1 /* 2 * Copyright (C) 2018 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 com.android.amm.test; 18 19 import android.content.Context; 20 import android.view.WindowManager; 21 import android.widget.TextView; 22 23 class ThreadedRendererUse { 24 25 private TextView mTextView; 26 27 /** 28 * Cause a threaded renderer EGL allocation to be used, with given 29 * dimensions. 30 */ 31 public ThreadedRendererUse(Context context, int width, int height) { 32 mTextView = new TextView(context); 33 mTextView.setText("TRU"); 34 mTextView.setBackgroundColor(0xffff0000); 35 36 // Adding a view to the WindowManager (as opposed to the app's root view 37 // hierarchy) causes a ThreadedRenderer and EGL allocations under the cover. 38 // We use a TextView here to trigger the use case, but we could use any 39 // other kind of view as well. 40 WindowManager wm = context.getSystemService(WindowManager.class); 41 WindowManager.LayoutParams layout = new WindowManager.LayoutParams(); 42 layout.width = width; 43 layout.height = height; 44 wm.addView(mTextView, layout); 45 46 mTextView.post(new CycleRunnable()); 47 } 48 49 // To force as many graphics buffers as will ever be used to actually be 50 // used, we cycle the text of the text view a handful of times right 51 // when things start up. 52 private class CycleRunnable implements Runnable { 53 private int mCycles = 0; 54 55 public void run() { 56 if (mCycles < 10) { 57 mCycles++; 58 mTextView.setText("TRU " + mCycles); 59 mTextView.post(this); 60 } 61 } 62 } 63 } 64 65
