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windows-nt/Source/XPSP1/NT/multimedia/directx/dmusic/dmstyle/styletrk.cpp

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2020-09-26 03:20:57 -05:00
//+-------------------------------------------------------------------------
//
// Microsoft Windows
//
// Copyright (c) 1998-1999 Microsoft Corporation
//
// File: styletrk.cpp
//
//--------------------------------------------------------------------------
// READ THIS!!!!!!!!!!!!!!!!!!!!!!!!!!!
//
// 4530: C++ exception handler used, but unwind semantics are not enabled. Specify -GX
//
// We disable this because we use exceptions and do *not* specify -GX (USE_NATIVE_EH in
// sources).
//
// The one place we use exceptions is around construction of objects that call
// InitializeCriticalSection. We guarantee that it is safe to use in this case with
// the restriction given by not using -GX (automatic objects in the call chain between
// throw and handler are not destructed). Turning on -GX buys us nothing but +10% to code
// size because of the unwind code.
//
// Any other use of exceptions must follow these restrictions or -GX must be turned on.
//
// READ THIS!!!!!!!!!!!!!!!!!!!!!!!!!!!
//
#pragma warning(disable:4530)
// StyleTrack.cpp : Implementation of CStyleTrack
#include "StyleTrk.h"
#include "dmusicc.h"
#include <stdlib.h> // for random number generator
#include <time.h> // to seed random number generator
#include "debug.h"
#include "debug.h"
#include "..\shared\Validate.h"
/////////////////////////////////////////////////////////////////////////////
// StyleTrackState
StyleTrackState::StyleTrackState() :
m_mtSectionOffset(0), m_mtSectionOffsetTemp(0), m_mtOverlap(0),
m_mtNextCommandTemp(0),
m_mtNextCommandTime(0),
m_mtNextStyleTime(0)
{
ZeroMemory(&m_CommandData , sizeof(m_CommandData));
}
StyleTrackState::~StyleTrackState()
{
m_PlayedPatterns.CleanUp();
}
HRESULT StyleTrackState::Play(
MUSIC_TIME mtStart,
MUSIC_TIME mtEnd,
MUSIC_TIME mtOffset,
REFERENCE_TIME rtOffset,
IDirectMusicPerformance* pPerformance,
DWORD dwFlags,
BOOL fClockTime
)
{
m_mtPerformanceOffset = mtOffset;
BOOL fStart = (dwFlags & DMUS_TRACKF_START) ? TRUE : FALSE;
BOOL fSeek = (dwFlags & DMUS_TRACKF_SEEK) ? TRUE : FALSE;
BOOL fLoop = (dwFlags & DMUS_TRACKF_LOOP) ? TRUE : FALSE;
BOOL fFlush = (dwFlags & DMUS_TRACKF_FLUSH) ? TRUE : FALSE;
BOOL fDirty = (dwFlags & DMUS_TRACKF_DIRTY) ? TRUE : FALSE;
HRESULT hr = S_OK;
TraceI(4, "Play [%d:%d @ %d]\n", mtStart, mtEnd, mtOffset);
if (m_mtNextCommandTime == 0)
{
MUSIC_TIME mtBarLength = m_pStyle ? PatternTimeSig().ClocksPerMeasure() : 0;
DMUS_COMMAND_PARAM_2 TempCommand;
HRESULT hrCommand = E_FAIL;
if (fDirty || fFlush)
{
char chGroove;
HRESULT hrGroove = pPerformance->GetGlobalParam((GUID)GUID_PerfMasterGrooveLevel, &chGroove, 1);
if (!SUCCEEDED(hrGroove)) chGroove = 0;
BYTE bActualCommand = m_CommandData.bCommand;
if (m_pStyle)
{
hrCommand = m_pStyle->GetCommand(mtStart, mtOffset, pPerformance, NULL, m_dwGroupID, &TempCommand, bActualCommand);
}
if (!fDirty && hrCommand == S_OK)
{
// Avoid getting a pattern that's the same as the current one.
if (TempCommand.bGrooveLevel + chGroove == m_CommandData.bGrooveLevel &&
bActualCommand == m_CommandData.bCommand)
{
hrCommand = E_FAIL;
}
}
}
MUSIC_TIME mtFirstCommand = 0;
if (fStart || fLoop)
{
m_mtNextCommandTime = 0;
}
else
{
mtFirstCommand = mtStart;
m_mtNextCommandTime = (mtBarLength) ? ((mtStart / mtBarLength) * mtBarLength) : 0;
}
if (fStart || fLoop || mtStart == 0 || hrCommand == S_OK || mtStart >= m_mtNextCommandTemp)
{
hr = GetNextPattern(dwFlags, mtFirstCommand, mtOffset, pPerformance, fLoop);
if ( m_pPattern && mtStart > 0 && (fSeek || fDirty) )
{
while (SUCCEEDED(hr) && mtStart >= m_mtNextCommandTime)
{
hr = GetNextPattern(dwFlags, m_mtNextCommandTime, mtOffset, pPerformance, fLoop);
}
}
fDirty = fDirty || fLoop; // make sure we get new variations if we skipped them above
}
else
{
m_mtNextCommandTime = m_mtNextCommandTemp;
m_mtNextCommandTemp = 0;
m_mtSectionOffset = m_mtSectionOffsetTemp;
m_mtSectionOffsetTemp = 0;
}
}
if (SUCCEEDED(hr))
{
if (fDirty) // We need to make sure we get chords on beat boundaries
{
GetNextChord(mtStart, mtOffset, pPerformance, fStart);
}
// for each part, play the events between start and end in the corresponding list
// get new chords and commands when necessary
MUSIC_TIME mtLast = m_mtNextCommandTime;
bool fReLoop = false;
MUSIC_TIME mtNotify = mtStart ? PatternTimeSig().CeilingBeat(mtStart) : 0;
if( m_fStateActive && m_pPatternTrack->m_fNotifyMeasureBeat &&
( mtNotify < mtEnd ) )
{
mtNotify = NotifyMeasureBeat( mtNotify, mtEnd, mtOffset, pPerformance, dwFlags );
}
DWORD dwPartFlags = PLAYPARTSF_FIRST_CALL;
if (fStart || fLoop || fSeek) dwPartFlags |= PLAYPARTSF_START;
if (fClockTime) dwPartFlags |= PLAYPARTSF_CLOCKTIME;
if ( fLoop || (mtStart > 0 && (fStart || fSeek || fDirty)) ) dwPartFlags |= PLAYPARTSF_FLUSH;
MUSIC_TIME mtPartLast = min(mtEnd, mtLast);
PlayParts(mtStart, mtPartLast, mtOffset, rtOffset, m_mtSectionOffset, pPerformance, dwPartFlags, dwFlags, fReLoop);
// If we need to reloop any parts, do it
if (fReLoop)
{
dwPartFlags = PLAYPARTSF_RELOOP;
if (fClockTime) dwPartFlags |= PLAYPARTSF_CLOCKTIME;
PlayParts(mtStart, mtPartLast, mtOffset, rtOffset, m_mtSectionOffset, pPerformance, dwPartFlags, dwFlags, fReLoop);
}
// If we need to get a new command, we do it after all the events in all the parts
// have run. And then we need to run all events from command start to mtEnd.
if (mtStart <= m_mtNextCommandTime && m_mtNextCommandTime < mtEnd)
{
hr = GetNextPattern(dwFlags & ~DMUS_TRACKF_START, m_mtNextCommandTime, mtOffset, pPerformance);
if (SUCCEEDED(hr))
{
dwPartFlags = 0;
if (fClockTime) dwPartFlags |= PLAYPARTSF_CLOCKTIME;
PlayParts(mtStart, mtEnd, mtOffset, rtOffset, m_mtSectionOffset, pPerformance, dwPartFlags, dwFlags, fReLoop);
}
}
if( SUCCEEDED(hr) &&
m_fStateActive && m_pPatternTrack->m_fNotifyMeasureBeat &&
( mtNotify < mtEnd ) )
{
NotifyMeasureBeat( mtNotify, mtEnd, mtOffset, pPerformance, dwFlags );
}
}
m_hrPlayCode = hr;
return hr;
}
HRESULT StyleTrackState::GetNextPattern(DWORD dwFlags, MUSIC_TIME mtNow, MUSIC_TIME mtOffset, IDirectMusicPerformance* pPerformance, BOOL fSkipVariations)
{
bool fStart = (dwFlags & DMUS_TRACKF_START) ? TRUE : FALSE;
bool fSeek = (dwFlags & DMUS_TRACKF_SEEK) ? TRUE : FALSE;
bool fLoop = (dwFlags & DMUS_TRACKF_LOOP) ? TRUE : FALSE;
bool fFlush = (dwFlags & DMUS_TRACKF_FLUSH) ? TRUE : FALSE;
bool fDirty = (dwFlags & DMUS_TRACKF_DIRTY) ? TRUE : FALSE;
bool fNewMode = fStart || fDirty;
// It doesn't seem to make sense to use anything other than the style's time signature
// when looking for a new pattern.
//TraceI(1, "New pattern at %d\n", mtNow);
DMStyleStruct* pOldStyle = m_pStyle;
if (m_mtNextStyleTime && mtNow >= m_mtNextStyleTime)
{
//TraceI(0, "New Style (%d) [%d]\n", m_mtNextStyleTime, mtNow);
DMStyleStruct* pStyle = FindStyle(mtNow, m_mtNextStyleTime);
if (!pStyle)
{
return E_POINTER;
}
else
{
m_pStyle = pStyle;
fNewMode = true;
}
if (m_fStateActive) // if timesig events are enabled...
{
SendTimeSigMessage(mtNow, mtOffset, m_mtNextStyleTime, pPerformance);
}
}
MUSIC_TIME mtOldMeasureTime = m_pPattern ? m_pPattern->TimeSignature(pOldStyle).ClocksPerMeasure() : m_pStyle->m_TimeSignature.ClocksPerMeasure();
CDirectMusicPattern* pOldPattern = m_pPattern;
CDirectMusicPattern* pTargetPattern = NULL;
MUSIC_TIME mtMeasureTime = 0, mtNextCommand = 0;
HRESULT hr = m_pStyle->GetPattern(fNewMode, mtNow, mtOffset, this, pPerformance, NULL, pTargetPattern, mtMeasureTime, mtNextCommand);
if (SUCCEEDED(hr))
{
MUSIC_TIME mtSectionOffset = (!fDirty || m_mtSectionOffset || fLoop) ? m_mtSectionOffset : m_mtSectionOffsetTemp;
MUSIC_TIME mtOldPatternEnd = (!fStart && !fLoop && pOldPattern) ? mtSectionOffset + (pOldPattern->m_wNumMeasures * mtOldMeasureTime) : 0;
MUSIC_TIME mtNewPatternLength = pTargetPattern->m_wNumMeasures * mtMeasureTime;
MUSIC_TIME mtOverlap = 0;
if (m_mtOverlap && fDirty) // assumes 1 controlling segment w/command track at a time
{
if (m_pStyle->UsingDX8())
{
mtOverlap = mtMeasureTime - (m_mtOverlap % mtMeasureTime);
}
m_mtOverlap = 0;
//TraceI(0, "[1]Overlap: %d\n", mtOverlap);
}
else if (mtNow < mtOldPatternEnd &&
m_pStyle->UsingDX8() )
{
mtOverlap = mtOldPatternEnd - mtNow;
if (fDirty)
{
m_mtOverlap = mtOverlap;
mtOverlap = 0;
}
else
{
mtOverlap = (mtMeasureTime - (mtOverlap % mtMeasureTime)) % mtMeasureTime;
}
//TraceI(0, "[2]Overlap: %d\n", fDirty ? m_mtOverlap : mtOverlap);
}
// Whenever I get a new pattern, I should get a new chord
GetNextChord(mtNow, mtOffset, pPerformance, fStart, fSkipVariations);
/*
if (fDirty)
{
m_mtSectionOffset = mtNow - mtOverlap;
}
else
{
m_mtSectionOffset = m_mtNextCommandTime - mtOverlap; // keep the section offset on a measure boundary
}
*/
m_mtSectionOffset = m_mtNextCommandTime;
m_mtNextCommandTime = m_mtSectionOffset + mtNewPatternLength;
// Note: at this point mtNextCommand == m_mtNextStyleTime - mtNow,
// if that difference is smaller than the original value for mtNextCommand.
if (mtNextCommand && m_mtNextCommandTime > mtNow + mtNextCommand)
{
m_mtNextCommandTime = mtNow + mtNextCommand;
}
TraceI(3, "Next Command Time: %d Measures: %d Measure time: %d\n",
// TraceI(0, "Next Command Time: %d Measures: %d Measure time: %d\n",
m_mtNextCommandTime, m_pPattern->m_wNumMeasures, mtMeasureTime);
return S_OK;
}
else return E_POINTER;
}
MUSIC_TIME StyleTrackState::PartOffset(int nPartIndex)
{
return m_pmtPartOffset[nPartIndex] + m_mtSectionOffset;
}
/////////////////////////////////////////////////////////////////////////////
// StyleTrackInfo
StyleTrackInfo::StyleTrackInfo()
{
m_dwPatternTag = DMUS_PATTERN_STYLE;
}
StyleTrackInfo::~StyleTrackInfo()
{
}
HRESULT StyleTrackInfo::Init(
/*[in]*/ IDirectMusicSegment* pSegment
)
{
HRESULT hr = S_OK;
return hr;
}
HRESULT StyleTrackInfo::InitPlay(
/*[in]*/ IDirectMusicTrack* pParentrack,
/*[in]*/ IDirectMusicSegmentState* pSegmentState,
/*[in]*/ IDirectMusicPerformance* pPerformance,
/*[out]*/ void** ppStateData,
/*[in]*/ DWORD dwTrackID,
/*[in]*/ DWORD dwFlags
)
{
IDirectMusicSegment* pSegment = NULL;
StyleTrackState* pStateData = new StyleTrackState;
if( NULL == pStateData )
{
return E_OUTOFMEMORY;
}
pStateData->m_dwValidate = m_dwValidate;
StatePair SP(pSegmentState, pStateData);
TListItem<StatePair>* pPair = new TListItem<StatePair>(SP);
if (!pPair)
{
delete pStateData;
return E_OUTOFMEMORY;
}
m_StateList.AddHead(pPair);
pStateData->m_pTrack = pParentrack;
pStateData->m_pPatternTrack = this;
pStateData->m_dwVirtualTrackID = dwTrackID;
pStateData->m_mtNextStyleTime = 0;
pStateData->m_pStyle = pStateData->FindStyle(0, pStateData->m_mtNextStyleTime);
if (!pStateData->m_pStyle)
{
delete pStateData;
return E_POINTER;
}
pStateData->m_pPattern = NULL;
pStateData->m_pSegState = pSegmentState; // weak reference, no addref.
pStateData->m_pPerformance = pPerformance; // weak reference, no addref.
pStateData->m_mtPerformanceOffset = 0;
pStateData->m_mtCurrentChordTime = 0;
pStateData->m_mtNextChordTime = 0;
pStateData->m_mtPatternStart = 0;
pStateData->m_mtSectionOffset = 0;
pStateData->m_mtSectionOffsetTemp = 0;
pStateData->m_mtOverlap = 0;
HRESULT hr = pStateData->ResetMappings();
if (FAILED(hr))
{
delete pStateData;
return hr;
}
if (m_fStateSetBySetParam)
{
pStateData->m_fStateActive = m_fActive;
}
else
{
pStateData->m_fStateActive = !(dwFlags & (DMUS_SEGF_CONTROL | DMUS_SEGF_SECONDARY));
}
if (m_lRandomNumberSeed)
{
pStateData->InitVariationSeeds(m_lRandomNumberSeed);
}
if( SUCCEEDED( pSegmentState->GetSegment(&pSegment)))
{
if (FAILED(pSegment->GetTrackGroup(pStateData->m_pTrack, &pStateData->m_dwGroupID)))
{
pStateData->m_dwGroupID = 0xffffffff;
}
pSegment->Release();
}
*ppStateData = pStateData;
return S_OK;
}
/////////////////////////////////////////////////////////////////////////////
// CStyleTrack
CStyleTrack::CStyleTrack() :
m_bRequiresSave(0), m_cRef(1), m_fCSInitialized(FALSE)
{
InterlockedIncrement(&g_cComponent);
::InitializeCriticalSection( &m_CriticalSection );
m_fCSInitialized = TRUE;
srand((unsigned int)time(NULL));
m_pTrackInfo = new StyleTrackInfo;
// assert (m_pTrackInfo);
}
CStyleTrack::CStyleTrack(const CStyleTrack& rTrack, MUSIC_TIME mtStart, MUSIC_TIME mtEnd) :
m_bRequiresSave(0), m_cRef(1), m_fCSInitialized(FALSE)
{
InterlockedIncrement(&g_cComponent);
::InitializeCriticalSection( &m_CriticalSection );
m_fCSInitialized = TRUE;
srand((unsigned int)time(NULL));
m_pTrackInfo = new StyleTrackInfo((StyleTrackInfo*)rTrack.m_pTrackInfo, mtStart, mtEnd);
}
CStyleTrack::~CStyleTrack()
{
if (m_pTrackInfo)
{
delete m_pTrackInfo;
}
if (m_fCSInitialized)
{
::DeleteCriticalSection( &m_CriticalSection );
}
InterlockedDecrement(&g_cComponent);
}
// CStyleTrack Methods
STDMETHODIMP CStyleTrack::QueryInterface(
const IID &iid,
void **ppv)
{
V_INAME(CStyleTrack::QueryInterface);
V_REFGUID(iid);
V_PTRPTR_WRITE(ppv);
if (iid == IID_IUnknown || iid == IID_IDirectMusicTrack || iid == IID_IDirectMusicTrack8)
{
*ppv = static_cast<IDirectMusicTrack*>(this);
}
else if (iid == IID_IPersistStream)
{
*ppv = static_cast<IPersistStream*>(this);
}
else if (iid == IID_IStyleTrack)
{
*ppv = static_cast<IStyleTrack*>(this);
}
else
{
*ppv = NULL;
return E_NOINTERFACE;
}
reinterpret_cast<IUnknown*>(this)->AddRef();
return S_OK;
}
STDMETHODIMP_(ULONG) CStyleTrack::AddRef()
{
return InterlockedIncrement(&m_cRef);
}
STDMETHODIMP_(ULONG) CStyleTrack::Release()
{
if (!InterlockedDecrement(&m_cRef))
{
delete this;
return 0;
}
return m_cRef;
}
//////////////////////////////////////////////////////////////////////
// IDirectMusicTrack::Init
HRESULT CStyleTrack::Init(
/* [in] */ IDirectMusicSegment __RPC_FAR *pSegment)
{
V_INAME(CStyleTrack::Init);
V_INTERFACE(pSegment);
HRESULT hr = S_OK;
if (m_pTrackInfo == NULL)
return DMUS_E_NOT_INIT;
EnterCriticalSection( &m_CriticalSection );
hr = m_pTrackInfo->MergePChannels();
if (SUCCEEDED(hr))
{
pSegment->SetPChannelsUsed(m_pTrackInfo->m_dwPChannels, m_pTrackInfo->m_pdwPChannels);
hr = m_pTrackInfo->Init(pSegment);
}
LeaveCriticalSection( &m_CriticalSection );
return hr;
}
HRESULT CStyleTrack::InitPlay(
/*[in]*/ IDirectMusicSegmentState* pSegmentState,
/*[in]*/ IDirectMusicPerformance* pPerformance,
/*[out]*/ void** ppStateData,
/*[in]*/ DWORD dwTrackID,
/*[in]*/ DWORD dwFlags
)
{
V_INAME(CStyleTrack::InitPlay);
V_PTRPTR_WRITE(ppStateData);
V_INTERFACE(pSegmentState);
V_INTERFACE(pPerformance);
HRESULT hr = S_OK;
EnterCriticalSection( &m_CriticalSection );
if (m_pTrackInfo == NULL)
{
LeaveCriticalSection( &m_CriticalSection );
return DMUS_E_NOT_INIT;
}
hr = m_pTrackInfo->InitPlay(this, pSegmentState, pPerformance, ppStateData, dwTrackID, dwFlags);
LeaveCriticalSection( &m_CriticalSection );
return hr;
}
HRESULT CStyleTrack::EndPlay(
/*[in]*/ void* pStateData
)
{
V_INAME(CStyleTrack::EndPlay);
V_BUFPTR_WRITE(pStateData, sizeof(StyleTrackState));
HRESULT hr = DMUS_E_NOT_INIT;
StyleTrackState* pSD = (StyleTrackState*)pStateData;
EnterCriticalSection( &m_CriticalSection );
// if (pSD->m_pPattern) pSD->m_pPattern->Release();
if (m_pTrackInfo) hr = m_pTrackInfo->EndPlay(pSD);
LeaveCriticalSection( &m_CriticalSection );
return hr;
}
HRESULT CStyleTrack::Play(
/*[in]*/ void* pStateData,
/*[in]*/ MUSIC_TIME mtStart,
/*[in]*/ MUSIC_TIME mtEnd,
/*[in]*/ MUSIC_TIME mtOffset,
DWORD dwFlags,
IDirectMusicPerformance* pPerf,
IDirectMusicSegmentState* pSegState,
DWORD dwVirtualID
)
{
V_INAME(CStyleTrack::Play);
V_BUFPTR_WRITE( pStateData, sizeof(StyleTrackState));
V_INTERFACE(pPerf);
V_INTERFACE(pSegState);
HRESULT hr = DMUS_E_NOT_INIT;
BOOL fSeek = (dwFlags & DMUS_TRACKF_SEEK) ? TRUE : FALSE;
BOOL fStart = (dwFlags & DMUS_TRACKF_START) ? TRUE : FALSE;
BOOL fControl = (dwFlags & DMUS_TRACKF_DIRTY) ? TRUE : FALSE;
EnterCriticalSection( &m_CriticalSection );
if (!m_pTrackInfo)
{
LeaveCriticalSection( &m_CriticalSection );
return hr;
}
StyleTrackState* pSD = (StyleTrackState *)pStateData;
if (pSD->m_hrPlayCode == E_OUTOFMEMORY)
{
LeaveCriticalSection( &m_CriticalSection );
return pSD->m_hrPlayCode;
}
if (pSD->m_dwValidate != m_pTrackInfo->m_dwValidate)
{
// new style added to track either via SetParam or Load. Resync state data.
pSD->m_pStyle = pSD->FindStyle(mtStart, pSD->m_mtNextStyleTime);
if (!pSD->m_pStyle)
{
hr = E_POINTER;
}
pSD->m_dwValidate = m_pTrackInfo->m_dwValidate;
}
if ((hr == DMUS_E_NOT_INIT) && pSD && pSD->m_pMappings)
{
if (fStart || fSeek || fControl)
{
pSD->m_mtSectionOffsetTemp = pSD->m_mtSectionOffset;
pSD->m_mtSectionOffset = 0;
pSD->m_mtNextCommandTemp = pSD->m_mtNextCommandTime;
pSD->m_mtNextCommandTime = 0;
pSD->m_pStyle = pSD->FindStyle(0, pSD->m_mtNextStyleTime);
if (!pSD->m_pStyle)
{
hr = E_POINTER;
}
else
{
if (pSD->m_fStateActive) // if timesig events are enabled...
{
pSD->SendTimeSigMessage(mtStart, mtOffset, pSD->m_mtNextStyleTime, pPerf);
}
pSD->m_mtCurrentChordTime = 0;
pSD->m_mtNextChordTime = 0;
pSD->m_mtLaterChordTime = 0;
// pSD->m_CurrentChord.bSubChordCount = 0;
pSD->m_mtPatternStart = 0;
for (DWORD dw = 0; dw < m_pTrackInfo->m_dwPChannels; dw++)
{
pSD->m_pMappings[dw].m_mtTime = 0;
pSD->m_pMappings[dw].m_dwPChannelMap = m_pTrackInfo->m_pdwPChannels[dw];
pSD->m_pMappings[dw].m_fMute = FALSE;
}
}
}
hr = ((StyleTrackState *)pStateData)->Play(mtStart, mtEnd, mtOffset, 0, pPerf, dwFlags, FALSE);
}
LeaveCriticalSection( &m_CriticalSection );
return hr;
}
HRESULT CStyleTrack::GetPriority(
/*[out]*/ DWORD* pPriority
)
{
return E_NOTIMPL;
}
HRESULT CStyleTrack::GetParam(
REFGUID rCommandGuid,
MUSIC_TIME mtTime,
MUSIC_TIME* pmtNext,
void* pData,
void* pStateData)
{
V_INAME(CStyleTrack::GetParam);
V_PTR_WRITE_OPT(pmtNext,MUSIC_TIME);
V_PTR_WRITE(pData,1);
V_PTR_WRITE_OPT(pStateData,1);
V_REFGUID(rCommandGuid);
HRESULT hr;
EnterCriticalSection( &m_CriticalSection );
bool fInCritSection = true;
if (rCommandGuid == GUID_IDirectMusicStyle)
{
if (m_pTrackInfo)
{
TListItem<StylePair>* pScan = m_pTrackInfo->m_pISList.GetHead();
if (pScan)
{
IDMStyle* pStyle = pScan->GetItemValue().m_pStyle;
for(pScan = pScan->GetNext(); pScan; pScan = pScan->GetNext())
{
StylePair& rScan = pScan->GetItemValue();
if (mtTime < rScan.m_mtTime && rScan.m_pStyle) break; // ignore if NULL
if (rScan.m_pStyle) pStyle = rScan.m_pStyle; // skip if NULL
}
IDirectMusicStyle* pDMStyle;
if (!pStyle)
{
hr = E_POINTER;
}
else
{
pStyle->QueryInterface(IID_IDirectMusicStyle, (void**)&pDMStyle);
// Note: QI with no Release has the effect of an AddRef
*(IDirectMusicStyle**)pData = pDMStyle;
if (pmtNext)
{
*pmtNext = (pScan != NULL) ? pScan->GetItemValue().m_mtTime - mtTime : 0;
}
hr = S_OK;
}
}
else hr = DMUS_E_NOT_FOUND;
}
else hr = DMUS_E_NOT_INIT;
}
else if (rCommandGuid == GUID_TimeSignature)
{
// find the style at the given time, and return its time sig.
if (m_pTrackInfo)
{
TListItem<StylePair>* pScan = m_pTrackInfo->m_pISList.GetHead();
if (pScan)
{
IDMStyle* pStyle = pScan->GetItemValue().m_pStyle;
MUSIC_TIME mtStyleTime = pScan->GetItemValue().m_mtTime;
for(pScan = pScan->GetNext(); pScan; pScan = pScan->GetNext())
{
StylePair& rScan = pScan->GetItemValue();
if (mtTime < rScan.m_mtTime) break;
pStyle = rScan.m_pStyle;
mtStyleTime = rScan.m_mtTime;
}
if (!pStyle)
{
hr = E_POINTER;
}
else
{
// Enter the style's CritSec
pStyle->CritSec(true);
// If I've got state data, use it to get the time signature of the pattern at mtTime
if (pStateData)
{
MUSIC_TIME mtMeasureTime = 0;
MUSIC_TIME mtNext = 0;
CDirectMusicPattern* pTargetPattern;
StyleTrackState* pStyleTrackState = (StyleTrackState*)pStateData;
IDirectMusicPerformance* pPerformance = pStyleTrackState->m_pPerformance;
MUSIC_TIME mtOffset = pStyleTrackState->m_mtPerformanceOffset;
DMStyleStruct* pStyleStruct = NULL;
hr = pStyle->GetStyleInfo((void**)&pStyleStruct);
if (SUCCEEDED(hr))
{
// I don't need the Track CritSec any more, and in fact there's an almost
// guaranteed deadlock if I keep it, so get rid of it
LeaveCriticalSection( &m_CriticalSection );
fInCritSection = false;
hr = pStyleStruct->GetPattern(true, mtTime, mtOffset, NULL,
pPerformance, NULL, pTargetPattern, mtMeasureTime, mtNext);
if (SUCCEEDED(hr))
{
DMUS_TIMESIGNATURE* pTimeSig = (DMUS_TIMESIGNATURE*)pData;
*pTimeSig = pTargetPattern->TimeSignature(pStyleStruct);
pTimeSig->mtTime = mtStyleTime - mtTime;
//TraceI(0, "New Time sig from pattern...\n");
if (pmtNext)
{
*pmtNext = mtNext;
}
}
}
}
else // Just get the style's time signature
{
IDirectMusicStyle* pDMStyle;
hr = pStyle->QueryInterface(IID_IDirectMusicStyle, (void**)&pDMStyle);
if (SUCCEEDED(hr))
{
hr = pDMStyle->GetTimeSignature((DMUS_TIMESIGNATURE*)pData);
if (SUCCEEDED(hr))
{
((DMUS_TIMESIGNATURE*)pData)->mtTime = mtStyleTime - mtTime;
if (pmtNext)
{
*pmtNext = (pScan != NULL) ? pScan->GetItemValue().m_mtTime : 0;
}
}
pDMStyle->Release();
}
}
// Leave the style's CritSec
pStyle->CritSec(false);
}
}
else hr = DMUS_E_NOT_FOUND;
}
else hr = DMUS_E_NOT_INIT;
}
else if (rCommandGuid == GUID_SegmentTimeSig)
{
SegmentTimeSig* pTimeSigParam = (SegmentTimeSig*)pData;
if (!pTimeSigParam->pSegment) hr = E_POINTER;
// find the style at the given time, and return the time sig currently in effect in the segment.
else if (m_pTrackInfo)
{
TListItem<StylePair>* pScan = m_pTrackInfo->m_pISList.GetHead();
if (pScan)
{
IDMStyle* pStyle = pScan->GetItemValue().m_pStyle;
MUSIC_TIME mtStyleTime = pScan->GetItemValue().m_mtTime;
for(pScan = pScan->GetNext(); pScan; pScan = pScan->GetNext())
{
StylePair& rScan = pScan->GetItemValue();
if (mtTime < rScan.m_mtTime) break;
pStyle = rScan.m_pStyle;
mtStyleTime = rScan.m_mtTime;
}
if (!pStyle)
{
hr = E_POINTER;
}
else
{
DMStyleStruct* pStyleStruct = NULL;
hr = pStyle->GetStyleInfo((void**)&pStyleStruct);
if (SUCCEEDED(hr))
{
CDirectMusicPattern* pPattern = NULL;
MUSIC_TIME mtMeasureTime = 0, mtNextCommand = 0;
hr = pStyleStruct->GetPattern(true, mtTime, 0, NULL, NULL, pTimeSigParam->pSegment,
pPattern, mtMeasureTime, mtNextCommand);
if (SUCCEEDED(hr))
{
pTimeSigParam->TimeSig = pPattern->m_timeSig;
pTimeSigParam->TimeSig.mtTime = mtStyleTime - mtTime;
if (pmtNext)
{
*pmtNext = (mtNextCommand) ? mtNextCommand - mtTime : 0;
}
}
}
}
}
else hr = DMUS_E_NOT_FOUND;
}
else hr = DMUS_E_NOT_INIT;
}
else
{
hr = DMUS_E_GET_UNSUPPORTED;
}
if (fInCritSection) LeaveCriticalSection( &m_CriticalSection );
return hr;
}
HRESULT CStyleTrack::SetParam(
REFGUID rCommandGuid,
MUSIC_TIME mtTime,
void __RPC_FAR *pData)
{
V_INAME(CStyleTrack::SetParam);
V_PTR_WRITE_OPT(pData,1);
V_REFGUID(rCommandGuid);
HRESULT hr = S_OK;
EnterCriticalSection( &m_CriticalSection );
if (!m_pTrackInfo)
{
hr = DMUS_E_NOT_INIT;
}
else if (rCommandGuid == GUID_IDirectMusicStyle)
{
if (!pData)
{
hr = E_POINTER;
}
else
{
IDirectMusicStyle* pStyle = (IDirectMusicStyle*)pData;
IDMStyle* pIS = NULL;
pStyle->QueryInterface(IID_IDMStyle, (void**)&pIS);
TListItem<StylePair>* pNew = new TListItem<StylePair>;
if (!pNew)
{
hr = E_OUTOFMEMORY;
}
else
{
pNew->GetItemValue().m_mtTime = mtTime;
pNew->GetItemValue().m_pStyle = pIS;
m_pTrackInfo->m_pISList.AddTail(pNew);
m_pTrackInfo->m_dwValidate++;
hr = m_pTrackInfo->MergePChannels();
}
}
}
else if( rCommandGuid == GUID_EnableTimeSig )
{
if( m_pTrackInfo->m_fStateSetBySetParam && m_pTrackInfo->m_fActive )
{
hr = DMUS_E_TYPE_DISABLED;
}
else
{
m_pTrackInfo->m_fStateSetBySetParam = TRUE;
m_pTrackInfo->m_fActive = TRUE;
hr = S_OK;
}
}
else if( rCommandGuid == GUID_DisableTimeSig )
{
if( m_pTrackInfo->m_fStateSetBySetParam && !m_pTrackInfo->m_fActive )
{
hr = DMUS_E_TYPE_DISABLED;
}
else
{
m_pTrackInfo->m_fStateSetBySetParam = TRUE;
m_pTrackInfo->m_fActive = FALSE;
hr = S_OK;
}
}
else if ( rCommandGuid == GUID_SeedVariations )
{
if (pData)
{
m_pTrackInfo->m_lRandomNumberSeed = *((long*) pData);
hr = S_OK;
}
else hr = E_POINTER;
}
else
{
hr = DMUS_E_SET_UNSUPPORTED;
}
LeaveCriticalSection( &m_CriticalSection );
return hr;
}
// IPersist methods
HRESULT CStyleTrack::GetClassID( LPCLSID pClassID )
{
V_INAME(CStyleTrack::GetClassID);
V_PTR_WRITE(pClassID, CLSID);
*pClassID = CLSID_DirectMusicStyleTrack;
return S_OK;
}
HRESULT CStyleTrack::IsParamSupported(
/*[in]*/ REFGUID rGuid
)
{
V_INAME(CStyleTrack::IsParamSupported);
V_REFGUID(rGuid);
if (!m_pTrackInfo)
{
return DMUS_E_NOT_INIT;
}
if (rGuid == GUID_IDirectMusicStyle ||
rGuid == GUID_SeedVariations ||
rGuid == GUID_SegmentTimeSig )
{
return S_OK;
}
else if (m_pTrackInfo->m_fStateSetBySetParam)
{
if( m_pTrackInfo->m_fActive )
{
if( rGuid == GUID_DisableTimeSig ) return S_OK;
if( rGuid == GUID_TimeSignature ) return S_OK;
if( rGuid == GUID_EnableTimeSig ) return DMUS_E_TYPE_DISABLED;
}
else
{
if( rGuid == GUID_EnableTimeSig ) return S_OK;
if( rGuid == GUID_DisableTimeSig ) return DMUS_E_TYPE_DISABLED;
if( rGuid == GUID_TimeSignature ) return DMUS_E_TYPE_DISABLED;
}
}
else
{
if( ( rGuid == GUID_DisableTimeSig ) ||
( rGuid == GUID_TimeSignature ) ||
( rGuid == GUID_EnableTimeSig )) return S_OK;
}
return DMUS_E_TYPE_UNSUPPORTED;
}
// IPersistStream methods
HRESULT CStyleTrack::IsDirty()
{
return m_bRequiresSave ? S_OK : S_FALSE;
}
HRESULT CStyleTrack::Save( LPSTREAM pStream, BOOL fClearDirty )
{
return E_NOTIMPL;
}
HRESULT CStyleTrack::GetSizeMax( ULARGE_INTEGER* /*pcbSize*/ )
{
return E_NOTIMPL;
}
BOOL Less(StylePair& SP1, StylePair& SP2)
{ return SP1.m_mtTime < SP2.m_mtTime; }
HRESULT CStyleTrack::Load(LPSTREAM pStream )
{
V_INAME(CStyleTrack::Load);
V_INTERFACE(pStream);
IAARIFFStream* pIRiffStream;
//MMCKINFO ckMain;
MMCKINFO ck;
HRESULT hr = E_FAIL;
EnterCriticalSection( &m_CriticalSection );
if (!m_pTrackInfo)
{
LeaveCriticalSection( &m_CriticalSection );
return DMUS_E_NOT_INIT;
}
StyleTrackInfo* pTrackInfo = (StyleTrackInfo*)m_pTrackInfo;
if (m_pTrackInfo->m_dwPatternTag != DMUS_PATTERN_STYLE)
{
LeaveCriticalSection( &m_CriticalSection );
return E_FAIL;
}
pTrackInfo->m_pISList.CleanUp();
if( SUCCEEDED( AllocRIFFStream( pStream, &pIRiffStream ) ) )
{
if (pIRiffStream->Descend( &ck, NULL, 0 ) == 0)
{
if (ck.ckid == FOURCC_LIST && ck.fccType == DMUS_FOURCC_STYLE_TRACK_LIST)
{
hr = pTrackInfo->LoadStyleRefList(pIRiffStream, &ck);
}
pIRiffStream->Ascend( &ck, 0 );
}
pIRiffStream->Release();
}
if (SUCCEEDED(hr))
{
pTrackInfo->m_pISList.MergeSort(Less);
m_pTrackInfo->m_dwValidate++;
hr = m_pTrackInfo->MergePChannels();
}
LeaveCriticalSection( &m_CriticalSection );
return hr;
}
HRESULT StyleTrackInfo::LoadStyleRefList( IAARIFFStream* pIRiffStream, MMCKINFO* pckParent )
{
HRESULT hr = S_OK;
HRESULT hrStyle = E_FAIL;
if (!pIRiffStream || !pckParent) return E_INVALIDARG;
MMCKINFO ck;
while ( pIRiffStream->Descend( &ck, pckParent, 0 ) == 0 )
{
if ( ck.ckid == FOURCC_LIST && ck.fccType == DMUS_FOURCC_STYLE_REF_LIST )
{
hr = LoadStyleRef(pIRiffStream, &ck);
if (hr == S_OK)
{
hrStyle = hr;
}
pIRiffStream->Ascend( &ck, 0 );
}
pIRiffStream->Ascend( &ck, 0 );
}
if (hr != S_OK && hrStyle == S_OK)
{
hr = hrStyle;
}
return hr;
}
HRESULT StyleTrackInfo::LoadStyleRef( IAARIFFStream* pIRiffStream, MMCKINFO* pckParent )
{
HRESULT hr = S_OK;
HRESULT hrStyle = S_OK;
if (!pIRiffStream || !pckParent) return E_INVALIDARG;
MMCKINFO ck;
IStream* pIStream = pIRiffStream->GetStream();
if(!pIStream) return E_FAIL;
IDMStyle* pStyle = NULL;
TListItem<StylePair>* pNew = new TListItem<StylePair>;
if (!pNew) return E_OUTOFMEMORY;
StylePair& rNew = pNew->GetItemValue();
while (pIRiffStream->Descend( &ck, pckParent, 0 ) == 0)
{
switch (ck.ckid)
{
case DMUS_FOURCC_TIME_STAMP_CHUNK:
{
DWORD dwTime;
DWORD cb;
hr = pIStream->Read( &dwTime, sizeof( dwTime ), &cb );
if (FAILED(hr) || cb != sizeof( dwTime ) )
{
if (SUCCEEDED(hr)) hr = E_FAIL;
pIRiffStream->Ascend( &ck, 0 );
goto ON_END;
}
rNew.m_mtTime = dwTime;
}
break;
case FOURCC_LIST:
if (ck.fccType == DMUS_FOURCC_REF_LIST)
{
hr = LoadReference(pIStream, pIRiffStream, ck, &pStyle);
if (hr != S_OK)
{
hrStyle = hr;
}
if (SUCCEEDED(hr))
{
rNew.m_pStyle = pStyle;
}
}
break;
}
pIRiffStream->Ascend( &ck, 0 );
}
if (SUCCEEDED(hr))
{
m_pISList.AddTail(pNew);
}
else
{
delete pNew;
}
ON_END:
pIStream->Release();
if (hr == S_OK && hrStyle != S_OK)
{
hr = hrStyle;
}
return hr;
}
//////////////////////////////////////////////////////////////////////
// StyleTrackInfo::LoadReference
HRESULT StyleTrackInfo::LoadReference(IStream *pStream,
IAARIFFStream *pIRiffStream,
MMCKINFO& ckParent,
IDMStyle** ppStyle)
{
if (!pStream || !pIRiffStream || !ppStyle) return E_INVALIDARG;
IDirectMusicLoader* pLoader = NULL;
IDirectMusicGetLoader *pIGetLoader;
HRESULT hr = pStream->QueryInterface( IID_IDirectMusicGetLoader,(void **) &pIGetLoader );
if (FAILED(hr)) return hr;
hr = pIGetLoader->GetLoader(&pLoader);
pIGetLoader->Release();
if (FAILED(hr)) return hr;
DMUS_OBJECTDESC desc;
ZeroMemory(&desc, sizeof(desc));
DWORD cbRead;
MMCKINFO ckNext;
ckNext.ckid = 0;
ckNext.fccType = 0;
DWORD dwSize = 0;
while( pIRiffStream->Descend( &ckNext, &ckParent, 0 ) == 0 )
{
switch(ckNext.ckid)
{
case DMUS_FOURCC_REF_CHUNK:
DMUS_IO_REFERENCE ioDMRef;
hr = pStream->Read(&ioDMRef, sizeof(DMUS_IO_REFERENCE), &cbRead);
if(SUCCEEDED(hr) && cbRead == sizeof(DMUS_IO_REFERENCE))
{
desc.guidClass = ioDMRef.guidClassID;
desc.dwValidData |= ioDMRef.dwValidData;
desc.dwValidData |= DMUS_OBJ_CLASS;
}
else if(SUCCEEDED(hr))
{
hr = E_FAIL;
}
break;
case DMUS_FOURCC_GUID_CHUNK:
hr = pStream->Read(&(desc.guidObject), sizeof(GUID), &cbRead);
if(SUCCEEDED(hr) && cbRead == sizeof(GUID))
{
desc.dwValidData |= DMUS_OBJ_OBJECT;
}
else if(SUCCEEDED(hr))
{
hr = E_FAIL;
}
break;
case DMUS_FOURCC_DATE_CHUNK:
hr = pStream->Read(&(desc.ftDate), sizeof(FILETIME), &cbRead);
if(SUCCEEDED(hr) && cbRead == sizeof(FILETIME))
{
desc.dwValidData |= DMUS_OBJ_DATE;
}
else if(SUCCEEDED(hr))
{
hr = E_FAIL;
}
break;
case DMUS_FOURCC_NAME_CHUNK:
dwSize = min(sizeof(desc.wszName), ckNext.cksize);
hr = pStream->Read(desc.wszName, dwSize, &cbRead);
if(SUCCEEDED(hr) && cbRead == dwSize)
{
desc.wszName[DMUS_MAX_NAME - 1] = L'\0';
desc.dwValidData |= DMUS_OBJ_NAME;
}
else if(SUCCEEDED(hr))
{
hr = E_FAIL;
}
break;
case DMUS_FOURCC_FILE_CHUNK:
dwSize = min(sizeof(desc.wszFileName), ckNext.cksize);
hr = pStream->Read(desc.wszFileName, dwSize, &cbRead);
if(SUCCEEDED(hr) && cbRead == dwSize)
{
desc.wszFileName[DMUS_MAX_FILENAME - 1] = L'\0';
desc.dwValidData |= DMUS_OBJ_FILENAME;
}
else if(SUCCEEDED(hr))
{
hr = E_FAIL;
}
break;
case DMUS_FOURCC_CATEGORY_CHUNK:
dwSize = min(sizeof(desc.wszCategory), ckNext.cksize);
hr = pStream->Read(desc.wszCategory, dwSize, &cbRead);
if(SUCCEEDED(hr) && cbRead == dwSize)
{
desc.wszCategory[DMUS_MAX_CATEGORY - 1] = L'\0';
desc.dwValidData |= DMUS_OBJ_CATEGORY;
}
else if(SUCCEEDED(hr))
{
hr = E_FAIL;
}
break;
case DMUS_FOURCC_VERSION_CHUNK:
DMUS_IO_VERSION ioDMObjVer;
hr = pStream->Read(&ioDMObjVer, sizeof(DMUS_IO_VERSION), &cbRead);
if(SUCCEEDED(hr) && cbRead == sizeof(DMUS_IO_VERSION))
{
desc.vVersion.dwVersionMS = ioDMObjVer.dwVersionMS;
desc.vVersion.dwVersionLS = ioDMObjVer.dwVersionLS;
desc.dwValidData |= DMUS_OBJ_VERSION;
}
else if(SUCCEEDED(hr))
{
hr = E_FAIL;
}
break;
default:
break;
}
if(SUCCEEDED(hr) && pIRiffStream->Ascend(&ckNext, 0) == 0)
{
ckNext.ckid = 0;
ckNext.fccType = 0;
}
else if (SUCCEEDED(hr)) hr = E_FAIL;
}
if(SUCCEEDED(hr))
{
desc.dwSize = sizeof(DMUS_OBJECTDESC);
hr = pLoader->GetObject(&desc, IID_IDMStyle, (void**)ppStyle);
if(SUCCEEDED(hr))
{
DMStyleStruct* pStyle;
(*ppStyle)->GetStyleInfo((void **)&pStyle);
TListItem<DirectMusicPart*>* pPart;
for(pPart = pStyle->m_PartList.GetHead(); pPart != NULL; pPart = pPart->GetNext())
{
DirectMusicPart* pPattern = pPart->GetItemValue();
DirectMusicTimeSig& TimeSig =
pPattern->m_timeSig.m_bBeat == 0 ? pStyle->m_TimeSignature : pPattern->m_timeSig;
pPattern->EventList.MergeSort(TimeSig);
}
}
}
if (pLoader)
{
pLoader->Release();
}
return hr;
}
HRESULT STDMETHODCALLTYPE CStyleTrack::AddNotificationType(
/* [in] */ REFGUID rGuidNotify)
{
V_INAME(CStyleTrack::AddNotificationType);
V_REFGUID(rGuidNotify);
HRESULT hr = S_OK;
EnterCriticalSection( &m_CriticalSection );
if (m_pTrackInfo)
hr = m_pTrackInfo->AddNotificationType(rGuidNotify);
else
hr = DMUS_E_NOT_INIT;
LeaveCriticalSection( &m_CriticalSection );
return hr;
}
HRESULT STDMETHODCALLTYPE CStyleTrack::RemoveNotificationType(
/* [in] */ REFGUID rGuidNotify)
{
V_INAME(CStyleTrack::RemoveNotificationType);
V_REFGUID(rGuidNotify);
HRESULT hr = S_OK;
EnterCriticalSection( &m_CriticalSection );
if (m_pTrackInfo)
hr = m_pTrackInfo->RemoveNotificationType(rGuidNotify);
else
hr = DMUS_E_NOT_INIT;
LeaveCriticalSection( &m_CriticalSection );
return hr;
}
HRESULT STDMETHODCALLTYPE CStyleTrack::Clone(
MUSIC_TIME mtStart,
MUSIC_TIME mtEnd,
IDirectMusicTrack** ppTrack)
{
V_INAME(CStyleTrack::Clone);
V_PTRPTR_WRITE(ppTrack);
HRESULT hr = S_OK;
if(mtStart < 0 )
{
return E_INVALIDARG;
}
if(mtStart > mtEnd)
{
return E_INVALIDARG;
}
EnterCriticalSection( &m_CriticalSection );
CStyleTrack *pDM;
try
{
pDM = new CStyleTrack(*this, mtStart, mtEnd);
}
catch( ... )
{
pDM = NULL;
}
if (pDM == NULL) {
LeaveCriticalSection( &m_CriticalSection );
return E_OUTOFMEMORY;
}
hr = pDM->QueryInterface(IID_IDirectMusicTrack, (void**)ppTrack);
pDM->Release();
LeaveCriticalSection( &m_CriticalSection );
return hr;
}
STDMETHODIMP CStyleTrack::SetTrack(IUnknown* pStyle)
{
if (!pStyle) return E_POINTER;
EnterCriticalSection( &m_CriticalSection );
if (!m_pTrackInfo)
{
LeaveCriticalSection( &m_CriticalSection );
return DMUS_E_NOT_INIT;
}
IDMStyle* pIS = NULL;
pStyle->QueryInterface(IID_IDMStyle, (void**)&pIS);
TListItem<StylePair>* pNew = new TListItem<StylePair>;
if (!pNew)
{
LeaveCriticalSection( &m_CriticalSection );
return E_OUTOFMEMORY;
}
pNew->GetItemValue().m_mtTime = 0;
pNew->GetItemValue().m_pStyle = pIS;
m_pTrackInfo->m_pISList.AddTail(pNew);
if (pIS) pIS->Release();
LeaveCriticalSection( &m_CriticalSection );
return S_OK;
}
// this gets the first style in the track's list.
STDMETHODIMP CStyleTrack::GetStyle(IUnknown * * ppStyle)
{
HRESULT hr;
EnterCriticalSection( &m_CriticalSection );
if (!m_pTrackInfo)
{
LeaveCriticalSection( &m_CriticalSection );
return DMUS_E_NOT_INIT;
}
TListItem<StylePair>* pHead = m_pTrackInfo->m_pISList.GetHead();
if (pHead && pHead->GetItemValue().m_pStyle)
{
IUnknown* pIDMS = NULL;
hr = pHead->GetItemValue().m_pStyle->QueryInterface(IID_IUnknown, (void**)&pIDMS);
if (SUCCEEDED(hr))
{
*ppStyle = pIDMS;
pIDMS->Release();
hr = S_OK;
}
}
else
hr = E_FAIL;
LeaveCriticalSection( &m_CriticalSection );
return hr;
}
// need this for state data, not clock time
STDMETHODIMP CStyleTrack::GetParamEx(REFGUID rguidType,REFERENCE_TIME rtTime,
REFERENCE_TIME* prtNext,void* pParam,void * pStateData, DWORD dwFlags)
{
MUSIC_TIME mtNext = 0;
HRESULT hr = GetParam(rguidType,(MUSIC_TIME) rtTime, &mtNext, pParam, pStateData);
if (prtNext)
{
*prtNext = mtNext;
}
return hr;
}
// only needed because we needed to pass state data into GetParam
STDMETHODIMP CStyleTrack::SetParamEx(REFGUID rguidType,REFERENCE_TIME rtTime,
void* pParam, void * pStateData, DWORD dwFlags)
{
return SetParam(rguidType, (MUSIC_TIME) rtTime , pParam);
}
// only needed because we needed to pass state data into GetParam
STDMETHODIMP CStyleTrack::PlayEx(void* pStateData,REFERENCE_TIME rtStart,
REFERENCE_TIME rtEnd,REFERENCE_TIME rtOffset,
DWORD dwFlags,IDirectMusicPerformance* pPerf,
IDirectMusicSegmentState* pSegSt,DWORD dwVirtualID)
{
V_INAME(IDirectMusicTrack::PlayEx);
V_INTERFACE(pPerf);
V_INTERFACE(pSegSt);
HRESULT hr;
EnterCriticalSection(&m_CriticalSection);
hr = Play(pStateData, (MUSIC_TIME)rtStart, (MUSIC_TIME)rtEnd,
(MUSIC_TIME)rtOffset, dwFlags, pPerf, pSegSt, dwVirtualID);
LeaveCriticalSection(&m_CriticalSection);
return hr;
}
HRESULT CStyleTrack::GetParam(
REFGUID rCommandGuid,
MUSIC_TIME mtTime,
MUSIC_TIME* pmtNext,
void *pData)
{
return GetParam(rCommandGuid, mtTime, pmtNext, pData, NULL);
}
STDMETHODIMP CStyleTrack::Compose(
IUnknown* pContext,
DWORD dwTrackGroup,
IDirectMusicTrack** ppResultTrack)
{
return E_NOTIMPL;
}
STDMETHODIMP CStyleTrack::Join(
IDirectMusicTrack* pNewTrack,
MUSIC_TIME mtJoin,
IUnknown* pContext,
DWORD dwTrackGroup,
IDirectMusicTrack** ppResultTrack)
{
V_INAME(IDirectMusicTrack::Join);
V_INTERFACE(pNewTrack);
V_INTERFACE_OPT(pContext);
V_PTRPTR_WRITE_OPT(ppResultTrack);
HRESULT hr = S_OK;
EnterCriticalSection(&m_CriticalSection);
if (ppResultTrack)
{
hr = Clone(0, mtJoin, ppResultTrack);
if (SUCCEEDED(hr))
{
hr = ((CStyleTrack*)*ppResultTrack)->JoinInternal(pNewTrack, mtJoin, dwTrackGroup);
}
}
else
{
hr = JoinInternal(pNewTrack, mtJoin, dwTrackGroup);
}
LeaveCriticalSection(&m_CriticalSection);
return hr;
}
HRESULT CStyleTrack::JoinInternal(
IDirectMusicTrack* pNewTrack,
MUSIC_TIME mtJoin,
DWORD dwTrackGroup)
{
HRESULT hr = S_OK;
CStyleTrack* pOtherTrack = (CStyleTrack*)pNewTrack;
if (!m_pTrackInfo || !pOtherTrack->m_pTrackInfo)
{
return DMUS_E_NOT_INIT;
}
TListItem<StylePair>* pScan = pOtherTrack->m_pTrackInfo->m_pISList.GetHead();
for (; pScan; pScan = pScan->GetNext())
{
StylePair& rScan = pScan->GetItemValue();
TListItem<StylePair>* pNew = new TListItem<StylePair>;
if (pNew)
{
StylePair& rNew = pNew->GetItemValue();
rNew.m_mtTime = rScan.m_mtTime + mtJoin;
rNew.m_pStyle = rScan.m_pStyle;
if (rNew.m_pStyle) rNew.m_pStyle->AddRef();
m_pTrackInfo->m_pISList.AddTail(pNew);
}
else
{
hr = E_OUTOFMEMORY;
break;
}
}
return hr;
}
Reference in a new issue Copy permalink