1 /* 2 * Copyright (C) 2007 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 #ifndef SOUNDPOOLTHREAD_H_ 18 #define SOUNDPOOLTHREAD_H_ 19 20 #include <utils/threads.h> 21 #include <utils/Vector.h> 22 #include <media/AudioTrack.h> 23 24 #include "SoundPool.h" 25 26 namespace android { 27 28 class SoundPoolMsg { 29 public: 30 enum MessageType { INVALID, KILL, LOAD_SAMPLE }; SoundPoolMsg()31 SoundPoolMsg() : mMessageType(INVALID), mData(0) {} SoundPoolMsg(MessageType MessageType,int data)32 SoundPoolMsg(MessageType MessageType, int data) : 33 mMessageType(MessageType), mData(data) {} 34 uint16_t mMessageType; 35 uint16_t mData; 36 }; 37 38 /* 39 * This class handles background requests from the SoundPool 40 */ 41 class SoundPoolThread { 42 public: 43 explicit SoundPoolThread(SoundPool* SoundPool); 44 ~SoundPoolThread(); 45 void loadSample(int sampleID); 46 void quit(); 47 void write(SoundPoolMsg msg); 48 49 private: 50 static const size_t maxMessages = 128; 51 52 static int beginThread(void* arg); 53 int run(); 54 void doLoadSample(int sampleID); 55 const SoundPoolMsg read(); 56 57 Mutex mLock; 58 Condition mCondition; 59 Vector<SoundPoolMsg> mMsgQueue; 60 SoundPool* mSoundPool; 61 bool mRunning; 62 }; 63 64 } // end namespace android 65 66 #endif /*SOUNDPOOLTHREAD_H_*/ 67