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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.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             RenderScriptGL.SurfaceConfig sc = new RenderScriptGL.SurfaceConfig();
     56             mRS = createRenderScriptGL(sc);
     57             mRS.setSurface(holder, w, h);
     58             mRender = new FountainRS();
     59             mRender.init(mRS, getResources());
     60         }
     61     }
     62 
     63     @Override
     64     protected void onDetachedFromWindow() {
     65         if (mRS != null) {
     66             mRS = null;
     67             destroyRenderScriptGL();
     68         }
     69     }
     70 
     71 
     72     @Override
     73     public boolean onTouchEvent(MotionEvent ev)
     74     {
     75         int act = ev.getActionMasked();
     76         if (act == ev.ACTION_UP) {
     77             mRender.newTouchPosition(0, 0, 0, ev.getPointerId(0));
     78             return false;
     79         } else if (act == MotionEvent.ACTION_POINTER_UP) {
     80             // only one pointer going up, we can get the index like this
     81             int pointerIndex = ev.getActionIndex();
     82             int pointerId = ev.getPointerId(pointerIndex);
     83             mRender.newTouchPosition(0, 0, 0, pointerId);
     84         }
     85         int count = ev.getHistorySize();
     86         int pcount = ev.getPointerCount();
     87 
     88         for (int p=0; p < pcount; p++) {
     89             int id = ev.getPointerId(p);
     90             mRender.newTouchPosition(ev.getX(p),
     91                                      ev.getY(p),
     92                                      ev.getPressure(p),
     93                                      id);
     94 
     95             for (int i=0; i < count; i++) {
     96                 mRender.newTouchPosition(ev.getHistoricalX(p, i),
     97                                          ev.getHistoricalY(p, i),
     98                                          ev.getHistoricalPressure(p, i),
     99                                          id);
    100             }
    101         }
    102         return true;
    103     }
    104 }
    105 
    106 
    107