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dsutil.h
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//-----------------------------------------------------------------------------
// File: DSUtil.h
//
// Desc:
//
// Copyright (c) 1999-2001 Microsoft Corp. All rights reserved.
//-----------------------------------------------------------------------------
#ifndef DSUTIL_H
#define DSUTIL_H
#include <windows.h>
#include <mmsystem.h>
#include <mmreg.h>
#include <dsound.h>
//-----------------------------------------------------------------------------
// Classes used by this header
//-----------------------------------------------------------------------------
class CSoundManager;
class CSound;
class CStreamingSound;
class CWaveFile;
//-----------------------------------------------------------------------------
// Typing macros
//-----------------------------------------------------------------------------
#define WAVEFILE_READ 1
#define WAVEFILE_WRITE 2
#define DSUtil_StopSound(s) { if(s) s->Stop(); }
#define DSUtil_PlaySound(s) { if(s) s->Play( 0, 0 ); }
#define DSUtil_PlaySoundLooping(s) { if(s) s->Play( 0, DSBPLAY_LOOPING ); }
//-----------------------------------------------------------------------------
// Name: class CSoundManager
// Desc:
//-----------------------------------------------------------------------------
class CSoundManager
{
protected:
LPDIRECTSOUND8 m_pDS;
public:
CSoundManager();
~CSoundManager();
HRESULT Initialize( HWND hWnd, DWORD dwCoopLevel );
inline LPDIRECTSOUND8 GetDirectSound() { return m_pDS; }
HRESULT SetPrimaryBufferFormat( DWORD dwPrimaryChannels, DWORD dwPrimaryFreq, DWORD dwPrimaryBitRate );
HRESULT Get3DListenerInterface( LPDIRECTSOUND3DLISTENER* ppDSListener );
HRESULT Create( CSound** ppSound, LPTSTR strWaveFileName, DWORD dwCreationFlags = 0, GUID guid3DAlgorithm = GUID_NULL, DWORD dwNumBuffers = 1 );
HRESULT CreateFromMemory( CSound** ppSound, BYTE* pbData, ULONG ulDataSize, LPWAVEFORMATEX pwfx, DWORD dwCreationFlags = 0, GUID guid3DAlgorithm = GUID_NULL, DWORD dwNumBuffers = 1 );
HRESULT CreateStreaming( CStreamingSound** ppStreamingSound, LPTSTR strWaveFileName, DWORD dwCreationFlags, GUID guid3DAlgorithm, DWORD dwNotifyCount, DWORD dwNotifySize, HANDLE hNotifyEvent );
};
//-----------------------------------------------------------------------------
// Name: class CSound
// Desc: Encapsulates functionality of a DirectSound buffer.
//-----------------------------------------------------------------------------
class CSound
{
protected:
LPDIRECTSOUNDBUFFER* m_apDSBuffer;
DWORD m_dwDSBufferSize;
CWaveFile* m_pWaveFile;
DWORD m_dwNumBuffers;
DWORD m_dwCreationFlags;
HRESULT RestoreBuffer( LPDIRECTSOUNDBUFFER pDSB, BOOL* pbWasRestored );
public:
CSound( LPDIRECTSOUNDBUFFER* apDSBuffer, DWORD dwDSBufferSize, DWORD dwNumBuffers, CWaveFile* pWaveFile, DWORD dwCreationFlags );
virtual ~CSound();
HRESULT Get3DBufferInterface( DWORD dwIndex, LPDIRECTSOUND3DBUFFER* ppDS3DBuffer );
HRESULT FillBufferWithSound( LPDIRECTSOUNDBUFFER pDSB, BOOL bRepeatWavIfBufferLarger );
LPDIRECTSOUNDBUFFER GetFreeBuffer();
LPDIRECTSOUNDBUFFER GetBuffer( DWORD dwIndex );
HRESULT Play( DWORD dwPriority = 0, DWORD dwFlags = 0, LONG lVolume = 0, LONG lFrequency = -1, LONG lPan = 0 );
HRESULT Play3D( LPDS3DBUFFER p3DBuffer, DWORD dwPriority = 0, DWORD dwFlags = 0, LONG lFrequency = 0 );
HRESULT Stop();
HRESULT Reset();
BOOL IsSoundPlaying();
};
//-----------------------------------------------------------------------------
// Name: class CStreamingSound
// Desc: Encapsulates functionality to play a wave file with DirectSound.
// The Create() method loads a chunk of wave file into the buffer,
// and as sound plays more is written to the buffer by calling
// HandleWaveStreamNotification() whenever hNotifyEvent is signaled.
//-----------------------------------------------------------------------------
class CStreamingSound : public CSound
{
protected:
DWORD m_dwLastPlayPos;
DWORD m_dwPlayProgress;
DWORD m_dwNotifySize;
DWORD m_dwNextWriteOffset;
BOOL m_bFillNextNotificationWithSilence;
public:
CStreamingSound( LPDIRECTSOUNDBUFFER pDSBuffer, DWORD dwDSBufferSize, CWaveFile* pWaveFile, DWORD dwNotifySize );
~CStreamingSound();
HRESULT HandleWaveStreamNotification( BOOL bLoopedPlay );
HRESULT Reset();
};
//-----------------------------------------------------------------------------
// Name: class CWaveFile
// Desc: Encapsulates reading or writing sound data to or from a wave file
//-----------------------------------------------------------------------------
class CWaveFile
{
public:
WAVEFORMATEX* m_pwfx; // Pointer to WAVEFORMATEX structure
HMMIO m_hmmio; // MM I/O handle for the WAVE
MMCKINFO m_ck; // Multimedia RIFF chunk
MMCKINFO m_ckRiff; // Use in opening a WAVE file
DWORD m_dwSize; // The size of the wave file
MMIOINFO m_mmioinfoOut;
DWORD m_dwFlags;
BOOL m_bIsReadingFromMemory;
BYTE* m_pbData;
BYTE* m_pbDataCur;
ULONG m_ulDataSize;
CHAR* m_pResourceBuffer;
protected:
HRESULT ReadMMIO();
HRESULT WriteMMIO( WAVEFORMATEX *pwfxDest );
public:
CWaveFile();
~CWaveFile();
HRESULT Open( LPTSTR strFileName, WAVEFORMATEX* pwfx, DWORD dwFlags );
HRESULT OpenFromMemory( BYTE* pbData, ULONG ulDataSize, WAVEFORMATEX* pwfx, DWORD dwFlags );
HRESULT Close();
HRESULT Read( BYTE* pBuffer, DWORD dwSizeToRead, DWORD* pdwSizeRead );
HRESULT Write( UINT nSizeToWrite, BYTE* pbData, UINT* pnSizeWrote );
DWORD GetSize();
HRESULT ResetFile();
WAVEFORMATEX* GetFormat() { return m_pwfx; };
};
#endif // DSUTIL_H