderDied() { |
| 930 | if (DEBUG) { |
| 931 | Slog.d(TAG, "Display listener for pid " + mPid + " died."); |
| 932 | } |
| 933 | onCallbackDied(mPid); |
| 934 | } |
| 935 | |
| 936 | public void notifyDisplayEventAsync(int displayId, int event) { |
| 937 | try { |
| 938 | mCallback.onDisplayEvent(displayId, event); |
| 939 | } catch (RemoteException ex) { |
| 940 | Slog.w(TAG, "Failed to notify process " |
| 941 | + mPid + " that displays changed, assuming it died.", ex); |
| 942 | binderDied(); |
| 943 | } |
| 944 | } |
| 945 | } |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 946 | } |