Merge "Animate Night display transition" into nyc-mr1-dev (5c0ea3b5) · Commits · e / os / android_frameworks_base

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

+55 −28

Original line number	Diff line number	Diff line
		@@ -24,6 +24,10 @@ import android.os.ServiceManager;
		import android.util.Slog;
		import android.util.SparseArray;

		import com.android.internal.annotations.GuardedBy;

		import java.util.Arrays;

		/**
		* Manager for applying color transformations to the display.
		*/
		@@ -44,19 +48,34 @@ public class DisplayTransformManager {
		*/
		public static final int LEVEL_COLOR_MATRIX_INVERT_COLOR = 300;

		/**
		* Map of level -> color transformation matrix.
		*/
		@GuardedBy("mColorMatrix")
		private final SparseArray<float[]> mColorMatrix = new SparseArray<>(3);
		/**
		* Temporary matrix used internally by {@link #computeColorMatrixLocked()}.
		*/
		@GuardedBy("mColorMatrix")
		private final float[][] mTempColorMatrix = new float[2][16];

		/**
		* Lock used for synchronize access to {@link #mDaltonizerMode}.
		*/
		private final Object mDaltonizerModeLock = new Object();
		@GuardedBy("mDaltonizerModeLock")
		private int mDaltonizerMode = -1;

		/* package */ DisplayTransformManager() {
		}

		/**
		* Returns the color transform matrix set for a given level.
		* Returns a copy of the color transform matrix set for a given level.
		*/
		public float[] getColorMatrix(int key) {
		synchronized (mColorMatrix) {
		return mColorMatrix.get(key);
		final float[] value = mColorMatrix.get(key);
		return value == null ? null : Arrays.copyOf(value, value.length);
		}
		}

		@@ -66,39 +85,44 @@ public class DisplayTransformManager {
		* Note: all color transforms are first composed to a single matrix in ascending order based
		* on level before being applied to the display.
		*
		* @param key the level used to identify and compose the color transform (low -> high)
		* @param level the level used to identify and compose the color transform (low -> high)
		* @param value the 4x4 color transform matrix (in column-major order), or {@code null} to
		* remove the color transform matrix associated with the provided level
		*/
		public void setColorMatrix(int key, float[] value) {
		public void setColorMatrix(int level, float[] value) {
		if (value != null && value.length != 16) {
		throw new IllegalArgumentException("Expected length: 16 (4x4 matrix)"
		+ ", actual length: " + value.length);
		}

		synchronized (mColorMatrix) {
		if (value != null) {
		mColorMatrix.put(key, value);
		final float[] oldValue = mColorMatrix.get(level);
		if (!Arrays.equals(oldValue, value)) {
		if (value == null) {
		mColorMatrix.remove(level);
		} else if (oldValue == null) {
		mColorMatrix.put(level, Arrays.copyOf(value, value.length));
		} else {
		mColorMatrix.remove(key);
		System.arraycopy(value, 0, oldValue, 0, value.length);
		}

		// Update the current color transform.
		applyColorMatrix(computeColorMatrix());
		applyColorMatrix(computeColorMatrixLocked());
		}
		}
		}

		/**
		* Returns the composition of all current color matrices, or {@code null} if there are none.
		*/
		private float[] computeColorMatrix() {
		synchronized (mColorMatrix) {
		@GuardedBy("mColorMatrix")
		private float[] computeColorMatrixLocked() {
		final int count = mColorMatrix.size();
		if (count == 0) {
		return null;
		}

		final float[][] result = new float[2][16];
		final float[][] result = mTempColorMatrix;
		Matrix.setIdentityM(result[0], 0);
		for (int i = 0; i < count; i++) {
		float[] rhs = mColorMatrix.valueAt(i);
		@@ -106,14 +130,15 @@ public class DisplayTransformManager {
		}
		return result[count % 2];
		}
		}

		/**
		* Returns the current Daltonization mode.
		*/
		public int getDaltonizerMode() {
		synchronized (mDaltonizerModeLock) {
		return mDaltonizerMode;
		}
		}

		/**
		* Sets the current Daltonization mode. This adjusts the color space to correct for or simulate
		@@ -122,11 +147,13 @@ public class DisplayTransformManager {
		* @param mode the new Daltonization mode, or -1 to disable
		*/
		public void setDaltonizerMode(int mode) {
		synchronized (mDaltonizerModeLock) {
		if (mDaltonizerMode != mode) {
		mDaltonizerMode = mode;
		applyDaltonizerMode(mode);
		}
		}
		}

		/**
		* Propagates the provided color transformation matrix to the SurfaceFlinger.

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

+89 −3

Original line number	Diff line number	Diff line
		@@ -16,6 +16,10 @@

		package com.android.server.display;

		import android.animation.Animator;
		import android.animation.AnimatorListenerAdapter;
		import android.animation.TypeEvaluator;
		import android.animation.ValueAnimator;
		import android.app.AlarmManager;
		import android.content.BroadcastReceiver;
		import android.content.ContentResolver;
		@@ -24,11 +28,14 @@ import android.content.Intent;
		import android.content.IntentFilter;
		import android.database.ContentObserver;
		import android.net.Uri;
		import android.opengl.Matrix;
		import android.os.Handler;
		import android.os.Looper;
		import android.os.UserHandle;
		import android.provider.Settings.Secure;
		import android.util.MathUtils;
		import android.util.Slog;
		import android.view.animation.AnimationUtils;

		import com.android.internal.app.NightDisplayController;
		import com.android.server.SystemService;
		@@ -39,6 +46,8 @@ import com.android.server.twilight.TwilightState;
		import java.util.Calendar;
		import java.util.TimeZone;

		import static com.android.server.display.DisplayTransformManager.LEVEL_COLOR_MATRIX_NIGHT_DISPLAY;

		/**
		* Tints the display at night.
		*/
		@@ -58,6 +67,19 @@ public final class NightDisplayService extends SystemService
		0, 0, 0, 1
		};

		/**
		* The identity matrix, used if one of the given matrices is {@code null}.
		*/
		private static final float[] MATRIX_IDENTITY = new float[16];
		static {
		Matrix.setIdentityM(MATRIX_IDENTITY, 0);
		}

		/**
		* Evaluator used to animate color matrix transitions.
		*/
		private static final ColorMatrixEvaluator COLOR_MATRIX_EVALUATOR = new ColorMatrixEvaluator();

		private final Handler mHandler;

		private int mCurrentUser = UserHandle.USER_NULL;
		@@ -65,6 +87,7 @@ public final class NightDisplayService extends SystemService
		private boolean mBootCompleted;

		private NightDisplayController mController;
		private ValueAnimator mColorMatrixAnimator;
		private Boolean mIsActivated;
		private AutoMode mAutoMode;

		@@ -181,6 +204,11 @@ public final class NightDisplayService extends SystemService
		mAutoMode = null;
		}

		if (mColorMatrixAnimator != null) {
		mColorMatrixAnimator.end();
		mColorMatrixAnimator = null;
		}

		mIsActivated = null;
		}

		@@ -195,10 +223,49 @@ public final class NightDisplayService extends SystemService
		mAutoMode.onActivated(activated);
		}

		// Update the current color matrix.
		// Cancel the old animator if still running.
		if (mColorMatrixAnimator != null) {
		mColorMatrixAnimator.cancel();
		}

		final DisplayTransformManager dtm = getLocalService(DisplayTransformManager.class);
		dtm.setColorMatrix(DisplayTransformManager.LEVEL_COLOR_MATRIX_NIGHT_DISPLAY,
		activated ? MATRIX_NIGHT : null);
		final float[] from = dtm.getColorMatrix(LEVEL_COLOR_MATRIX_NIGHT_DISPLAY);
		final float[] to = mIsActivated ? MATRIX_NIGHT : null;

		mColorMatrixAnimator = ValueAnimator.ofObject(COLOR_MATRIX_EVALUATOR,
		from == null ? MATRIX_IDENTITY : from, to == null ? MATRIX_IDENTITY : to);
		mColorMatrixAnimator.setDuration(getContext().getResources()
		.getInteger(android.R.integer.config_longAnimTime));
		mColorMatrixAnimator.setInterpolator(AnimationUtils.loadInterpolator(
		getContext(), android.R.interpolator.fast_out_slow_in));
		mColorMatrixAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
		@Override
		public void onAnimationUpdate(ValueAnimator animator) {
		final float[] value = (float[]) animator.getAnimatedValue();
		dtm.setColorMatrix(LEVEL_COLOR_MATRIX_NIGHT_DISPLAY, value);
		}
		});
		mColorMatrixAnimator.addListener(new AnimatorListenerAdapter() {

		private boolean mIsCancelled;

		@Override
		public void onAnimationCancel(Animator animator) {
		mIsCancelled = true;
		}

		@Override
		public void onAnimationEnd(Animator animator) {
		if (!mIsCancelled) {
		// Ensure final color matrix is set at the end of the animation. If the
		// animation is cancelled then don't set the final color matrix so the new
		// animator can pick up from where this one left off.
		dtm.setColorMatrix(LEVEL_COLOR_MATRIX_NIGHT_DISPLAY, to);
		}
		mColorMatrixAnimator = null;
		}
		});
		mColorMatrixAnimator.start();
		}
		}

		@@ -394,4 +461,23 @@ public final class NightDisplayService extends SystemService
		updateActivated();
		}
		}

		/**
		* Interpolates between two 4x4 color transform matrices (in column-major order).
		*/
		private static class ColorMatrixEvaluator implements TypeEvaluator<float[]> {

		/**
		* Result matrix returned by {@link #evaluate(float, float[], float[])}.
		*/
		private final float[] mResultMatrix = new float[16];

		@Override
		public float[] evaluate(float fraction, float[] startValue, float[] endValue) {
		for (int i = 0; i < mResultMatrix.length; i++) {
		mResultMatrix[i] = MathUtils.lerp(startValue[i], endValue[i], fraction);
		}
		return mResultMatrix;
		}
		}
		}