Creating HW bitmaps from RenderNode

Allows creating a HW Bitmap from the drawing
commands of a RenderNode.

Bug: 38507414
Bug: 37698012
Test: Sample in HwAccelerationTest

Change-Id: I57c60b2c8bf5194f4412ad4b7f1c1f35e2e4c757

tests/HwAccelerationTest/AndroidManifest.xml

@@ -112,6 +112,15 @@
             </intent-filter>
         </activity>
 
+        <activity
+            android:name="DrawIntoHwBitmapActivity"
+            android:label="Bitmaps/DrawIntoHwBitmap">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="com.android.test.hwui.TEST" />
+            </intent-filter>
+        </activity>
+
         <activity
                 android:name="PathOffsetActivity"
                 android:label="Path/Offset">

tests/HwAccelerationTest/src/com/android/test/hwui/DrawIntoHwBitmapActivity.java

@@ -0,0 +1,65 @@
+/*
+ * 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.hwui;
+
+import static android.graphics.GraphicBuffer.USAGE_HW_TEXTURE;
+import static android.graphics.GraphicBuffer.USAGE_SW_READ_NEVER;
+import static android.graphics.GraphicBuffer.USAGE_SW_WRITE_NEVER;
+import static android.graphics.GraphicBuffer.USAGE_SW_WRITE_RARELY;
+
+import android.app.Activity;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.GraphicBuffer;
+import android.graphics.Paint;
+import android.graphics.PixelFormat;
+import android.graphics.SurfaceTexture;
+import android.os.Bundle;
+import android.view.DisplayListCanvas;
+import android.view.RenderNode;
+import android.view.Surface;
+import android.view.ThreadedRenderer;
+import android.widget.ImageView;
+
+public class DrawIntoHwBitmapActivity extends Activity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        ImageView view = new ImageView(this);
+        view.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
+        setContentView(view);
+        view.setImageBitmap(createBitmap());
+    }
+
+    Bitmap createBitmap() {
+        RenderNode node = RenderNode.create("HwuiCanvas", null);
+        node.setLeftTopRightBottom(0, 0, 500, 500);
+        node.setClipToBounds(false);
+        DisplayListCanvas canvas = node.start(500, 500);
+        Paint p = new Paint();
+        p.setColor(Color.BLACK);
+        p.setTextSize(20 * getResources().getDisplayMetrics().density);
+        canvas.drawColor(0xFF2196F3);
+        p.setColor(0xFFBBDEFB);
+        canvas.drawRect(0, 0, 500, 100, p);
+        p.setColor(Color.BLACK);
+        canvas.drawText("Hello, World!", 0, 90, p);
+        node.end(canvas);
+        return ThreadedRenderer.createHardwareBitmap(node, 500, 500);
+    }
+}