HRESULT CParamsManager::FlushEnvelope(
DWORD dwParamIndex,
REFERENCE_TIME refTimeStart,
REFERENCE_TIME refTimeEnd)
{
if (dwParamIndex >= m_cParams)
return E_INVALIDARG;
if (!m_pParamInfos)
return DMUS_E_NOT_INIT;
if (refTimeStart >= refTimeEnd)
return E_INVALIDARG;
EnterCriticalSection(&m_ParamsCriticalSection);
m_fDirty = TRUE;
CCurveList *pList = &m_pCurveLists[dwParamIndex];
CCurveList TempList;
CCurveItem *pCurve;
while ((pCurve = pList->RemoveHead()) != 0)
{
if ((pCurve->m_Envelope.rtStart >= refTimeStart) &&
(pCurve->m_Envelope.rtEnd <= refTimeEnd))
{
delete pCurve;
}
else
{
TempList.AddHead(pCurve);
}
}
while ((pCurve = TempList.RemoveHead()) != 0)
{
pList->AddHead(pCurve);
}
LeaveCriticalSection(&m_ParamsCriticalSection);
return S_OK;
}
HRESULT CParamsManager::AddEnvelope(
DWORD dwParamIndex,
DWORD cPoints,
MP_ENVELOPE_SEGMENT *ppEnvelope)
{
V_INAME(CParams::AddEnvelope);
V_PTR_READ(ppEnvelope, *ppEnvelope);
if (dwParamIndex >= m_cParams)
return E_INVALIDARG;
if (!m_pParamInfos)
return DMUS_E_NOT_INIT;
HRESULT hr = S_OK;
EnterCriticalSection(&m_ParamsCriticalSection);
m_fDirty = TRUE;
CCurveList *pList = &m_pCurveLists[dwParamIndex];
ParamInfo *pInfo = &m_pParamInfos[dwParamIndex];
DWORD dwCount;
for (dwCount = 0; dwCount < cPoints; dwCount++)
{
CCurveItem *pCurve = new CCurveItem;
if (!pCurve)
{
hr = E_OUTOFMEMORY;
break;
}
pCurve->m_Envelope = ppEnvelope[dwCount];
pCurve->m_Envelope.valEnd = ValRange(pCurve->m_Envelope.valEnd,
pInfo->MParamInfo.mpdMinValue, pInfo->MParamInfo.mpdMaxValue);
pCurve->m_Envelope.valStart = ValRange(pCurve->m_Envelope.valStart,
pInfo->MParamInfo.mpdMinValue, pInfo->MParamInfo.mpdMaxValue);
pList->AddHead(pCurve);
// next call to UpdateActiveParams will ensure the parameter's value is recalculated
m_dwActiveBits |= 1 << dwParamIndex;
//TraceI(6, "DMO envelope: time %I64d-%I64d, param #%d, value %hf-%hf\n",
// pCurve->m_Envelope.rtStart, pCurve->m_Envelope.rtEnd,
// dwParamIndex, pCurve->m_Envelope.valStart, pCurve->m_Envelope.valEnd);
}
LeaveCriticalSection(&m_ParamsCriticalSection);
return hr;
}
HRESULT CParamsManager::SetParam(DWORD dwParamIndex,MP_DATA value)
{
V_INAME(CParams::SetParam);
if (dwParamIndex >= m_cParams)
return E_INVALIDARG;
EnterCriticalSection(&m_ParamsCriticalSection);
m_fDirty = TRUE;
CCurveList *pList = &m_pCurveLists[dwParamIndex];
// ParamInfo *pInfo = &m_pParamInfos[dwParamIndex];
// If we've already got a list, just force the most recent curve item to this value.
// Otherwise, create a node and add it.
CCurveItem *pCurve = pList->GetHead();
if (!pCurve)
{
pCurve = new CCurveItem;
if (pCurve)
{
pCurve->m_Envelope.rtStart = 0x8000000000000000; // Max negative.
pCurve->m_Envelope.rtEnd = 0x7FFFFFFFFFFFFFFF; // Max positive.
pCurve->m_Envelope.flags = 0;
pList->AddHead(pCurve);
}
else
{
LeaveCriticalSection(&m_ParamsCriticalSection);
return E_OUTOFMEMORY;
}
}
pCurve->m_Envelope.valStart = value;
pCurve->m_Envelope.valEnd = value;
pCurve->m_Envelope.iCurve = MP_CURVE_JUMP;
LeaveCriticalSection(&m_ParamsCriticalSection);
return S_OK;
}
