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      1 /*
      2  * Copyright (C) 2008 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.example.android.rs.miscsamples;
     18 
     19 import android.renderscript.RSSurfaceView;
     20 import android.renderscript.RenderScriptGL;
     21 
     22 import android.content.Context;
     23 import android.view.MotionEvent;
     24 import android.view.SurfaceHolder;
     25 
     26 public class RsRenderStatesView extends RSSurfaceView {
     27 
     28     public RsRenderStatesView(Context context) {
     29         super(context);
     30         ensureRenderScript();
     31     }
     32 
     33     private RenderScriptGL mRS;
     34     private RsRenderStatesRS mRender;
     35 
     36     private void ensureRenderScript() {
     37         if (mRS == null) {
     38             RenderScriptGL.SurfaceConfig sc = new RenderScriptGL.SurfaceConfig();
     39             sc.setDepth(16, 24);
     40             mRS = createRenderScriptGL(sc);
     41             mRender = new RsRenderStatesRS();
     42             mRender.init(mRS, getResources());
     43         }
     44     }
     45 
     46     @Override
     47     protected void onAttachedToWindow() {
     48         super.onAttachedToWindow();
     49         ensureRenderScript();
     50     }
     51 
     52     @Override
     53     public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
     54         super.surfaceChanged(holder, format, w, h);
     55         mRender.surfaceChanged();
     56     }
     57 
     58     @Override
     59     protected void onDetachedFromWindow() {
     60         mRender = null;
     61         if (mRS != null) {
     62             mRS = null;
     63             destroyRenderScriptGL();
     64         }
     65     }
     66 
     67     @Override
     68     public boolean onTouchEvent(MotionEvent ev) {
     69         if (ev.getAction() == MotionEvent.ACTION_DOWN) {
     70             mRender.onActionDown((int)ev.getX(), (int)ev.getY());
     71             return true;
     72         }
     73 
     74         return false;
     75     }
     76 }
     77 
     78 
     79