Add ColorDisplayServiceInternal local service
For display white balance and grayscale
Bug: 111215474
Test: atest FrameworksServicesTest:ColorDisplayServiceTest
Change-Id: I5c7b6543665e520b4e167ac8e6719f337018f172
diff --git a/services/core/java/com/android/server/display/ColorDisplayService.java b/services/core/java/com/android/server/display/ColorDisplayService.java
index b6c82d3..73d3d95 100644
--- a/services/core/java/com/android/server/display/ColorDisplayService.java
+++ b/services/core/java/com/android/server/display/ColorDisplayService.java
@@ -16,6 +16,7 @@
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 android.animation.Animator;
@@ -31,6 +32,7 @@
import android.content.Intent;
import android.content.IntentFilter;
import android.database.ContentObserver;
+import android.hardware.display.ColorDisplayManager;
import android.hardware.display.IColorDisplayManager;
import android.net.Uri;
import android.opengl.Matrix;
@@ -86,23 +88,94 @@
*/
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() {
+
+ private float[] mMatrixDisplayWhiteBalance = new float[16];
+
+ @Override
+ public void setUp(Context context, boolean needsLinear) {
+ }
+
+ @Override
+ public float[] getMatrix() {
+ return isActivated() ? mMatrixDisplayWhiteBalance : MATRIX_IDENTITY;
+ }
+
+ @Override
+ public void setMatrix(int cct) {
+ }
+
+ @Override
+ public int getLevel() {
+ return LEVEL_COLOR_MATRIX_DISPLAY_WHITE_BALANCE;
+ }
+ };
+
private final Handler mHandler;
- private float[] mMatrixNight = new float[16];
-
- private final float[] mColorTempCoefficients = new float[9];
-
private int mCurrentUser = UserHandle.USER_NULL;
private ContentObserver mUserSetupObserver;
private boolean mBootCompleted;
private ColorDisplayController mNightDisplayController;
private ContentObserver mContentObserver;
- private ValueAnimator mColorMatrixAnimator;
- private Boolean mIsNightDisplayActivated;
+ private DisplayWhiteBalanceListener mDisplayWhiteBalanceListener;
+
private NightDisplayAutoMode mNightDisplayAutoMode;
+ private Integer mDisplayWhiteBalanceColorTemperature;
+
public ColorDisplayService(Context context) {
super(context);
mHandler = new Handler(Looper.getMainLooper());
@@ -111,6 +184,7 @@
@Override
public void onStart() {
publishBinderService(Context.COLOR_DISPLAY_SERVICE, new BinderService());
+ publishLocalService(ColorDisplayServiceInternal.class, new ColorDisplayServiceInternal());
}
@Override
@@ -232,6 +306,9 @@
case Secure.ACCESSIBILITY_DISPLAY_INVERSION_ENABLED:
onAccessibilityTransformChanged();
break;
+ case Secure.DISPLAY_WHITE_BALANCE_ENABLED:
+ onDisplayWhiteBalanceEnabled(isDisplayWhiteBalanceSettingEnabled());
+ break;
}
}
}
@@ -256,25 +333,41 @@
cr.registerContentObserver(
Secure.getUriFor(Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED),
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());
- // Reset the activated state.
- mIsNightDisplayActivated = null;
+ if (ColorDisplayManager.isNightDisplayAvailable(getContext())) {
+ // Reset the activated state.
+ mNightDisplayTintController.setActivated(null);
- setCoefficientMatrix(getContext(), DisplayTransformManager.needsLinearColorMatrix());
+ // Prepare the night display color transformation matrix.
+ mNightDisplayTintController
+ .setUp(getContext(), DisplayTransformManager.needsLinearColorMatrix());
+ mNightDisplayTintController.setMatrix(mNightDisplayController.getColorTemperature());
- // Prepare color transformation matrix.
- setMatrix(mNightDisplayController.getColorTemperature(), mMatrixNight);
+ // Initialize the current auto mode.
+ onNightDisplayAutoModeChanged(mNightDisplayController.getAutoMode());
- // Initialize the current auto mode.
- onNightDisplayAutoModeChanged(mNightDisplayController.getAutoMode());
+ // Force the initialization current activated state.
+ if (mNightDisplayTintController.isActivatedStateNotSet()) {
+ onNightDisplayActivated(mNightDisplayController.isActivated());
+ }
+ }
- // Force the initialization current activated state.
- if (mIsNightDisplayActivated == null) {
- onNightDisplayActivated(mNightDisplayController.isActivated());
+ if (ColorDisplayManager.isDisplayWhiteBalanceAvailable(getContext())) {
+ // Prepare the display white balance transform matrix.
+ mDisplayWhiteBalanceTintController
+ .setUp(getContext(), DisplayTransformManager.needsLinearColorMatrix());
+ if (mDisplayWhiteBalanceColorTemperature != null) {
+ mDisplayWhiteBalanceTintController
+ .setMatrix(mDisplayWhiteBalanceColorTemperature);
+ }
+
+ onDisplayWhiteBalanceEnabled(isDisplayWhiteBalanceSettingEnabled());
}
}
@@ -287,28 +380,31 @@
mNightDisplayController = null;
}
- if (mNightDisplayAutoMode != null) {
- mNightDisplayAutoMode.onStop();
- mNightDisplayAutoMode = null;
+ if (ColorDisplayManager.isNightDisplayAvailable(getContext())) {
+ if (mNightDisplayAutoMode != null) {
+ mNightDisplayAutoMode.onStop();
+ mNightDisplayAutoMode = null;
+ }
+ mNightDisplayTintController.endAnimator();
}
- if (mColorMatrixAnimator != null) {
- mColorMatrixAnimator.end();
- mColorMatrixAnimator = null;
+ if (ColorDisplayManager.isDisplayWhiteBalanceAvailable(getContext())) {
+ mDisplayWhiteBalanceTintController.endAnimator();
}
}
private void onNightDisplayActivated(boolean activated) {
- if (mIsNightDisplayActivated == null || mIsNightDisplayActivated != activated) {
+ if (mNightDisplayTintController.isActivatedStateNotSet()
+ || mNightDisplayTintController.isActivated() != activated) {
Slog.i(TAG, activated ? "Turning on night display" : "Turning off night display");
- mIsNightDisplayActivated = activated;
+ mNightDisplayTintController.setActivated(activated);
if (mNightDisplayAutoMode != null) {
mNightDisplayAutoMode.onActivated(activated);
}
- applyTint(false);
+ applyTint(mNightDisplayTintController, false);
}
}
@@ -348,8 +444,8 @@
}
private void onNightDisplayColorTemperatureChanged(int colorTemperature) {
- setMatrix(colorTemperature, mMatrixNight);
- applyTint(true);
+ mNightDisplayTintController.setMatrix(colorTemperature);
+ applyTint(mNightDisplayTintController, true);
}
private void onDisplayColorModeChanged(int mode) {
@@ -357,66 +453,53 @@
return;
}
- // Cancel the night display tint animator if it's running.
- if (mColorMatrixAnimator != null) {
- mColorMatrixAnimator.cancel();
+ mNightDisplayTintController.cancelAnimator();
+ mDisplayWhiteBalanceTintController.cancelAnimator();
+
+ mNightDisplayTintController
+ .setUp(getContext(), DisplayTransformManager.needsLinearColorMatrix(mode));
+ mNightDisplayTintController.setMatrix(mNightDisplayController.getColorTemperature());
+
+ mDisplayWhiteBalanceTintController
+ .setUp(getContext(), DisplayTransformManager.needsLinearColorMatrix(mode));
+ if (mDisplayWhiteBalanceColorTemperature != null) {
+ mDisplayWhiteBalanceTintController.setMatrix(mDisplayWhiteBalanceColorTemperature);
}
- setCoefficientMatrix(getContext(), DisplayTransformManager.needsLinearColorMatrix(mode));
- setMatrix(mNightDisplayController.getColorTemperature(), mMatrixNight);
-
final DisplayTransformManager dtm = getLocalService(DisplayTransformManager.class);
- dtm.setColorMode(mode, (mIsNightDisplayActivated != null && mIsNightDisplayActivated)
- ? mMatrixNight : MATRIX_IDENTITY);
+ dtm.setColorMode(mode, mNightDisplayTintController.getMatrix());
}
private void onAccessibilityTransformChanged() {
onDisplayColorModeChanged(mNightDisplayController.getColorMode());
}
- /**
- * Set coefficients based on whether the color matrix is linear or not.
- */
- private void setCoefficientMatrix(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]);
- }
- }
/**
* Applies current color temperature matrix, or removes it if deactivated.
*
* @param immediate {@code true} skips transition animation
*/
- private void applyTint(boolean immediate) {
- // Cancel the old animator if still running.
- if (mColorMatrixAnimator != null) {
- mColorMatrixAnimator.cancel();
- }
+ private void applyTint(TintController tintController, boolean immediate) {
+ tintController.cancelAnimator();
final DisplayTransformManager dtm = getLocalService(DisplayTransformManager.class);
- final float[] from = dtm.getColorMatrix(LEVEL_COLOR_MATRIX_NIGHT_DISPLAY);
- final float[] to = mIsNightDisplayActivated ? mMatrixNight : MATRIX_IDENTITY;
+ final float[] from = dtm.getColorMatrix(tintController.getLevel());
+ final float[] to = tintController.getMatrix();
if (immediate) {
- dtm.setColorMatrix(LEVEL_COLOR_MATRIX_NIGHT_DISPLAY, to);
+ dtm.setColorMatrix(tintController.getLevel(), to);
} else {
- mColorMatrixAnimator = ValueAnimator.ofObject(COLOR_MATRIX_EVALUATOR,
- from == null ? MATRIX_IDENTITY : from, to);
- mColorMatrixAnimator.setDuration(TRANSITION_DURATION);
- mColorMatrixAnimator.setInterpolator(AnimationUtils.loadInterpolator(
+ 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));
- 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);
- }
+ tintController.getAnimator().addUpdateListener((ValueAnimator animator) -> {
+ final float[] value = (float[]) animator.getAnimatedValue();
+ dtm.setColorMatrix(tintController.getLevel(), value);
});
- mColorMatrixAnimator.addListener(new AnimatorListenerAdapter() {
+ tintController.getAnimator().addListener(new AnimatorListenerAdapter() {
private boolean mIsCancelled;
@@ -431,42 +514,16 @@
// 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);
+ dtm.setColorMatrix(tintController.getLevel(), to);
}
- mColorMatrixAnimator = null;
+ tintController.setAnimator(null);
}
});
- mColorMatrixAnimator.start();
+ tintController.getAnimator().start();
}
}
/**
- * Set the color transformation {@code MATRIX_NIGHT} to the given color temperature.
- *
- * @param colorTemperature color temperature in Kelvin
- * @param outTemp the 4x4 display transformation matrix for that color temperature
- */
- private void setMatrix(int colorTemperature, float[] outTemp) {
- if (outTemp.length != 16) {
- Slog.d(TAG, "The display transformation matrix must be 4x4");
- return;
- }
-
- Matrix.setIdentityM(mMatrixNight, 0);
-
- final float squareTemperature = colorTemperature * colorTemperature;
- final float red = squareTemperature * mColorTempCoefficients[0]
- + colorTemperature * mColorTempCoefficients[1] + mColorTempCoefficients[2];
- final float green = squareTemperature * mColorTempCoefficients[3]
- + colorTemperature * mColorTempCoefficients[4] + mColorTempCoefficients[5];
- final float blue = squareTemperature * mColorTempCoefficients[6]
- + colorTemperature * mColorTempCoefficients[7] + mColorTempCoefficients[8];
- outTemp[0] = red;
- outTemp[5] = green;
- outTemp[10] = blue;
- }
-
- /**
* Returns the first date time corresponding to the local time that occurs before the provided
* date time.
*
@@ -498,6 +555,18 @@
return ldt.isBefore(compareTime) ? ldt.plusDays(1) : ldt;
}
+ private void onDisplayWhiteBalanceEnabled(boolean enabled) {
+ mDisplayWhiteBalanceTintController.setActivated(enabled);
+ if (mDisplayWhiteBalanceListener != null) {
+ mDisplayWhiteBalanceListener.onDisplayWhiteBalanceStatusChanged(enabled);
+ }
+ }
+
+ 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();
@@ -507,7 +576,7 @@
* Returns the last time the night display transform activation state was changed, or {@link
* LocalDateTime#MIN} if night display has never been activated.
*/
- private @NonNull LocalDateTime getNightDisplayLastActivatedTimeSetting() {
+ private LocalDateTime getNightDisplayLastActivatedTimeSetting() {
final ContentResolver cr = getContext().getContentResolver();
final String lastActivatedTime = Secure.getStringForUser(
cr, Secure.NIGHT_DISPLAY_LAST_ACTIVATED_TIME, getContext().getUserId());
@@ -577,11 +646,12 @@
}
}
- if (mIsNightDisplayActivated == null || mIsNightDisplayActivated != activate) {
+ if (mNightDisplayTintController.isActivatedStateNotSet() || (
+ mNightDisplayTintController.isActivated() != activate)) {
mNightDisplayController.setActivated(activate);
}
- updateNextAlarm(mIsNightDisplayActivated, now);
+ updateNextAlarm(mNightDisplayTintController.isActivated(), now);
}
private void updateNextAlarm(@Nullable Boolean activated, @NonNull LocalDateTime now) {
@@ -672,7 +742,8 @@
}
}
- if (mIsNightDisplayActivated == null || mIsNightDisplayActivated != activate) {
+ if (mNightDisplayTintController.isActivatedStateNotSet() || (
+ mNightDisplayTintController.isActivated() != activate)) {
mNightDisplayController.setActivated(activate);
}
}
@@ -724,6 +795,115 @@
}
}
+ 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;
+ }
+
+ /**
+ * 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.
+ mDisplayWhiteBalanceColorTemperature = cct;
+ mDisplayWhiteBalanceTintController.setMatrix(cct);
+
+ if (mDisplayWhiteBalanceTintController.isActivated()) {
+ applyTint(mDisplayWhiteBalanceTintController, true);
+ 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();
+ }
+ }
+
+ /**
+ * 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 BinderService extends IColorDisplayManager.Stub {
@Override