www.pudn.com > Samples-latest.zip > dmutil.cpp
//----------------------------------------------------------------------------- // File: DMUtil.cpp // // Desc: DirectMusic framework classes for playing DirectMusic segments and // DirectMusic scripts. Feel free to use this class as a starting point // for adding extra functionality. // // Copyright (c) Microsoft Corp. All rights reserved. //----------------------------------------------------------------------------- #define STRICT #include#include #include #include #include "DMUtil.h" #include "DXUtil.h" //----------------------------------------------------------------------------- // Name: CMusicManager::CMusicManager() // Desc: Constructs the class //----------------------------------------------------------------------------- CMusicManager::CMusicManager() { m_pLoader = NULL; m_pPerformance = NULL; m_pDSListener = NULL; // Initialize COM HRESULT hr = CoInitialize(NULL); m_bCleanupCOM = SUCCEEDED(hr); } //----------------------------------------------------------------------------- // Name: CMusicManager::~CMusicManager() // Desc: Destroys the class //----------------------------------------------------------------------------- CMusicManager::~CMusicManager() { SAFE_RELEASE( m_pLoader ); SAFE_RELEASE( m_pDSListener ); if( m_pPerformance ) { // If there is any music playing, stop it. m_pPerformance->Stop( NULL, NULL, 0, 0 ); m_pPerformance->CloseDown(); SAFE_RELEASE( m_pPerformance ); } if( m_bCleanupCOM ) CoUninitialize(); } //----------------------------------------------------------------------------- // Name: CMusicManager::Initialize() // Desc: Inits DirectMusic using a standard audio path //----------------------------------------------------------------------------- HRESULT CMusicManager::Initialize( HWND hWnd, DWORD dwPChannels, DWORD dwDefaultPathType, LPDIRECTSOUND pDS ) { HRESULT hr; IDirectSound** ppDirectSound; if( pDS ) ppDirectSound = &pDS; else ppDirectSound = NULL; // Create loader object if( FAILED( hr = CoCreateInstance( CLSID_DirectMusicLoader, NULL, CLSCTX_INPROC, IID_IDirectMusicLoader8, (void**)&m_pLoader ) ) ) return DXTRACE_ERR_MSGBOX( TEXT("CoCreateInstance"), hr ); // Create performance object if( FAILED( hr = CoCreateInstance( CLSID_DirectMusicPerformance, NULL, CLSCTX_INPROC, IID_IDirectMusicPerformance8, (void**)&m_pPerformance ) ) ) return DXTRACE_ERR_MSGBOX( TEXT("CoCreateInstance"), hr ); // Initialize the performance with the standard audio path. // This initializes both DirectMusic and DirectSound and // sets up the synthesizer. Typcially its easist to use an // audio path for playing music and sound effects. if( FAILED( hr = m_pPerformance->InitAudio( NULL, ppDirectSound, hWnd, dwDefaultPathType, dwPChannels, DMUS_AUDIOF_ALL, NULL ) ) ) { if( hr == DSERR_NODRIVER ) { DXTRACE( TEXT("Warning: No sound card found\n") ); return hr; } return DXTRACE_ERR_MSGBOX( TEXT("InitAudio"), hr ); } // Get the listener from the in the default audio path. IDirectMusicAudioPath8* pAudioPath = GetDefaultAudioPath(); if( pAudioPath ) // might be NULL if dwDefaultPathType == 0 { if( SUCCEEDED( hr = pAudioPath->GetObjectInPath( 0, DMUS_PATH_PRIMARY_BUFFER, 0, GUID_NULL, 0, IID_IDirectSound3DListener, (LPVOID*) &m_pDSListener ) ) ) { // Get listener parameters m_dsListenerParams.dwSize = sizeof(DS3DLISTENER); m_pDSListener->GetAllParameters( &m_dsListenerParams ); } } return S_OK; } //----------------------------------------------------------------------------- // Name: CMusicManager::SetSearchDirectory() // Desc: Sets the search directory. If not called, the current working // directory is used to load content. //----------------------------------------------------------------------------- HRESULT CMusicManager::SetSearchDirectory( const TCHAR* strMediaPath ) { if( NULL == m_pLoader ) return E_UNEXPECTED; if( NULL == strMediaPath ) return E_INVALIDARG; // DMusic only takes wide strings WCHAR wstrMediaPath[MAX_PATH]; DXUtil_ConvertGenericStringToWideCch( wstrMediaPath, strMediaPath, sizeof(wstrMediaPath)/sizeof(TCHAR) ); return m_pLoader->SetSearchDirectory( GUID_DirectMusicAllTypes, wstrMediaPath, FALSE ); } //----------------------------------------------------------------------------- // Name: CMusicManager::GetDefaultAudioPath() // Desc: //----------------------------------------------------------------------------- IDirectMusicAudioPath8* CMusicManager::GetDefaultAudioPath() { IDirectMusicAudioPath8* pAudioPath = NULL; if( NULL == m_pPerformance ) return NULL; m_pPerformance->GetDefaultAudioPath( &pAudioPath ); return pAudioPath; } //----------------------------------------------------------------------------- // Name: CMusicManager::CollectGarbage() // Desc: Tells the loader to cleanup any garbage from previously // released objects. //----------------------------------------------------------------------------- VOID CMusicManager::CollectGarbage() { if( m_pLoader ) m_pLoader->CollectGarbage(); } //----------------------------------------------------------------------------- // Name: CMusicManager::StopAll() // Desc: Stops all segments. Also simply calling Stop() on the segment won't // stop any MIDI sustain pedals, but calling StopAll() will. //----------------------------------------------------------------------------- VOID CMusicManager::StopAll() { if( m_pPerformance ) m_pPerformance->Stop( NULL, NULL, 0, 0 ); } //----------------------------------------------------------------------------- // Name: CMusicManager::CreateSegmentFromFile() // Desc: //----------------------------------------------------------------------------- HRESULT CMusicManager::CreateSegmentFromFile( CMusicSegment** ppSegment, LPCTSTR strFileName, BOOL bDownloadNow, BOOL bIsMidiFile ) { HRESULT hr; IDirectMusicSegment8* pSegment = NULL; // DMusic only takes wide strings WCHAR wstrFileName[MAX_PATH]; DXUtil_ConvertGenericStringToWideCch( wstrFileName, strFileName, sizeof(wstrFileName)/sizeof(TCHAR) ); if ( FAILED( hr = m_pLoader->LoadObjectFromFile( CLSID_DirectMusicSegment, IID_IDirectMusicSegment8, wstrFileName, (LPVOID*) &pSegment ) ) ) { if( hr == DMUS_E_LOADER_FAILEDOPEN ) return hr; return DXTRACE_ERR_MSGBOX( TEXT("LoadObjectFromFile"), hr ); } *ppSegment = new CMusicSegment( m_pPerformance, m_pLoader, pSegment ); if (!*ppSegment) return E_OUTOFMEMORY; if( bIsMidiFile ) { if( FAILED( hr = pSegment->SetParam( GUID_StandardMIDIFile, 0xFFFFFFFF, 0, 0, NULL ) ) ) return DXTRACE_ERR_MSGBOX( TEXT("SetParam"), hr ); } if( bDownloadNow ) { if( FAILED( hr = (*ppSegment)->Download() ) ) return DXTRACE_ERR_MSGBOX( TEXT("Download"), hr ); } return S_OK; } //----------------------------------------------------------------------------- // Name: CMusicManager::CreateSegmentFromResource() // Desc: //----------------------------------------------------------------------------- HRESULT CMusicManager::CreateSegmentFromResource( CMusicSegment** ppSegment, LPCTSTR strResource, LPCTSTR strResourceType, BOOL bDownloadNow, BOOL bIsMidiFile ) { HRESULT hr; IDirectMusicSegment8* pSegment = NULL; HRSRC hres = NULL; void* pMem = NULL; DWORD dwSize = 0; DMUS_OBJECTDESC objdesc; // Find the resource hres = FindResource( NULL,strResource,strResourceType ); if( NULL == hres ) return E_FAIL; // Load the resource pMem = (void*)LoadResource( NULL, hres ); if( NULL == pMem ) return E_FAIL; // Store the size of the resource dwSize = SizeofResource( NULL, hres ); // Set up our object description ZeroMemory(&objdesc,sizeof(DMUS_OBJECTDESC)); objdesc.dwSize = sizeof(DMUS_OBJECTDESC); objdesc.dwValidData = DMUS_OBJ_MEMORY | DMUS_OBJ_CLASS; objdesc.guidClass = CLSID_DirectMusicSegment; objdesc.llMemLength =(LONGLONG)dwSize; objdesc.pbMemData = (BYTE*)pMem; if (FAILED ( hr = m_pLoader->GetObject( &objdesc, IID_IDirectMusicSegment8, (void**)&pSegment ) ) ) { if( hr == DMUS_E_LOADER_FAILEDOPEN ) return hr; return DXTRACE_ERR_MSGBOX( TEXT("LoadObjectFromFile"), hr ); } *ppSegment = new CMusicSegment( m_pPerformance, m_pLoader, pSegment ); if( NULL == *ppSegment ) return E_OUTOFMEMORY; if( bIsMidiFile ) { // Do this to make sure that the default General MIDI set // is connected appropriately to the MIDI file and // all instruments sound correct. if( FAILED( hr = pSegment->SetParam( GUID_StandardMIDIFile, 0xFFFFFFFF, 0, 0, NULL ) ) ) return DXTRACE_ERR_MSGBOX( TEXT("SetParam"), hr ); } if( bDownloadNow ) { // The segment needs to be download first before playing. // However, some apps may want to wait before calling this // to because the download allocates memory for the // instruments. The more instruments currently downloaded, // the more memory is in use by the synthesizer. if( FAILED( hr = (*ppSegment)->Download() ) ) return DXTRACE_ERR_MSGBOX( TEXT("Download"), hr ); } return S_OK; } //----------------------------------------------------------------------------- // Name: CMusicManager::Create3DSegmentFromFile() // Desc: //----------------------------------------------------------------------------- HRESULT CMusicManager::Create3DSegmentFromFile( C3DMusicSegment** pp3DMusicSegment, LPCTSTR strFileName, BOOL bDownloadNow, BOOL bIsMidiFile, IDirectMusicAudioPath8* p3DAudioPath ) { HRESULT hr; IDirectMusicSegment8* pSegment = NULL; // DMusic only takes wide strings WCHAR wstrFileName[MAX_PATH]; DXUtil_ConvertGenericStringToWideCch( wstrFileName, strFileName, sizeof(wstrFileName)/sizeof(TCHAR) ); if ( FAILED( hr = m_pLoader->LoadObjectFromFile( CLSID_DirectMusicSegment, IID_IDirectMusicSegment8, wstrFileName, (LPVOID*) &pSegment ) ) ) { if( hr == DMUS_E_LOADER_FAILEDOPEN ) return hr; return DXTRACE_ERR( TEXT("LoadObjectFromFile"), hr ); } *pp3DMusicSegment = new C3DMusicSegment( m_pPerformance, m_pLoader, pSegment, p3DAudioPath ); if (!*pp3DMusicSegment) return E_OUTOFMEMORY; if( FAILED( hr = (*pp3DMusicSegment)->Init() ) ) return DXTRACE_ERR( TEXT("SetParam"), hr ); if( bIsMidiFile ) { if( FAILED( hr = pSegment->SetParam( GUID_StandardMIDIFile, 0xFFFFFFFF, 0, 0, NULL ) ) ) return DXTRACE_ERR( TEXT("SetParam"), hr ); } if( bDownloadNow ) { if( FAILED( hr = (*pp3DMusicSegment)->Download() ) ) return DXTRACE_ERR( TEXT("Download"), hr ); } return S_OK; } //----------------------------------------------------------------------------- // Name: CMusicManager::CreateScriptFromFile() // Desc: //----------------------------------------------------------------------------- HRESULT CMusicManager::CreateScriptFromFile( CMusicScript** ppScript, LPCTSTR strFileName ) { HRESULT hr; IDirectMusicScript* pScript = NULL; // DMusic only takes wide strings WCHAR wstrFileName[MAX_PATH]; DXUtil_ConvertGenericStringToWideCch( wstrFileName, strFileName, sizeof(wstrFileName)/sizeof(TCHAR) ); if ( FAILED( hr = m_pLoader->LoadObjectFromFile( CLSID_DirectMusicScript, IID_IDirectMusicScript8, wstrFileName, (LPVOID*) &pScript ) ) ) return DXTRACE_ERR( TEXT("LoadObjectFromFile"), hr ); if ( FAILED( hr = pScript->Init( m_pPerformance, NULL ) ) ) return DXTRACE_ERR_MSGBOX( TEXT("Init"), hr ); *ppScript = new CMusicScript( m_pPerformance, m_pLoader, pScript ); if (!*ppScript) return E_OUTOFMEMORY; return hr; } //----------------------------------------------------------------------------- // Name: CMusicManager::CreateChordMapFromFile() // Desc: //----------------------------------------------------------------------------- HRESULT CMusicManager::CreateChordMapFromFile( IDirectMusicChordMap8** ppChordMap, LPCTSTR strFileName ) { // DMusic only takes wide strings WCHAR wstrFileName[MAX_PATH]; DXUtil_ConvertGenericStringToWideCch( wstrFileName, strFileName, sizeof(wstrFileName)/sizeof(TCHAR) ); return m_pLoader->LoadObjectFromFile( CLSID_DirectMusicChordMap, IID_IDirectMusicChordMap8, wstrFileName, (LPVOID*) ppChordMap ); } //----------------------------------------------------------------------------- // Name: CMusicManager::CreateChordMapFromFile() // Desc: //----------------------------------------------------------------------------- HRESULT CMusicManager::CreateStyleFromFile( IDirectMusicStyle8** ppStyle, LPCTSTR strFileName ) { // DMusic only takes wide strings WCHAR wstrFileName[MAX_PATH]; DXUtil_ConvertGenericStringToWideCch( wstrFileName, strFileName, sizeof(wstrFileName)/sizeof(TCHAR) ); return m_pLoader->LoadObjectFromFile( CLSID_DirectMusicStyle, IID_IDirectMusicStyle8, wstrFileName, (LPVOID*) ppStyle ); } //----------------------------------------------------------------------------- // Name: CMusicManager::GetMotifFromStyle() // Desc: //----------------------------------------------------------------------------- HRESULT CMusicManager::GetMotifFromStyle( IDirectMusicSegment8** ppMotif8, LPCTSTR strStyle, LPCTSTR strMotif ) { UNREFERENCED_PARAMETER( strMotif ); HRESULT hr; IDirectMusicStyle8* pStyle = NULL; IDirectMusicSegment* pMotif = NULL; if( FAILED( hr = CreateStyleFromFile( &pStyle, strStyle ) ) ) return DXTRACE_ERR_MSGBOX( TEXT("CreateStyleFromFile"), hr ); if( pStyle ) { // DMusic only takes wide strings WCHAR wstrMotif[MAX_PATH]; DXUtil_ConvertGenericStringToWideCch( wstrMotif, strStyle, sizeof(wstrMotif)/sizeof(TCHAR) ); hr = pStyle->GetMotif( wstrMotif, &pMotif ); SAFE_RELEASE( pStyle ); if( FAILED( hr ) ) return DXTRACE_ERR_MSGBOX( TEXT("GetMotif"), hr ); pMotif->QueryInterface( IID_IDirectMusicSegment8, (LPVOID*) ppMotif8 ); } return S_OK; } //----------------------------------------------------------------------------- // Name: Set3DParameters // Desc: //----------------------------------------------------------------------------- VOID CMusicManager::Set3DParameters( FLOAT fDistanceFactor, FLOAT fDopplerFactor, FLOAT fRolloffFactor ) { m_dsListenerParams.flDistanceFactor = fDistanceFactor; m_dsListenerParams.flDopplerFactor = fDopplerFactor; m_dsListenerParams.flRolloffFactor = fRolloffFactor; if( m_pDSListener ) m_pDSListener->SetAllParameters( &m_dsListenerParams, DS3D_IMMEDIATE ); } //----------------------------------------------------------------------------- // Name: CMusicSegment::CMusicSegment() // Desc: Constructs the class //----------------------------------------------------------------------------- CMusicSegment::CMusicSegment( IDirectMusicPerformance8* pPerformance, IDirectMusicLoader8* pLoader, IDirectMusicSegment8* pSegment ) { m_pPerformance = pPerformance; m_pLoader = pLoader; m_pSegment = pSegment; m_pEmbeddedAudioPath = NULL; m_bDownloaded = FALSE; // Try to pull out an audio path from the segment itself if there is one. // This embedded audio path will be used instead of the default // audio path if the app doesn't wish to use an overriding audio path. IUnknown* pConfig = NULL; if( SUCCEEDED( m_pSegment->GetAudioPathConfig( &pConfig ) ) ) { m_pPerformance->CreateAudioPath( pConfig, TRUE, &m_pEmbeddedAudioPath ); SAFE_RELEASE( pConfig ); } } //----------------------------------------------------------------------------- // Name: CMusicSegment::~CMusicSegment() // Desc: Destroys the class //----------------------------------------------------------------------------- CMusicSegment::~CMusicSegment() { if( m_pSegment ) { // Tell the loader that this object should now be released if( m_pLoader ) m_pLoader->ReleaseObjectByUnknown( m_pSegment ); if( m_bDownloaded ) { if( m_pEmbeddedAudioPath ) m_pSegment->Unload( m_pEmbeddedAudioPath ); else m_pSegment->Unload( m_pPerformance ); } SAFE_RELEASE( m_pEmbeddedAudioPath ); SAFE_RELEASE( m_pSegment ); } m_pPerformance = NULL; } //----------------------------------------------------------------------------- // Name: CMusicSegment::Play() // Desc: Plays the sound using voice management flags. Pass in DSBPLAY_LOOPING // in the dwFlags to loop the sound //----------------------------------------------------------------------------- HRESULT CMusicSegment::Play( DWORD dwFlags, IDirectMusicAudioPath8* pAudioPath ) { if( m_pSegment == NULL || m_pPerformance == NULL ) return CO_E_NOTINITIALIZED; if( !m_bDownloaded ) return E_FAIL; // If an audio path was passed in then use it, otherwise // use the embedded audio path if there was one. if( pAudioPath == NULL && m_pEmbeddedAudioPath != NULL ) pAudioPath = m_pEmbeddedAudioPath; // If pAudioPath is NULL then this plays on the default audio path. return m_pPerformance->PlaySegmentEx( m_pSegment, 0, NULL, dwFlags, 0, 0, NULL, pAudioPath ); } //----------------------------------------------------------------------------- // Name: CMusicSegment::Download() // Desc: //----------------------------------------------------------------------------- HRESULT CMusicSegment::Download( IDirectMusicAudioPath8* pAudioPath ) { HRESULT hr; if( m_pSegment == NULL ) return CO_E_NOTINITIALIZED; // If no audio path was passed in, then download // to the embedded audio path if it exists // else download to the performance if( pAudioPath == NULL ) { if( m_pEmbeddedAudioPath ) hr = m_pSegment->Download( m_pEmbeddedAudioPath ); else hr = m_pSegment->Download( m_pPerformance ); } else { hr = m_pSegment->Download( pAudioPath ); } if ( SUCCEEDED( hr ) ) m_bDownloaded = TRUE; return hr; } //----------------------------------------------------------------------------- // Name: CMusicSegment::Unload() // Desc: //----------------------------------------------------------------------------- HRESULT CMusicSegment::Unload( IDirectMusicAudioPath8* pAudioPath ) { HRESULT hr; if( m_pSegment == NULL ) return CO_E_NOTINITIALIZED; // If no audio path was passed in, then unload // from the embedded audio path if it exists // else unload from the performance if( pAudioPath == NULL ) { if( m_pEmbeddedAudioPath ) hr = m_pSegment->Unload( m_pEmbeddedAudioPath ); else hr = m_pSegment->Unload( m_pPerformance ); } else { hr = m_pSegment->Unload( pAudioPath ); } if ( SUCCEEDED( hr ) ) m_bDownloaded = FALSE; return hr; } //----------------------------------------------------------------------------- // Name: CMusicSegment::IsPlaying() // Desc: //----------------------------------------------------------------------------- BOOL CMusicSegment::IsPlaying() { if( m_pSegment == NULL || m_pPerformance == NULL ) return FALSE; return ( m_pPerformance->IsPlaying( m_pSegment, NULL ) == S_OK ); } //----------------------------------------------------------------------------- // Name: CMusicSegment::Stop() // Desc: Stops the sound from playing //----------------------------------------------------------------------------- HRESULT CMusicSegment::Stop( DWORD dwFlags ) { if( m_pSegment == NULL || m_pPerformance == NULL ) return CO_E_NOTINITIALIZED; return m_pPerformance->Stop( m_pSegment, NULL, 0, dwFlags );; } //----------------------------------------------------------------------------- // Name: CMusicSegment::SetRepeats() // Desc: //----------------------------------------------------------------------------- HRESULT CMusicSegment::SetRepeats( DWORD dwRepeats ) { if( m_pSegment == NULL ) return CO_E_NOTINITIALIZED; return m_pSegment->SetRepeats( dwRepeats ); } //----------------------------------------------------------------------------- // Name: CMusicSegment::GetStyle() // Desc: //----------------------------------------------------------------------------- HRESULT CMusicSegment::GetStyle( IDirectMusicStyle8** ppStyle, DWORD dwStyleIndex ) { // Get the Style from the Segment by calling the Segment's GetData() with // the data type GUID_StyleTrackStyle. 0xffffffff indicates to look at // tracks in all TrackGroups in the segment. The first 0 indicates to // retrieve the Style from the first Track in the indicated TrackGroup. // The second 0 indicates to retrieve the Style from the beginning of the // segment, i.e. time 0 in Segment time. If this Segment was loaded from a // section file, there is only one Style and it is at time 0. return m_pSegment->GetParam( GUID_IDirectMusicStyle, 0xffffffff, dwStyleIndex, 0, NULL, (VOID*)ppStyle ); } //----------------------------------------------------------------------------- // Name: C3DMusicSegment::C3DMusicSegment() // Desc: Constructs the class //----------------------------------------------------------------------------- C3DMusicSegment::C3DMusicSegment( IDirectMusicPerformance8* pPerformance, IDirectMusicLoader8* pLoader, IDirectMusicSegment8* pSegment, IDirectMusicAudioPath8* pAudioPath ) : CMusicSegment( pPerformance, pLoader, pSegment ) { m_p3DAudioPath = pAudioPath; m_pDS3DBuffer = NULL; m_bDeferSettings = FALSE; m_bCleanupAudioPath = FALSE; } //----------------------------------------------------------------------------- // Name: C3DMusicSegment::~C3DMusicSegment() // Desc: Destroys the class //----------------------------------------------------------------------------- C3DMusicSegment::~C3DMusicSegment() { SAFE_RELEASE( m_pDS3DBuffer ); if( m_bCleanupAudioPath ) SAFE_RELEASE( m_p3DAudioPath ); } //----------------------------------------------------------------------------- // Name: Init() // Desc: //----------------------------------------------------------------------------- HRESULT C3DMusicSegment::Init() { HRESULT hr; if( NULL == m_p3DAudioPath ) { // Create a 3D audiopath with a 3d buffer. // We can then play all segments into this buffer and directly control its // 3D parameters. if( FAILED( hr = m_pPerformance->CreateStandardAudioPath( DMUS_APATH_DYNAMIC_3D, 64, TRUE, &m_p3DAudioPath ) ) ) return DXTRACE_ERR( TEXT("CreateStandardAudioPath"), hr ); m_bCleanupAudioPath = TRUE; } // Get the 3D buffer in the audio path. if( FAILED( hr = m_p3DAudioPath->GetObjectInPath( 0, DMUS_PATH_BUFFER, 0, GUID_NULL, 0, IID_IDirectSound3DBuffer, (LPVOID*) &m_pDS3DBuffer ) ) ) return DXTRACE_ERR( TEXT("GetObjectInPath"), hr ); // Get the 3D buffer parameters m_dsBufferParams.dwSize = sizeof(DS3DBUFFER); m_pDS3DBuffer->GetAllParameters( &m_dsBufferParams ); // Set new 3D buffer parameters m_dsBufferParams.dwMode = DS3DMODE_HEADRELATIVE; m_pDS3DBuffer->SetAllParameters( &m_dsBufferParams, DS3D_IMMEDIATE ); return S_OK; } //----------------------------------------------------------------------------- // Name: Play // Desc: //----------------------------------------------------------------------------- HRESULT C3DMusicSegment::Play( DWORD dwFlags, IDirectMusicAudioPath8* pAudioPath ) { if( pAudioPath ) return CMusicSegment::Play( dwFlags, pAudioPath ); else return CMusicSegment::Play( dwFlags, m_p3DAudioPath ); } //----------------------------------------------------------------------------- // Name: Set3DParameters // Desc: //----------------------------------------------------------------------------- VOID C3DMusicSegment::Set3DParameters( FLOAT fMinDistance, FLOAT fMaxDistance ) { // Every change to 3-D sound buffer and listener settings causes // DirectSound to remix, at the expense of CPU cycles. // To minimize the performance impact of changing 3-D settings, // use the DS3D_DEFERRED flag in the dwApply parameter of any of // the IDirectSound3DListener or IDirectSound3DBuffer methods that // change 3-D settings. Then call the IDirectSound3DListener::CommitDeferredSettings // method to execute all of the deferred commands at once. DWORD dwApplyFlag = ( m_bDeferSettings ) ? DS3D_DEFERRED : DS3D_IMMEDIATE; m_dsBufferParams.flMinDistance = fMinDistance; m_dsBufferParams.flMaxDistance = fMaxDistance; if( m_pDS3DBuffer ) m_pDS3DBuffer->SetAllParameters( &m_dsBufferParams, dwApplyFlag ); } //----------------------------------------------------------------------------- // Name: SetObjectProperties // Desc: //----------------------------------------------------------------------------- VOID C3DMusicSegment::SetObjectProperties( D3DVECTOR* pvPosition, D3DVECTOR* pvVelocity ) { DWORD dwApplyFlag = ( m_bDeferSettings ) ? DS3D_DEFERRED : DS3D_IMMEDIATE; // Every change to 3-D sound buffer and listener settings causes // DirectSound to remix, at the expense of CPU cycles. // To minimize the performance impact of changing 3-D settings, // use the DS3D_DEFERRED flag in the dwApply parameter of any of // the IDirectSound3DListener or IDirectSound3DBuffer methods that // change 3-D settings. Then call the IDirectSound3DListener::CommitDeferredSettings // method to execute all of the deferred commands at once. memcpy( &m_dsBufferParams.vPosition, pvPosition, sizeof(D3DVECTOR) ); memcpy( &m_dsBufferParams.vVelocity, pvVelocity, sizeof(D3DVECTOR) ); if( m_pDS3DBuffer ) { m_pDS3DBuffer->SetPosition( m_dsBufferParams.vPosition.x, m_dsBufferParams.vPosition.y, m_dsBufferParams.vPosition.z, dwApplyFlag ); m_pDS3DBuffer->SetVelocity( m_dsBufferParams.vVelocity.x, m_dsBufferParams.vVelocity.y, m_dsBufferParams.vVelocity.z, dwApplyFlag ); } } //----------------------------------------------------------------------------- // Name: CMusicScript::CMusicScript() // Desc: Constructs the class //----------------------------------------------------------------------------- CMusicScript::CMusicScript( IDirectMusicPerformance8* pPerformance, IDirectMusicLoader8* pLoader, IDirectMusicScript8* pScript ) { m_pPerformance = pPerformance; m_pLoader = pLoader; m_pScript = pScript; } //----------------------------------------------------------------------------- // Name: CMusicScript::~CMusicScript() // Desc: Destroys the class //----------------------------------------------------------------------------- CMusicScript::~CMusicScript() { if( m_pLoader ) { // Tell the loader that this object should now be released m_pLoader->ReleaseObjectByUnknown( m_pScript ); m_pLoader = NULL; } SAFE_RELEASE( m_pScript ); m_pPerformance = NULL; } //----------------------------------------------------------------------------- // Name: CMusicScript::Play() // Desc: Calls a routine in the script //----------------------------------------------------------------------------- HRESULT CMusicScript::CallRoutine( LPCTSTR strRoutine ) { // DMusic only takes wide strings WCHAR wstrRoutine[MAX_PATH]; DXUtil_ConvertGenericStringToWideCch( wstrRoutine, strRoutine, sizeof(wstrRoutine)/sizeof(TCHAR) ); return m_pScript->CallRoutine( wstrRoutine, NULL ); } //----------------------------------------------------------------------------- // Name: CMusicScript::SetVariableNumber() // Desc: Sets the value of a variable in the script //----------------------------------------------------------------------------- HRESULT CMusicScript::SetVariableNumber( LPCTSTR strVariable, LONG lValue ) { // DMusic only takes wide strings WCHAR wstrVariable[MAX_PATH]; DXUtil_ConvertGenericStringToWideCch( wstrVariable, strVariable, sizeof(wstrVariable)/sizeof(TCHAR) ); return m_pScript->SetVariableNumber( wstrVariable, lValue, NULL ); } //----------------------------------------------------------------------------- // Name: CMusicScript::GetVariableNumber() // Desc: Gets the value of a variable in the script //----------------------------------------------------------------------------- HRESULT CMusicScript::GetVariableNumber( LPCTSTR strVariable, LONG* plValue ) { // DMusic only takes wide strings WCHAR wstrVariable[MAX_PATH]; DXUtil_ConvertGenericStringToWideCch( wstrVariable, strVariable, sizeof(wstrVariable)/sizeof(TCHAR) ); return m_pScript->GetVariableNumber( wstrVariable, plValue, NULL ); } //----------------------------------------------------------------------------- // Name: CMusicScript::SetVariableObject() // Desc: Sets an object in the script //----------------------------------------------------------------------------- HRESULT CMusicScript::SetVariableObject( LPCTSTR strVariable, IUnknown *punkValue ) { // DMusic only takes wide strings WCHAR wstrVariable[MAX_PATH]; DXUtil_ConvertGenericStringToWideCch( wstrVariable, strVariable, sizeof(wstrVariable)/sizeof(TCHAR) ); return m_pScript->SetVariableObject( wstrVariable, punkValue, NULL ); } //----------------------------------------------------------------------------- // Name: CMusicScript::GetVariableObject() // Desc: Gets an object from the script //----------------------------------------------------------------------------- HRESULT CMusicScript::GetVariableObject( LPCTSTR strVariable, REFIID riid, LPVOID FAR *ppv ) { // DMusic only takes wide strings WCHAR wstrVariable[MAX_PATH]; DXUtil_ConvertGenericStringToWideCch( wstrVariable, strVariable, sizeof(wstrVariable)/sizeof(TCHAR) ); return m_pScript->GetVariableObject( wstrVariable, riid, ppv, NULL ); }