Merge "Have TurbulenceNoiseController respect config noise moves." into main
diff --git a/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseController.kt b/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseController.kt
index 535c2d3..e862f0c 100644
--- a/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseController.kt
+++ b/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseController.kt
@@ -17,7 +17,6 @@
 
 import android.view.View
 import androidx.annotation.VisibleForTesting
-import java.util.Random
 
 /** Plays [TurbulenceNoiseView] in ease-in, main (no easing), and ease-out order. */
 class TurbulenceNoiseController(private val turbulenceNoiseView: TurbulenceNoiseView) {
@@ -37,8 +36,6 @@
         }
     }
 
-    private val random = Random()
-
     /** Current state of the animation. */
     @VisibleForTesting
     var state: AnimationState = AnimationState.NOT_PLAYING
@@ -95,12 +92,7 @@
         }
         state = AnimationState.EASE_IN
 
-        // Add offset to avoid repetitive noise.
-        turbulenceNoiseView.playEaseIn(
-            offsetX = random.nextFloat(),
-            offsetY = random.nextFloat(),
-            this::playMainAnimation
-        )
+        turbulenceNoiseView.playEaseIn(this::playMainAnimation)
     }
 
     private fun playMainAnimation() {
diff --git a/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseView.kt b/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseView.kt
index c59bc10..5e72e3b 100644
--- a/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseView.kt
+++ b/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseView.kt
@@ -109,7 +109,7 @@
 
     /** Plays the turbulence noise with linear ease-in. */
     @VisibleForTesting(otherwise = VisibleForTesting.PACKAGE_PRIVATE)
-    fun playEaseIn(offsetX: Float = 0f, offsetY: Float = 0f, onAnimationEnd: Runnable? = null) {
+    fun playEaseIn(onAnimationEnd: Runnable? = null) {
         if (noiseConfig == null) {
             return
         }
@@ -129,8 +129,8 @@
             val progress = updateListener.animatedValue as Float
 
             shader.setNoiseMove(
-                offsetX + initialX + timeInSec * config.noiseMoveSpeedX,
-                offsetY + initialY + timeInSec * config.noiseMoveSpeedY,
+                initialX + timeInSec * config.noiseMoveSpeedX,
+                initialY + timeInSec * config.noiseMoveSpeedY,
                 initialZ + timeInSec * config.noiseMoveSpeedZ
             )
 
diff --git a/packages/SystemUI/src/com/android/systemui/media/controls/ui/controller/MediaControlPanel.java b/packages/SystemUI/src/com/android/systemui/media/controls/ui/controller/MediaControlPanel.java
index e8ad4d3..4e940f1 100644
--- a/packages/SystemUI/src/com/android/systemui/media/controls/ui/controller/MediaControlPanel.java
+++ b/packages/SystemUI/src/com/android/systemui/media/controls/ui/controller/MediaControlPanel.java
@@ -260,7 +260,6 @@
     private TurbulenceNoiseController mTurbulenceNoiseController;
     private LoadingEffect mLoadingEffect;
     private final GlobalSettings mGlobalSettings;
-    private final Random mRandom = new Random();
     private TurbulenceNoiseAnimationConfig mTurbulenceNoiseAnimationConfig;
     private boolean mWasPlaying = false;
     private boolean mButtonClicked = false;
@@ -1294,13 +1293,14 @@
                 mMediaViewHolder.getTurbulenceNoiseView();
         int width = targetView.getWidth();
         int height = targetView.getHeight();
+        Random random = new Random();
 
         return new TurbulenceNoiseAnimationConfig(
                 /* gridCount= */ 2.14f,
                 TurbulenceNoiseAnimationConfig.DEFAULT_LUMINOSITY_MULTIPLIER,
-                /* noiseOffsetX= */ mRandom.nextFloat(),
-                /* noiseOffsetY= */ mRandom.nextFloat(),
-                /* noiseOffsetZ= */ mRandom.nextFloat(),
+                /* noiseOffsetX= */ random.nextFloat(),
+                /* noiseOffsetY= */ random.nextFloat(),
+                /* noiseOffsetZ= */ random.nextFloat(),
                 /* noiseMoveSpeedX= */ 0.42f,
                 /* noiseMoveSpeedY= */ 0f,
                 TurbulenceNoiseAnimationConfig.DEFAULT_NOISE_SPEED_Z,
diff --git a/packages/SystemUI/tests/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseControllerTest.kt b/packages/SystemUI/tests/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseControllerTest.kt
index 203096a..08b49f0 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseControllerTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseControllerTest.kt
@@ -166,4 +166,28 @@
             assertThat(config.color).isEqualTo(expectedColor)
         }
     }
+
+    @Test
+    fun play_initializesShader() {
+        val expectedNoiseOffset = floatArrayOf(0.1f, 0.2f, 0.3f)
+        val config =
+            TurbulenceNoiseAnimationConfig(
+                noiseOffsetX = expectedNoiseOffset[0],
+                noiseOffsetY = expectedNoiseOffset[1],
+                noiseOffsetZ = expectedNoiseOffset[2]
+            )
+        val turbulenceNoiseView = TurbulenceNoiseView(context, null)
+        val turbulenceNoiseController = TurbulenceNoiseController(turbulenceNoiseView)
+
+        fakeExecutor.execute {
+            turbulenceNoiseController.play(SIMPLEX_NOISE, config)
+
+            assertThat(turbulenceNoiseView.noiseConfig).isNotNull()
+            val shader = turbulenceNoiseView.turbulenceNoiseShader!!
+            assertThat(shader).isNotNull()
+            assertThat(shader.noiseOffsetX).isEqualTo(expectedNoiseOffset[0])
+            assertThat(shader.noiseOffsetY).isEqualTo(expectedNoiseOffset[1])
+            assertThat(shader.noiseOffsetZ).isEqualTo(expectedNoiseOffset[2])
+        }
+    }
 }