private void CheckForAbort()
{
if (_aborted)
{
// Synchronous operation
lock (_queueIn)
{
foreach (InItem inItem in _queueIn)
{
// Do we have an event or a sound buffer
if (inItem._waveHeader != null)
{
WaveHeader waveHeader = inItem._waveHeader;
Interop.WinMM.waveOutUnprepareHeader(
_hwo, waveHeader.WAVEHDR.AddrOfPinnedObject(), waveHeader.SizeHDR);
waveHeader.Dispose();
}
else
{
_asyncDispatch.Post(inItem._userData);
}
}
_queueIn.Clear();
// if the queue is empty, then restart the callers thread
_evt.Set();
}
}
ClearBuffers();
}
private void ClearBuffers()
{
foreach (InItem item in _queueOut)
{
WaveHeader waveHeader = item._waveHeader;
MMSYSERR mMSYSERR = SafeNativeMethods.waveOutUnprepareHeader(_hwo, waveHeader.WAVEHDR.AddrOfPinnedObject(), waveHeader.SizeHDR);
}
}
private void ClearBuffers()
{
foreach (InItem item in _queueOut)
{
WaveHeader waveHeader = item._waveHeader;
Interop.WinMM.MMSYSERR result = Interop.WinMM.waveOutUnprepareHeader(
_hwo, waveHeader.WAVEHDR.AddrOfPinnedObject(), waveHeader.SizeHDR);
if (result != Interop.WinMM.MMSYSERR.NOERROR)
{
//System.Diagnostics.Debug.Assert (false);
}
waveHeader.Dispose();
}
_queueOut.Clear();
}
private void CheckForAbort()
{
if (_aborted)
{
lock (_queueIn)
{
foreach (InItem item in _queueIn)
{
if (item._waveHeader != null)
{
WaveHeader waveHeader = item._waveHeader;
SafeNativeMethods.waveOutUnprepareHeader(_hwo, waveHeader.WAVEHDR.AddrOfPinnedObject(), waveHeader.SizeHDR);
}
else
{
_asyncDispatch.Post(item._userData);
}
}
_queueIn.Clear();
_evt.Set();
}
}
ClearBuffers();
}
internal override void Play(byte[] buffer)
{
if (_deviceOpen)
{
int num = buffer.Length;
_bytesWritten += num;
WaveHeader waveHeader = new WaveHeader(buffer);
GCHandle wAVEHDR = waveHeader.WAVEHDR;
MMSYSERR mMSYSERR = SafeNativeMethods.waveOutPrepareHeader(_hwo, wAVEHDR.AddrOfPinnedObject(), waveHeader.SizeHDR);
if (mMSYSERR != 0)
{
throw new AudioException(mMSYSERR);
}
lock (_noWriteOutLock)
{
if (!_aborted)
{
lock (_queueIn)
{
InItem item = new InItem(waveHeader);
_queueIn.Add(item);
_evt.Reset();
}
mMSYSERR = SafeNativeMethods.waveOutWrite(_hwo, wAVEHDR.AddrOfPinnedObject(), waveHeader.SizeHDR);
if (mMSYSERR != 0)
{
lock (_queueIn)
{
_queueIn.RemoveAt(_queueIn.Count - 1);
throw new AudioException(mMSYSERR);
}
}
}
}
}
}
internal InItem(WaveHeader waveHeader)
{
_waveHeader = waveHeader;
}
