Improve the power off fade animation. (252c2069) · Commits · e / os / android_frameworks_base

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

+8 −10

Original line number	Diff line number	Diff line
		@@ -206,11 +206,9 @@ 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;
		// True if we should fade the screen while turning it off, false if we should play
		// a stylish electron beam animation instead.
		private boolean mElectronBeamFadesConfig;

		// The pending power request.
		// Initially null until the first call to requestPowerState.
		@@ -396,7 +394,7 @@ final class DisplayPowerController {
		mScreenBrightnessRangeMinimum = clampAbsoluteBrightness(screenBrightnessMinimum);
		mScreenBrightnessRangeMaximum = PowerManager.BRIGHTNESS_ON;

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

		if (!DEBUG_PRETEND_PROXIMITY_SENSOR_ABSENT) {
		@@ -682,8 +680,8 @@ final class DisplayPowerController {
		if (mPowerState.getElectronBeamLevel() == 1.0f) {
		mPowerState.dismissElectronBeam();
		} else if (mPowerState.prepareElectronBeam(
		mElectronBeamAnimatesBacklightConfig ?
		ElectronBeam.MODE_BLANK :
		mElectronBeamFadesConfig ?
		ElectronBeam.MODE_FADE :
		ElectronBeam.MODE_WARM_UP)) {
		mElectronBeamOnAnimator.start();
		} else {
		@@ -704,8 +702,8 @@ final class DisplayPowerController {
		if (mPowerState.getElectronBeamLevel() == 0.0f) {
		setScreenOn(false);
		} else if (mPowerState.prepareElectronBeam(
		mElectronBeamAnimatesBacklightConfig ?
		ElectronBeam.MODE_BLANK :
		mElectronBeamFadesConfig ?
		ElectronBeam.MODE_FADE :
		ElectronBeam.MODE_COOL_DOWN)
		&& mPowerState.isScreenOn()) {
		mElectronBeamOffAnimator.start();

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

+20 −5

Original line number	Diff line number	Diff line
		@@ -80,6 +80,7 @@ final class ElectronBeam {
		private EGLContext mEglContext;
		private EGLSurface mEglSurface;
		private boolean mSurfaceVisible;
		private float mSurfaceAlpha;

		// Texture names. We only use one texture, which contains the screenshot.
		private final int[] mTexNames = new int[1];
		@@ -90,9 +91,20 @@ final class ElectronBeam {
		private final FloatBuffer mVertexBuffer = createNativeFloatBuffer(8);
		private final FloatBuffer mTexCoordBuffer = createNativeFloatBuffer(8);

		/**
		* Animates an electron beam warming up.
		*/
		public static final int MODE_WARM_UP = 0;

		/**
		* Animates an electron beam shutting off.
		*/
		public static final int MODE_COOL_DOWN = 1;
		public static final int MODE_BLANK = 2;

		/**
		* Animates a simple dim layer to fade the contents of the screen in or out progressively.
		*/
		public static final int MODE_FADE = 2;

		public ElectronBeam(Display display) {
		mDisplay = display;
		@@ -138,7 +150,7 @@ final class ElectronBeam {

		private boolean tryPrepare() {
		if (createSurface()) {
		if (mMode == MODE_BLANK) {
		if (mMode == MODE_FADE) {
		return true;
		}
		return createEglContext()
		@@ -182,7 +194,7 @@ final class ElectronBeam {
		return false;
		}

		if (mMode == MODE_BLANK) {
		if (mMode == MODE_FADE) {
		return showSurface(1.0f - level);
		}

		@@ -504,7 +516,7 @@ final class ElectronBeam {
		if (mSurface == null) {
		try {
		int flags;
		if (mMode == MODE_BLANK) {
		if (mMode == MODE_FADE) {
		flags = Surface.FX_SURFACE_DIM \| Surface.HIDDEN;
		} else {
		flags = Surface.OPAQUE \| Surface.HIDDEN;
		@@ -579,11 +591,12 @@ final class ElectronBeam {
		}
		mSurface = null;
		mSurfaceVisible = false;
		mSurfaceAlpha = 0f;
		}
		}

		private boolean showSurface(float alpha) {
		if (!mSurfaceVisible) {
		if (!mSurfaceVisible \|\| mSurfaceAlpha != alpha) {
		Surface.openTransaction();
		try {
		mSurface.setLayer(ELECTRON_BEAM_LAYER);
		@@ -593,6 +606,7 @@ final class ElectronBeam {
		Surface.closeTransaction();
		}
		mSurfaceVisible = true;
		mSurfaceAlpha = alpha;
		}
		return true;
		}
		@@ -683,5 +697,6 @@ final class ElectronBeam {
		pw.println(" mDisplayWidth=" + mDisplayWidth);
		pw.println(" mDisplayHeight=" + mDisplayHeight);
		pw.println(" mSurfaceVisible=" + mSurfaceVisible);
		pw.println(" mSurfaceAlpha=" + mSurfaceAlpha);
		}
		}