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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.android.fountain;
     18 
     19 import java.io.Writer;
     20 import java.util.ArrayList;
     21 import java.util.concurrent.Semaphore;
     22 
     23 import android.renderscript.RSSurfaceView;
     24 import android.renderscript.RenderScript;
     25 import android.renderscript.RenderScriptGL;
     26 
     27 import android.content.Context;
     28 import android.content.res.Resources;
     29 import android.graphics.Bitmap;
     30 import android.graphics.drawable.BitmapDrawable;
     31 import android.graphics.drawable.Drawable;
     32 import android.os.Handler;
     33 import android.os.Message;
     34 import android.util.AttributeSet;
     35 import android.util.Log;
     36 import android.view.Surface;
     37 import android.view.SurfaceHolder;
     38 import android.view.SurfaceView;
     39 import android.view.KeyEvent;
     40 import android.view.MotionEvent;
     41 
     42 public class FountainView extends RSSurfaceView {
     43 
     44     public FountainView(Context context) {
     45         super(context);
     46         //setFocusable(true);
     47     }
     48 
     49     private RenderScriptGL mRS;
     50     private FountainRS mRender;
     51 
     52     public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
     53         super.surfaceChanged(holder, format, w, h);
     54         if (mRS == null) {
     55             mRS = createRenderScript(false);
     56             mRS.contextSetSurface(w, h, holder.getSurface());
     57             mRender = new FountainRS();
     58             mRender.init(mRS, getResources(), w, h);
     59         }
     60     }
     61 
     62     @Override
     63     protected void onDetachedFromWindow() {
     64         if(mRS != null) {
     65             mRS = null;
     66             destroyRenderScript();
     67         }
     68     }
     69 
     70 
     71     @Override
     72     public boolean onTouchEvent(MotionEvent ev)
     73     {
     74         int act = ev.getAction();
     75         if (act == ev.ACTION_UP) {
     76             mRender.newTouchPosition(0, 0, 0);
     77             return false;
     78         }
     79         float rate = (ev.getPressure() * 50.f);
     80         rate *= rate;
     81         if(rate > 2000.f) {
     82             rate = 2000.f;
     83         }
     84         mRender.newTouchPosition((int)ev.getX(), (int)ev.getY(), (int)rate);
     85         return true;
     86     }
     87 }
     88 
     89 
     90