1/*
2 * Copyright (C) 2009 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.musicvis.vis2;
18
19import com.android.musicvis.GenericWaveRS;
20import com.android.musicvis.R;
21import com.android.musicvis.AudioCapture;
22import android.util.Log;
23
24import android.media.MediaPlayer;
25
26class Visualization2RS extends GenericWaveRS {
27
28    Visualization2RS(int width, int height) {
29        super(width, height, R.drawable.fire);
30    }
31
32    @Override
33    public void start() {
34        if (mAudioCapture == null) {
35            mAudioCapture = new AudioCapture(AudioCapture.TYPE_PCM, 1024);
36        }
37        super.start();
38    }
39
40    @Override
41    public void stop() {
42        super.stop();
43        if (mAudioCapture != null) {
44            mAudioCapture.release();
45            mAudioCapture = null;
46        }
47    }
48
49    @Override
50    public void update() {
51        int len = 0;
52        if (mAudioCapture != null) {
53            mVizData = mAudioCapture.getFormattedData(1,1);
54            len = mVizData.length;
55        }
56
57        if (len == 0) {
58            if (mWorldState.idle == 0) {
59                mWorldState.idle = 1;
60                //mState.data(mWorldState);
61                updateWorldState();
62            }
63            return;
64        }
65
66        int outlen = mPointData.length / 8;
67        if (len > outlen) len = outlen;
68
69        if (mWorldState.idle != 0) {
70            mWorldState.idle = 0;
71            //mState.data(mWorldState);
72            updateWorldState();
73        }
74        // TODO: might be more efficient to push this in to renderscript
75        for(int i = 0; i < len; i++) {
76            int amp = mVizData[i];
77            mPointData[i*8+1] = amp;
78            mPointData[i*8+5] = -amp;
79        }
80        mPointAlloc.copyFromUnchecked(mPointData);
81    }
82
83}
84