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[PORTCLS]

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- Reset number of mappings and available data when a reset request arrives
- Handle case where a get position request appears before an audio buffer arrives which results in divide by zero exception

svn path=/trunk/; revision=45487
This commit is contained in:
Johannes Anderwald 2010-02-07 15:35:00 +00:00
parent e2214c16ef
commit f326fb3cb3
2 changed files with 15 additions and 4 deletions
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5
reactos/drivers/wdm/audio/backpln/portcls/irpstream.cpp
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@ -466,6 +466,11 @@ CIrpQueue::CancelBuffers()
KsCancelIo(&m_IrpList, &m_IrpListLock);
// reset stream start flag
m_StartStream = FALSE;
// reset number of mappings
m_NumMappings = 0;
// reset number of data available
m_NumDataAvailable = 0;
// done
return TRUE;
}

14
reactos/drivers/wdm/audio/backpln/portcls/pin_wavecyclic.cpp
View file

@ -693,8 +693,11 @@ CPortPinWaveCyclic::UpdateCommonBuffer(
if (m_ConnectDetails->Interface.Id == KSINTERFACE_STANDARD_LOOPED_STREAMING)
{
// normalize position
m_Position.PlayOffset = m_Position.PlayOffset % m_Position.WriteOffset;
if (m_Position.WriteOffset)
{
// normalize position
m_Position.PlayOffset = m_Position.PlayOffset % m_Position.WriteOffset;
}
}
}
}
@ -742,8 +745,11 @@ CPortPinWaveCyclic::UpdateCommonBufferOverlap(
if (m_ConnectDetails->Interface.Id == KSINTERFACE_STANDARD_LOOPED_STREAMING)
{
// normalize position
m_Position.PlayOffset = m_Position.PlayOffset % m_Position.WriteOffset;
if (m_Position.WriteOffset)
{
// normalize position
m_Position.PlayOffset = m_Position.PlayOffset % m_Position.WriteOffset;
}
}
}