Support animating just the backlight when turning off. (a52772ff) · Commits · e / os / android_frameworks_base

services/java/com/android/server/power/DisplayPowerController.java

+11 −1

Original line number	Diff line number	Diff line
		@@ -197,6 +197,12 @@ final class DisplayPowerController {
		// May be 0 if no warm-up is required.
		private int mLightSensorWarmUpTimeConfig;

		// True if we should animate the backlight when turning the screen on or off, which
		// tends to be efficient for LCD displays but not for OLED displays.
		// False if we should play the electron beam animation instead, which is better for
		// OLED displays.
		private boolean mElectronBeamAnimatesBacklightConfig;

		// The pending power request.
		// Initially null until the first call to requestPowerState.
		// Guarded by mLock.
		@@ -362,6 +368,9 @@ final class DisplayPowerController {
		com.android.internal.R.integer.config_lightSensorWarmupTime);
		}

		mElectronBeamAnimatesBacklightConfig = resources.getBoolean(
		com.android.internal.R.bool.config_animateScreenLights);

		if (!DEBUG_PRETEND_PROXIMITY_SENSOR_ABSENT) {
		mProximitySensor = mSensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);
		if (mProximitySensor != null) {
		@@ -481,7 +490,8 @@ final class DisplayPowerController {
		private void initialize() {
		final Executor executor = AsyncTask.THREAD_POOL_EXECUTOR;
		Display display = mDisplayManager.getDisplay(Display.DEFAULT_DISPLAY);
		mPowerState = new DisplayPowerState(new ElectronBeam(display),
		mPowerState = new DisplayPowerState(
		mElectronBeamAnimatesBacklightConfig ? null : new ElectronBeam(display),
		new PhotonicModulator(executor,
		mLights.getLight(LightsService.LIGHT_ID_BACKLIGHT),
		mSuspendBlocker));

+15 −7

Original line number	Diff line number	Diff line
		@@ -50,7 +50,7 @@ final class DisplayPowerState {
		private static final int DIRTY_BRIGHTNESS = 1 << 2;

		private final Choreographer mChoreographer;
		private final ElectronBeam mElectronBeam;
		private final ElectronBeam mElectronBeam; // may be null if only animating backlights
		private final PhotonicModulator mScreenBrightnessModulator;

		private int mDirty;
		@@ -134,17 +134,23 @@ final class DisplayPowerState {
		* @return True if the electron beam was prepared.
		*/
		public boolean prepareElectronBeam(boolean warmUp) {
		if (mElectronBeam != null) {
		boolean success = mElectronBeam.prepare(warmUp);
		invalidate(DIRTY_ELECTRON_BEAM);
		return success;
		} else {
		return true;
		}
		}

		/**
		* Dismisses the electron beam surface.
		*/
		public void dismissElectronBeam() {
		if (mElectronBeam != null) {
		mElectronBeam.dismiss();
		}
		}

		/**
		* Sets the level of the electron beam steering current.
		@@ -224,8 +230,10 @@ final class DisplayPowerState {
		pw.println(" mScreenBrightness=" + mScreenBrightness);
		pw.println(" mElectronBeamLevel=" + mElectronBeamLevel);

		if (mElectronBeam != null) {
		mElectronBeam.dump(pw);
		}
		}

		private void invalidate(int dirty) {
		if (mDirty == 0) {
		@@ -243,7 +251,7 @@ final class DisplayPowerState {
		PowerManagerService.nativeSetScreenState(false);
		}

		if ((mDirty & DIRTY_ELECTRON_BEAM) != 0) {
		if ((mDirty & DIRTY_ELECTRON_BEAM) != 0 && mElectronBeam != null) {
		mElectronBeam.draw(mElectronBeamLevel);
		}