| 1 | /****************************************************************************** |
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| 2 | * SAGE - Scalable Adaptive Graphics Environment |
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| 3 | * |
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| 4 | * Module: sageAppAudio.h |
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| 5 | * Author : Byungil Jeong |
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| 6 | * |
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| 7 | * Copyright (C) 2004 Electronic Visualization Laboratory, |
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| 8 | * University of Illinois at Chicago |
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| 9 | * |
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| 10 | * All rights reserved. |
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| 11 | * |
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| 12 | * Redistribution and use in source and binary forms, with or without |
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| 13 | * modification, are permitted provided that the following conditions are met: |
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| 14 | * |
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| 15 | * * Redistributions of source code must retain the above copyright |
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| 16 | * notice, this list of conditions and the following disclaimer. |
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| 17 | * * Redistributions in binary form must reproduce the above |
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| 18 | * copyright notice, this list of conditions and the following disclaimer |
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| 19 | * in the documentation and/or other materials provided with the distribution. |
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| 20 | * * Neither the name of the University of Illinois at Chicago nor |
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| 21 | * the names of its contributors may be used to endorse or promote |
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| 22 | * products derived from this software without specific prior written permission. |
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| 23 | * |
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| 24 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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| 25 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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| 26 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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| 27 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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| 28 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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| 29 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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| 30 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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| 31 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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| 32 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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| 33 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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| 34 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 35 | * |
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| 36 | * Direct questions, comments etc about SAGE to sage_users@listserv.uic.edu or |
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| 37 | * http://www.evl.uic.edu/cavern/forum/ |
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| 38 | * |
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| 39 | *****************************************************************************/ |
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| 40 | |
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| 41 | #ifndef _SAGE_APP_AUDIO_H |
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| 42 | #define _SAGE_APP_AUDIO_H |
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| 43 | |
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| 44 | #include "sageBase.h" |
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| 45 | |
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| 46 | class sageAudioCircBuf; |
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| 47 | |
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| 48 | class sageAppAudio { |
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| 49 | public: |
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| 50 | sageAppAudio(sageAudioCircBuf* audioBuffer, int maxsize); |
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| 51 | virtual ~sageAppAudio(); |
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| 52 | |
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| 53 | public: |
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| 54 | //int pushAudioData(int size, void *buf); |
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| 55 | int swapBuffer(int size, void *buf); |
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| 56 | int start(void); |
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| 57 | |
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| 58 | protected: |
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| 59 | static void* audioThread(void *args); |
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| 60 | |
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| 61 | int processData(); |
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| 62 | |
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| 63 | protected: |
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| 64 | pthread_mutex_t *queueLock; |
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| 65 | pthread_cond_t *notFull; |
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| 66 | pthread_cond_t *notEmpty; |
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| 67 | |
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| 68 | sageAudioCircBuf* buffer; |
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| 69 | |
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| 70 | int readIndex; |
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| 71 | int writeIndex; |
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| 72 | bool initialized; |
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| 73 | |
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| 74 | bool full; |
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| 75 | bool empty; |
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| 76 | int maxAudioBuffSize; |
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| 77 | |
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| 78 | void * audioAppRawBuffer[2]; |
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| 79 | int audiobufSize[2]; |
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| 80 | |
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| 81 | int remainBufSize; |
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| 82 | void * remainBuf; |
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| 83 | |
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| 84 | pthread_t thAppId; |
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| 85 | |
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| 86 | }; |
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| 87 | |
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| 88 | #endif |
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