void SFXXAudioProvider::init()
{
// Create a temp XAudio object for device enumeration.
IXAudio2 *xAudio = NULL;
if ( !_createXAudio( &xAudio ) )
{
Con::errorf( "SFXXAudioProvider::init() - XAudio2 failed to load!" );
return;
}
// Add the devices to the info list.
UINT32 count = 0;
xAudio->GetDeviceCount( &count );
for ( UINT32 i = 0; i < count; i++ )
{
XAUDIO2_DEVICE_DETAILS details;
HRESULT hr = xAudio->GetDeviceDetails( i, &details );
if ( FAILED( hr ) )
continue;
// Add a device to the info list.
XADeviceInfo* info = new XADeviceInfo;
info->deviceIndex = i;
info->driver = String( "XAudio" );
info->name = String( details.DisplayName );
info->hasHardware = false;
info->maxBuffers = 64;
info->role = details.Role;
info->format = details.OutputFormat;
mDeviceInfo.push_back( info );
}
// We're done with XAudio for now.
SAFE_RELEASE( xAudio );
// If we have no devices... we're done.
if ( mDeviceInfo.empty() )
{
Con::errorf( "SFXXAudioProvider::init() - No valid XAudio2 devices found!" );
return;
}
// If we got this far then we should be able to
// safely create a device for XAudio.
regProvider( this );
}
bool XAudio2_Output::init(long sampleRate)
{
if( failed || initialized ) return false;
HRESULT hr;
// Initialize XAudio2
UINT32 flags = 0;
//#ifdef _DEBUG
// flags = XAUDIO2_DEBUG_ENGINE;
//#endif
hr = XAudio2Create( &xaud, flags );
if( hr != S_OK ) {
systemMessage( IDS_XAUDIO2_FAILURE, NULL );
failed = true;
return false;
}
freq = sampleRate;
// calculate the number of samples per frame first
// then multiply it with the size of a sample frame (16 bit * stereo)
soundBufferLen = ( freq / 60 ) * 4;
// create own buffers to store sound data because it must not be
// manipulated while the voice plays from it
buffers = (BYTE *)malloc( ( bufferCount + 1 ) * soundBufferLen );
// + 1 because we need one temporary buffer when all others are in use
WAVEFORMATEX wfx;
ZeroMemory( &wfx, sizeof( wfx ) );
wfx.wFormatTag = WAVE_FORMAT_PCM;
wfx.nChannels = 2;
wfx.nSamplesPerSec = freq;
wfx.wBitsPerSample = 16;
wfx.nBlockAlign = wfx.nChannels * ( wfx.wBitsPerSample / 8 );
wfx.nAvgBytesPerSec = wfx.nSamplesPerSec * wfx.nBlockAlign;
// create sound receiver
hr = xaud->CreateMasteringVoice(
&mVoice,
XAUDIO2_DEFAULT_CHANNELS,
XAUDIO2_DEFAULT_SAMPLERATE,
0,
theApp.xa2Device,
NULL );
if( hr != S_OK ) {
systemMessage( IDS_XAUDIO2_CANNOT_CREATE_MASTERINGVOICE, NULL );
failed = true;
return false;
}
// create sound emitter
hr = xaud->CreateSourceVoice( &sVoice, &wfx, 0, 4.0f, ¬ify );
if( hr != S_OK ) {
systemMessage( IDS_XAUDIO2_CANNOT_CREATE_SOURCEVOICE, NULL );
failed = true;
return false;
}
if( theApp.xa2Upmixing ) {
// set up stereo upmixing
XAUDIO2_DEVICE_DETAILS dd;
ZeroMemory( &dd, sizeof( dd ) );
hr = xaud->GetDeviceDetails( 0, &dd );
ASSERT( hr == S_OK );
float *matrix = NULL;
matrix = (float*)malloc( sizeof( float ) * 2 * dd.OutputFormat.Format.nChannels );
if( matrix == NULL ) return false;
bool matrixAvailable = true;
switch( dd.OutputFormat.Format.nChannels ) {
case 4: // 4.0
//Speaker \ Left Source Right Source
/*Front L*/ matrix[0] = 1.0000f; matrix[1] = 0.0000f;
/*Front R*/ matrix[2] = 0.0000f; matrix[3] = 1.0000f;
/*Back L*/ matrix[4] = 1.0000f; matrix[5] = 0.0000f;
/*Back R*/ matrix[6] = 0.0000f; matrix[7] = 1.0000f;
break;
case 5: // 5.0
//Speaker \ Left Source Right Source
/*Front L*/ matrix[0] = 1.0000f; matrix[1] = 0.0000f;
/*Front R*/ matrix[2] = 0.0000f; matrix[3] = 1.0000f;
/*Front C*/ matrix[4] = 0.7071f; matrix[5] = 0.7071f;
/*Side L*/ matrix[6] = 1.0000f; matrix[7] = 0.0000f;
/*Side R*/ matrix[8] = 0.0000f; matrix[9] = 1.0000f;
break;
case 6: // 5.1
//Speaker \ Left Source Right Source
/*Front L*/ matrix[0] = 1.0000f; matrix[1] = 0.0000f;
/*Front R*/ matrix[2] = 0.0000f; matrix[3] = 1.0000f;
/*Front C*/ matrix[4] = 0.7071f; matrix[5] = 0.7071f;
/*LFE */ matrix[6] = 0.0000f; matrix[7] = 0.0000f;
/*Side L*/ matrix[8] = 1.0000f; matrix[9] = 0.0000f;
/*Side R*/ matrix[10] = 0.0000f; matrix[11] = 1.0000f;
break;
case 7: // 6.1
//Speaker \ Left Source Right Source
/*Front L*/ matrix[0] = 1.0000f; matrix[1] = 0.0000f;
/*Front R*/ matrix[2] = 0.0000f; matrix[3] = 1.0000f;
/*Front C*/ matrix[4] = 0.7071f; matrix[5] = 0.7071f;
/*LFE */ matrix[6] = 0.0000f; matrix[7] = 0.0000f;
/*Side L*/ matrix[8] = 1.0000f; matrix[9] = 0.0000f;
/*Side R*/ matrix[10] = 0.0000f; matrix[11] = 1.0000f;
/*Back C*/ matrix[12] = 0.7071f; matrix[13] = 0.7071f;
break;
case 8: // 7.1
//Speaker \ Left Source Right Source
/*Front L*/ matrix[0] = 1.0000f; matrix[1] = 0.0000f;
/*Front R*/ matrix[2] = 0.0000f; matrix[3] = 1.0000f;
/*Front C*/ matrix[4] = 0.7071f; matrix[5] = 0.7071f;
/*LFE */ matrix[6] = 0.0000f; matrix[7] = 0.0000f;
/*Back L*/ matrix[8] = 1.0000f; matrix[9] = 0.0000f;
/*Back R*/ matrix[10] = 0.0000f; matrix[11] = 1.0000f;
/*Side L*/ matrix[12] = 1.0000f; matrix[13] = 0.0000f;
/*Side R*/ matrix[14] = 0.0000f; matrix[15] = 1.0000f;
break;
default:
matrixAvailable = false;
break;
}
if( matrixAvailable ) {
hr = sVoice->SetOutputMatrix( NULL, 2, dd.OutputFormat.Format.nChannels, matrix );
ASSERT( hr == S_OK );
}
free( matrix );
matrix = NULL;
}
hr = sVoice->Start( 0 );
ASSERT( hr == S_OK );
playing = true;
currentBuffer = 0;
device_changed = false;
initialized = true;
return true;
}
BOOL XAudio2_Config::OnInitDialog()
{
CDialog::OnInitDialog();
m_combo_dev.ResetContent();
m_slider_buffer.SetRange( 2, 10, FALSE );
m_slider_buffer.SetTicFreq( 1 );
m_slider_buffer.SetPos( (int)m_buffer_count );
CString info;
int pos = m_slider_buffer.GetPos();
info.Format( _T("%i frames = %.2f ms"), pos, (float)pos / 60.0f * 1000.0f );
m_info_buffer.SetWindowText( info );
HRESULT hr;
IXAudio2 *xa = NULL;
UINT32 flags = 0;
#ifdef _DEBUG
flags = XAUDIO2_DEBUG_ENGINE;
#endif
hr = XAudio2Create( &xa, flags );
if( hr != S_OK ) {
systemMessage( IDS_XAUDIO2_FAILURE, NULL );
} else {
UINT32 dev_count = 0;
hr = xa->GetDeviceCount( &dev_count );
if( hr != S_OK ) {
systemMessage( IDS_XAUDIO2_CANNOT_ENUMERATE_DEVICES, NULL );
} else {
XAUDIO2_DEVICE_DETAILS dd;
for( UINT32 i = 0; i < dev_count; i++ ) {
hr = xa->GetDeviceDetails( i, &dd );
if( hr != S_OK ) {
continue;
} else {
#ifdef _UNICODE
int id = m_combo_dev.AddString( dd.DisplayName );
#else
CHAR temp[256];
ZeroMemory( temp, sizeof( temp ) );
WideCharToMultiByte(
CP_ACP,
WC_NO_BEST_FIT_CHARS,
dd.DisplayName,
-1,
temp,
sizeof( temp ) - 1,
NULL,
NULL );
int id = m_combo_dev.AddString( temp );
#endif
if( id < 0 ) {
systemMessage( IDS_XAUDIO2_CANNOT_ENUMERATE_DEVICES, NULL );
break;
} else {
m_combo_dev.SetItemData( id, i );
}
}
}
// select the currently configured device {
int count = m_combo_dev.GetCount();
if( count > 0 ) {
for( int i = 0; i < count; i++ ) {
if( m_combo_dev.GetItemData( i ) == m_selected_device_index ) {
m_combo_dev.SetCurSel( i );
break;
}
}
}
// }
}
xa->Release();
xa = NULL;
}
return TRUE; // return TRUE unless you set the focus to a control
// EXCEPTION: OCX Property Pages should return FALSE
}
