#include "WavFile.h"
#include "Wave.h"
#include "SoundGlobal.h"

/////////////////////////////////////////////////////////////////////////////////////////
//

CWavFile::CWavFile()
	: m_pWaveFile( new CWaveFile )
	, m_pszFilename( NULL )
{
}

CWavFile::CWavFile( const char * szFilename )
	: m_pWaveFile( new CWaveFile )
	, m_pszFilename( NULL )
{
	Create( szFilename );
}

CWavFile::~CWavFile()
{
	Destroy();
	delete m_pWaveFile;
}

void	CWavFile::Create( const char * szFilename )
{
	if( m_pszFilename )
		delete [] m_pszFilename;

	m_pszFilename = new char[ strlen( szFilename ) + 1 ];
	strcpy( m_pszFilename, szFilename );

	HRESULT hr = m_pWaveFile->Open( (char*)szFilename, NULL, WAVEFILE_READ );
	if( hr != S_OK )
		SNDError( "Cannot open wave file : %s, ErrorCode : 0x%x", szFilename, hr );
}

void	CWavFile::Destroy()
{
	delete [] m_pszFilename;
	m_pszFilename = NULL;

	HRESULT hr = m_pWaveFile->Close();
	if( hr != S_OK )
		SNDError( "Cannot close wave file" );
}

WORD	CWavFile::GetBitsPerSample()
{
	WAVEFORMATEX * pwfx = m_pWaveFile->GetFormat();
	return pwfx->wBitsPerSample;
}

DWORD	CWavFile::GetSamplePerSec()
{
	WAVEFORMATEX * pwfx = m_pWaveFile->GetFormat();
	return pwfx->nSamplesPerSec;
}

WORD	CWavFile::GetChannelCount()
{
	WAVEFORMATEX * pwfx = m_pWaveFile->GetFormat();
	return pwfx->nChannels;
}

DWORD	CWavFile::GetSize()
{
	return m_pWaveFile->GetSize();
}

void	CWavFile::Reset()
{
	HRESULT hr = m_pWaveFile->ResetFile();
	if( hr != S_OK )
		SNDError( "Reset wave file failed!! ErrorCode : 0x%x", hr );
}

size_t	CWavFile::Read( void * pBuf, size_t readSize )
{
	DWORD sizeRead;
	HRESULT hr = m_pWaveFile->Read( (BYTE*)pBuf, readSize, &sizeRead );
	if( hr != S_OK )
		SNDError( "Cannot read wave file" );

	return sizeRead;
}

size_t	CWavFile::ReadWhole( void * pBuf )
{
	return Read( pBuf, 0xffffffff );
}

const char * CWavFile::GetFilename()
{
	return m_pszFilename;
}