Add setBackdropRenderEffect for View and RenderNode.
support visual effects for backdrop contents of a View or RenderNode.
Test: added unit test & hwui_unit passes
Test: added BackdropBlurActivity in HwAccelerationTest, build & run it
Signed-off-by: Dongya Jiang <[email protected]>
Change-Id: If1ac1b8aee53667f175e8fa80ecfc7bdfa28173d
Merged-In: If1ac1b8aee53667f175e8fa80ecfc7bdfa28173d
diff --git a/tests/HwAccelerationTest/AndroidManifest.xml b/tests/HwAccelerationTest/AndroidManifest.xml
index 80c7a21..db3a992 100644
--- a/tests/HwAccelerationTest/AndroidManifest.xml
+++ b/tests/HwAccelerationTest/AndroidManifest.xml
@@ -789,6 +789,15 @@
</intent-filter>
</activity>
+ <activity android:name="BackdropBlurActivity"
+ android:label="RenderEffect/BackdropBlur"
+ android:exported="true">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN"/>
+ <category android:name="com.android.test.hwui.TEST"/>
+ </intent-filter>
+ </activity>
+
<activity android:name="BlurActivity"
android:label="RenderEffect/Blur"
android:exported="true">
diff --git a/tests/HwAccelerationTest/res/drawable/robot_repeated.xml b/tests/HwAccelerationTest/res/drawable/robot_repeated.xml
new file mode 100644
index 0000000..bbb15b7
--- /dev/null
+++ b/tests/HwAccelerationTest/res/drawable/robot_repeated.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2022 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
+ android:src="@drawable/robot"
+ android:tileMode="repeat" android:gravity="fill" />
\ No newline at end of file
diff --git a/tests/HwAccelerationTest/src/com/android/test/hwui/BackdropBlurActivity.java b/tests/HwAccelerationTest/src/com/android/test/hwui/BackdropBlurActivity.java
new file mode 100644
index 0000000..8086b29
--- /dev/null
+++ b/tests/HwAccelerationTest/src/com/android/test/hwui/BackdropBlurActivity.java
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.test.hwui;
+
+import android.app.Activity;
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.ColorMatrix;
+import android.graphics.ColorMatrixColorFilter;
+import android.graphics.Outline;
+import android.graphics.RenderEffect;
+import android.graphics.Shader;
+import android.os.Bundle;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.ViewOutlineProvider;
+import android.view.animation.DecelerateInterpolator;
+import android.widget.FrameLayout;
+import android.widget.ScrollView;
+
+@SuppressWarnings({"UnusedDeclaration"})
+public class BackdropBlurActivity extends Activity {
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+
+ final ScrollView scrollView = new ScrollView(this);
+ final FrameLayout innerFrame = new FrameLayout(this);
+ final View backgroundView = new View(this);
+ backgroundView.setBackgroundResource(R.drawable.robot_repeated);
+ innerFrame.addView(backgroundView, ViewGroup.LayoutParams.MATCH_PARENT, 10000);
+ scrollView.addView(innerFrame,
+ ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
+
+ final FrameLayout contentView = new FrameLayout(this);
+ contentView.addView(scrollView,
+ ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
+ contentView.addView(new BackdropBlurView(this), 300, 300);
+ setContentView(contentView);
+ }
+
+ private static class BackdropBlurView extends View {
+ private final float mBlurRadius = 60f;
+ private final float mSaturation = 1.8f;
+
+ private float mDownOffsetX;
+ private float mDownOffsetY;
+
+ BackdropBlurView(Context c) {
+ super(c);
+
+ // init RenderEffect.
+ final RenderEffect blurEffect = RenderEffect.createBlurEffect(
+ mBlurRadius, mBlurRadius,
+ null, Shader.TileMode.MIRROR // TileMode.MIRROR is better for blur.
+ );
+
+ final ColorMatrix colorMatrix = new ColorMatrix();
+ colorMatrix.setSaturation(mSaturation);
+ final RenderEffect effect = RenderEffect.createColorFilterEffect(
+ new ColorMatrixColorFilter(colorMatrix), blurEffect
+ );
+ setBackdropRenderEffect(effect);
+
+ // clip to a round outline.
+ setOutlineProvider(new ViewOutlineProvider() {
+ @Override
+ public void getOutline(View v, Outline outline) {
+ outline.setOval(0, 0, v.getWidth(), v.getHeight());
+ }
+ });
+ setClipToOutline(true);
+
+ animate().setInterpolator(new DecelerateInterpolator(2.0f));
+ }
+
+ @Override
+ protected void onDraw(Canvas canvas) {
+ super.onDraw(canvas);
+
+ canvas.drawColor(0x99F0F0F0);
+ }
+
+ @Override
+ public boolean onTouchEvent(MotionEvent event) {
+ switch (event.getActionMasked()) {
+ case MotionEvent.ACTION_DOWN:
+ mDownOffsetX = event.getRawX() - getTranslationX();
+ mDownOffsetY = event.getRawY() - getTranslationY();
+ animate().scaleX(1.5f).scaleY(1.5f).start();
+ break;
+ case MotionEvent.ACTION_UP:
+ case MotionEvent.ACTION_CANCEL:
+ animate().scaleX(1f).scaleY(1f).start();
+ break;
+ case MotionEvent.ACTION_MOVE:
+ setTranslationX(event.getRawX() - mDownOffsetX);
+ setTranslationY(event.getRawY() - mDownOffsetY);
+ break;
+ }
+ return true;
+ }
+ }
+}
