Log display white balance intermediate data

Bug: 139488234
Test: atest frameworks/base/services/tests/servicestests/src/com/android/server/display/color/
Change-Id: Ifb11a6d80391d4629b507030a4db35fb2323b2ed

4 files changed, 50 insertions, 26 deletions

diff --git a/services/core/java/com/android/server/display/color/ColorDisplayService.java b/services/core/java/com/android/server/display/color/ColorDisplayService.java
index 7fb5b191a9b0..0bf43b6d1b9c 100644
--- a/services/core/java/com/android/server/display/color/ColorDisplayService.java
+++ b/services/core/java/com/android/server/display/color/ColorDisplayService.java
@@ -609,6 +609,9 @@ public final class ColorDisplayService extends SystemService {
 
                 @Override
                 public void onAnimationEnd(Animator animator) {
+                    Slog.d(TAG, tintController.getClass().getSimpleName()
+                            + " Animation cancelled: " + mIsCancelled
+                            + " to matrix: " + TintController.matrixToString(to, 16));
                     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
@@ -1314,8 +1317,10 @@ public final class ColorDisplayService extends SystemService {
          * Reset the CCT value for the display white balance transform to its default value.
          */
         public boolean resetDisplayWhiteBalanceColorTemperature() {
-            return setDisplayWhiteBalanceColorTemperature(getContext().getResources()
-                    .getInteger(R.integer.config_displayWhiteBalanceColorTemperatureDefault));
+            int temperatureDefault = getContext().getResources()
+                    .getInteger(R.integer.config_displayWhiteBalanceColorTemperatureDefault);
+            Slog.d(TAG, "resetDisplayWhiteBalanceColorTemperature: " + temperatureDefault);
+            return setDisplayWhiteBalanceColorTemperature(temperatureDefault);
         }
 
         /**
diff --git a/services/core/java/com/android/server/display/color/DisplayWhiteBalanceTintController.java b/services/core/java/com/android/server/display/color/DisplayWhiteBalanceTintController.java
index d2c6cd9f1007..3f1c222ab520 100644
--- a/services/core/java/com/android/server/display/color/DisplayWhiteBalanceTintController.java
+++ b/services/core/java/com/android/server/display/color/DisplayWhiteBalanceTintController.java
@@ -149,8 +149,6 @@ final class DisplayWhiteBalanceTintController extends TintController {
             cct = mTemperatureMax;
         }
 
-        Slog.d(ColorDisplayService.TAG, "setDisplayWhiteBalanceTemperatureMatrix: cct = " + cct);
-
         synchronized (mLock) {
             mCurrentColorTemperature = cct;
 
@@ -185,6 +183,9 @@ final class DisplayWhiteBalanceTintController extends TintController {
             java.lang.System.arraycopy(result, 3, mMatrixDisplayWhiteBalance, 4, 3);
             java.lang.System.arraycopy(result, 6, mMatrixDisplayWhiteBalance, 8, 3);
         }
+
+        Slog.d(ColorDisplayService.TAG, "setDisplayWhiteBalanceTemperatureMatrix: cct = " + cct
+                + " matrix = " + matrixToString(mMatrixDisplayWhiteBalance, 16));
     }
 
     @Override
@@ -225,28 +226,6 @@ final class DisplayWhiteBalanceTintController extends TintController {
         }
     }
 
-    /**
-     * Format a given matrix into a string.
-     *
-     * @param matrix the matrix to format
-     * @param columns number of columns in the matrix
-     */
-    private String matrixToString(float[] matrix, int columns) {
-        if (matrix == null || columns <= 0) {
-            Slog.e(ColorDisplayService.TAG, "Invalid arguments when formatting matrix to string");
-            return "";
-        }
-
-        final StringBuilder sb = new StringBuilder("");
-        for (int i = 0; i < matrix.length; i++) {
-            if (i % columns == 0) {
-                sb.append("\n      ");
-            }
-            sb.append(String.format("%9.6f", matrix[i]));
-        }
-        return sb.toString();
-    }
-
     private ColorSpace.Rgb makeRgbColorSpaceFromXYZ(float[] redGreenBlueXYZ, float[] whiteXYZ) {
         return new ColorSpace.Rgb(
                 "Display Color Space",
diff --git a/services/core/java/com/android/server/display/color/TintController.java b/services/core/java/com/android/server/display/color/TintController.java
index b291c645027a..8d8b9b2af04e 100644
--- a/services/core/java/com/android/server/display/color/TintController.java
+++ b/services/core/java/com/android/server/display/color/TintController.java
@@ -18,6 +18,7 @@ package com.android.server.display.color;
 
 import android.animation.ValueAnimator;
 import android.content.Context;
+import android.util.Slog;
 
 import java.io.PrintWriter;
 
@@ -95,4 +96,29 @@ abstract class TintController {
      * Returns whether or not this transform type is available on this device.
      */
     public abstract boolean isAvailable(Context context);
+
+    /**
+     * Format a given matrix into a string.
+     *
+     * @param matrix the matrix to format
+     * @param columns number of columns in the matrix
+     */
+    static String matrixToString(float[] matrix, int columns) {
+        if (matrix == null || columns <= 0) {
+            Slog.e(ColorDisplayService.TAG, "Invalid arguments when formatting matrix to string,"
+                    + " matrix is null: " + (matrix == null)
+                    + " columns: " + columns);
+            return "";
+        }
+
+        final StringBuilder sb = new StringBuilder("");
+        for (int i = 0; i < matrix.length; i++) {
+            if (i % columns == 0) {
+                sb.append("\n      ");
+            }
+            sb.append(String.format("%9.6f", matrix[i]));
+        }
+        return sb.toString();
+    }
+
 }
diff --git a/services/core/java/com/android/server/display/whitebalance/DisplayWhiteBalanceController.java b/services/core/java/com/android/server/display/whitebalance/DisplayWhiteBalanceController.java
index 02ec10e2d49d..7b1f4c3222f3 100644
--- a/services/core/java/com/android/server/display/whitebalance/DisplayWhiteBalanceController.java
+++ b/services/core/java/com/android/server/display/whitebalance/DisplayWhiteBalanceController.java
@@ -95,6 +95,11 @@ public class DisplayWhiteBalanceController implements
     // A piecewise linear relationship between high light brightness and high light bias.
     private Spline.LinearSpline mHighLightAmbientBrightnessToBiasSpline;
 
+    private float mLatestAmbientColorTemperature;
+    private float mLatestAmbientBrightness;
+    private float mLatestLowLightBias;
+    private float mLatestHighLightBias;
+
     /**
      * @param brightnessSensor
      *      The sensor used to detect changes in the ambient brightness.
@@ -348,6 +353,7 @@ public class DisplayWhiteBalanceController implements
     public void updateAmbientColorTemperature() {
         final long time = System.currentTimeMillis();
         float ambientColorTemperature = mColorTemperatureFilter.getEstimate(time);
+        mLatestAmbientColorTemperature = ambientColorTemperature;
 
         if (mAmbientToDisplayColorTemperatureSpline != null && ambientColorTemperature != -1.0f) {
             ambientColorTemperature =
@@ -355,6 +361,7 @@ public class DisplayWhiteBalanceController implements
         }
 
         float ambientBrightness = mBrightnessFilter.getEstimate(time);
+        mLatestAmbientBrightness = ambientBrightness;
 
         if (ambientColorTemperature != -1.0f &&
                 mLowLightAmbientBrightnessToBiasSpline != null) {
@@ -362,6 +369,7 @@ public class DisplayWhiteBalanceController implements
             ambientColorTemperature =
                     bias * ambientColorTemperature + (1.0f - bias)
                     * mLowLightAmbientColorTemperature;
+            mLatestLowLightBias = bias;
         }
         if (ambientColorTemperature != -1.0f &&
                 mHighLightAmbientBrightnessToBiasSpline != null) {
@@ -369,6 +377,7 @@ public class DisplayWhiteBalanceController implements
             ambientColorTemperature =
                     (1.0f - bias) * ambientColorTemperature + bias
                     * mHighLightAmbientColorTemperature;
+            mLatestHighLightBias = bias;
         }
 
         if (mAmbientColorTemperatureOverride != -1.0f) {
@@ -426,6 +435,11 @@ public class DisplayWhiteBalanceController implements
         }
         mPendingAmbientColorTemperature = -1.0f;
         mAmbientColorTemperatureHistory.add(mAmbientColorTemperature);
+        Slog.d(TAG, "Display cct: " + mAmbientColorTemperature
+                + " Latest ambient cct: " + mLatestAmbientColorTemperature
+                + " Latest ambient lux: " + mLatestAmbientBrightness
+                + " Latest low light bias: " + mLatestLowLightBias
+                + " Latest high light bias: " + mLatestHighLightBias);
         mColorDisplayServiceInternal.setDisplayWhiteBalanceColorTemperature(
                 (int) mAmbientColorTemperature);
         mLastAmbientColorTemperature = mAmbientColorTemperature;