| /* |
| * Copyright (C) 2016 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 static com.android.server.display.DisplayTransformManager.LEVEL_COLOR_MATRIX_DISPLAY_WHITE_BALANCE; |
| import static com.android.server.display.DisplayTransformManager.LEVEL_COLOR_MATRIX_NIGHT_DISPLAY; |
| import static com.android.server.display.DisplayTransformManager.LEVEL_COLOR_MATRIX_SATURATION; |
| |
| import android.Manifest; |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.TypeEvaluator; |
| import android.animation.ValueAnimator; |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.annotation.Size; |
| import android.annotation.UserIdInt; |
| import android.app.AlarmManager; |
| import android.content.BroadcastReceiver; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.PackageManager; |
| import android.content.res.Resources; |
| import android.database.ContentObserver; |
| import android.graphics.ColorSpace; |
| import android.hardware.display.ColorDisplayManager; |
| import android.hardware.display.IColorDisplayManager; |
| import android.net.Uri; |
| import android.opengl.Matrix; |
| import android.os.Binder; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.os.UserHandle; |
| import android.provider.Settings.Secure; |
| import android.provider.Settings.System; |
| import android.util.MathUtils; |
| import android.util.Slog; |
| import android.view.SurfaceControl; |
| import android.view.accessibility.AccessibilityManager; |
| import android.view.animation.AnimationUtils; |
| |
| import com.android.internal.R; |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.app.ColorDisplayController; |
| import com.android.internal.util.DumpUtils; |
| import com.android.server.DisplayThread; |
| import com.android.server.SystemService; |
| import com.android.server.twilight.TwilightListener; |
| import com.android.server.twilight.TwilightManager; |
| import com.android.server.twilight.TwilightState; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.lang.ref.WeakReference; |
| import java.time.DateTimeException; |
| import java.time.Instant; |
| import java.time.LocalDateTime; |
| import java.time.LocalTime; |
| import java.time.ZoneId; |
| import java.time.format.DateTimeParseException; |
| import java.util.Arrays; |
| |
| /** |
| * Controls the display's color transforms. |
| */ |
| public final class ColorDisplayService extends SystemService { |
| |
| private static final String TAG = "ColorDisplayService"; |
| |
| /** |
| * The transition time, in milliseconds, for Night Display to turn on/off. |
| */ |
| private static final long TRANSITION_DURATION = 3000L; |
| |
| /** |
| * 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); |
| } |
| |
| private static final int MSG_APPLY_NIGHT_DISPLAY_IMMEDIATE = 0; |
| private static final int MSG_APPLY_NIGHT_DISPLAY_ANIMATED = 1; |
| private static final int MSG_APPLY_GLOBAL_SATURATION = 2; |
| |
| /** |
| * Evaluator used to animate color matrix transitions. |
| */ |
| private static final ColorMatrixEvaluator COLOR_MATRIX_EVALUATOR = new ColorMatrixEvaluator(); |
| |
| private final TintController mNightDisplayTintController = new TintController() { |
| |
| private float[] mMatrixNightDisplay = new float[16]; |
| private final float[] mColorTempCoefficients = new float[9]; |
| |
| /** |
| * Set coefficients based on whether the color matrix is linear or not. |
| */ |
| @Override |
| public void setUp(Context context, boolean needsLinear) { |
| final String[] coefficients = context.getResources().getStringArray(needsLinear |
| ? R.array.config_nightDisplayColorTemperatureCoefficients |
| : R.array.config_nightDisplayColorTemperatureCoefficientsNative); |
| for (int i = 0; i < 9 && i < coefficients.length; i++) { |
| mColorTempCoefficients[i] = Float.parseFloat(coefficients[i]); |
| } |
| } |
| |
| @Override |
| public void setMatrix(int cct) { |
| if (mMatrixNightDisplay.length != 16) { |
| Slog.d(TAG, "The display transformation matrix must be 4x4"); |
| return; |
| } |
| |
| Matrix.setIdentityM(mMatrixNightDisplay, 0); |
| |
| final float squareTemperature = cct * cct; |
| final float red = squareTemperature * mColorTempCoefficients[0] |
| + cct * mColorTempCoefficients[1] + mColorTempCoefficients[2]; |
| final float green = squareTemperature * mColorTempCoefficients[3] |
| + cct * mColorTempCoefficients[4] + mColorTempCoefficients[5]; |
| final float blue = squareTemperature * mColorTempCoefficients[6] |
| + cct * mColorTempCoefficients[7] + mColorTempCoefficients[8]; |
| mMatrixNightDisplay[0] = red; |
| mMatrixNightDisplay[5] = green; |
| mMatrixNightDisplay[10] = blue; |
| } |
| |
| @Override |
| public float[] getMatrix() { |
| return isActivated() ? mMatrixNightDisplay : MATRIX_IDENTITY; |
| } |
| |
| @Override |
| public int getLevel() { |
| return LEVEL_COLOR_MATRIX_NIGHT_DISPLAY; |
| } |
| }; |
| |
| private final TintController mDisplayWhiteBalanceTintController = new TintController() { |
| // Three chromaticity coordinates per color: X, Y, and Z |
| private final int NUM_VALUES_PER_PRIMARY = 3; |
| // Four colors: red, green, blue, and white |
| private final int NUM_DISPLAY_PRIMARIES_VALS = 4 * NUM_VALUES_PER_PRIMARY; |
| |
| private final Object mLock = new Object(); |
| private int mTemperatureMin; |
| private int mTemperatureMax; |
| private int mTemperatureDefault; |
| private float[] mDisplayNominalWhiteXYZ = new float[NUM_VALUES_PER_PRIMARY]; |
| private ColorSpace.Rgb mDisplayColorSpaceRGB; |
| private float[] mChromaticAdaptationMatrix; |
| private int mCurrentColorTemperature; |
| private float[] mCurrentColorTemperatureXYZ; |
| private boolean mSetUp = false; |
| private float[] mMatrixDisplayWhiteBalance = new float[16]; |
| |
| @Override |
| public void setUp(Context context, boolean needsLinear) { |
| mSetUp = false; |
| |
| final Resources res = getContext().getResources(); |
| final String[] displayPrimariesValues = res.getStringArray( |
| R.array.config_displayWhiteBalanceDisplayPrimaries); |
| final String[] nominalWhiteValues = res.getStringArray( |
| R.array.config_displayWhiteBalanceDisplayNominalWhite); |
| |
| if (displayPrimariesValues.length != NUM_DISPLAY_PRIMARIES_VALS) { |
| Slog.e(TAG, "Unexpected display white balance primaries resource length " + |
| displayPrimariesValues.length); |
| return; |
| } |
| |
| if (nominalWhiteValues.length != NUM_VALUES_PER_PRIMARY) { |
| Slog.e(TAG, "Unexpected display white balance nominal white resource length " + |
| nominalWhiteValues.length); |
| return; |
| } |
| |
| float[] displayRedGreenBlueXYZ = |
| new float[NUM_DISPLAY_PRIMARIES_VALS - NUM_VALUES_PER_PRIMARY]; |
| float[] displayWhiteXYZ = new float[NUM_VALUES_PER_PRIMARY]; |
| for (int i = 0; i < displayRedGreenBlueXYZ.length; i++) { |
| displayRedGreenBlueXYZ[i] = Float.parseFloat(displayPrimariesValues[i]); |
| } |
| for (int i = 0; i < displayWhiteXYZ.length; i++) { |
| displayWhiteXYZ[i] = Float.parseFloat( |
| displayPrimariesValues[displayRedGreenBlueXYZ.length + i]); |
| } |
| |
| final ColorSpace.Rgb displayColorSpaceRGB = new ColorSpace.Rgb( |
| "Display Color Space", |
| displayRedGreenBlueXYZ, |
| displayWhiteXYZ, |
| 2.2f // gamma, unused for display white balance |
| ); |
| |
| float[] displayNominalWhiteXYZ = new float[NUM_VALUES_PER_PRIMARY]; |
| for (int i = 0; i < nominalWhiteValues.length; i++) { |
| displayNominalWhiteXYZ[i] = Float.parseFloat(nominalWhiteValues[i]); |
| } |
| |
| final int colorTemperatureMin = res.getInteger( |
| R.integer.config_displayWhiteBalanceColorTemperatureMin); |
| if (colorTemperatureMin <= 0) { |
| Slog.e(TAG, "display white balance minimum temperature must be greater than 0"); |
| return; |
| } |
| |
| final int colorTemperatureMax = res.getInteger( |
| R.integer.config_displayWhiteBalanceColorTemperatureMax); |
| if (colorTemperatureMax < colorTemperatureMin) { |
| Slog.e(TAG, "display white balance max temp must be greater or equal to min"); |
| return; |
| } |
| |
| final int colorTemperature = res.getInteger( |
| R.integer.config_displayWhiteBalanceColorTemperatureDefault); |
| |
| synchronized (mLock) { |
| mDisplayColorSpaceRGB = displayColorSpaceRGB; |
| mDisplayNominalWhiteXYZ = displayNominalWhiteXYZ; |
| mTemperatureMin = colorTemperatureMin; |
| mTemperatureMax = colorTemperatureMax; |
| mTemperatureDefault = colorTemperature; |
| mSetUp = true; |
| } |
| |
| setMatrix(mTemperatureDefault); |
| } |
| |
| @Override |
| public float[] getMatrix() { |
| return mSetUp && isActivated() ? mMatrixDisplayWhiteBalance : MATRIX_IDENTITY; |
| } |
| |
| @Override |
| public void setMatrix(int cct) { |
| if (!mSetUp) { |
| Slog.w(TAG, "Can't set display white balance temperature: uninitialized"); |
| return; |
| } |
| |
| if (cct < mTemperatureMin) { |
| Slog.w(TAG, "Requested display color temperature is below allowed minimum"); |
| cct = mTemperatureMin; |
| } else if (cct > mTemperatureMax) { |
| Slog.w(TAG, "Requested display color temperature is above allowed maximum"); |
| cct = mTemperatureMax; |
| } |
| |
| Slog.d(TAG, "setDisplayWhiteBalanceTemperatureMatrix: cct = " + cct); |
| |
| synchronized (mLock) { |
| mCurrentColorTemperature = cct; |
| |
| // Adapt the display's nominal white point to match the requested CCT value |
| mCurrentColorTemperatureXYZ = ColorSpace.cctToIlluminantdXyz(cct); |
| |
| mChromaticAdaptationMatrix = |
| ColorSpace.chromaticAdaptation(ColorSpace.Adaptation.BRADFORD, |
| mDisplayNominalWhiteXYZ, mCurrentColorTemperatureXYZ); |
| |
| // Convert the adaptation matrix to RGB space |
| float[] result = ColorSpace.mul3x3(mChromaticAdaptationMatrix, |
| mDisplayColorSpaceRGB.getTransform()); |
| result = ColorSpace.mul3x3(mDisplayColorSpaceRGB.getInverseTransform(), result); |
| |
| // Normalize the transform matrix to peak white value in RGB space |
| final float adaptedMaxR = result[0] + result[3] + result[6]; |
| final float adaptedMaxG = result[1] + result[4] + result[7]; |
| final float adaptedMaxB = result[2] + result[5] + result[8]; |
| final float denum = Math.max(Math.max(adaptedMaxR, adaptedMaxG), adaptedMaxB); |
| for (int i = 0; i < result.length; i++) { |
| result[i] /= denum; |
| } |
| |
| Matrix.setIdentityM(mMatrixDisplayWhiteBalance, 0); |
| java.lang.System.arraycopy(result, 0, mMatrixDisplayWhiteBalance, 0, 3); |
| java.lang.System.arraycopy(result, 3, mMatrixDisplayWhiteBalance, 4, 3); |
| java.lang.System.arraycopy(result, 6, mMatrixDisplayWhiteBalance, 8, 3); |
| } |
| } |
| |
| @Override |
| public int getLevel() { |
| return LEVEL_COLOR_MATRIX_DISPLAY_WHITE_BALANCE; |
| } |
| |
| /** |
| * Format a given matrix into a string. |
| * |
| * @param matrix the matrix to format |
| * @param cols number of columns in the matrix |
| */ |
| private String matrixToString(float[] matrix, int cols) { |
| if (matrix == null || cols <= 0) { |
| Slog.e(TAG, "Invalid arguments when formatting matrix to string"); |
| return ""; |
| } |
| |
| StringBuilder sb = new StringBuilder(""); |
| for (int i = 0; i < matrix.length; i++) { |
| if (i % cols == 0) { |
| sb.append("\n "); |
| } |
| sb.append(String.format("%9.6f ", matrix[i])); |
| } |
| return sb.toString(); |
| } |
| |
| @Override |
| public void dump(PrintWriter pw) { |
| synchronized (mLock) { |
| pw.println("ColorDisplayService"); |
| pw.println(" mSetUp = " + mSetUp); |
| |
| if (!mSetUp) { |
| return; |
| } |
| |
| pw.println(" isActivated = " + isActivated()); |
| pw.println(" mTemperatureMin = " + mTemperatureMin); |
| pw.println(" mTemperatureMax = " + mTemperatureMax); |
| pw.println(" mTemperatureDefault = " + mTemperatureDefault); |
| pw.println(" mCurrentColorTemperature = " + mCurrentColorTemperature); |
| pw.println(" mCurrentColorTemperatureXYZ = " + |
| matrixToString(mCurrentColorTemperatureXYZ, 3)); |
| pw.println(" mDisplayColorSpaceRGB RGB-to-XYZ = " + |
| matrixToString(mDisplayColorSpaceRGB.getTransform(), 3)); |
| pw.println(" mChromaticAdaptationMatrix = " + |
| matrixToString(mChromaticAdaptationMatrix, 3)); |
| pw.println(" mDisplayColorSpaceRGB XYZ-to-RGB = " + |
| matrixToString(mDisplayColorSpaceRGB.getInverseTransform(), 3)); |
| pw.println(" mMatrixDisplayWhiteBalance = " + |
| matrixToString(mMatrixDisplayWhiteBalance, 4)); |
| } |
| } |
| }; |
| |
| private final TintController mGlobalSaturationTintController = new TintController() { |
| |
| private float[] mMatrixGlobalSaturation = new float[16]; |
| |
| @Override |
| public void setUp(Context context, boolean needsLinear) { |
| } |
| |
| @Override |
| public float[] getMatrix() { |
| return Arrays.copyOf(mMatrixGlobalSaturation, mMatrixGlobalSaturation.length); |
| } |
| |
| @Override |
| public void setMatrix(int saturationLevel) { |
| if (saturationLevel < 0) { |
| saturationLevel = 0; |
| } else if (saturationLevel > 100) { |
| saturationLevel = 100; |
| } |
| Slog.d(TAG, "Setting saturation level: " + saturationLevel); |
| |
| if (saturationLevel == 100) { |
| Matrix.setIdentityM(mMatrixGlobalSaturation, 0); |
| } else { |
| float saturation = saturationLevel * 0.1f; |
| float desaturation = 1.0f - saturation; |
| float[] luminance = {0.231f * desaturation, 0.715f * desaturation, |
| 0.072f * desaturation}; |
| mMatrixGlobalSaturation[0] = luminance[0] + saturation; |
| mMatrixGlobalSaturation[1] = luminance[0]; |
| mMatrixGlobalSaturation[2] = luminance[0]; |
| mMatrixGlobalSaturation[4] = luminance[1]; |
| mMatrixGlobalSaturation[5] = luminance[1] + saturation; |
| mMatrixGlobalSaturation[6] = luminance[1]; |
| mMatrixGlobalSaturation[8] = luminance[2]; |
| mMatrixGlobalSaturation[9] = luminance[2]; |
| mMatrixGlobalSaturation[10] = luminance[2] + saturation; |
| } |
| } |
| |
| @Override |
| public int getLevel() { |
| return LEVEL_COLOR_MATRIX_SATURATION; |
| } |
| }; |
| |
| /** |
| * Matrix and offset used for converting color to grayscale. |
| */ |
| private static final float[] MATRIX_GRAYSCALE = new float[]{ |
| .2126f, .2126f, .2126f, 0f, |
| .7152f, .7152f, .7152f, 0f, |
| .0722f, .0722f, .0722f, 0f, |
| 0f, 0f, 0f, 1f |
| }; |
| |
| /** |
| * Matrix and offset used for luminance inversion. Represents a transform from RGB to YIQ color |
| * space, rotation around the Y axis by 180 degrees, transform back to RGB color space, and |
| * subtraction from 1. The last row represents a non-multiplied addition, see surfaceflinger's |
| * ProgramCache for full implementation details. |
| */ |
| private static final float[] MATRIX_INVERT_COLOR = new float[] { |
| 0.402f, -0.598f, -0.599f, 0f, |
| -1.174f, -0.174f, -1.175f, 0f, |
| -0.228f, -0.228f, 0.772f, 0f, |
| 1f, 1f, 1f, 1f |
| }; |
| |
| private final Handler mHandler; |
| |
| private final AppSaturationController mAppSaturationController = new AppSaturationController(); |
| |
| private int mCurrentUser = UserHandle.USER_NULL; |
| private ContentObserver mUserSetupObserver; |
| private boolean mBootCompleted; |
| |
| private ColorDisplayController mNightDisplayController; |
| private ContentObserver mContentObserver; |
| |
| private DisplayWhiteBalanceListener mDisplayWhiteBalanceListener; |
| |
| private NightDisplayAutoMode mNightDisplayAutoMode; |
| |
| public ColorDisplayService(Context context) { |
| super(context); |
| mHandler = new TintHandler(Looper.getMainLooper()); |
| } |
| |
| @Override |
| public void onStart() { |
| publishBinderService(Context.COLOR_DISPLAY_SERVICE, new BinderService()); |
| publishLocalService(ColorDisplayServiceInternal.class, new ColorDisplayServiceInternal()); |
| } |
| |
| @Override |
| public void onBootPhase(int phase) { |
| if (phase >= PHASE_BOOT_COMPLETED) { |
| mBootCompleted = true; |
| |
| // Register listeners now that boot is complete. |
| if (mCurrentUser != UserHandle.USER_NULL && mUserSetupObserver == null) { |
| setUp(); |
| } |
| } |
| } |
| |
| @Override |
| public void onStartUser(int userHandle) { |
| super.onStartUser(userHandle); |
| |
| if (mCurrentUser == UserHandle.USER_NULL) { |
| onUserChanged(userHandle); |
| } |
| } |
| |
| @Override |
| public void onSwitchUser(int userHandle) { |
| super.onSwitchUser(userHandle); |
| |
| onUserChanged(userHandle); |
| } |
| |
| @Override |
| public void onStopUser(int userHandle) { |
| super.onStopUser(userHandle); |
| |
| if (mCurrentUser == userHandle) { |
| onUserChanged(UserHandle.USER_NULL); |
| } |
| } |
| |
| private void onUserChanged(int userHandle) { |
| final ContentResolver cr = getContext().getContentResolver(); |
| |
| if (mCurrentUser != UserHandle.USER_NULL) { |
| if (mUserSetupObserver != null) { |
| cr.unregisterContentObserver(mUserSetupObserver); |
| mUserSetupObserver = null; |
| } else if (mBootCompleted) { |
| tearDown(); |
| } |
| } |
| |
| mCurrentUser = userHandle; |
| |
| if (mCurrentUser != UserHandle.USER_NULL) { |
| if (!isUserSetupCompleted(cr, mCurrentUser)) { |
| mUserSetupObserver = new ContentObserver(mHandler) { |
| @Override |
| public void onChange(boolean selfChange, Uri uri) { |
| if (isUserSetupCompleted(cr, mCurrentUser)) { |
| cr.unregisterContentObserver(this); |
| mUserSetupObserver = null; |
| |
| if (mBootCompleted) { |
| setUp(); |
| } |
| } |
| } |
| }; |
| cr.registerContentObserver(Secure.getUriFor(Secure.USER_SETUP_COMPLETE), |
| false /* notifyForDescendants */, mUserSetupObserver, mCurrentUser); |
| } else if (mBootCompleted) { |
| setUp(); |
| } |
| } |
| } |
| |
| private static boolean isUserSetupCompleted(ContentResolver cr, int userHandle) { |
| return Secure.getIntForUser(cr, Secure.USER_SETUP_COMPLETE, 0, userHandle) == 1; |
| } |
| |
| private void setUp() { |
| Slog.d(TAG, "setUp: currentUser=" + mCurrentUser); |
| |
| mNightDisplayController = new ColorDisplayController(getContext(), mCurrentUser); |
| |
| // Listen for external changes to any of the settings. |
| if (mContentObserver == null) { |
| mContentObserver = new ContentObserver(new Handler(DisplayThread.get().getLooper())) { |
| @Override |
| public void onChange(boolean selfChange, Uri uri) { |
| super.onChange(selfChange, uri); |
| |
| final String setting = uri == null ? null : uri.getLastPathSegment(); |
| if (setting != null) { |
| switch (setting) { |
| case Secure.NIGHT_DISPLAY_ACTIVATED: |
| onNightDisplayActivated(mNightDisplayController.isActivated()); |
| break; |
| case Secure.NIGHT_DISPLAY_COLOR_TEMPERATURE: |
| onNightDisplayColorTemperatureChanged( |
| mNightDisplayController.getColorTemperature()); |
| break; |
| case Secure.NIGHT_DISPLAY_AUTO_MODE: |
| onNightDisplayAutoModeChanged( |
| mNightDisplayController.getAutoMode()); |
| break; |
| case Secure.NIGHT_DISPLAY_CUSTOM_START_TIME: |
| onNightDisplayCustomStartTimeChanged( |
| mNightDisplayController.getCustomStartTime()); |
| break; |
| case Secure.NIGHT_DISPLAY_CUSTOM_END_TIME: |
| onNightDisplayCustomEndTimeChanged( |
| mNightDisplayController.getCustomEndTime()); |
| break; |
| case System.DISPLAY_COLOR_MODE: |
| onDisplayColorModeChanged(mNightDisplayController.getColorMode()); |
| break; |
| case Secure.ACCESSIBILITY_DISPLAY_INVERSION_ENABLED: |
| onAccessibilityInversionChanged(); |
| onAccessibilityActivated(); |
| break; |
| case Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED: |
| onAccessibilityDaltonizerChanged(); |
| onAccessibilityActivated(); |
| break; |
| case Secure.ACCESSIBILITY_DISPLAY_DALTONIZER: |
| onAccessibilityDaltonizerChanged(); |
| break; |
| case Secure.DISPLAY_WHITE_BALANCE_ENABLED: |
| updateDisplayWhiteBalanceStatus(); |
| break; |
| } |
| } |
| } |
| }; |
| } |
| final ContentResolver cr = getContext().getContentResolver(); |
| cr.registerContentObserver(Secure.getUriFor(Secure.NIGHT_DISPLAY_ACTIVATED), |
| false /* notifyForDescendants */, mContentObserver, mCurrentUser); |
| cr.registerContentObserver(Secure.getUriFor(Secure.NIGHT_DISPLAY_COLOR_TEMPERATURE), |
| false /* notifyForDescendants */, mContentObserver, mCurrentUser); |
| cr.registerContentObserver(Secure.getUriFor(Secure.NIGHT_DISPLAY_AUTO_MODE), |
| false /* notifyForDescendants */, mContentObserver, mCurrentUser); |
| cr.registerContentObserver(Secure.getUriFor(Secure.NIGHT_DISPLAY_CUSTOM_START_TIME), |
| false /* notifyForDescendants */, mContentObserver, mCurrentUser); |
| cr.registerContentObserver(Secure.getUriFor(Secure.NIGHT_DISPLAY_CUSTOM_END_TIME), |
| false /* notifyForDescendants */, mContentObserver, mCurrentUser); |
| cr.registerContentObserver(System.getUriFor(System.DISPLAY_COLOR_MODE), |
| false /* notifyForDescendants */, mContentObserver, mCurrentUser); |
| cr.registerContentObserver( |
| Secure.getUriFor(Secure.ACCESSIBILITY_DISPLAY_INVERSION_ENABLED), |
| false /* notifyForDescendants */, mContentObserver, mCurrentUser); |
| cr.registerContentObserver( |
| Secure.getUriFor(Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED), |
| false /* notifyForDescendants */, mContentObserver, mCurrentUser); |
| cr.registerContentObserver( |
| Secure.getUriFor(Secure.ACCESSIBILITY_DISPLAY_DALTONIZER), |
| false /* notifyForDescendants */, mContentObserver, mCurrentUser); |
| cr.registerContentObserver(Secure.getUriFor(Secure.DISPLAY_WHITE_BALANCE_ENABLED), |
| false /* notifyForDescendants */, mContentObserver, mCurrentUser); |
| |
| // Set the color mode, if valid, and immediately apply the updated tint matrix based on the |
| // existing activated state. This ensures consistency of tint across the color mode change. |
| onDisplayColorModeChanged(mNightDisplayController.getColorMode()); |
| |
| if (ColorDisplayManager.isNightDisplayAvailable(getContext())) { |
| // Reset the activated state. |
| mNightDisplayTintController.setActivated(null); |
| |
| // Prepare the night display color transformation matrix. |
| mNightDisplayTintController |
| .setUp(getContext(), DisplayTransformManager.needsLinearColorMatrix()); |
| mNightDisplayTintController.setMatrix(mNightDisplayController.getColorTemperature()); |
| |
| // Initialize the current auto mode. |
| onNightDisplayAutoModeChanged(mNightDisplayController.getAutoMode()); |
| |
| // Force the initialization current activated state. |
| if (mNightDisplayTintController.isActivatedStateNotSet()) { |
| onNightDisplayActivated(mNightDisplayController.isActivated()); |
| } |
| } |
| |
| if (ColorDisplayManager.isDisplayWhiteBalanceAvailable(getContext())) { |
| // Prepare the display white balance transform matrix. |
| mDisplayWhiteBalanceTintController.setUp(getContext(), true /* needsLinear */); |
| |
| updateDisplayWhiteBalanceStatus(); |
| } |
| } |
| |
| private void tearDown() { |
| Slog.d(TAG, "tearDown: currentUser=" + mCurrentUser); |
| |
| getContext().getContentResolver().unregisterContentObserver(mContentObserver); |
| |
| if (mNightDisplayController != null) { |
| mNightDisplayController = null; |
| } |
| |
| if (ColorDisplayManager.isNightDisplayAvailable(getContext())) { |
| if (mNightDisplayAutoMode != null) { |
| mNightDisplayAutoMode.onStop(); |
| mNightDisplayAutoMode = null; |
| } |
| mNightDisplayTintController.endAnimator(); |
| } |
| |
| if (ColorDisplayManager.isDisplayWhiteBalanceAvailable(getContext())) { |
| mDisplayWhiteBalanceTintController.endAnimator(); |
| } |
| } |
| |
| private void onNightDisplayActivated(boolean activated) { |
| if (mNightDisplayTintController.isActivatedStateNotSet() |
| || mNightDisplayTintController.isActivated() != activated) { |
| Slog.i(TAG, activated ? "Turning on night display" : "Turning off night display"); |
| |
| mNightDisplayTintController.setActivated(activated); |
| |
| if (mNightDisplayAutoMode != null) { |
| mNightDisplayAutoMode.onActivated(activated); |
| } |
| |
| updateDisplayWhiteBalanceStatus(); |
| |
| applyTint(mNightDisplayTintController, false); |
| } |
| } |
| |
| private void onNightDisplayAutoModeChanged(int autoMode) { |
| Slog.d(TAG, "onNightDisplayAutoModeChanged: autoMode=" + autoMode); |
| |
| if (mNightDisplayAutoMode != null) { |
| mNightDisplayAutoMode.onStop(); |
| mNightDisplayAutoMode = null; |
| } |
| |
| if (autoMode == ColorDisplayController.AUTO_MODE_CUSTOM) { |
| mNightDisplayAutoMode = new CustomNightDisplayAutoMode(); |
| } else if (autoMode == ColorDisplayController.AUTO_MODE_TWILIGHT) { |
| mNightDisplayAutoMode = new TwilightNightDisplayAutoMode(); |
| } |
| |
| if (mNightDisplayAutoMode != null) { |
| mNightDisplayAutoMode.onStart(); |
| } |
| } |
| |
| private void onNightDisplayCustomStartTimeChanged(LocalTime startTime) { |
| Slog.d(TAG, "onNightDisplayCustomStartTimeChanged: startTime=" + startTime); |
| |
| if (mNightDisplayAutoMode != null) { |
| mNightDisplayAutoMode.onCustomStartTimeChanged(startTime); |
| } |
| } |
| |
| private void onNightDisplayCustomEndTimeChanged(LocalTime endTime) { |
| Slog.d(TAG, "onNightDisplayCustomEndTimeChanged: endTime=" + endTime); |
| |
| if (mNightDisplayAutoMode != null) { |
| mNightDisplayAutoMode.onCustomEndTimeChanged(endTime); |
| } |
| } |
| |
| private void onNightDisplayColorTemperatureChanged(int colorTemperature) { |
| mNightDisplayTintController.setMatrix(colorTemperature); |
| applyTint(mNightDisplayTintController, true); |
| } |
| |
| private void onDisplayColorModeChanged(int mode) { |
| if (mode == -1) { |
| return; |
| } |
| |
| mNightDisplayTintController.cancelAnimator(); |
| mDisplayWhiteBalanceTintController.cancelAnimator(); |
| |
| mNightDisplayTintController |
| .setUp(getContext(), DisplayTransformManager.needsLinearColorMatrix(mode)); |
| mNightDisplayTintController.setMatrix(mNightDisplayController.getColorTemperature()); |
| |
| updateDisplayWhiteBalanceStatus(); |
| |
| final DisplayTransformManager dtm = getLocalService(DisplayTransformManager.class); |
| dtm.setColorMode(mode, mNightDisplayTintController.getMatrix()); |
| } |
| |
| private void onAccessibilityActivated() { |
| onDisplayColorModeChanged(mNightDisplayController.getColorMode()); |
| } |
| |
| /** |
| * Apply the accessibility daltonizer transform based on the settings value. |
| */ |
| private void onAccessibilityDaltonizerChanged() { |
| final boolean enabled = Secure.getIntForUser(getContext().getContentResolver(), |
| Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED, 0, mCurrentUser) != 0; |
| final int daltonizerMode = enabled ? Secure.getIntForUser(getContext().getContentResolver(), |
| Secure.ACCESSIBILITY_DISPLAY_DALTONIZER, |
| AccessibilityManager.DALTONIZER_CORRECT_DEUTERANOMALY, mCurrentUser) |
| : AccessibilityManager.DALTONIZER_DISABLED; |
| |
| final DisplayTransformManager dtm = getLocalService(DisplayTransformManager.class); |
| if (daltonizerMode == AccessibilityManager.DALTONIZER_SIMULATE_MONOCHROMACY) { |
| // Monochromacy isn't supported by the native Daltonizer implementation; use grayscale. |
| dtm.setColorMatrix(DisplayTransformManager.LEVEL_COLOR_MATRIX_GRAYSCALE, |
| MATRIX_GRAYSCALE); |
| dtm.setDaltonizerMode(AccessibilityManager.DALTONIZER_DISABLED); |
| } else { |
| dtm.setColorMatrix(DisplayTransformManager.LEVEL_COLOR_MATRIX_GRAYSCALE, null); |
| dtm.setDaltonizerMode(daltonizerMode); |
| } |
| } |
| |
| /** |
| * Apply the accessibility inversion transform based on the settings value. |
| */ |
| private void onAccessibilityInversionChanged() { |
| final boolean enabled = Secure.getIntForUser(getContext().getContentResolver(), |
| Secure.ACCESSIBILITY_DISPLAY_INVERSION_ENABLED, 0, mCurrentUser) != 0; |
| final DisplayTransformManager dtm = getLocalService(DisplayTransformManager.class); |
| dtm.setColorMatrix(DisplayTransformManager.LEVEL_COLOR_MATRIX_INVERT_COLOR, |
| enabled ? MATRIX_INVERT_COLOR : null); |
| } |
| |
| /** |
| * Applies current color temperature matrix, or removes it if deactivated. |
| * |
| * @param immediate {@code true} skips transition animation |
| */ |
| private void applyTint(TintController tintController, boolean immediate) { |
| tintController.cancelAnimator(); |
| |
| final DisplayTransformManager dtm = getLocalService(DisplayTransformManager.class); |
| final float[] from = dtm.getColorMatrix(tintController.getLevel()); |
| final float[] to = tintController.getMatrix(); |
| |
| if (immediate) { |
| dtm.setColorMatrix(tintController.getLevel(), to); |
| } else { |
| tintController.setAnimator(ValueAnimator.ofObject(COLOR_MATRIX_EVALUATOR, |
| from == null ? MATRIX_IDENTITY : from, to)); |
| tintController.getAnimator().setDuration(TRANSITION_DURATION); |
| tintController.getAnimator().setInterpolator(AnimationUtils.loadInterpolator( |
| getContext(), android.R.interpolator.fast_out_slow_in)); |
| tintController.getAnimator().addUpdateListener((ValueAnimator animator) -> { |
| final float[] value = (float[]) animator.getAnimatedValue(); |
| dtm.setColorMatrix(tintController.getLevel(), value); |
| }); |
| tintController.getAnimator().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(tintController.getLevel(), to); |
| } |
| tintController.setAnimator(null); |
| } |
| }); |
| tintController.getAnimator().start(); |
| } |
| } |
| |
| /** |
| * Returns the first date time corresponding to the local time that occurs before the provided |
| * date time. |
| * |
| * @param compareTime the LocalDateTime to compare against |
| * @return the prior LocalDateTime corresponding to this local time |
| */ |
| @VisibleForTesting |
| static LocalDateTime getDateTimeBefore(LocalTime localTime, LocalDateTime compareTime) { |
| final LocalDateTime ldt = LocalDateTime.of(compareTime.getYear(), compareTime.getMonth(), |
| compareTime.getDayOfMonth(), localTime.getHour(), localTime.getMinute()); |
| |
| // Check if the local time has passed, if so return the same time yesterday. |
| return ldt.isAfter(compareTime) ? ldt.minusDays(1) : ldt; |
| } |
| |
| /** |
| * Returns the first date time corresponding to this local time that occurs after the provided |
| * date time. |
| * |
| * @param compareTime the LocalDateTime to compare against |
| * @return the next LocalDateTime corresponding to this local time |
| */ |
| @VisibleForTesting |
| static LocalDateTime getDateTimeAfter(LocalTime localTime, LocalDateTime compareTime) { |
| final LocalDateTime ldt = LocalDateTime.of(compareTime.getYear(), compareTime.getMonth(), |
| compareTime.getDayOfMonth(), localTime.getHour(), localTime.getMinute()); |
| |
| // Check if the local time has passed, if so return the same time tomorrow. |
| return ldt.isBefore(compareTime) ? ldt.plusDays(1) : ldt; |
| } |
| |
| private void updateDisplayWhiteBalanceStatus() { |
| boolean oldActivated = mDisplayWhiteBalanceTintController.isActivated(); |
| mDisplayWhiteBalanceTintController.setActivated(isDisplayWhiteBalanceSettingEnabled() && |
| !mNightDisplayTintController.isActivated() && |
| DisplayTransformManager.needsLinearColorMatrix()); |
| boolean activated = mDisplayWhiteBalanceTintController.isActivated(); |
| |
| if (mDisplayWhiteBalanceListener != null && oldActivated != activated) { |
| mDisplayWhiteBalanceListener.onDisplayWhiteBalanceStatusChanged(activated); |
| } |
| |
| // If disabled, clear the tint. If enabled, do nothing more here and let the next |
| // temperature update set the correct tint. |
| if (!activated) { |
| applyTint(mDisplayWhiteBalanceTintController, false); |
| } |
| } |
| |
| private boolean isDisplayWhiteBalanceSettingEnabled() { |
| return Secure.getIntForUser(getContext().getContentResolver(), |
| Secure.DISPLAY_WHITE_BALANCE_ENABLED, 0, mCurrentUser) == 1; |
| } |
| |
| private boolean isDeviceColorManagedInternal() { |
| final DisplayTransformManager dtm = getLocalService(DisplayTransformManager.class); |
| return dtm.isDeviceColorManaged(); |
| } |
| |
| private int getTransformCapabilitiesInternal() { |
| int availabilityFlags = ColorDisplayManager.CAPABILITY_NONE; |
| if (SurfaceControl.getProtectedContentSupport()) { |
| availabilityFlags |= ColorDisplayManager.CAPABILITY_PROTECTED_CONTENT; |
| } |
| final Resources res = getContext().getResources(); |
| if (res.getBoolean(R.bool.config_setColorTransformAccelerated)) { |
| availabilityFlags |= ColorDisplayManager.CAPABILITY_HARDWARE_ACCELERATION_GLOBAL; |
| } |
| if (res.getBoolean(R.bool.config_setColorTransformAcceleratedPerLayer)) { |
| availabilityFlags |= ColorDisplayManager.CAPABILITY_HARDWARE_ACCELERATION_PER_APP; |
| } |
| return availabilityFlags; |
| } |
| |
| /** |
| * Returns the last time the night display transform activation state was changed, or {@link |
| * LocalDateTime#MIN} if night display has never been activated. |
| */ |
| private LocalDateTime getNightDisplayLastActivatedTimeSetting() { |
| final ContentResolver cr = getContext().getContentResolver(); |
| final String lastActivatedTime = Secure.getStringForUser( |
| cr, Secure.NIGHT_DISPLAY_LAST_ACTIVATED_TIME, getContext().getUserId()); |
| if (lastActivatedTime != null) { |
| try { |
| return LocalDateTime.parse(lastActivatedTime); |
| } catch (DateTimeParseException ignored) { |
| } |
| // Uses the old epoch time. |
| try { |
| return LocalDateTime.ofInstant( |
| Instant.ofEpochMilli(Long.parseLong(lastActivatedTime)), |
| ZoneId.systemDefault()); |
| } catch (DateTimeException | NumberFormatException ignored) { |
| } |
| } |
| return LocalDateTime.MIN; |
| } |
| |
| private boolean setAppSaturationLevelInternal(String packageName, int saturationLevel) { |
| return mAppSaturationController |
| .setSaturationLevel(packageName, mCurrentUser, saturationLevel); |
| } |
| |
| private void dumpInternal(PrintWriter pw) { |
| pw.println("COLOR DISPLAY MANAGER dumpsys (color_display)"); |
| pw.println("Night Display:"); |
| if (ColorDisplayManager.isNightDisplayAvailable(getContext())) { |
| pw.println(" Activated: " + mNightDisplayTintController.isActivated()); |
| } else { |
| pw.println(" Not available"); |
| } |
| mAppSaturationController.dump(pw); |
| } |
| |
| private abstract class NightDisplayAutoMode { |
| |
| public abstract void onActivated(boolean activated); |
| |
| public abstract void onStart(); |
| |
| public abstract void onStop(); |
| |
| public void onCustomStartTimeChanged(LocalTime startTime) { |
| } |
| |
| public void onCustomEndTimeChanged(LocalTime endTime) { |
| } |
| } |
| |
| private final class CustomNightDisplayAutoMode extends NightDisplayAutoMode implements |
| AlarmManager.OnAlarmListener { |
| |
| private final AlarmManager mAlarmManager; |
| private final BroadcastReceiver mTimeChangedReceiver; |
| |
| private LocalTime mStartTime; |
| private LocalTime mEndTime; |
| |
| private LocalDateTime mLastActivatedTime; |
| |
| CustomNightDisplayAutoMode() { |
| mAlarmManager = (AlarmManager) getContext().getSystemService(Context.ALARM_SERVICE); |
| mTimeChangedReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| updateActivated(); |
| } |
| }; |
| } |
| |
| private void updateActivated() { |
| final LocalDateTime now = LocalDateTime.now(); |
| final LocalDateTime start = getDateTimeBefore(mStartTime, now); |
| final LocalDateTime end = getDateTimeAfter(mEndTime, start); |
| boolean activate = now.isBefore(end); |
| |
| if (mLastActivatedTime != null) { |
| // Maintain the existing activated state if within the current period. |
| if (mLastActivatedTime.isBefore(now) && mLastActivatedTime.isAfter(start) |
| && (mLastActivatedTime.isAfter(end) || now.isBefore(end))) { |
| activate = mNightDisplayController.isActivated(); |
| } |
| } |
| |
| if (mNightDisplayTintController.isActivatedStateNotSet() || ( |
| mNightDisplayTintController.isActivated() != activate)) { |
| mNightDisplayController.setActivated(activate); |
| } |
| |
| updateNextAlarm(mNightDisplayTintController.isActivated(), now); |
| } |
| |
| private void updateNextAlarm(@Nullable Boolean activated, @NonNull LocalDateTime now) { |
| if (activated != null) { |
| final LocalDateTime next = activated ? getDateTimeAfter(mEndTime, now) |
| : getDateTimeAfter(mStartTime, now); |
| final long millis = next.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli(); |
| mAlarmManager.setExact(AlarmManager.RTC, millis, TAG, this, null); |
| } |
| } |
| |
| @Override |
| public void onStart() { |
| final IntentFilter intentFilter = new IntentFilter(Intent.ACTION_TIME_CHANGED); |
| intentFilter.addAction(Intent.ACTION_TIMEZONE_CHANGED); |
| getContext().registerReceiver(mTimeChangedReceiver, intentFilter); |
| |
| mStartTime = mNightDisplayController.getCustomStartTime(); |
| mEndTime = mNightDisplayController.getCustomEndTime(); |
| |
| mLastActivatedTime = getNightDisplayLastActivatedTimeSetting(); |
| |
| // Force an update to initialize state. |
| updateActivated(); |
| } |
| |
| @Override |
| public void onStop() { |
| getContext().unregisterReceiver(mTimeChangedReceiver); |
| |
| mAlarmManager.cancel(this); |
| mLastActivatedTime = null; |
| } |
| |
| @Override |
| public void onActivated(boolean activated) { |
| mLastActivatedTime = getNightDisplayLastActivatedTimeSetting(); |
| updateNextAlarm(activated, LocalDateTime.now()); |
| } |
| |
| @Override |
| public void onCustomStartTimeChanged(LocalTime startTime) { |
| mStartTime = startTime; |
| mLastActivatedTime = null; |
| updateActivated(); |
| } |
| |
| @Override |
| public void onCustomEndTimeChanged(LocalTime endTime) { |
| mEndTime = endTime; |
| mLastActivatedTime = null; |
| updateActivated(); |
| } |
| |
| @Override |
| public void onAlarm() { |
| Slog.d(TAG, "onAlarm"); |
| updateActivated(); |
| } |
| } |
| |
| private final class TwilightNightDisplayAutoMode extends NightDisplayAutoMode implements |
| TwilightListener { |
| |
| private final TwilightManager mTwilightManager; |
| private LocalDateTime mLastActivatedTime; |
| |
| TwilightNightDisplayAutoMode() { |
| mTwilightManager = getLocalService(TwilightManager.class); |
| } |
| |
| private void updateActivated(TwilightState state) { |
| if (state == null) { |
| // If there isn't a valid TwilightState then just keep the current activated |
| // state. |
| return; |
| } |
| |
| boolean activate = state.isNight(); |
| if (mLastActivatedTime != null) { |
| final LocalDateTime now = LocalDateTime.now(); |
| final LocalDateTime sunrise = state.sunrise(); |
| final LocalDateTime sunset = state.sunset(); |
| // Maintain the existing activated state if within the current period. |
| if (mLastActivatedTime.isBefore(now) && (mLastActivatedTime.isBefore(sunrise) |
| ^ mLastActivatedTime.isBefore(sunset))) { |
| activate = mNightDisplayController.isActivated(); |
| } |
| } |
| |
| if (mNightDisplayTintController.isActivatedStateNotSet() || ( |
| mNightDisplayTintController.isActivated() != activate)) { |
| mNightDisplayController.setActivated(activate); |
| } |
| } |
| |
| @Override |
| public void onActivated(boolean activated) { |
| mLastActivatedTime = getNightDisplayLastActivatedTimeSetting(); |
| } |
| |
| @Override |
| public void onStart() { |
| mTwilightManager.registerListener(this, mHandler); |
| mLastActivatedTime = getNightDisplayLastActivatedTimeSetting(); |
| |
| // Force an update to initialize state. |
| updateActivated(mTwilightManager.getLastTwilightState()); |
| } |
| |
| @Override |
| public void onStop() { |
| mTwilightManager.unregisterListener(this); |
| mLastActivatedTime = null; |
| } |
| |
| @Override |
| public void onTwilightStateChanged(@Nullable TwilightState state) { |
| Slog.d(TAG, "onTwilightStateChanged: isNight=" |
| + (state == null ? null : state.isNight())); |
| updateActivated(state); |
| } |
| } |
| |
| /** |
| * 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; |
| } |
| } |
| |
| private abstract static class TintController { |
| |
| private ValueAnimator mAnimator; |
| private Boolean mIsActivated; |
| |
| public ValueAnimator getAnimator() { |
| return mAnimator; |
| } |
| |
| public void setAnimator(ValueAnimator animator) { |
| mAnimator = animator; |
| } |
| |
| /** |
| * Cancel the animator if it's still running. |
| */ |
| public void cancelAnimator() { |
| if (mAnimator != null) { |
| mAnimator.cancel(); |
| } |
| } |
| |
| /** |
| * End the animator if it's still running, jumping to the end state. |
| */ |
| public void endAnimator() { |
| if (mAnimator != null) { |
| mAnimator.end(); |
| mAnimator = null; |
| } |
| } |
| |
| public void setActivated(Boolean isActivated) { |
| mIsActivated = isActivated; |
| } |
| |
| public boolean isActivated() { |
| return mIsActivated != null && mIsActivated; |
| } |
| |
| public boolean isActivatedStateNotSet() { |
| return mIsActivated == null; |
| } |
| |
| /** |
| * Dump debug information. |
| */ |
| public void dump(PrintWriter pw) { |
| } |
| |
| /** |
| * Set up any constants needed for computing the matrix. |
| */ |
| public abstract void setUp(Context context, boolean needsLinear); |
| |
| /** |
| * Sets the 4x4 matrix to apply. |
| */ |
| public abstract void setMatrix(int value); |
| |
| /** |
| * Get the 4x4 matrix to apply. |
| */ |
| public abstract float[] getMatrix(); |
| |
| /** |
| * Get the color transform level to apply the matrix. |
| */ |
| public abstract int getLevel(); |
| } |
| |
| /** |
| * Local service that allows color transforms to be enabled from other system services. |
| */ |
| public final class ColorDisplayServiceInternal { |
| |
| /** |
| * Set the current CCT value for the display white balance transform, and if the transform |
| * is enabled, apply it. |
| * |
| * @param cct the color temperature in Kelvin. |
| */ |
| public boolean setDisplayWhiteBalanceColorTemperature(int cct) { |
| // Update the transform matrix even if it can't be applied. |
| mDisplayWhiteBalanceTintController.setMatrix(cct); |
| |
| if (mDisplayWhiteBalanceTintController.isActivated()) { |
| applyTint(mDisplayWhiteBalanceTintController, false); |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Sets the listener and returns whether display white balance is currently enabled. |
| */ |
| public boolean setDisplayWhiteBalanceListener(DisplayWhiteBalanceListener listener) { |
| mDisplayWhiteBalanceListener = listener; |
| return mDisplayWhiteBalanceTintController.isActivated(); |
| } |
| |
| public void dump(PrintWriter pw) { |
| mDisplayWhiteBalanceTintController.dump(pw); |
| } |
| |
| /** |
| * Adds a {@link WeakReference<ColorTransformController>} for a newly started activity, and |
| * invokes {@link ColorTransformController#applyAppSaturation(float[], float[])} if needed. |
| */ |
| public boolean attachColorTransformController(String packageName, @UserIdInt int userId, |
| WeakReference<ColorTransformController> controller) { |
| return mAppSaturationController |
| .addColorTransformController(packageName, userId, controller); |
| } |
| } |
| |
| /** |
| * Listener for changes in display white balance status. |
| */ |
| public interface DisplayWhiteBalanceListener { |
| |
| /** |
| * Notify that the display white balance status has changed, either due to preemption by |
| * another transform or the feature being turned off. |
| */ |
| void onDisplayWhiteBalanceStatusChanged(boolean enabled); |
| } |
| |
| private final class TintHandler extends Handler { |
| |
| TintHandler(Looper looper) { |
| super(looper, null, true /* async */); |
| } |
| |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case MSG_APPLY_GLOBAL_SATURATION: |
| mGlobalSaturationTintController.setMatrix(msg.arg1); |
| applyTint(mGlobalSaturationTintController, false); |
| break; |
| } |
| } |
| } |
| |
| /** |
| * Interface for applying transforms to a given AppWindow. |
| */ |
| public interface ColorTransformController { |
| |
| /** Apply the given saturation (grayscale) matrix to the associated AppWindow. */ |
| void applyAppSaturation(@Size(9) float[] matrix, @Size(3) float[] translation); |
| } |
| |
| private final class BinderService extends IColorDisplayManager.Stub { |
| |
| @Override |
| public boolean isDeviceColorManaged() { |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| return isDeviceColorManagedInternal(); |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| @Override |
| public boolean setSaturationLevel(int level) { |
| final boolean hasTransformsPermission = getContext() |
| .checkCallingPermission(Manifest.permission.CONTROL_DISPLAY_COLOR_TRANSFORMS) |
| == PackageManager.PERMISSION_GRANTED; |
| final boolean hasLegacyPermission = getContext() |
| .checkCallingPermission(Manifest.permission.CONTROL_DISPLAY_SATURATION) |
| == PackageManager.PERMISSION_GRANTED; |
| if (!hasTransformsPermission && !hasLegacyPermission) { |
| throw new SecurityException("Permission required to set display saturation level"); |
| } |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| final Message message = mHandler.obtainMessage(MSG_APPLY_GLOBAL_SATURATION); |
| message.arg1 = level; |
| mHandler.sendMessage(message); |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| return true; |
| } |
| |
| @Override |
| public boolean setAppSaturationLevel(String packageName, int level) { |
| getContext().enforceCallingPermission( |
| Manifest.permission.CONTROL_DISPLAY_COLOR_TRANSFORMS, |
| "Permission required to set display saturation level"); |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| return setAppSaturationLevelInternal(packageName, level); |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| public int getTransformCapabilities() { |
| getContext().enforceCallingPermission( |
| Manifest.permission.CONTROL_DISPLAY_COLOR_TRANSFORMS, |
| "Permission required to query transform capabilities"); |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| return getTransformCapabilitiesInternal(); |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| @Override |
| public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| if (!DumpUtils.checkDumpPermission(getContext(), TAG, pw)) return; |
| |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| dumpInternal(pw); |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| } |
| } |