Add UiBench jank and macrobench tests for saveLayer performance

Create 2 jank tests and 1 macrobench that measure saveLayer
performance:
- Fling a ListView, which has a vertical fading edge.
- Draw a canvas with 20 saveLayer/restore interleaved with other
drawText and drawRect ops.

Test: built and ran UiBench jank and macrobench tests.
Change-Id: I5a50feb7431d597c92c7a49031505d41f397d175

4 files changed, 162 insertions, 1 deletions

diff --git a/tests/UiBench/src/com/android/test/uibench/FadingEdgeListActivity.java b/tests/UiBench/src/com/android/test/uibench/FadingEdgeListActivity.java
new file mode 100644
index 000000000000..3241e669fb1d
--- /dev/null
+++ b/tests/UiBench/src/com/android/test/uibench/FadingEdgeListActivity.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2017 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.uibench;
+
+import android.support.v4.app.ListFragment;
+import android.widget.ArrayAdapter;
+import android.widget.ListAdapter;
+
+import com.android.test.uibench.listview.CompatListActivity;
+import com.android.test.uibench.listview.FadingEdgeListFragment;
+
+public class FadingEdgeListActivity extends CompatListActivity {
+
+    @Override
+    protected ListAdapter createListAdapter() {
+        return new ArrayAdapter<>(this, android.R.layout.simple_list_item_1,
+                TextUtils.buildSimpleStringList(40));
+    }
+
+    @Override
+    protected ListFragment createListFragment() {
+        return (ListFragment)new FadingEdgeListFragment();
+    }
+}
diff --git a/tests/UiBench/src/com/android/test/uibench/SaveLayerInterleaveActivity.java b/tests/UiBench/src/com/android/test/uibench/SaveLayerInterleaveActivity.java
new file mode 100644
index 000000000000..eec91cb38066
--- /dev/null
+++ b/tests/UiBench/src/com/android/test/uibench/SaveLayerInterleaveActivity.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2017 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.uibench;
+
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.ColorFilter;
+import android.graphics.Paint;
+import android.graphics.PixelFormat;
+import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+
+/**
+ * Test Canvas.saveLayer performance by interleaving drawText/drawRect with saveLayer.
+ * This test will be used to measure if drawing interleaved layers at the beginning of a frame will
+ * decrease FBO switching overhead (this is a future optimization in SkiaGL rendering pipeline).
+ */
+public class SaveLayerInterleaveActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        getWindow().setBackgroundDrawable(new Drawable() {
+            private final Paint mBluePaint = new Paint(Paint.ANTI_ALIAS_FLAG);
+            private final Paint mGreenPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
+
+            @Override
+            public void setAlpha(int alpha) {
+            }
+
+            @Override
+            public int getOpacity() {
+                return PixelFormat.OPAQUE;
+            }
+
+            @Override
+            public void setColorFilter(ColorFilter colorFilter) {
+            }
+
+            @Override
+            public void draw(Canvas canvas) {
+                canvas.drawColor(Color.RED);
+
+                Rect bounds = getBounds();
+                int regions = 20;
+                int smallRectHeight = (bounds.height()/regions);
+                int padding = smallRectHeight / 4;
+                int top = bounds.top;
+                mBluePaint.setColor(Color.BLUE);
+                mBluePaint.setTextSize(padding);
+                mGreenPaint.setColor(Color.GREEN);
+                mGreenPaint.setTextSize(padding);
+
+                //interleave drawText and drawRect with saveLayer ops
+                for (int i = 0; i < regions; i++, top += smallRectHeight) {
+                    canvas.saveLayer(bounds.left, top, bounds.right, top + padding,
+                            mBluePaint);
+                    canvas.drawColor(Color.YELLOW);
+                    canvas.drawText("offscreen line "+ i, bounds.left, top + padding,
+                            mBluePaint);
+                    canvas.restore();
+
+                    Rect partX = new Rect(bounds.left, top + padding,
+                            bounds.right,top + smallRectHeight - padding);
+                    canvas.drawRect(partX, mBluePaint);
+                    canvas.drawText("onscreen line "+ i, bounds.left,
+                            top + smallRectHeight - padding, mGreenPaint);
+                }
+
+                invalidateSelf();
+            }
+        });
+    }
+}
diff --git a/tests/UiBench/src/com/android/test/uibench/listview/CompatListActivity.java b/tests/UiBench/src/com/android/test/uibench/listview/CompatListActivity.java
index 214c07463fd7..bb7f4a302f8c 100644
--- a/tests/UiBench/src/com/android/test/uibench/listview/CompatListActivity.java
+++ b/tests/UiBench/src/com/android/test/uibench/listview/CompatListActivity.java
@@ -29,11 +29,15 @@ public abstract class CompatListActivity extends AppCompatActivity {
 
         FragmentManager fm = getSupportFragmentManager();
         if (fm.findFragmentById(android.R.id.content) == null) {
-            ListFragment listFragment = new ListFragment();
+            ListFragment listFragment = createListFragment();
             listFragment.setListAdapter(createListAdapter());
             fm.beginTransaction().add(android.R.id.content, listFragment).commit();
         }
     }
 
     protected abstract ListAdapter createListAdapter();
+
+    protected ListFragment createListFragment() {
+        return new ListFragment();
+    }
 }
diff --git a/tests/UiBench/src/com/android/test/uibench/listview/FadingEdgeListFragment.java b/tests/UiBench/src/com/android/test/uibench/listview/FadingEdgeListFragment.java
new file mode 100644
index 000000000000..a018b40e8528
--- /dev/null
+++ b/tests/UiBench/src/com/android/test/uibench/listview/FadingEdgeListFragment.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2017 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.uibench.listview;
+
+import android.os.Bundle;
+import android.support.v4.app.ListFragment;
+import android.widget.ListView;
+
+public class FadingEdgeListFragment extends ListFragment {
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        ListView listView = getListView();
+        listView.setVerticalFadingEdgeEnabled(true);
+        listView.setFadingEdgeLength(500);
+        super.onActivityCreated(savedInstanceState);
+    }
+}