| /* |
| * Copyright (C) 2019 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 android.gameperformance; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.CountDownLatch; |
| |
| import android.annotation.MainThread; |
| import android.annotation.NonNull; |
| import android.annotation.WorkerThread; |
| import android.app.Activity; |
| import android.content.Context; |
| import android.graphics.Canvas; |
| import android.graphics.drawable.AnimationDrawable; |
| import android.util.Log; |
| import android.view.WindowManager; |
| import android.widget.AbsoluteLayout; |
| import android.widget.ImageView; |
| import android.widget.RelativeLayout; |
| |
| /** |
| * View that holds requested number of UI controls as ImageView with an infinite animation. |
| */ |
| public class CustomControlView extends AbsoluteLayout { |
| private final static int CONTROL_DIMENTION = 48; |
| |
| private final int mPerRowControlCount; |
| private List<Long> mFrameTimes = new ArrayList<>(); |
| |
| public CustomControlView(@NonNull Context context) { |
| super(context); |
| |
| final WindowManager windowManager = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE); |
| mPerRowControlCount = windowManager.getDefaultDisplay().getWidth() / CONTROL_DIMENTION; |
| } |
| |
| /** |
| * Helper class that overrides ImageView and observes draw requests. Only |
| * one such control is created which is the first control in the view. |
| */ |
| class ReferenceImageView extends ImageView { |
| public ReferenceImageView(Context context) { |
| super(context); |
| } |
| @Override |
| public void draw(Canvas canvas) { |
| reportFrame(); |
| super.draw(canvas); |
| } |
| } |
| |
| @WorkerThread |
| public void createControls( |
| @NonNull Activity activity, int controlCount) throws InterruptedException { |
| synchronized (this) { |
| final CountDownLatch latch = new CountDownLatch(1); |
| activity.runOnUiThread(new Runnable() { |
| @Override |
| public void run() { |
| removeAllViews(); |
| |
| for (int i = 0; i < controlCount; ++i) { |
| final ImageView image = (i == 0) ? |
| new ReferenceImageView(activity) : new ImageView(activity); |
| final int x = (i % mPerRowControlCount) * CONTROL_DIMENTION; |
| final int y = (i / mPerRowControlCount) * CONTROL_DIMENTION; |
| final AbsoluteLayout.LayoutParams layoutParams = |
| new AbsoluteLayout.LayoutParams( |
| CONTROL_DIMENTION, CONTROL_DIMENTION, x, y); |
| image.setLayoutParams(layoutParams); |
| image.setBackgroundResource(R.drawable.animation); |
| final AnimationDrawable animation = |
| (AnimationDrawable)image.getBackground(); |
| animation.start(); |
| addView(image); |
| } |
| |
| latch.countDown(); |
| } |
| }); |
| latch.await(); |
| } |
| } |
| |
| @MainThread |
| private void reportFrame() { |
| final long time = System.currentTimeMillis(); |
| synchronized (mFrameTimes) { |
| mFrameTimes.add(time); |
| } |
| } |
| |
| /** |
| * Resets frame times in order to calculate FPS for the different test pass. |
| */ |
| public void resetFrameTimes() { |
| synchronized (mFrameTimes) { |
| mFrameTimes.clear(); |
| } |
| } |
| |
| /** |
| * Returns current FPS based on collected frame times. |
| */ |
| public double getFps() { |
| synchronized (mFrameTimes) { |
| if (mFrameTimes.size() < 2) { |
| return 0.0f; |
| } |
| return 1000.0 * mFrameTimes.size() / |
| (mFrameTimes.get(mFrameTimes.size() - 1) - mFrameTimes.get(0)); |
| } |
| } |
| } |