1/*
2 * Copyright (C) 2011 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.android.fbotest;
18
19import android.renderscript.RSSurfaceView;
20import android.renderscript.RenderScriptGL;
21
22import android.content.Context;
23import android.view.MotionEvent;
24import android.view.SurfaceHolder;
25import android.view.ScaleGestureDetector;
26import android.util.Log;
27
28public class FBOTestView extends RSSurfaceView {
29
30    private RenderScriptGL mRS;
31    private FBOTestRS mRender;
32
33    private ScaleGestureDetector mScaleDetector;
34
35    private static final int INVALID_POINTER_ID = -1;
36    private int mActivePointerId = INVALID_POINTER_ID;
37
38    public FBOTestView(Context context) {
39        super(context);
40        ensureRenderScript();
41        mScaleDetector = new ScaleGestureDetector(context, new ScaleListener());
42    }
43
44    private void ensureRenderScript() {
45        if (mRS == null) {
46            RenderScriptGL.SurfaceConfig sc = new RenderScriptGL.SurfaceConfig();
47            sc.setDepth(16, 24);
48            mRS = createRenderScriptGL(sc);
49            mRender = new FBOTestRS();
50            mRender.init(mRS, getResources());
51        }
52    }
53
54    @Override
55    protected void onAttachedToWindow() {
56        super.onAttachedToWindow();
57        ensureRenderScript();
58    }
59
60    @Override
61    public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
62        super.surfaceChanged(holder, format, w, h);
63        mRender.surfaceChanged();
64    }
65
66    @Override
67    protected void onDetachedFromWindow() {
68        mRender = null;
69        if (mRS != null) {
70            mRS = null;
71            destroyRenderScriptGL();
72        }
73    }
74
75    public void loadA3DFile(String path) {
76        mRender.loadA3DFile(path);
77    }
78
79    @Override
80    public boolean onTouchEvent(MotionEvent ev) {
81        mScaleDetector.onTouchEvent(ev);
82
83        boolean ret = false;
84        float x = ev.getX();
85        float y = ev.getY();
86
87        final int action = ev.getAction();
88
89        switch (action & MotionEvent.ACTION_MASK) {
90        case MotionEvent.ACTION_DOWN: {
91            mRender.onActionDown(x, y);
92            mActivePointerId = ev.getPointerId(0);
93            ret = true;
94            break;
95        }
96        case MotionEvent.ACTION_MOVE: {
97            if (!mScaleDetector.isInProgress()) {
98                mRender.onActionMove(x, y);
99            }
100            mRender.onActionDown(x, y);
101            ret = true;
102            break;
103        }
104
105        case MotionEvent.ACTION_UP: {
106            mActivePointerId = INVALID_POINTER_ID;
107            break;
108        }
109
110        case MotionEvent.ACTION_CANCEL: {
111            mActivePointerId = INVALID_POINTER_ID;
112            break;
113        }
114
115        case MotionEvent.ACTION_POINTER_UP: {
116            final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK)
117                    >> MotionEvent.ACTION_POINTER_INDEX_SHIFT;
118            final int pointerId = ev.getPointerId(pointerIndex);
119            if (pointerId == mActivePointerId) {
120                // This was our active pointer going up. Choose a new
121                // active pointer and adjust accordingly.
122                final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
123                x = ev.getX(newPointerIndex);
124                y = ev.getY(newPointerIndex);
125                mRender.onActionDown(x, y);
126                mActivePointerId = ev.getPointerId(newPointerIndex);
127            }
128            break;
129        }
130        }
131
132        return ret;
133    }
134
135    private class ScaleListener extends ScaleGestureDetector.SimpleOnScaleGestureListener {
136        @Override
137        public boolean onScale(ScaleGestureDetector detector) {
138            mRender.onActionScale(detector.getScaleFactor());
139            return true;
140        }
141    }
142}
143
144
145