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 }; 31 SoundPoolMsg() : mMessageType(INVALID), mData(0) {} 32 SoundPoolMsg(MessageType MessageType, int data) : 33 mMessageType(MessageType), mData(data) {} 34 uint8_t mMessageType; 35 uint8_t mData; 36 uint8_t mData2; 37 uint8_t mData3; 38 }; 39 40 /* 41 * This class handles background requests from the SoundPool 42 */ 43 class SoundPoolThread { 44 public: 45 SoundPoolThread(SoundPool* SoundPool); 46 ~SoundPoolThread(); 47 void loadSample(int sampleID); 48 void quit(); 49 void write(SoundPoolMsg msg); 50 51 private: 52 static const size_t maxMessages = 5; 53 54 static int beginThread(void* arg); 55 int run(); 56 void doLoadSample(int sampleID); 57 const SoundPoolMsg read(); 58 59 Mutex mLock; 60 Condition mCondition; 61 Vector<SoundPoolMsg> mMsgQueue; 62 SoundPool* mSoundPool; 63 bool mRunning; 64 }; 65 66 } // end namespace android 67 68 #endif /*SOUNDPOOLTHREAD_H_*/ 69
