00001 #ifndef MERCURYSOUNDDRIVERALSA_H 00002 #define MERCURYSOUNDDRIVERALSA_H 00003 00004 #include <alsa/asoundlib.h> 00005 #include "MercurySoundSourceWAV.h" 00006 #include "MercurySoundDriver.h" 00007 00008 class MercurySoundDriverALSA : public MercurySoundDriver 00009 { 00010 public: 00011 MercurySoundDriverALSA(); 00012 virtual ~MercurySoundDriverALSA(); 00013 00014 virtual void Init(); 00015 00016 static void ALSACallback(snd_async_handler_t *pcm_callback); 00017 00018 void Start(); 00019 00020 private: 00021 virtual void WriteSoundFrames(); 00022 00023 virtual void Cleanup(); 00024 void SetupSWParams(); 00025 void SetupHWParams(); 00026 00027 void Recover(int error); 00028 00029 snd_pcm_t* m_pcmHandle; 00030 }; 00031 00032 #endif 00033 00034 /* 00035 * Copyright (c) 2007 Joshua Allen 00036 * All rights reserved. 00037 * 00038 * Redistribution and use in source and binary forms, with or 00039 * without modification, are permitted provided that the following 00040 * conditions are met: 00041 * - Redistributions of source code must retain the above 00042 * copyright notice, this list of conditions and the following disclaimer. 00043 * - Redistributions in binary form must reproduce the above copyright 00044 * notice, this list of conditions and the following disclaimer in 00045 * the documentation and/or other materials provided with the distribution. 00046 * - Neither the name of the Mercury Engine nor the names of its 00047 * contributors may be used to endorse or promote products derived from 00048 * this software without specific prior written permission. 00049 * 00050 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00051 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00052 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00053 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE 00054 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00055 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 00056 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00057 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00058 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 00059 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00060 */