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171 lines
5.7 KiB
C++
171 lines
5.7 KiB
C++
//-----------------------------------------------------------------------------
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// File: DSUtil.h
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//
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// Desc:
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//
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// Copyright (c) 1999-2000 Microsoft Corp. All rights reserved.
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//-----------------------------------------------------------------------------
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#ifndef DSUTIL_H
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#define DSUTIL_H
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#include <windows.h>
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#include <mmsystem.h>
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#include <mmreg.h>
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#include <dsound.h>
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//-----------------------------------------------------------------------------
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// Classes used by this header
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//-----------------------------------------------------------------------------
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class CSoundManager;
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class CSound;
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class CStreamingSound;
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class CWaveFile;
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//-----------------------------------------------------------------------------
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// Typing macros
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//-----------------------------------------------------------------------------
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#define WAVEFILE_READ 1
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#define WAVEFILE_WRITE 2
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#define DSUtil_StopSound(s) { if(s) s->Stop(); }
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#define DSUtil_PlaySound(s) { if(s) s->Play( 0, 0 ); }
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#define DSUtil_PlaySoundLooping(s) { if(s) s->Play( 0, DSBPLAY_LOOPING ); }
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//-----------------------------------------------------------------------------
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// Name: class CSoundManager
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// Desc:
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//-----------------------------------------------------------------------------
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class CSoundManager
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{
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protected:
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LPDIRECTSOUND8 m_pDS;
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public:
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CSoundManager();
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~CSoundManager();
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HRESULT Initialize( HWND hWnd, DWORD dwCoopLevel, DWORD dwPrimaryChannels, DWORD dwPrimaryFreq, DWORD dwPrimaryBitRate );
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inline LPDIRECTSOUND GetDirectSound() { return m_pDS; }
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HRESULT SetPrimaryBufferFormat( DWORD dwPrimaryChannels, DWORD dwPrimaryFreq, DWORD dwPrimaryBitRate );
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HRESULT Get3DListenerInterface( LPDIRECTSOUND3DLISTENER* ppDSListener );
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HRESULT Create( CSound** ppSound, LPTSTR strWaveFileName, DWORD dwCreationFlags = 0, GUID guid3DAlgorithm = GUID_NULL, DWORD dwNumBuffers = 1 );
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HRESULT CreateFromMemory( CSound** ppSound, BYTE* pbData, ULONG ulDataSize, LPWAVEFORMATEX pwfx, DWORD dwCreationFlags = 0, GUID guid3DAlgorithm = GUID_NULL, DWORD dwNumBuffers = 1 );
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HRESULT CreateStreaming( CStreamingSound** ppStreamingSound, LPTSTR strWaveFileName, DWORD dwCreationFlags, GUID guid3DAlgorithm, DWORD dwNotifyCount, DWORD dwNotifySize, HANDLE hNotifyEvent );
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};
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//-----------------------------------------------------------------------------
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// Name: class CSound
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// Desc: Encapsulates functionality of a DirectSound buffer.
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//-----------------------------------------------------------------------------
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class CSound
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{
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protected:
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LPDIRECTSOUNDBUFFER* m_apDSBuffer;
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DWORD m_dwDSBufferSize;
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CWaveFile* m_pWaveFile;
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DWORD m_dwNumBuffers;
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HRESULT RestoreBuffer( LPDIRECTSOUNDBUFFER pDSB, BOOL* pbWasRestored );
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public:
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CSound( LPDIRECTSOUNDBUFFER* apDSBuffer, DWORD dwDSBufferSize, DWORD dwNumBuffers, CWaveFile* pWaveFile );
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virtual ~CSound();
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HRESULT Get3DBufferInterface( DWORD dwIndex, LPDIRECTSOUND3DBUFFER* ppDS3DBuffer );
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HRESULT FillBufferWithSound( LPDIRECTSOUNDBUFFER pDSB, BOOL bRepeatWavIfBufferLarger );
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LPDIRECTSOUNDBUFFER GetFreeBuffer();
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LPDIRECTSOUNDBUFFER GetBuffer( DWORD dwIndex );
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HRESULT Play( DWORD dwPriority, DWORD dwFlags );
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HRESULT Stop();
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HRESULT Reset();
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BOOL IsSoundPlaying();
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};
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//-----------------------------------------------------------------------------
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// Name: class CStreamingSound
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// Desc: Encapsulates functionality to play a wave file with DirectSound.
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// The Create() method loads a chunk of wave file into the buffer,
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// and as sound plays more is written to the buffer by calling
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// HandleWaveStreamNotification() whenever hNotifyEvent is signaled.
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//-----------------------------------------------------------------------------
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class CStreamingSound : public CSound
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{
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protected:
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DWORD m_dwLastPlayPos;
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DWORD m_dwPlayProgress;
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DWORD m_dwNotifySize;
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DWORD m_dwNextWriteOffset;
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BOOL m_bFillNextNotificationWithSilence;
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public:
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CStreamingSound( LPDIRECTSOUNDBUFFER pDSBuffer, DWORD dwDSBufferSize, CWaveFile* pWaveFile, DWORD dwNotifySize );
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~CStreamingSound();
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HRESULT HandleWaveStreamNotification( BOOL bLoopedPlay );
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HRESULT Reset();
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};
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//-----------------------------------------------------------------------------
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// Name: class CWaveFile
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// Desc: Encapsulates reading or writing sound data to or from a wave file
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//-----------------------------------------------------------------------------
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class CWaveFile
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{
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public:
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WAVEFORMATEX* m_pwfx; // Pointer to WAVEFORMATEX structure
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HMMIO m_hmmio; // MM I/O handle for the WAVE
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MMCKINFO m_ck; // Multimedia RIFF chunk
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MMCKINFO m_ckRiff; // Use in opening a WAVE file
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DWORD m_dwSize; // The size of the wave file
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MMIOINFO m_mmioinfoOut;
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DWORD m_dwFlags;
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BOOL m_bIsReadingFromMemory;
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BYTE* m_pbData;
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BYTE* m_pbDataCur;
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ULONG m_ulDataSize;
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protected:
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HRESULT ReadMMIO();
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HRESULT WriteMMIO( WAVEFORMATEX *pwfxDest );
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public:
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CWaveFile();
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~CWaveFile();
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HRESULT Open( LPTSTR strFileName, WAVEFORMATEX* pwfx, DWORD dwFlags );
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HRESULT OpenFromMemory( BYTE* pbData, ULONG ulDataSize, WAVEFORMATEX* pwfx, DWORD dwFlags );
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HRESULT Close();
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HRESULT Read( BYTE* pBuffer, DWORD dwSizeToRead, DWORD* pdwSizeRead );
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HRESULT Write( UINT nSizeToWrite, BYTE* pbData, UINT* pnSizeWrote );
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DWORD GetSize();
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HRESULT ResetFile();
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WAVEFORMATEX* GetFormat() { return m_pwfx; };
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};
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#endif // DSUTIL_H
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