Add minimum brightness curve to dumpsys

Test: manual, adb dumpsys display and check result
Bug: 125234919

Change-Id: I24e7979b7a8b42041e9f4a36de4c142d70b27422

1 files changed, 14 insertions, 0 deletions

diff --git a/core/java/android/hardware/display/Curve.java b/core/java/android/hardware/display/Curve.java
index ac28fdd634ac..41f66f55b01e 100644
--- a/core/java/android/hardware/display/Curve.java
+++ b/core/java/android/hardware/display/Curve.java
@@ -59,4 +59,18 @@ public final class Curve implements Parcelable {
     public int describeContents() {
         return 0;
     }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder("[");
+        final int size = mX.length;
+        for (int i = 0; i < size; i++) {
+            if (i != 0) {
+                sb.append(", ");
+            }
+            sb.append("(").append(mX[i]).append(", ").append(mY[i]).append(")");
+        }
+        sb.append("]");
+        return sb.toString();
+    }
 }