Leaked source code of windows server 2003
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// Quantize.cpp : Implementation of CQuantizeTool
//
// Copyright (C) 1999 Microsoft Corporation. All Rights Reserved
//
#include "dmusicc.h"
#include "dmusici.h"
#include "debug.h"
#include "quantize.h"
#include "toolhelp.h"
CQuantizeTool::CQuantizeTool()
{
ParamInfo Params[DMUS_QUANTIZE_PARAMCOUNT] =
{
{ DMUS_QUANTIZE_STRENGTH, MPT_INT,MP_CAPS_ALL,0,110,80,
L"Percent",L"Strength",NULL }, // Strength - 80% by default
{ DMUS_QUANTIZE_TIMEUNIT, MPT_ENUM,MP_CAPS_ALL, DMUS_TIME_UNIT_MTIME,DMUS_TIME_UNIT_1,DMUS_TIME_UNIT_GRID,
L"",L"Resolution Units",L"Music Clicks,Grid,Beat,Bar,64th note triplets,64th notes,32nd note triplets,32nd notes,16th note triplets,16th notes,8th note triplets,8th notes,Quarter note triplets,Quarter notes,Half note triplets,Half notes,Whole note triplets,Whole notes" },
{ DMUS_QUANTIZE_RESOLUTION, MPT_INT,MP_CAPS_ALL,1,1000,1,
L"",L"Resolution",NULL}, // Resolution - 1 grid note by default
{ DMUS_QUANTIZE_TYPE, MPT_ENUM,MP_CAPS_ALL, DMUS_QUANTIZET_START,DMUS_QUANTIZET_ALL,DMUS_QUANTIZET_START,
L"",L"Type",L"Start Time,Duration,Start and Duration"} // Type - quantize start time by default
};
InitParams(DMUS_QUANTIZE_PARAMCOUNT,Params);
m_fMusicTime = TRUE; // override default setting.
}
STDMETHODIMP_(ULONG) CQuantizeTool::AddRef()
{
return InterlockedIncrement(&m_cRef);
}
STDMETHODIMP_(ULONG) CQuantizeTool::Release()
{
if( 0 == InterlockedDecrement(&m_cRef) )
{
delete this;
return 0;
}
return m_cRef;
}
STDMETHODIMP CQuantizeTool::QueryInterface(const IID &iid, void **ppv)
{
if (iid == IID_IUnknown || iid == IID_IDirectMusicTool || iid == IID_IDirectMusicTool8)
{
*ppv = static_cast<IDirectMusicTool8*>(this);
}
else if(iid == IID_IPersistStream)
{
*ppv = static_cast<IPersistStream*>(this);
}
else if(iid == IID_IDirectMusicQuantizeTool)
{
*ppv = static_cast<IDirectMusicQuantizeTool*>(this);
}
else if(iid == IID_IMediaParams)
{
*ppv = static_cast<IMediaParams*>(this);
}
else if(iid == IID_IMediaParamInfo)
{
*ppv = static_cast<IMediaParamInfo*>(this);
}
else if(iid == IID_ISpecifyPropertyPages)
{
*ppv = static_cast<ISpecifyPropertyPages*>(this);
}
else
{
*ppv = NULL;
return E_NOINTERFACE;
}
AddRef();
return S_OK;
}
//////////////////////////////////////////////////////////////////////
// IPersistStream
STDMETHODIMP CQuantizeTool::GetClassID(CLSID* pClassID)
{
if (pClassID)
{
*pClassID = CLSID_DirectMusicQuantizeTool;
return S_OK;
}
return E_POINTER;
}
//////////////////////////////////////////////////////////////////////
// IPersistStream Methods:
STDMETHODIMP CQuantizeTool::IsDirty()
{
if (m_fDirty) return S_OK;
else return S_FALSE;
}
STDMETHODIMP CQuantizeTool::Load(IStream* pStream)
{
EnterCriticalSection(&m_CrSec);
DWORD dwChunkID;
DWORD dwSize;
HRESULT hr = pStream->Read(&dwChunkID, sizeof(dwChunkID), NULL);
hr = pStream->Read(&dwSize, sizeof(dwSize), NULL);
if(SUCCEEDED(hr) && (dwChunkID == FOURCC_QUANTIZE_CHUNK))
{
DMUS_IO_QUANTIZE_HEADER Header;
memset(&Header,0,sizeof(Header));
hr = pStream->Read(&Header, min(sizeof(Header),dwSize), NULL);
if (SUCCEEDED(hr))
{
SetParam(DMUS_QUANTIZE_STRENGTH,(float) Header.dwStrength);
SetParam(DMUS_QUANTIZE_TIMEUNIT,(float) Header.dwTimeUnit);
SetParam(DMUS_QUANTIZE_RESOLUTION,(float) Header.dwResolution);
SetParam(DMUS_QUANTIZE_TYPE,(float) Header.dwType);
}
}
m_fDirty = FALSE;
LeaveCriticalSection(&m_CrSec);
return hr;
}
STDMETHODIMP CQuantizeTool::Save(IStream* pStream, BOOL fClearDirty)
{
EnterCriticalSection(&m_CrSec);
DWORD dwChunkID = FOURCC_QUANTIZE_CHUNK;
DWORD dwSize = sizeof(DMUS_IO_QUANTIZE_HEADER);
HRESULT hr = pStream->Write(&dwChunkID, sizeof(dwChunkID), NULL);
if (SUCCEEDED(hr))
{
hr = pStream->Write(&dwSize, sizeof(dwSize), NULL);
}
if (SUCCEEDED(hr))
{
DMUS_IO_QUANTIZE_HEADER Header;
GetParamInt(DMUS_QUANTIZE_STRENGTH,MAX_REF_TIME,(long *)&Header.dwStrength);
GetParamInt(DMUS_QUANTIZE_TIMEUNIT,MAX_REF_TIME,(long *) &Header.dwTimeUnit);
GetParamInt(DMUS_QUANTIZE_RESOLUTION,MAX_REF_TIME,(long *) &Header.dwResolution);
GetParamInt(DMUS_QUANTIZE_TYPE,MAX_REF_TIME,(long *) &Header.dwType);
hr = pStream->Write(&Header, sizeof(Header),NULL);
}
if (fClearDirty) m_fDirty = FALSE;
LeaveCriticalSection(&m_CrSec);
return hr;
}
STDMETHODIMP CQuantizeTool::GetSizeMax(ULARGE_INTEGER* pcbSize)
{
if (pcbSize == NULL)
{
return E_POINTER;
}
pcbSize->QuadPart = sizeof(DMUS_IO_QUANTIZE_HEADER) + 8; // Data plus RIFF header.
return S_OK;
}
STDMETHODIMP CQuantizeTool::GetPages(CAUUID * pPages)
{
pPages->cElems = 1;
pPages->pElems = (GUID *) CoTaskMemAlloc(sizeof(GUID));
if (pPages->pElems == NULL)
return E_OUTOFMEMORY;
*(pPages->pElems) = CLSID_QuantizePage;
return NOERROR;
}
/////////////////////////////////////////////////////////////////
// IDirectMusicTool
STDMETHODIMP CQuantizeTool::ProcessPMsg( IDirectMusicPerformance* pPerf,
DMUS_PMSG* pPMsg )
{
// returning S_FREE frees the message. If StampPMsg()
// fails, there is no destination for this message so
// free it.
if(NULL == pPMsg->pGraph )
{
return DMUS_S_FREE;
}
if (FAILED(pPMsg->pGraph->StampPMsg(pPMsg)))
{
return DMUS_S_FREE;
}
// We need to know the time format so we can call GetParamInt() to read control parameters.
REFERENCE_TIME rtTime;
if (m_fMusicTime) rtTime = pPMsg->mtTime;
else rtTime = pPMsg->rtTime;
if( pPMsg->dwType == DMUS_PMSGT_NOTE )
{
DMUS_NOTE_PMSG *pNote = (DMUS_NOTE_PMSG *) pPMsg;
IDirectMusicPerformance8 *pPerf8; // We'll need the DX8 interface to access ClonePMsg.
if (SUCCEEDED(pPerf->QueryInterface(IID_IDirectMusicPerformance8,(void **)&pPerf8)))
{
long lStrength, lResolution, lTimeUnit, lType;
GetParamInt(DMUS_QUANTIZE_STRENGTH,rtTime,&lStrength);
GetParamInt(DMUS_QUANTIZE_RESOLUTION,rtTime,&lResolution);
GetParamInt(DMUS_QUANTIZE_TIMEUNIT,rtTime,&lTimeUnit);
GetParamInt(DMUS_QUANTIZE_TYPE,rtTime,&lType);
DMUS_TIMESIGNATURE TimeSig;
if (SUCCEEDED(pPerf8->GetParamEx(GUID_TimeSignature,pNote->dwVirtualTrackID,pNote->dwGroupID,DMUS_SEG_ANYTRACK,pNote->mtTime - pNote->nOffset,NULL,&TimeSig)))
{
lResolution *= CToolHelper::TimeUnitToTicks(lTimeUnit,&TimeSig);
if (lResolution < 1) lResolution = 1;
if ((lType == DMUS_QUANTIZET_START) || (lType == DMUS_QUANTIZET_ALL))
{
MUSIC_TIME mtTime = -TimeSig.mtTime;
long lIntervals = (mtTime + (lResolution >> 1)) / lResolution;
long lOffset = mtTime - (lIntervals * lResolution);
lOffset *= lStrength;
lOffset /= 100;
pNote->mtTime -= lOffset;
pNote->dwFlags &= ~DMUS_PMSGF_REFTIME;
}
if ((lType == DMUS_QUANTIZET_LENGTH) || (lType == DMUS_QUANTIZET_ALL))
{
long lIntervals = (pNote->mtDuration + (lResolution >> 1)) / lResolution;
if (lIntervals < 1) lIntervals = 1;
long lOffset = pNote->mtDuration - (lIntervals * lResolution);
lOffset *= lStrength;
lOffset /= 100;
pNote->mtDuration -= lOffset;
}
}
pPerf8->Release();
}
}
return DMUS_S_REQUEUE;
}
STDMETHODIMP CQuantizeTool::Clone( IDirectMusicTool ** ppTool)
{
CQuantizeTool *pNew = new CQuantizeTool;
if (pNew)
{
HRESULT hr = pNew->CopyParamsFromSource(this);
if (SUCCEEDED(hr))
{
*ppTool = (IDirectMusicTool *) pNew;
}
else
{
delete pNew;
}
return hr;
}
else
{
return E_OUTOFMEMORY;
}
}
STDMETHODIMP CQuantizeTool::SetStrength(DWORD dwStrength)
{
return SetParam(DMUS_QUANTIZE_STRENGTH,(float) dwStrength);
}
STDMETHODIMP CQuantizeTool::SetTimeUnit(DWORD dwTimeUnit)
{
return SetParam(DMUS_QUANTIZE_TIMEUNIT,(float) dwTimeUnit);
}
STDMETHODIMP CQuantizeTool::SetResolution(DWORD dwResolution)
{
return SetParam(DMUS_QUANTIZE_RESOLUTION,(float) dwResolution);
}
STDMETHODIMP CQuantizeTool::SetType(DWORD dwType)
{
return SetParam(DMUS_QUANTIZE_TYPE,(float) dwType);
}
STDMETHODIMP CQuantizeTool::GetStrength(DWORD * pdwStrength)
{
return GetParamInt(DMUS_QUANTIZE_STRENGTH,MAX_REF_TIME,(long *) pdwStrength);
}
STDMETHODIMP CQuantizeTool::GetTimeUnit(DWORD * pdwTimeUnit)
{
return GetParamInt(DMUS_QUANTIZE_TIMEUNIT,MAX_REF_TIME,(long *) pdwTimeUnit);
}
STDMETHODIMP CQuantizeTool::GetResolution(DWORD * pdwResolution)
{
return GetParamInt(DMUS_QUANTIZE_RESOLUTION,MAX_REF_TIME,(long *) pdwResolution);
}
STDMETHODIMP CQuantizeTool::GetType(DWORD * pdwType)
{
return GetParamInt(DMUS_QUANTIZE_TYPE,MAX_REF_TIME,(long *) pdwType);
}