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
17package com.example.android.rs.balls;
18
19import java.io.Writer;
20import java.util.ArrayList;
21import java.util.concurrent.Semaphore;
22
23import android.renderscript.RSSurfaceView;
24import android.renderscript.RenderScript;
25import android.renderscript.RenderScriptGL;
26
27import android.content.Context;
28import android.content.res.Resources;
29import android.graphics.Bitmap;
30import android.graphics.drawable.BitmapDrawable;
31import android.graphics.drawable.Drawable;
32import android.os.Handler;
33import android.os.Message;
34import android.util.AttributeSet;
35import android.util.Log;
36import android.view.Surface;
37import android.view.SurfaceHolder;
38import android.view.SurfaceView;
39import android.view.KeyEvent;
40import android.view.MotionEvent;
41
42public class BallsView extends RSSurfaceView {
43
44    public BallsView(Context context) {
45        super(context);
46        //setFocusable(true);
47    }
48
49    private RenderScriptGL mRS;
50    private BallsRS 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 BallsRS();
59            mRender.init(mRS, getResources(), w, h);
60        }
61        mRender.updateProjectionMatrices();
62    }
63
64    @Override
65    protected void onDetachedFromWindow() {
66        if(mRS != null) {
67            mRS = null;
68            destroyRenderScriptGL();
69        }
70    }
71
72
73    @Override
74    public boolean onTouchEvent(MotionEvent ev)
75    {
76        int act = ev.getActionMasked();
77        if (act == ev.ACTION_UP) {
78            mRender.newTouchPosition(0, 0, 0, ev.getPointerId(0));
79            return false;
80        } else if (act == MotionEvent.ACTION_POINTER_UP) {
81            // only one pointer going up, we can get the index like this
82            int pointerIndex = ev.getActionIndex();
83            int pointerId = ev.getPointerId(pointerIndex);
84            mRender.newTouchPosition(0, 0, 0, pointerId);
85            return false;
86        }
87        int count = ev.getHistorySize();
88        int pcount = ev.getPointerCount();
89
90        for (int p=0; p < pcount; p++) {
91            int id = ev.getPointerId(p);
92            mRender.newTouchPosition(ev.getX(p),
93                                     ev.getY(p),
94                                     ev.getPressure(p),
95                                     id);
96
97            for (int i=0; i < count; i++) {
98                mRender.newTouchPosition(ev.getHistoricalX(p, i),
99                                         ev.getHistoricalY(p, i),
100                                         ev.getHistoricalPressure(p, i),
101                                         id);
102            }
103        }
104        return true;
105    }
106
107    void setAccel(float x, float y, float z) {
108        if ((mRender == null) || (mRS == null)) {
109            return;
110        }
111        mRender.setAccel(x, -y);
112    }
113
114}
115
116
117