| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.display; |
| |
| import android.content.res.Resources; |
| import android.os.Build; |
| import com.android.server.LocalServices; |
| import com.android.server.lights.Light; |
| import com.android.server.lights.LightsManager; |
| |
| import android.content.Context; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Looper; |
| import android.os.PowerManager; |
| import android.os.SystemProperties; |
| import android.os.Trace; |
| import android.util.Slog; |
| import android.util.SparseArray; |
| import android.util.SparseBooleanArray; |
| import android.view.Display; |
| import android.view.DisplayEventReceiver; |
| import android.view.Surface; |
| import android.view.SurfaceControl; |
| |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| |
| /** |
| * A display adapter for the local displays managed by Surface Flinger. |
| * <p> |
| * Display adapters are guarded by the {@link DisplayManagerService.SyncRoot} lock. |
| * </p> |
| */ |
| final class LocalDisplayAdapter extends DisplayAdapter { |
| private static final String TAG = "LocalDisplayAdapter"; |
| private static final boolean DEBUG = false; |
| |
| private static final String UNIQUE_ID_PREFIX = "local:"; |
| |
| private static final String PROPERTY_EMULATOR_CIRCULAR = "ro.emulator.circular"; |
| |
| private static final int[] BUILT_IN_DISPLAY_IDS_TO_SCAN = new int[] { |
| SurfaceControl.BUILT_IN_DISPLAY_ID_MAIN, |
| SurfaceControl.BUILT_IN_DISPLAY_ID_HDMI, |
| }; |
| |
| private final SparseArray<LocalDisplayDevice> mDevices = |
| new SparseArray<LocalDisplayDevice>(); |
| @SuppressWarnings("unused") // Becomes active at instantiation time. |
| private HotplugDisplayEventReceiver mHotplugReceiver; |
| |
| // Called with SyncRoot lock held. |
| public LocalDisplayAdapter(DisplayManagerService.SyncRoot syncRoot, |
| Context context, Handler handler, Listener listener) { |
| super(syncRoot, context, handler, listener, TAG); |
| } |
| |
| @Override |
| public void registerLocked() { |
| super.registerLocked(); |
| |
| mHotplugReceiver = new HotplugDisplayEventReceiver(getHandler().getLooper()); |
| |
| for (int builtInDisplayId : BUILT_IN_DISPLAY_IDS_TO_SCAN) { |
| tryConnectDisplayLocked(builtInDisplayId); |
| } |
| } |
| |
| private void tryConnectDisplayLocked(int builtInDisplayId) { |
| IBinder displayToken = SurfaceControl.getBuiltInDisplay(builtInDisplayId); |
| if (displayToken != null) { |
| SurfaceControl.PhysicalDisplayInfo[] configs = |
| SurfaceControl.getDisplayConfigs(displayToken); |
| if (configs == null) { |
| // There are no valid configs for this device, so we can't use it |
| Slog.w(TAG, "No valid configs found for display device " + |
| builtInDisplayId); |
| return; |
| } |
| int activeConfig = SurfaceControl.getActiveConfig(displayToken); |
| if (activeConfig < 0) { |
| // There is no active config, and for now we don't have the |
| // policy to set one. |
| Slog.w(TAG, "No active config found for display device " + |
| builtInDisplayId); |
| return; |
| } |
| LocalDisplayDevice device = mDevices.get(builtInDisplayId); |
| if (device == null) { |
| // Display was added. |
| device = new LocalDisplayDevice(displayToken, builtInDisplayId, |
| configs, activeConfig); |
| mDevices.put(builtInDisplayId, device); |
| sendDisplayDeviceEventLocked(device, DISPLAY_DEVICE_EVENT_ADDED); |
| } else if (device.updatePhysicalDisplayInfoLocked(configs, activeConfig)) { |
| // Display properties changed. |
| sendDisplayDeviceEventLocked(device, DISPLAY_DEVICE_EVENT_CHANGED); |
| } |
| } else { |
| // The display is no longer available. Ignore the attempt to add it. |
| // If it was connected but has already been disconnected, we'll get a |
| // disconnect event that will remove it from mDevices. |
| } |
| } |
| |
| private void tryDisconnectDisplayLocked(int builtInDisplayId) { |
| LocalDisplayDevice device = mDevices.get(builtInDisplayId); |
| if (device != null) { |
| // Display was removed. |
| mDevices.remove(builtInDisplayId); |
| sendDisplayDeviceEventLocked(device, DISPLAY_DEVICE_EVENT_REMOVED); |
| } |
| } |
| |
| static int getPowerModeForState(int state) { |
| switch (state) { |
| case Display.STATE_OFF: |
| return SurfaceControl.POWER_MODE_OFF; |
| case Display.STATE_DOZE: |
| return SurfaceControl.POWER_MODE_DOZE; |
| case Display.STATE_DOZE_SUSPEND: |
| return SurfaceControl.POWER_MODE_DOZE_SUSPEND; |
| default: |
| return SurfaceControl.POWER_MODE_NORMAL; |
| } |
| } |
| |
| private final class LocalDisplayDevice extends DisplayDevice { |
| private final int mBuiltInDisplayId; |
| private final Light mBacklight; |
| private final SparseArray<DisplayModeRecord> mSupportedModes = new SparseArray<>(); |
| private final SparseArray<Display.ColorTransform> mSupportedColorTransforms = |
| new SparseArray<>(); |
| |
| private DisplayDeviceInfo mInfo; |
| private boolean mHavePendingChanges; |
| private int mState = Display.STATE_UNKNOWN; |
| private int mBrightness = PowerManager.BRIGHTNESS_DEFAULT; |
| private int mActivePhysIndex; |
| private int mDefaultModeId; |
| private int mActiveModeId; |
| private boolean mActiveModeInvalid; |
| private int mDefaultColorTransformId; |
| private int mActiveColorTransformId; |
| private boolean mActiveColorTransformInvalid; |
| |
| private SurfaceControl.PhysicalDisplayInfo mDisplayInfos[]; |
| |
| public LocalDisplayDevice(IBinder displayToken, int builtInDisplayId, |
| SurfaceControl.PhysicalDisplayInfo[] physicalDisplayInfos, int activeDisplayInfo) { |
| super(LocalDisplayAdapter.this, displayToken, UNIQUE_ID_PREFIX + builtInDisplayId); |
| mBuiltInDisplayId = builtInDisplayId; |
| updatePhysicalDisplayInfoLocked(physicalDisplayInfos, activeDisplayInfo); |
| if (mBuiltInDisplayId == SurfaceControl.BUILT_IN_DISPLAY_ID_MAIN) { |
| LightsManager lights = LocalServices.getService(LightsManager.class); |
| mBacklight = lights.getLight(LightsManager.LIGHT_ID_BACKLIGHT); |
| } else { |
| mBacklight = null; |
| } |
| } |
| |
| public boolean updatePhysicalDisplayInfoLocked( |
| SurfaceControl.PhysicalDisplayInfo[] physicalDisplayInfos, int activeDisplayInfo) { |
| mDisplayInfos = Arrays.copyOf(physicalDisplayInfos, physicalDisplayInfos.length); |
| mActivePhysIndex = activeDisplayInfo; |
| ArrayList<Display.ColorTransform> colorTransforms = new ArrayList<>(); |
| |
| // Build an updated list of all existing color transforms. |
| boolean colorTransformsAdded = false; |
| Display.ColorTransform activeColorTransform = null; |
| for (int i = 0; i < physicalDisplayInfos.length; i++) { |
| SurfaceControl.PhysicalDisplayInfo info = physicalDisplayInfos[i]; |
| // First check to see if we've already added this color transform |
| boolean existingMode = false; |
| for (int j = 0; j < colorTransforms.size(); j++) { |
| if (colorTransforms.get(j).getColorTransform() == info.colorTransform) { |
| existingMode = true; |
| break; |
| } |
| } |
| if (existingMode) { |
| continue; |
| } |
| Display.ColorTransform colorTransform = findColorTransform(info); |
| if (colorTransform == null) { |
| colorTransform = createColorTransform(info.colorTransform); |
| colorTransformsAdded = true; |
| } |
| colorTransforms.add(colorTransform); |
| if (i == activeDisplayInfo) { |
| activeColorTransform = colorTransform; |
| } |
| } |
| |
| // Build an updated list of all existing modes. |
| ArrayList<DisplayModeRecord> records = new ArrayList<DisplayModeRecord>(); |
| boolean modesAdded = false; |
| for (int i = 0; i < physicalDisplayInfos.length; i++) { |
| SurfaceControl.PhysicalDisplayInfo info = physicalDisplayInfos[i]; |
| // First, check to see if we've already added a matching mode. Since not all |
| // configuration options are exposed via Display.Mode, it's possible that we have |
| // multiple PhysicalDisplayInfos that would generate the same Display.Mode. |
| boolean existingMode = false; |
| for (int j = 0; j < records.size(); j++) { |
| if (records.get(j).hasMatchingMode(info)) { |
| existingMode = true; |
| break; |
| } |
| } |
| if (existingMode) { |
| continue; |
| } |
| // If we haven't already added a mode for this configuration to the new set of |
| // supported modes then check to see if we have one in the prior set of supported |
| // modes to reuse. |
| DisplayModeRecord record = findDisplayModeRecord(info); |
| if (record == null) { |
| record = new DisplayModeRecord(info); |
| modesAdded = true; |
| } |
| records.add(record); |
| } |
| |
| // Get the currently active mode |
| DisplayModeRecord activeRecord = null; |
| for (int i = 0; i < records.size(); i++) { |
| DisplayModeRecord record = records.get(i); |
| if (record.hasMatchingMode(physicalDisplayInfos[activeDisplayInfo])){ |
| activeRecord = record; |
| break; |
| } |
| } |
| // Check whether surface flinger spontaneously changed modes out from under us. Schedule |
| // traversals to ensure that the correct state is reapplied if necessary. |
| if (mActiveModeId != 0 |
| && mActiveModeId != activeRecord.mMode.getModeId()) { |
| mActiveModeInvalid = true; |
| sendTraversalRequestLocked(); |
| } |
| // Check whether surface flinger spontaneously changed color transforms out from under |
| // us. |
| if (mActiveColorTransformId != 0 |
| && mActiveColorTransformId != activeColorTransform.getId()) { |
| mActiveColorTransformInvalid = true; |
| sendTraversalRequestLocked(); |
| } |
| |
| boolean colorTransformsChanged = |
| colorTransforms.size() != mSupportedColorTransforms.size() |
| || colorTransformsAdded; |
| boolean recordsChanged = records.size() != mSupportedModes.size() || modesAdded; |
| // If neither the records nor the supported color transforms have changed then we're |
| // done here. |
| if (!recordsChanged && !colorTransformsChanged) { |
| return false; |
| } |
| // Update the index of modes. |
| mHavePendingChanges = true; |
| |
| mSupportedModes.clear(); |
| for (DisplayModeRecord record : records) { |
| mSupportedModes.put(record.mMode.getModeId(), record); |
| } |
| mSupportedColorTransforms.clear(); |
| for (Display.ColorTransform colorTransform : colorTransforms) { |
| mSupportedColorTransforms.put(colorTransform.getId(), colorTransform); |
| } |
| |
| // Update the default mode and color transform if needed. This needs to be done in |
| // tandem so we always have a default state to fall back to. |
| if (findDisplayInfoIndexLocked(mDefaultColorTransformId, mDefaultModeId) < 0) { |
| if (mDefaultModeId != 0) { |
| Slog.w(TAG, "Default display mode no longer available, using currently" |
| + " active mode as default."); |
| } |
| mDefaultModeId = activeRecord.mMode.getModeId(); |
| if (mDefaultColorTransformId != 0) { |
| Slog.w(TAG, "Default color transform no longer available, using currently" |
| + " active color transform as default"); |
| } |
| mDefaultColorTransformId = activeColorTransform.getId(); |
| } |
| // Determine whether the active mode is still there. |
| if (mSupportedModes.indexOfKey(mActiveModeId) < 0) { |
| if (mActiveModeId != 0) { |
| Slog.w(TAG, "Active display mode no longer available, reverting to default" |
| + " mode."); |
| } |
| mActiveModeId = mDefaultModeId; |
| mActiveModeInvalid = true; |
| } |
| |
| // Determine whether the active color transform is still there. |
| if (mSupportedColorTransforms.indexOfKey(mActiveColorTransformId) < 0) { |
| if (mActiveColorTransformId != 0) { |
| Slog.w(TAG, "Active color transform no longer available, reverting" |
| + " to default transform."); |
| } |
| mActiveColorTransformId = mDefaultColorTransformId; |
| mActiveColorTransformInvalid = true; |
| } |
| // Schedule traversals so that we apply pending changes. |
| sendTraversalRequestLocked(); |
| return true; |
| } |
| |
| private DisplayModeRecord findDisplayModeRecord(SurfaceControl.PhysicalDisplayInfo info) { |
| for (int i = 0; i < mSupportedModes.size(); i++) { |
| DisplayModeRecord record = mSupportedModes.valueAt(i); |
| if (record.hasMatchingMode(info)) { |
| return record; |
| } |
| } |
| return null; |
| } |
| |
| private Display.ColorTransform findColorTransform(SurfaceControl.PhysicalDisplayInfo info) { |
| for (int i = 0; i < mSupportedColorTransforms.size(); i++) { |
| Display.ColorTransform transform = mSupportedColorTransforms.valueAt(i); |
| if (transform.getColorTransform() == info.colorTransform) { |
| return transform; |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public void applyPendingDisplayDeviceInfoChangesLocked() { |
| if (mHavePendingChanges) { |
| mInfo = null; |
| mHavePendingChanges = false; |
| } |
| } |
| |
| @Override |
| public DisplayDeviceInfo getDisplayDeviceInfoLocked() { |
| if (mInfo == null) { |
| SurfaceControl.PhysicalDisplayInfo phys = mDisplayInfos[mActivePhysIndex]; |
| mInfo = new DisplayDeviceInfo(); |
| mInfo.width = phys.width; |
| mInfo.height = phys.height; |
| mInfo.modeId = mActiveModeId; |
| mInfo.defaultModeId = mDefaultModeId; |
| mInfo.supportedModes = new Display.Mode[mSupportedModes.size()]; |
| for (int i = 0; i < mSupportedModes.size(); i++) { |
| DisplayModeRecord record = mSupportedModes.valueAt(i); |
| mInfo.supportedModes[i] = record.mMode; |
| } |
| mInfo.colorTransformId = mActiveColorTransformId; |
| mInfo.defaultColorTransformId = mDefaultColorTransformId; |
| mInfo.supportedColorTransforms = |
| new Display.ColorTransform[mSupportedColorTransforms.size()]; |
| for (int i = 0; i < mSupportedColorTransforms.size(); i++) { |
| mInfo.supportedColorTransforms[i] = mSupportedColorTransforms.valueAt(i); |
| } |
| mInfo.appVsyncOffsetNanos = phys.appVsyncOffsetNanos; |
| mInfo.presentationDeadlineNanos = phys.presentationDeadlineNanos; |
| mInfo.state = mState; |
| mInfo.uniqueId = getUniqueId(); |
| |
| // Assume that all built-in displays that have secure output (eg. HDCP) also |
| // support compositing from gralloc protected buffers. |
| if (phys.secure) { |
| mInfo.flags = DisplayDeviceInfo.FLAG_SECURE |
| | DisplayDeviceInfo.FLAG_SUPPORTS_PROTECTED_BUFFERS; |
| } |
| |
| if (mBuiltInDisplayId == SurfaceControl.BUILT_IN_DISPLAY_ID_MAIN) { |
| final Resources res = getContext().getResources(); |
| mInfo.name = res.getString( |
| com.android.internal.R.string.display_manager_built_in_display_name); |
| mInfo.flags |= DisplayDeviceInfo.FLAG_DEFAULT_DISPLAY |
| | DisplayDeviceInfo.FLAG_ROTATES_WITH_CONTENT; |
| if (res.getBoolean(com.android.internal.R.bool.config_mainBuiltInDisplayIsRound) |
| || (Build.HARDWARE.contains("goldfish") |
| && SystemProperties.getBoolean(PROPERTY_EMULATOR_CIRCULAR, false))) { |
| mInfo.flags |= DisplayDeviceInfo.FLAG_ROUND; |
| } |
| mInfo.type = Display.TYPE_BUILT_IN; |
| mInfo.densityDpi = (int)(phys.density * 160 + 0.5f); |
| mInfo.xDpi = phys.xDpi; |
| mInfo.yDpi = phys.yDpi; |
| mInfo.touch = DisplayDeviceInfo.TOUCH_INTERNAL; |
| } else { |
| mInfo.type = Display.TYPE_HDMI; |
| mInfo.flags |= DisplayDeviceInfo.FLAG_PRESENTATION; |
| mInfo.name = getContext().getResources().getString( |
| com.android.internal.R.string.display_manager_hdmi_display_name); |
| mInfo.touch = DisplayDeviceInfo.TOUCH_EXTERNAL; |
| mInfo.setAssumedDensityForExternalDisplay(phys.width, phys.height); |
| |
| // For demonstration purposes, allow rotation of the external display. |
| // In the future we might allow the user to configure this directly. |
| if ("portrait".equals(SystemProperties.get("persist.demo.hdmirotation"))) { |
| mInfo.rotation = Surface.ROTATION_270; |
| } |
| |
| // For demonstration purposes, allow rotation of the external display |
| // to follow the built-in display. |
| if (SystemProperties.getBoolean("persist.demo.hdmirotates", false)) { |
| mInfo.flags |= DisplayDeviceInfo.FLAG_ROTATES_WITH_CONTENT; |
| } |
| } |
| } |
| return mInfo; |
| } |
| |
| @Override |
| public Runnable requestDisplayStateLocked(final int state, final int brightness) { |
| // Assume that the brightness is off if the display is being turned off. |
| assert state != Display.STATE_OFF || brightness == PowerManager.BRIGHTNESS_OFF; |
| |
| final boolean stateChanged = (mState != state); |
| final boolean brightnessChanged = (mBrightness != brightness) && mBacklight != null; |
| if (stateChanged || brightnessChanged) { |
| final int displayId = mBuiltInDisplayId; |
| final IBinder token = getDisplayTokenLocked(); |
| final int oldState = mState; |
| |
| if (stateChanged) { |
| mState = state; |
| updateDeviceInfoLocked(); |
| } |
| |
| if (brightnessChanged) { |
| mBrightness = brightness; |
| } |
| |
| // Defer actually setting the display state until after we have exited |
| // the critical section since it can take hundreds of milliseconds |
| // to complete. |
| return new Runnable() { |
| @Override |
| public void run() { |
| // Exit a suspended state before making any changes. |
| int currentState = oldState; |
| if (Display.isSuspendedState(oldState) |
| || oldState == Display.STATE_UNKNOWN) { |
| if (!Display.isSuspendedState(state)) { |
| setDisplayState(state); |
| currentState = state; |
| } else if (state == Display.STATE_DOZE_SUSPEND |
| || oldState == Display.STATE_DOZE_SUSPEND) { |
| setDisplayState(Display.STATE_DOZE); |
| currentState = Display.STATE_DOZE; |
| } else { |
| return; // old state and new state is off |
| } |
| } |
| |
| // Apply brightness changes given that we are in a non-suspended state. |
| if (brightnessChanged) { |
| setDisplayBrightness(brightness); |
| } |
| |
| // Enter the final desired state, possibly suspended. |
| if (state != currentState) { |
| setDisplayState(state); |
| } |
| } |
| |
| private void setDisplayState(int state) { |
| if (DEBUG) { |
| Slog.d(TAG, "setDisplayState(" |
| + "id=" + displayId |
| + ", state=" + Display.stateToString(state) + ")"); |
| } |
| |
| Trace.traceBegin(Trace.TRACE_TAG_POWER, "setDisplayState(" |
| + "id=" + displayId |
| + ", state=" + Display.stateToString(state) + ")"); |
| try { |
| final int mode = getPowerModeForState(state); |
| SurfaceControl.setDisplayPowerMode(token, mode); |
| } finally { |
| Trace.traceEnd(Trace.TRACE_TAG_POWER); |
| } |
| } |
| |
| private void setDisplayBrightness(int brightness) { |
| if (DEBUG) { |
| Slog.d(TAG, "setDisplayBrightness(" |
| + "id=" + displayId + ", brightness=" + brightness + ")"); |
| } |
| |
| Trace.traceBegin(Trace.TRACE_TAG_POWER, "setDisplayBrightness(" |
| + "id=" + displayId + ", brightness=" + brightness + ")"); |
| try { |
| mBacklight.setBrightness(brightness); |
| } finally { |
| Trace.traceEnd(Trace.TRACE_TAG_POWER); |
| } |
| } |
| }; |
| } |
| return null; |
| } |
| |
| @Override |
| public void requestColorTransformAndModeInTransactionLocked( |
| int colorTransformId, int modeId) { |
| if (modeId == 0) { |
| modeId = mDefaultModeId; |
| } else if (mSupportedModes.indexOfKey(modeId) < 0) { |
| Slog.w(TAG, "Requested mode " + modeId + " is not supported by this display," |
| + " reverting to default display mode."); |
| modeId = mDefaultModeId; |
| } |
| |
| if (colorTransformId == 0) { |
| colorTransformId = mDefaultColorTransformId; |
| } else if (mSupportedColorTransforms.indexOfKey(colorTransformId) < 0) { |
| Slog.w(TAG, "Requested color transform " + colorTransformId + " is not supported" |
| + " by this display, reverting to the default color transform"); |
| colorTransformId = mDefaultColorTransformId; |
| } |
| int physIndex = findDisplayInfoIndexLocked(colorTransformId, modeId); |
| if (physIndex < 0) { |
| Slog.w(TAG, "Requested color transform, mode ID pair (" + colorTransformId + ", " |
| + modeId + ") not available, trying color transform with default mode ID"); |
| modeId = mDefaultModeId; |
| physIndex = findDisplayInfoIndexLocked(colorTransformId, modeId); |
| if (physIndex < 0) { |
| Slog.w(TAG, "Requested color transform with default mode ID still not" |
| + " available, falling back to default color transform with default" |
| + " mode."); |
| colorTransformId = mDefaultColorTransformId; |
| physIndex = findDisplayInfoIndexLocked(colorTransformId, modeId); |
| } |
| } |
| if (mActivePhysIndex == physIndex) { |
| return; |
| } |
| SurfaceControl.setActiveConfig(getDisplayTokenLocked(), physIndex); |
| mActivePhysIndex = physIndex; |
| mActiveModeId = modeId; |
| mActiveModeInvalid = false; |
| mActiveColorTransformId = colorTransformId; |
| mActiveColorTransformInvalid = false; |
| updateDeviceInfoLocked(); |
| } |
| |
| @Override |
| public void dumpLocked(PrintWriter pw) { |
| super.dumpLocked(pw); |
| pw.println("mBuiltInDisplayId=" + mBuiltInDisplayId); |
| pw.println("mActivePhysIndex=" + mActivePhysIndex); |
| pw.println("mActiveModeId=" + mActiveModeId); |
| pw.println("mActiveColorTransformId=" + mActiveColorTransformId); |
| pw.println("mState=" + Display.stateToString(mState)); |
| pw.println("mBrightness=" + mBrightness); |
| pw.println("mBacklight=" + mBacklight); |
| pw.println("mDisplayInfos="); |
| for (int i = 0; i < mDisplayInfos.length; i++) { |
| pw.println(" " + mDisplayInfos[i]); |
| } |
| pw.println("mSupportedModes="); |
| for (int i = 0; i < mSupportedModes.size(); i++) { |
| pw.println(" " + mSupportedModes.valueAt(i)); |
| } |
| pw.println("mSupportedColorTransforms=["); |
| for (int i = 0; i < mSupportedColorTransforms.size(); i++) { |
| if (i != 0) { |
| pw.print(", "); |
| } |
| pw.print(mSupportedColorTransforms.valueAt(i)); |
| } |
| pw.println("]"); |
| } |
| |
| private int findDisplayInfoIndexLocked(int colorTransformId, int modeId) { |
| DisplayModeRecord record = mSupportedModes.get(modeId); |
| Display.ColorTransform transform = mSupportedColorTransforms.get(colorTransformId); |
| if (record != null && transform != null) { |
| for (int i = 0; i < mDisplayInfos.length; i++) { |
| SurfaceControl.PhysicalDisplayInfo info = mDisplayInfos[i]; |
| if (info.colorTransform == transform.getColorTransform() |
| && record.hasMatchingMode(info)){ |
| return i; |
| } |
| } |
| } |
| return -1; |
| } |
| |
| private void updateDeviceInfoLocked() { |
| mInfo = null; |
| sendDisplayDeviceEventLocked(this, DISPLAY_DEVICE_EVENT_CHANGED); |
| } |
| } |
| |
| /** |
| * Keeps track of a display configuration. |
| */ |
| private static final class DisplayModeRecord { |
| public final Display.Mode mMode; |
| |
| public DisplayModeRecord(SurfaceControl.PhysicalDisplayInfo phys) { |
| mMode = createMode(phys.width, phys.height, phys.refreshRate); |
| } |
| |
| /** |
| * Returns whether the mode generated by the given PhysicalDisplayInfo matches the mode |
| * contained by the record modulo mode ID. |
| * |
| * Note that this doesn't necessarily mean the the PhysicalDisplayInfos are identical, just |
| * that they generate identical modes. |
| */ |
| public boolean hasMatchingMode(SurfaceControl.PhysicalDisplayInfo info) { |
| int modeRefreshRate = Float.floatToIntBits(mMode.getRefreshRate()); |
| int displayInfoRefreshRate = Float.floatToIntBits(info.refreshRate); |
| return mMode.getPhysicalWidth() == info.width |
| && mMode.getPhysicalHeight() == info.height |
| && modeRefreshRate == displayInfoRefreshRate; |
| } |
| |
| public String toString() { |
| return "DisplayModeRecord{mMode=" + mMode + "}"; |
| } |
| } |
| |
| private final class HotplugDisplayEventReceiver extends DisplayEventReceiver { |
| public HotplugDisplayEventReceiver(Looper looper) { |
| super(looper); |
| } |
| |
| @Override |
| public void onHotplug(long timestampNanos, int builtInDisplayId, boolean connected) { |
| synchronized (getSyncRoot()) { |
| if (connected) { |
| tryConnectDisplayLocked(builtInDisplayId); |
| } else { |
| tryDisconnectDisplayLocked(builtInDisplayId); |
| } |
| } |
| } |
| } |
| } |
