1/* 2 * Copyright (C) 2012 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 17package %PACKAGE%; 18 19import android.renderscript.RSSurfaceView; 20import android.renderscript.RenderScriptGL; 21 22import android.content.Context; 23import android.view.MotionEvent; 24 25public class DriverView extends RSSurfaceView { 26 // Renderscipt context 27 private RenderScriptGL mRS; 28 // Script that does the rendering 29 private DriverRS mRender; 30 31 public DriverView(Context context) { 32 super(context); 33 ensureRenderScript(); 34 } 35 36 private void ensureRenderScript() { 37 if (mRS == null) { 38 // Initialize renderscript with desired surface characteristics. 39 // In this case, just use the defaults 40 RenderScriptGL.SurfaceConfig sc = new RenderScriptGL.SurfaceConfig(); 41 mRS = createRenderScriptGL(sc); 42 // Create an instance of the script that does the rendering 43 mRender = new DriverRS(); 44 mRender.init(mRS, getResources()); 45 } 46 } 47 48 @Override 49 protected void onAttachedToWindow() { 50 super.onAttachedToWindow(); 51 ensureRenderScript(); 52 } 53 54 @Override 55 protected void onDetachedFromWindow() { 56 // Handle the system event and clean up 57 mRender = null; 58 if (mRS != null) { 59 mRS = null; 60 destroyRenderScriptGL(); 61 } 62 } 63} 64 65 66