cwavfile.h

Visual C++ 游戏开发与设计实例 源代码(所有)

// cWavFile.h: interface for the cWavFile class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_CWAVFILE_H__0E167DB5_3E6F_4805_8CB7_7D28193DABD1__INCLUDED_)
#define AFX_CWAVFILE_H__0E167DB5_3E6F_4805_8CB7_7D28193DABD1__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include <mmsystem.h>
#include <dxerr8.h>
#include <dsound.h>

#define WAVEFILE_READ   1
#define WAVEFILE_WRITE  2

class cWavFile
{
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:
    cWavFile();
    ~cWavFile();

    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 // !defined(AFX_CWAVFILE_H__0E167DB5_3E6F_4805_8CB7_7D28193DABD1__INCLUDED_)