1 /* 2 * Copyright (C) 2013 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.rs.genimage; 18 19 import android.app.Activity; 20 import android.content.Context; 21 import android.opengl.GLSurfaceView; 22 import android.os.Bundle; 23 24 public class GenImageAct extends Activity { 25 26 private GLSurfaceView mGLView; 27 28 @Override onCreate(Bundle savedInstanceState)29 public void onCreate(Bundle savedInstanceState) { 30 super.onCreate(savedInstanceState); 31 32 // Create a GLSurfaceView instance and set it 33 // as the ContentView for this Activity 34 mGLView = new MyGLSurfaceView(this); 35 setContentView(mGLView); 36 } 37 38 @Override onPause()39 protected void onPause() { 40 super.onPause(); 41 // The following call pauses the rendering thread. 42 // If your OpenGL application is memory intensive, 43 // you should consider de-allocating objects that 44 // consume significant memory here. 45 mGLView.onPause(); 46 } 47 48 @Override onResume()49 protected void onResume() { 50 super.onResume(); 51 // The following call resumes a paused rendering thread. 52 // If you de-allocated graphic objects for onPause() 53 // this is a good place to re-allocate them. 54 mGLView.onResume(); 55 } 56 } 57 58 class MyGLSurfaceView extends GLSurfaceView { 59 MyGLSurfaceView(Context context)60 public MyGLSurfaceView(Context context) { 61 super(context); 62 63 // Create an OpenGL ES 2.0 context. 64 setEGLContextClientVersion(2); 65 66 // Set the Renderer for drawing on the GLSurfaceView 67 setRenderer(new GenImage(context)); 68 69 // Render the view only when there is a change in the drawing data 70 setRenderMode(GLSurfaceView.RENDERMODE_CONTINUOUSLY); 71 } 72 } 73