| /* |
| * Copyright (C) 2011 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 com.example.android.rs.helloworld; |
| |
| import android.renderscript.RSSurfaceView; |
| import android.renderscript.RenderScriptGL; |
| |
| import android.content.Context; |
| import android.view.MotionEvent; |
| |
| public class HelloWorldView extends RSSurfaceView { |
| // Renderscipt context |
| private RenderScriptGL mRS; |
| // Script that does the rendering |
| private HelloWorldRS mRender; |
| |
| public HelloWorldView(Context context) { |
| super(context); |
| ensureRenderScript(); |
| } |
| |
| private void ensureRenderScript() { |
| if (mRS == null) { |
| // Initialize renderscript with desired surface characteristics. |
| // In this case, just use the defaults |
| RenderScriptGL.SurfaceConfig sc = new RenderScriptGL.SurfaceConfig(); |
| mRS = createRenderScriptGL(sc); |
| // Create an instance of the script that does the rendering |
| mRender = new HelloWorldRS(); |
| mRender.init(mRS, getResources()); |
| } |
| } |
| |
| @Override |
| protected void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| ensureRenderScript(); |
| } |
| |
| @Override |
| protected void onDetachedFromWindow() { |
| // Handle the system event and clean up |
| mRender = null; |
| if (mRS != null) { |
| mRS = null; |
| destroyRenderScriptGL(); |
| } |
| } |
| |
| @Override |
| public boolean onTouchEvent(MotionEvent ev) { |
| // Pass touch events from the system to the rendering script |
| if (ev.getAction() == MotionEvent.ACTION_DOWN) { |
| mRender.onActionDown((int)ev.getX(), (int)ev.getY()); |
| return true; |
| } |
| |
| return false; |
| } |
| } |
| |
| |