75 lines
2.7 KiB
C
75 lines
2.7 KiB
C
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/*==========================================================================
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*
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* Copyright (C) 1999 Microsoft Corporation. All Rights Reserved.
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*
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* File: dsplayd.h
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* Content: Definition of the CDirectSoundPlaybackDevice class
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*
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* History:
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* Date By Reason
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* ==== == ======
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* 07/16/99 rodtoll Created
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* 07/30/99 rodtoll Updated to allow creation of object using a pre-created
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* DirectSound Object.
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* 08/04/99 rodtoll Added member to retrieve DirectSound object
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* 11/01/99 rodtoll Updated to conform to new interface
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* 11/12/99 rodtoll Modified abstraction for new waveOut support.
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* Now abstracted types look almost like dsound objects
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* 12/01/99 rodtoll Bug #121815 - Static in playback/record
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* Added implementations of Set/GetMixerQuality
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* (For Win2k/Millenium/Systems w/DX7)
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* rodtoll Cleanup of class
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* 01/27/2000 rodtoll Updated sound classes to accept playback flags,
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* buffer structures and DSBUFFERDESC instead of DSBUFFERDESC1
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* 02/17/2000 rodtoll Updated so primary buffer is held instead of released immediately
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* 04/04/2001 rodtoll WINBUG #343428 - DPVOICE: Voice wizard's playback is very choppy.
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*
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***************************************************************************/
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#ifndef __DIRECTSOUNDPLAYBACKDEVICE_H
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#define __DIRECTSOUNDPLAYBACKDEVICE_H
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class CDirectSoundPlaybackDevice;
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// CDirectSoundPlaybackDevice
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//
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// This class is responsible for providing an implementation of the
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// CAudioPLaybackDevice class for DirectSound. A single instance
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// of this class represents a DirectSound playback device and
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// is used to initialize the sound device and act as a class
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// factory for CAudioPlaybackBuffers for the DirectSound
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// sub-system.
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//
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class CDirectSoundPlaybackDevice: public CAudioPlaybackDevice
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{
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public:
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CDirectSoundPlaybackDevice( );
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virtual ~CDirectSoundPlaybackDevice();
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public: // Initialization
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HRESULT Initialize( const GUID &guidDevice, HWND hwndOwner, WAVEFORMATEX *primaryFormat, BOOL fPriorityMode );
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HRESULT Initialize( LPDIRECTSOUND lpDirectSound, const GUID &guidDevice );
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BOOL IsEmulated() { return m_fEmulated; };
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HRESULT CreateBuffer( LPDSBUFFERDESC lpdsBufferDesc, DWORD dwFrameSize, CAudioPlaybackBuffer **lpapBuffer );
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LPDIRECTSOUND GetPlaybackDevice();
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HRESULT GetMixerQuality( DIRECTSOUNDMIXER_SRCQUALITY *psrcQuality );
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HRESULT SetMixerQuality( const DIRECTSOUNDMIXER_SRCQUALITY srcQuality );
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protected:
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HRESULT CheckAndSetEmulated( );
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LPDIRECTSOUND m_lpdsDirectSound; // DirectSound object associated w/this object
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LPDIRECTSOUNDBUFFER m_lpdsPrimaryBuffer;
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HWND m_hwndOwner;
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GUID m_guidDevice;
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BOOL m_fEmulated;
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};
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#endif
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