Merge "Clean up framework brightness system" into sc-dev am: 2bb1f86a17 (39d49003) · Commits · e / os / android_frameworks_base

core/java/com/android/internal/display/BrightnessSynchronizer.java

+10 −0

Original line number	Diff line number	Diff line
		@@ -154,10 +154,20 @@ public class BrightnessSynchronizer {
		}
		}

		/**
		* Gets the stored screen brightness float value from the display brightness setting.
		* @return brightness
		*/
		private float getScreenBrightnessFloat() {
		return mDisplayManager.getBrightness(Display.DEFAULT_DISPLAY);
		}

		/**
		* Gets the stored screen brightness int from the system settings.
		* @param context for accessing settings
		*
		* @return brightness
		*/
		private static int getScreenBrightnessInt(Context context) {
		return Settings.System.getIntForUser(context.getContentResolver(),
		Settings.System.SCREEN_BRIGHTNESS, PowerManager.BRIGHTNESS_INVALID,

services/core/java/com/android/server/display/BrightnessSetting.java

+20 −59

Original line number	Diff line number	Diff line
		@@ -17,19 +17,14 @@
		package com.android.server.display;

		import android.annotation.NonNull;
		import android.content.Context;
		import android.database.ContentObserver;
		import android.net.Uri;
		import android.os.Handler;
		import android.os.Looper;
		import android.os.Message;
		import android.os.PowerManager;
		import android.os.UserHandle;
		import android.provider.Settings;
		import android.util.Slog;
		import android.view.Display;

		import java.util.concurrent.CopyOnWriteArrayList;
		import com.android.internal.annotations.GuardedBy;

		import java.util.concurrent.CopyOnWriteArraySet;

		/**
		* Saves brightness to a persistent data store, enabling each logical display to have its own
		@@ -39,14 +34,11 @@ public class BrightnessSetting {
		private static final String TAG = "BrightnessSetting";

		private static final int MSG_BRIGHTNESS_CHANGED = 1;
		private static final Uri BRIGHTNESS_FLOAT_URI =
		Settings.System.getUriFor(Settings.System.SCREEN_BRIGHTNESS_FLOAT);

		private final PersistentDataStore mPersistentDataStore;
		private final DisplayManagerService.SyncRoot mSyncRoot;

		private final boolean mIsDefaultDisplay;
		private final Context mContext;
		private final LogicalDisplay mLogicalDisplay;
		private final Object mLock = new Object();

		private final Handler mHandler = new Handler(Looper.getMainLooper()) {
		@Override
		@@ -58,37 +50,20 @@ public class BrightnessSetting {
		}
		};

		private final ContentObserver mBrightnessSettingsObserver = new ContentObserver(mHandler) {
		@Override
		public void onChange(boolean selfChange, Uri uri) {
		if (selfChange) {
		return;
		}
		if (BRIGHTNESS_FLOAT_URI.equals(uri)) {
		float brightness = getScreenBrightnessSettingFloat();
		setBrightness(brightness, true);
		}
		}
		};

		private final CopyOnWriteArrayList<BrightnessSettingListener> mListeners =
		new CopyOnWriteArrayList<BrightnessSettingListener>();
		private final CopyOnWriteArraySet<BrightnessSettingListener> mListeners =
		new CopyOnWriteArraySet<>();

		@GuardedBy("mSyncRoot")
		private float mBrightness;

		BrightnessSetting(@NonNull PersistentDataStore persistentDataStore,
		@NonNull LogicalDisplay logicalDisplay,
		@NonNull Context context) {
		DisplayManagerService.SyncRoot syncRoot) {
		mPersistentDataStore = persistentDataStore;
		mLogicalDisplay = logicalDisplay;
		mContext = context;
		mIsDefaultDisplay = mLogicalDisplay.getDisplayIdLocked() == Display.DEFAULT_DISPLAY;
		mBrightness = mPersistentDataStore.getBrightness(
		mLogicalDisplay.getPrimaryDisplayDeviceLocked());
		if (mIsDefaultDisplay) {
		mContext.getContentResolver().registerContentObserver(BRIGHTNESS_FLOAT_URI,
		false, mBrightnessSettingsObserver);
		}
		mSyncRoot = syncRoot;
		}

		/**
		@@ -97,16 +72,19 @@ public class BrightnessSetting {
		* @return brightness for the current display
		*/
		public float getBrightness() {
		synchronized (mSyncRoot) {
		return mBrightness;
		}
		}

		/**
		* Registers listener for brightness setting change events.
		*/
		public void registerListener(BrightnessSettingListener l) {
		if (!mListeners.contains(l)) {
		mListeners.add(l);
		if (mListeners.contains(l)) {
		Slog.wtf(TAG, "Duplicate Listener added");
		}
		mListeners.add(l);
		}

		/**
		@@ -119,27 +97,16 @@ public class BrightnessSetting {
		}

		void setBrightness(float brightness) {
		setBrightness(brightness, false);
		}

		private void setBrightness(float brightness, boolean isFromSystemSetting) {
		if (brightness == mBrightness) {
		return;
		}
		if (Float.isNaN(brightness)) {
		Slog.w(TAG, "Attempting to set invalid brightness");
		return;
		}
		synchronized (mLock) {
		synchronized (mSyncRoot) {
		if (brightness == mBrightness) {
		return;
		}

		mBrightness = brightness;

		// If it didn't come from us
		if (mIsDefaultDisplay && !isFromSystemSetting) {
		Settings.System.putFloatForUser(mContext.getContentResolver(),
		Settings.System.SCREEN_BRIGHTNESS_FLOAT, brightness,
		UserHandle.USER_CURRENT);
		}
		mPersistentDataStore.setBrightness(mLogicalDisplay.getPrimaryDisplayDeviceLocked(),
		brightness);
		int toSend = Float.floatToIntBits(mBrightness);
		@@ -148,12 +115,6 @@ public class BrightnessSetting {
		}
		}

		private float getScreenBrightnessSettingFloat() {
		return Settings.System.getFloatForUser(mContext.getContentResolver(),
		Settings.System.SCREEN_BRIGHTNESS_FLOAT, PowerManager.BRIGHTNESS_INVALID_FLOAT,
		UserHandle.USER_CURRENT);
		}

		private void notifyListeners(float brightness) {
		for (BrightnessSettingListener l : mListeners) {
		l.onBrightnessChanged(brightness);

services/core/java/com/android/server/display/DisplayManagerService.java

+1 −11

Original line number	Diff line number	Diff line
		@@ -399,9 +399,6 @@ public final class DisplayManagerService extends SystemService {
		// Receives notifications about changes to Settings.
		private SettingsObserver mSettingsObserver;

		// Received notifications of the device-state action (such as "fold", "unfold")
		private DeviceStateManager mDeviceStateManager;

		private final boolean mAllowNonNativeRefreshRateOverride;

		private final BrightnessSynchronizer mBrightnessSynchronizer;
		@@ -1236,13 +1233,6 @@ public final class DisplayManagerService extends SystemService {
		adapter.registerLocked();
		}

		@VisibleForTesting
		void handleLogicalDisplayAdded(LogicalDisplay display) {
		synchronized (mSyncRoot) {
		handleLogicalDisplayAddedLocked(display);
		}
		}

		private void handleLogicalDisplayAddedLocked(LogicalDisplay display) {
		final DisplayDevice device = display.getPrimaryDisplayDeviceLocked();
		final int displayId = display.getDisplayIdLocked();
		@@ -2107,7 +2097,7 @@ public final class DisplayManagerService extends SystemService {
		}

		final BrightnessSetting brightnessSetting = new BrightnessSetting(mPersistentDataStore,
		display, mContext);
		display, mSyncRoot);
		final DisplayPowerController displayPowerController = new DisplayPowerController(
		mContext, mDisplayPowerCallbacks, mPowerHandler, mSensorManager,
		mDisplayBlanker, display, mBrightnessTracker, brightnessSetting,

services/core/java/com/android/server/display/DisplayPowerController.java

+0 −3

Original line number	Diff line number	Diff line
		@@ -149,9 +149,6 @@ final class DisplayPowerController implements AutomaticBrightnessController.Call
		private static final int REPORTED_TO_POLICY_SCREEN_ON = 2;
		private static final int REPORTED_TO_POLICY_SCREEN_TURNING_OFF = 3;

		private static final Uri BRIGHTNESS_FLOAT_URI =
		Settings.System.getUriFor(Settings.System.SCREEN_BRIGHTNESS_FLOAT);

		private final Object mLock = new Object();

		private final Context mContext;