Add support for paths.

Rendering is implementing by rasterizing the paths into A8 textures.
This cna be extremely inefficient if the path changes often.

Change-Id: I609343f304ae38e0d319359403ee73b9b5b3c93a

2 files changed, 153 insertions, 0 deletions

diff --git a/tests/HwAccelerationTest/AndroidManifest.xml b/tests/HwAccelerationTest/AndroidManifest.xml
index ef18787..5dc720f 100644
--- a/tests/HwAccelerationTest/AndroidManifest.xml
+++ b/tests/HwAccelerationTest/AndroidManifest.xml
@@ -152,6 +152,15 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+
+        <activity
+                android:name="PathsActivity"
+                android:label="_Paths">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
                 
     </application>
 </manifest>
diff --git a/tests/HwAccelerationTest/src/com/google/android/test/hwui/PathsActivity.java b/tests/HwAccelerationTest/src/com/google/android/test/hwui/PathsActivity.java
new file mode 100644
index 0000000..39d9942
--- /dev/null
+++ b/tests/HwAccelerationTest/src/com/google/android/test/hwui/PathsActivity.java
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2010 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.google.android.test.hwui;
+
+import android.app.Activity;
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.BitmapShader;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.Path;
+import android.graphics.RectF;
+import android.os.Bundle;
+import android.view.View;
+
+@SuppressWarnings({"UnusedDeclaration"})
+public class PathsActivity extends Activity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        final PathsView view = new PathsView(this);
+        setContentView(view);
+    }
+
+    static class PathsView extends View {
+        private final Bitmap mBitmap1;
+        private final Paint mSmallPaint;
+        private final Paint mMediumPaint;
+        private final Paint mLargePaint;
+        private final BitmapShader mShader;
+        private final Path mPath;
+        private final RectF mPathBounds;
+        private final Paint mBoundsPaint;
+        private final Bitmap mBitmap;
+        private final float mOffset;
+        private final Paint mLinePaint;
+
+        PathsView(Context c) {
+            super(c);
+
+            mBitmap1 = BitmapFactory.decodeResource(c.getResources(), R.drawable.sunset1);
+
+            mSmallPaint = new Paint();
+            mSmallPaint.setAntiAlias(true);
+            mSmallPaint.setColor(0xffff0000);
+            mSmallPaint.setStrokeWidth(1.0f);
+            mSmallPaint.setStyle(Paint.Style.STROKE);
+            
+            mLinePaint = new Paint();
+            mLinePaint.setAntiAlias(true);
+            mLinePaint.setColor(0xffff00ff);
+            mLinePaint.setStrokeWidth(1.0f);
+            mLinePaint.setStyle(Paint.Style.STROKE);
+
+            mMediumPaint = new Paint();
+            mMediumPaint.setAntiAlias(true);
+            mMediumPaint.setColor(0xff0000ff);
+            mMediumPaint.setStrokeWidth(10.0f);
+            mMediumPaint.setStyle(Paint.Style.STROKE);
+
+            mLargePaint = new Paint();
+            mLargePaint.setAntiAlias(true);
+            mLargePaint.setColor(0xff00ff00);
+            mLargePaint.setStrokeWidth(15.0f);
+            mLargePaint.setStyle(Paint.Style.FILL);
+
+            mShader = new BitmapShader(mBitmap1, BitmapShader.TileMode.MIRROR,
+                    BitmapShader.TileMode.MIRROR);
+
+            mPath = new Path();
+            mPath.moveTo(0.0f, 0.0f);
+            mPath.cubicTo(0.0f, 0.0f, 100.0f, 150.0f, 100.0f, 200.0f);
+            mPath.cubicTo(100.0f, 200.0f, 50.0f, 300.0f, -80.0f, 200.0f);
+            mPath.cubicTo(-80.0f, 200.0f, 100.0f, 200.0f, 200.0f, 0.0f);
+
+            mPathBounds = new RectF();
+            mPath.computeBounds(mPathBounds, true);
+
+            mBoundsPaint = new Paint();
+            mBoundsPaint.setColor(0x4000ff00);
+
+            mOffset = mMediumPaint.getStrokeWidth();
+            final int width = (int) (mPathBounds.width() + mOffset * 3.0f + 0.5f);
+            final int height = (int) (mPathBounds.height() + mOffset * 3.0f + 0.5f);
+            mBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ALPHA_8);
+            Canvas canvas = new Canvas(mBitmap);
+            canvas.translate(-mPathBounds.left + mOffset * 1.5f, -mPathBounds.top + mOffset * 1.5f);
+            canvas.drawPath(mPath, mMediumPaint);
+        }
+
+        @Override
+        protected void onDraw(Canvas canvas) {
+            super.onDraw(canvas);
+
+            canvas.drawARGB(255, 255, 255, 255);
+
+            canvas.save();
+            canvas.translate(200.0f, 60.0f);
+            canvas.drawPath(mPath, mSmallPaint);
+            
+            canvas.translate(350.0f, 0.0f);
+            canvas.drawPath(mPath, mMediumPaint);
+
+            mLargePaint.setShader(mShader);
+            canvas.translate(350.0f, 0.0f);
+            canvas.drawPath(mPath, mLargePaint);
+            mLargePaint.setShader(null);
+            canvas.restore();
+            
+            canvas.save();
+            canvas.translate(200.0f, 360.0f);
+            canvas.drawPath(mPath, mSmallPaint);
+            canvas.drawRect(mPathBounds, mBoundsPaint);
+            
+            canvas.translate(350.0f, 0.0f);
+            canvas.drawBitmap(mBitmap, mPathBounds.left - mOffset * 1.5f,
+                    mPathBounds.top - mOffset * 1.5f, null);
+            canvas.drawRect(mPathBounds, mBoundsPaint);
+            canvas.drawLine(0.0f, -360.0f, 0.0f, 500.0f, mLinePaint);
+
+            mLargePaint.setShader(mShader);
+            canvas.translate(350.0f, 0.0f);
+            canvas.drawPath(mPath, mLargePaint);
+            canvas.drawRect(mPathBounds, mBoundsPaint);
+            mLargePaint.setShader(null);
+            canvas.restore();
+        }
+    }
+}