1 /******************************************************************************* 2 * Copyright 2011 See AUTHORS file. 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.badlogic.gdx.backends.android; 18 19 import android.media.AudioManager; 20 import android.media.SoundPool; 21 22 import com.badlogic.gdx.audio.Sound; 23 import com.badlogic.gdx.utils.IntArray; 24 25 final class AndroidSound implements Sound { 26 final SoundPool soundPool; 27 final AudioManager manager; 28 final int soundId; 29 final IntArray streamIds = new IntArray(8); 30 31 AndroidSound (SoundPool pool, AudioManager manager, int soundId) { 32 this.soundPool = pool; 33 this.manager = manager; 34 this.soundId = soundId; 35 } 36 37 @Override 38 public void dispose () { 39 soundPool.unload(soundId); 40 } 41 42 @Override 43 public long play () { 44 return play(1); 45 } 46 47 @Override 48 public long play (float volume) { 49 if (streamIds.size == 8) streamIds.pop(); 50 int streamId = soundPool.play(soundId, volume, volume, 1, 0, 1); 51 // standardise error code with other backends 52 if (streamId == 0) return -1; 53 streamIds.insert(0, streamId); 54 return streamId; 55 } 56 57 public void stop () { 58 for (int i = 0, n = streamIds.size; i < n; i++) 59 soundPool.stop(streamIds.get(i)); 60 } 61 62 @Override 63 public void stop (long soundId) { 64 soundPool.stop((int)soundId); 65 } 66 67 @Override 68 public void pause () { 69 soundPool.autoPause(); 70 } 71 72 @Override 73 public void pause (long soundId) { 74 soundPool.pause((int)soundId); 75 } 76 77 @Override 78 public void resume () { 79 soundPool.autoResume(); 80 } 81 82 @Override 83 public void resume (long soundId) { 84 soundPool.resume((int)soundId); 85 } 86 87 @Override 88 public void setPitch (long soundId, float pitch) { 89 soundPool.setRate((int)soundId, pitch); 90 } 91 92 @Override 93 public void setVolume (long soundId, float volume) { 94 soundPool.setVolume((int)soundId, volume, volume); 95 } 96 97 @Override 98 public long loop () { 99 return loop(1); 100 } 101 102 @Override 103 public long loop (float volume) { 104 if (streamIds.size == 8) streamIds.pop(); 105 int streamId = soundPool.play(soundId, volume, volume, 1, -1, 1); 106 // standardise error code with other backends 107 if (streamId == 0) return -1; 108 streamIds.insert(0, streamId); 109 return streamId; 110 } 111 112 @Override 113 public void setLooping (long soundId, boolean looping) { 114 soundPool.setLoop((int)soundId, looping ? -1 : 0); 115 } 116 117 @Override 118 public void setPan (long soundId, float pan, float volume) { 119 float leftVolume = volume; 120 float rightVolume = volume; 121 122 if (pan < 0) { 123 rightVolume *= (1 - Math.abs(pan)); 124 } else if (pan > 0) { 125 leftVolume *= (1 - Math.abs(pan)); 126 } 127 128 soundPool.setVolume((int)soundId, leftVolume, rightVolume); 129 } 130 131 @Override 132 public long play (float volume, float pitch, float pan) { 133 if (streamIds.size == 8) streamIds.pop(); 134 float leftVolume = volume; 135 float rightVolume = volume; 136 if (pan < 0) { 137 rightVolume *= (1 - Math.abs(pan)); 138 } else if (pan > 0) { 139 leftVolume *= (1 - Math.abs(pan)); 140 } 141 int streamId = soundPool.play(soundId, leftVolume, rightVolume, 1, 0, pitch); 142 // standardise error code with other backends 143 if (streamId == 0) return -1; 144 streamIds.insert(0, streamId); 145 return streamId; 146 } 147 148 @Override 149 public long loop (float volume, float pitch, float pan) { 150 if (streamIds.size == 8) streamIds.pop(); 151 float leftVolume = volume; 152 float rightVolume = volume; 153 if (pan < 0) { 154 rightVolume *= (1 - Math.abs(pan)); 155 } else if (pan > 0) { 156 leftVolume *= (1 - Math.abs(pan)); 157 } 158 int streamId = soundPool.play(soundId, leftVolume, rightVolume, 1, -1, pitch); 159 // standardise error code with other backends 160 if (streamId == 0) return -1; 161 streamIds.insert(0, streamId); 162 return streamId; 163 } 164 } 165
