/****************************************************************************
* Initialize:
* Creates and initializes the XACT engine
*****************************************************************************/
void SoundController::Init()
{
CoInitializeEx(NULL, COINIT_MULTITHREADED);
XACT3CreateEngine( /*XACT_FLAG_API_DEBUG_MODE*/ 0, &pXACT3Engine );
// Load the global settings file and pass it into XACTInitialize
VOID* pGlobalSettingsData = NULL;
DWORD dwGlobalSettingsFileSize = 0;
bool bSuccess = false;
DWORD dwBytesRead;
HANDLE hFile;
DWORD dwFileSize;
HANDLE hMapFile;
hFile = CreateFile( gsPath, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL );
if( hFile )
{
dwGlobalSettingsFileSize = GetFileSize( hFile, NULL );
if( dwGlobalSettingsFileSize != INVALID_FILE_SIZE )
{
// Using CoTaskMemAlloc so that XACT can clean up this data when its done
pGlobalSettingsData = CoTaskMemAlloc( dwGlobalSettingsFileSize );
if( pGlobalSettingsData )
{
if( 0 != ReadFile( hFile, pGlobalSettingsData, dwGlobalSettingsFileSize, &dwBytesRead, NULL ) )
{
bSuccess = true;
}
}
}
CloseHandle( hFile );
}
if( !bSuccess )
{
if( pGlobalSettingsData )
CoTaskMemFree( pGlobalSettingsData );
pGlobalSettingsData = NULL;
dwGlobalSettingsFileSize = 0;
}
XACT_RUNTIME_PARAMETERS xrParams = {0};
xrParams.pGlobalSettingsBuffer = pGlobalSettingsData;
xrParams.globalSettingsBufferSize = dwGlobalSettingsFileSize;
xrParams.globalSettingsFlags = XACT_FLAG_GLOBAL_SETTINGS_MANAGEDATA; // this will tell XACT to delete[] the buffer when its unneeded
//xrParams.fnNotificationCallback = XACTNotificationCallback;
xrParams.lookAheadTime = XACT_ENGINE_LOOKAHEAD_DEFAULT;
pXACT3Engine->Initialize( &xrParams );
// Setup 3D audio structs
ZeroMemory( &listener, sizeof( X3DAUDIO_LISTENER ) );
listener.OrientFront = D3DXVECTOR3( 0, 0, 1 );
listener.OrientTop = D3DXVECTOR3( 0, 1, 0 );
listener.Position = D3DXVECTOR3( 0, 5, 0 );
listener.Velocity = D3DXVECTOR3( 0, 0, 0 );
ZeroMemory( &emitter, sizeof( X3DAUDIO_EMITTER ) );
emitter.pCone = NULL;
emitter.OrientFront = D3DXVECTOR3( 0, 0, 1 );
emitter.OrientTop = D3DXVECTOR3( 0, 1, 0 );
emitter.Position = D3DXVECTOR3( 0, 0, 0 );
emitter.Velocity = D3DXVECTOR3( 0, 0, 0 );
emitter.ChannelCount = 2;
emitter.ChannelRadius = 1.0f;
emitter.pChannelAzimuths = NULL;
emitter.pVolumeCurve = NULL;
emitter.pLFECurve = NULL;
emitter.pLPFDirectCurve = NULL;
emitter.pLPFReverbCurve = NULL;
emitter.pReverbCurve = NULL;
emitter.CurveDistanceScaler = 1.0f;
emitter.DopplerScaler = NULL;
DelayTimes[0] = 0.0f;
DelayTimes[1] = 0.0f;
// Init MatrixCoefficients. XACT will fill in the values
ZeroMemory( &MatrixCoefficients, sizeof( FLOAT32 ) * 8 * 2 );
// query number of channels on the final mix
WAVEFORMATEXTENSIBLE wfxFinalMixFormat;
pXACT3Engine->GetFinalMixFormat( &wfxFinalMixFormat );
WORD nDstChannelCount = wfxFinalMixFormat.Format.nChannels;
ZeroMemory( &dspSettings, sizeof( X3DAUDIO_DSP_SETTINGS ) );
dspSettings.pMatrixCoefficients = MatrixCoefficients;
dspSettings.pDelayTimes = DelayTimes;
dspSettings.SrcChannelCount = 2;
dspSettings.DstChannelCount = nDstChannelCount;
// Initialize 3D settings
XACT3DInitialize( pXACT3Engine, x3DInstance );
// Read and register the wave bank file with XACT using memory mapped file IO
// Memory mapped files tend to be the fastest for most situations assuming you
// have enough virtual address space for a full map of the file
hFile = CreateFile( wbPath, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL );
if( hFile != INVALID_HANDLE_VALUE )
{
dwFileSize = GetFileSize( hFile, NULL );
if( dwFileSize != -1 )
{
hMapFile = CreateFileMapping( hFile, NULL, PAGE_READONLY, 0, dwFileSize, NULL );
if( hMapFile )
{
pbWaveBank = MapViewOfFile( hMapFile, FILE_MAP_READ, 0, 0, 0 );
if( pbWaveBank )
{
pXACT3Engine->CreateInMemoryWaveBank( pbWaveBank, dwFileSize, 0,
0, &pWaveBank );
}
CloseHandle( hMapFile ); // pbWaveBank is maintains a handle on the file so close this unneeded handle
}
}
CloseHandle( hFile ); // pbWaveBank is maintains a handle on the file so close this unneeded handle
}
// Read and register the sound bank file with XACT. Do not use memory mapped file IO because the
// memory needs to be read/write and the working set of sound banks are small.
hFile = CreateFile( sbPath, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL );
if( hFile != INVALID_HANDLE_VALUE )
{
dwFileSize = GetFileSize( hFile, NULL );
if( dwFileSize != -1 )
{
// Allocate the data here and free the data when recieving the sound bank destroyed notification
pbSoundBank = new BYTE[dwFileSize];
if( pbSoundBank )
{
if( 0 != ReadFile( hFile, pbSoundBank, dwFileSize, &dwBytesRead, NULL ) )
{
pXACT3Engine->CreateSoundBank( pbSoundBank, dwFileSize, 0,
0, &pSoundBank );
}
}
}
CloseHandle( hFile );
}
bInitialized = true;
iBackgroundMusic = pSoundBank->GetCueIndex( "Test" );
iHCIdle = pSoundBank->GetCueIndex( "HC_Idle" );
}
bool CSoundComponent::InitXACT(const char* engine_xgs)
{
HRESULT hr;
CoInitializeEx( NULL, COINIT_MULTITHREADED ); // COINIT_APARTMENTTHREADED will work too
//TODO("Create the XACT engine");
hr=XACT3CreateEngine(0, &mpXEngine);
if( FAILED( hr ) || mpXEngine == NULL )
{
FAIL("Problems creating XACT engine","InitXACT Failed");
return false;
}
// Load the global settings file and pass it into XACTInitialize
VOID* pGlobalSettingsData = NULL;
DWORD dwGlobalSettingsFileSize = 0;
bool bSuccess = false;
HANDLE hFile = CreateFile( engine_xgs, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL );
if( hFile!=INVALID_HANDLE_VALUE )
{
dwGlobalSettingsFileSize = GetFileSize( hFile, NULL );
if( dwGlobalSettingsFileSize != INVALID_FILE_SIZE )
{
pGlobalSettingsData = CoTaskMemAlloc( dwGlobalSettingsFileSize );
if( pGlobalSettingsData )
{
DWORD dwBytesRead;
if( 0 != ReadFile( hFile, pGlobalSettingsData, dwGlobalSettingsFileSize, &dwBytesRead, NULL ) )
{
bSuccess = true;
}
}
}
CloseHandle( hFile );
}
if( !bSuccess )
{
if( pGlobalSettingsData )
CoTaskMemFree( pGlobalSettingsData );
pGlobalSettingsData = NULL;
dwGlobalSettingsFileSize = 0;
FAIL(engine_xgs,"Problems opening engine file");
return false;
}
// Initialize & create the XACT runtime
XACT_RUNTIME_PARAMETERS xrParams = {0};
xrParams.lookAheadTime = XACT_ENGINE_LOOKAHEAD_DEFAULT;
xrParams.pGlobalSettingsBuffer = pGlobalSettingsData;
xrParams.globalSettingsBufferSize = dwGlobalSettingsFileSize;
xrParams.globalSettingsFlags = XACT_FLAG_GLOBAL_SETTINGS_MANAGEDATA; // this will tell XACT to delete[] the buffer when its unneeded
//TODO(Initalise the XACT engine);
hr=mpXEngine->Initialize(&xrParams);
if( FAILED( hr ) )
{
FAIL(engine_xgs,"Problems Initalising XACT engine");
return false;
}
X3DAUDIO_EMITTER emitter = {0};
X3DAUDIO_LISTENER listener = {0};
listener.OrientFront = D3DXVECTOR3( 0, 0, 1 );
listener.OrientTop = D3DXVECTOR3( 0, 1, 0 );
listener.Position = D3DXVECTOR3( 0, 0, 0 );
listener.Velocity = D3DXVECTOR3( 0, 0, 0 );
// the following need to be orthonormal
emitter.OrientFront = D3DXVECTOR3( 0, 0, 1 );
emitter.OrientTop = D3DXVECTOR3( 0, 1, 0 );
emitter.Position = D3DXVECTOR3( 0, 0, 0 );
emitter.Velocity = D3DXVECTOR3( 0, 0, 0 ); // needs to not be zero if you want to hear Doppler effect
// emitter ChannelCount and DSP Setting's SrcChannelCount must match
emitter.ChannelCount = 2;
// this will be set by XACT3DCalculate if ChannelCount > 1.
emitter.ChannelRadius = 1.0f;
// will be set by XACT3DCalculate
emitter.pChannelAzimuths = NULL;
// will be set by XACT3DCalculate
emitter.pVolumeCurve = emitter.pLFECurve
= emitter.pLPFDirectCurve
= emitter.pLPFReverbCurve
= emitter.pReverbCurve
= NULL;
emitter.CurveDistanceScaler = 1.0;
emitter.DopplerScaler = 1.0f;
hr = XACT3DInitialize(mpXEngine, xact3dInstance);
if( FAILED( hr ) )
{
FAIL(engine_xgs,"Problems Initalising XACT 3D engine");
return false;
}
// check how many output channels are supported
WAVEFORMATEXTENSIBLE format;
hr = mpXEngine->GetFinalMixFormat(&format);
if(FAILED(hr))
{
FAIL("BLABLBA");
}
// fill the DSP
ZeroMemory(&dspSettings,sizeof(dspSettings));
// different code's seem to suggest 1 or 2 channels for the emitter
dspSettings.SrcChannelCount = 1;
dspSettings.DstChannelCount = format.Format.nChannels; // as supported
dspSettings.pMatrixCoefficients = new FLOAT32[dspSettings.SrcChannelCount * dspSettings.DstChannelCount];
ZeroMemory(dspSettings.pMatrixCoefficients ,sizeof(FLOAT32)*dspSettings.SrcChannelCount * dspSettings.DstChannelCount);
return true;
}
