audlinux_oss.h
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: audlinux_oss.h,v 1.4.18.1 2004/07/09 02:02:00 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file,
- * are subject to the current version of the RealNetworks Public
- * Source License (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (the "RCSL") available at
- * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
- * will apply. You may also obtain the license terms directly from
- * RealNetworks. You may not use this file except in compliance with
- * the RPSL or, if you have a valid RCSL with RealNetworks applicable
- * to this file, the RCSL. Please see the applicable RPSL or RCSL for
- * the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the
- * portions it created.
- *
- * This file, and the files included with this file, is distributed
- * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
- * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
- * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
- * ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef _AUDLINUX
- #define _AUDLINUX
- //-----------------------------------------------
- // System includes.
- //-----------------------------------------------
- #if defined( _LINUX ) && !defined( __powerpc__ ) && !defined __alpha && !defined __sparc__
- #include "linux/soundcard.h"
- #elif defined(__powerpc__)
- #include "sys/soundcard.h"
- #elif defined _NETBSD
- #include "soundcard.h"
- #elif defined _FREEBSD || defined __alpha || defined __sparc__
- #include "machine/soundcard.h"
- #else
- #include "machine/soundcard.h"
- #endif
- //------------------------------------------------
- // local includes
- //------------------------------------------------
- #include "hxcom.h"
- #include "hxslist.h"
- #include "audUnix.h"
- class CAudioOutLinux : public CAudioOutUNIX
- {
- public:
- CAudioOutLinux();
- virtual ~CAudioOutLinux();
- protected:
-
- //-------------------------------------------------------
- //
- // Pure virtuals from CAudioOutUNIX.
- //
- //-------------------------------------------------------
- virtual INT16 _Imp_GetAudioFd(void);
- //This ones important.
- virtual UINT64 _GetBytesActualyPlayed(void) const;
- //Devic specific method to set the audio device characteristics. Sample rate,
- //bits-per-sample, etc.
- //Method *must* set member vars. m_unSampleRate and m_unNumChannels.
- virtual HX_RESULT _SetDeviceConfig( const HXAudioFormat* pFormat );
- //Device specific method to test wether or not the device supports the
- //give sample rate. If the device can not be opened, or otherwise tested,
- //it should return RA_AOE_DEVBUSY.
- virtual HX_RESULT _CheckSampleRate( ULONG32 ulSampleRate );
- virtual HX_RESULT _CheckFormat( const HXAudioFormat* pFormat );
- //Device specific method to write bytes out to the audiodevice and return a
- //count of bytes written.
- virtual HX_RESULT _WriteBytes( UCHAR* buffer, ULONG32 ulBuffLength, LONG32& lCount );
- //Device specific methods to open/close the mixer and audio devices.
- virtual HX_RESULT _OpenAudio();
- virtual HX_RESULT _CloseAudio();
- virtual HX_RESULT _OpenMixer();
- virtual HX_RESULT _CloseMixer();
- //Device specific method to reset device and return it to a state that it
- //can accept new sample rates, num channels, etc.
- virtual HX_RESULT _Reset();
- virtual HX_RESULT _Pause();
- virtual HX_RESULT _Resume();
- //Device specific method to get/set the devices current volume.
- virtual UINT16 _GetVolume() const;
- virtual HX_RESULT _SetVolume(UINT16 volume);
- //Device specific method to drain a device. This should play the remaining
- //bytes in the devices buffer and then return.
- virtual HX_RESULT _Drain();
- //Device specific method to return the amount of room available on the
- //audio device that can be written without blocking.
- virtual HX_RESULT _GetRoomOnDevice( ULONG32& ulBytes) const;
- //-----------------------------------------------
- // Some helper methods.
- //-----------------------------------------------
- void _SyncUpTimeStamps(ULONG32 lCount=0);
-
- private:
-
- //protect the unintentional copy ctor.
- CAudioOutLinux( const CAudioOutLinux& ); //Not implemented.
- ULONG32 m_ulLastTimeStamp;
- ULONG32 m_ulTickCount;
- UINT64 m_ulPausePosition;
- UINT64 m_ulLastBytesPlayed;
- int m_nDevID;
- int m_nMixerID;
- mutable BOOL m_bGetODelayFailed;
- mutable BOOL m_bGetOSpaceFailed;
- BOOL m_bTestGetODelay;
- };
- #endif //_AUDIOOUTLINUX