Merge "Add 3d transformation test."

tests/HwAccelerationTest/AndroidManifest.xml

@@ -161,6 +161,15 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
-                
+
+        <activity
+                android:name="Transform3dActivity"
+                android:label="_3d">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
     </application>
 </manifest>

tests/HwAccelerationTest/src/com/google/android/test/hwui/Transform3dActivity.java

@@ -0,0 +1,97 @@
+/*
+ * 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.Camera;
+import android.graphics.Canvas;
+import android.graphics.Matrix;
+import android.os.Bundle;
+import android.view.View;
+
+@SuppressWarnings({"UnusedDeclaration"})
+public class Transform3dActivity extends Activity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        final Transform3dView view = new Transform3dView(this);
+        setContentView(view);
+    }
+
+    static class Transform3dView extends View {
+        private final Bitmap mBitmap1;
+        private Camera mCamera;
+        private Matrix mMatrix;
+
+        Transform3dView(Context c) {
+            super(c);
+
+            mBitmap1 = BitmapFactory.decodeResource(c.getResources(), R.drawable.sunset1);
+            mCamera = new Camera();
+            mMatrix = new Matrix();
+        }
+
+        @Override
+        protected void onDraw(Canvas canvas) {
+            super.onDraw(canvas);
+
+            canvas.drawARGB(255, 255, 255, 255);
+
+            final float centerX = getWidth() / 2.0f - mBitmap1.getWidth() / 2.0f;
+            final float centerY = getHeight() / 2.0f - mBitmap1.getHeight() / 2.0f;
+            final Camera camera = mCamera;
+            
+            final Matrix matrix = mMatrix;
+
+            rotate(centerX, centerY, camera, matrix, 32.0f);
+            drawBitmap(canvas, centerX, centerY, 0.0f, matrix);
+
+            rotate(centerX, centerY, camera, matrix, 12.0f);
+            drawBitmap(canvas, centerX, centerY, -mBitmap1.getWidth(), matrix);
+            
+            rotate(centerX, centerY, camera, matrix, 52.0f);
+            drawBitmap(canvas, centerX, centerY, mBitmap1.getWidth(), matrix);
+            
+            rotate(centerX, centerY, camera, matrix, 122.0f);
+            drawBitmap(canvas, centerX, centerY, mBitmap1.getWidth() * 2.0f, matrix);
+            
+        }
+
+        private void drawBitmap(Canvas canvas, float centerX, float centerY, float offset,
+                Matrix matrix) {
+            canvas.save();
+            canvas.translate(offset, 0.0f);
+            canvas.concat(matrix);
+            canvas.drawBitmap(mBitmap1, centerX, centerY, null);
+            canvas.restore();
+        }
+
+        private void rotate(float centerX, float centerY, Camera camera,
+                Matrix matrix, float angle) {
+            camera.save();
+            camera.rotateY(angle);
+            camera.getMatrix(matrix);
+            camera.restore();
+
+            matrix.preTranslate(-centerX, -centerY);
+            matrix.postTranslate(centerX, centerY);
+        }
+    }
+}