Configure DWB transition time per-device

Default is still 3000 millis

Bug: 265363036
Test: builds
Change-Id: I16534383c539b71e1dd02c4ecdfa1fa40d2bfed0

core/res/res/values/config.xml

@@ -984,6 +984,9 @@
     <!-- Boolean indicating whether light mode is allowed when DWB is turned on. -->
     <bool name="config_displayWhiteBalanceLightModeAllowed">true</bool>
 
+    <!-- Duration, in milliseconds, of the display white balance animated transitions. -->
+    <integer name="config_displayWhiteBalanceTransitionTime">3000</integer>
+
     <!-- Device states where the sensor based rotation values should be reversed around the Z axis
          for the default display.
          TODO(b/265312193): Remove this workaround when this bug is fixed.-->

core/res/res/values/symbols.xml

@@ -3435,6 +3435,7 @@
   <java-symbol type="array" name="config_displayWhiteBalanceDisplayPrimaries" />
   <java-symbol type="array" name="config_displayWhiteBalanceDisplayNominalWhite" />
   <java-symbol type="bool" name="config_displayWhiteBalanceLightModeAllowed" />
+  <java-symbol type="integer" name="config_displayWhiteBalanceTransitionTime" />
 
   <!-- Device states where the sensor based rotation values should be reversed around the Z axis
        for the default display.

services/core/java/com/android/server/display/color/ColorDisplayService.java

@@ -107,11 +107,6 @@ public final class ColorDisplayService extends SystemService {
         Matrix.setIdentityM(MATRIX_IDENTITY, 0);
     }
 
-    /**
-     * The transition time, in milliseconds, for Night Display to turn on/off.
-     */
-    private static final long TRANSITION_DURATION = 3000L;
-
     private static final int MSG_USER_CHANGED = 0;
     private static final int MSG_SET_UP = 1;
     private static final int MSG_APPLY_NIGHT_DISPLAY_IMMEDIATE = 2;
@@ -661,7 +656,7 @@ public final class ColorDisplayService extends SystemService {
             TintValueAnimator valueAnimator = TintValueAnimator.ofMatrix(COLOR_MATRIX_EVALUATOR,
                     from == null ? MATRIX_IDENTITY : from, to);
             tintController.setAnimator(valueAnimator);
-            valueAnimator.setDuration(TRANSITION_DURATION);
+            valueAnimator.setDuration(tintController.getTransitionDurationMilliseconds());
             valueAnimator.setInterpolator(AnimationUtils.loadInterpolator(
                     getContext(), android.R.interpolator.fast_out_slow_in));
             valueAnimator.addUpdateListener((ValueAnimator animator) -> {

services/core/java/com/android/server/display/color/DisplayWhiteBalanceTintController.java

@@ -59,7 +59,8 @@ final class DisplayWhiteBalanceTintController extends TintController {
     private float[] mCurrentColorTemperatureXYZ;
     @VisibleForTesting
     boolean mSetUp = false;
-    private float[] mMatrixDisplayWhiteBalance = new float[16];
+    private final float[] mMatrixDisplayWhiteBalance = new float[16];
+    private long mTransitionDuration;
     private Boolean mIsAvailable;
     // This feature becomes disallowed if the device is in an unsupported strong/light state.
     private boolean mIsAllowed = true;
@@ -119,6 +120,9 @@ final class DisplayWhiteBalanceTintController extends TintController {
         final int colorTemperature = res.getInteger(
                 R.integer.config_displayWhiteBalanceColorTemperatureDefault);
 
+        mTransitionDuration = res.getInteger(
+                R.integer.config_displayWhiteBalanceTransitionTime);
+
         synchronized (mLock) {
             mDisplayColorSpaceRGB = displayColorSpaceRGB;
             mDisplayNominalWhiteXYZ = displayNominalWhiteXYZ;
@@ -231,6 +235,11 @@ final class DisplayWhiteBalanceTintController extends TintController {
         return mIsAvailable;
     }
 
+    @Override
+    public long getTransitionDurationMilliseconds() {
+        return mTransitionDuration;
+    }
+
     @Override
     public void dump(PrintWriter pw) {
         synchronized (mLock) {

services/core/java/com/android/server/display/color/TintController.java

@@ -16,7 +16,6 @@
 
 package com.android.server.display.color;
 
-import android.animation.ValueAnimator;
 import android.content.Context;
 import android.util.Slog;
 
@@ -24,6 +23,11 @@ import java.io.PrintWriter;
 
 abstract class TintController {
 
+    /**
+     * The default transition time, in milliseconds, for color transforms to turn on/off.
+     */
+    private static final long TRANSITION_DURATION = 3000L;
+
     private ColorDisplayService.TintValueAnimator mAnimator;
     private Boolean mIsActivated;
 
@@ -66,6 +70,10 @@ abstract class TintController {
         return mIsActivated == null;
     }
 
+    public long getTransitionDurationMilliseconds() {
+        return TRANSITION_DURATION;
+    }
+
     /**
      * Dump debug information.
      */