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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License
     15  */
     16 
     17 package test.windowmanagerstresstest;
     18 
     19 import android.app.Activity;
     20 import android.graphics.Rect;
     21 import android.os.Bundle;
     22 import android.os.RemoteException;
     23 import android.os.SystemClock;
     24 import android.util.Log;
     25 import android.util.MergedConfiguration;
     26 import android.view.Display;
     27 import android.view.IWindowSession;
     28 import android.view.Surface;
     29 import android.view.View;
     30 import android.view.WindowManager;
     31 import android.view.WindowManager.LayoutParams;
     32 import android.view.WindowManagerGlobal;
     33 import android.widget.TextView;
     34 
     35 import com.android.internal.view.BaseIWindow;
     36 
     37 import java.util.ArrayList;
     38 
     39 public class MainActivity extends Activity {
     40 
     41     private static final String TAG = "WmSlam";
     42 
     43     private TextView mOutput;
     44     private volatile boolean finished;
     45     private final ArrayList<BaseIWindow> mWindows = new ArrayList<>();
     46     private final LayoutParams mLayoutParams = new LayoutParams();
     47     private final Rect mTmpRect = new Rect();
     48 
     49     @Override
     50     protected void onCreate(Bundle savedInstanceState) {
     51         super.onCreate(savedInstanceState);
     52         setContentView(R.layout.activity_main);
     53         mOutput = (TextView) findViewById(R.id.output);
     54 
     55         findViewById(R.id.run).setOnClickListener(view -> {
     56             view.setEnabled(false);
     57             mOutput.setText("");
     58             startBatch();
     59         });
     60         mLayoutParams.token = getActivityToken();
     61     }
     62 
     63     void startBatch() {
     64         new Thread(() -> {
     65             finished = false;
     66             addWindows();
     67             startCpuRunnables();
     68             for (int i = 0; i < 5; i++) {
     69                 final long time = SystemClock.uptimeMillis();
     70                 slamWm();
     71                 log("Total: " + (SystemClock.uptimeMillis() - time) + " ms");
     72             }
     73             removeWindows();
     74             finished = true;
     75         }).start();
     76     }
     77 
     78     void startCpuRunnables() {
     79         for (int i = 0; i < 10; i++) {
     80             new Thread(mUseCpuRunnable).start();
     81         }
     82     }
     83 
     84     private final Runnable mUseCpuRunnable = new Runnable() {
     85         @Override
     86         public void run() {
     87             while (!finished) {
     88             }
     89         }
     90     };
     91 
     92     private void log(String text) {
     93         mOutput.post(() -> mOutput.append(text + "\n"));
     94         Log.d(TAG, text);
     95     }
     96 
     97     private void slamWm() {
     98         ArrayList<Thread> threads = new ArrayList<>();
     99         for (int i = 0; i < 20; i++) {
    100             for (BaseIWindow window : mWindows) {
    101                 Thread t = new Thread(() -> {
    102                     try {
    103                         WindowManagerGlobal.getWindowSession().relayout(window,
    104                                 window.mSeq, mLayoutParams, -1, -1, View.VISIBLE, 0, mTmpRect,
    105                                 mTmpRect, mTmpRect, mTmpRect, mTmpRect, mTmpRect, mTmpRect,
    106                                 new MergedConfiguration(), new Surface());
    107                     } catch (RemoteException e) {
    108                         e.printStackTrace();
    109                     }
    110                 });
    111                 threads.add(t);
    112                 t.start();
    113             }
    114         }
    115         for (Thread t : threads) {
    116             try {
    117                 t.join();
    118             } catch (InterruptedException e) {
    119                 e.printStackTrace();
    120             }
    121         }
    122     }
    123 
    124     void addWindows() {
    125         for (int i = 0; i < 50; i++) {
    126             final WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
    127             layoutParams.token = getActivityToken();
    128             final BaseIWindow window = new BaseIWindow();
    129             final IWindowSession session = WindowManagerGlobal.getWindowSession();
    130             final Rect tmpRect = new Rect();
    131             try {
    132                 final int res = session.addToDisplayWithoutInputChannel(window, window.mSeq, layoutParams,
    133                         View.VISIBLE, Display.DEFAULT_DISPLAY, tmpRect, tmpRect);
    134             } catch (RemoteException e) {
    135                 e.printStackTrace();
    136             }
    137             mWindows.add(window);
    138         }
    139     }
    140 
    141     void removeWindows() {
    142         for (BaseIWindow window : mWindows) {
    143             try {
    144                 WindowManagerGlobal.getWindowSession().remove(window);
    145             } catch (RemoteException e) {
    146                 e.printStackTrace();
    147             }
    148         }
    149     }
    150 }
    151