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//-----------------------------------------------------------------------------
// File: WaveFile.h
//
// Copyright (c) Microsoft Corp. All rights reserved.
//-----------------------------------------------------------------------------
#ifndef DXUTWAVEFILE_H
#define DXUTWAVEFILE_H

//-----------------------------------------------------------------------------
// Typing macros 
//-----------------------------------------------------------------------------
#define WAVEFILE_READ   1
#define WAVEFILE_WRITE  2

//-----------------------------------------------------------------------------
// 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( LPWSTR 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 // DXUTWAVEFILE_H

SDKwavefile.h

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