private void Advance()
{
m_CurrentBuffer = m_CurrentBuffer == null ? m_Buffers : m_CurrentBuffer.NextBuffer;
if (m_CurrentBuffer != null)
{
m_CurrentBuffer.WaitFor();
}
}
private void WaitForAllBuffers()
{
WaveOutBuffer Buf = m_Buffers;
while (m_Buffers != null && Buf.NextBuffer != m_Buffers)
{
Buf.WaitFor();
Buf = Buf.NextBuffer;
}
}
internal static void WaveOutProc(IntPtr hdrvr, int uMsg, int dwUser, ref WaveOutBase.WaveHdr wavhdr, int dwParam2)
{
if (uMsg == WaveOutBase.MM_WOM_DONE)
{
try
{
GCHandle h = (GCHandle)wavhdr.dwUser;
WaveOutBuffer buf = (WaveOutBuffer)h.Target;
buf.OnCompleted();
}
catch
{
}
}
}
private void FreeBuffers()
{
m_CurrentBuffer = null;
if (m_Buffers != null)
{
WaveOutBuffer First = m_Buffers;
m_Buffers = null;
WaveOutBuffer Current = First;
do
{
WaveOutBuffer Next = Current.NextBuffer;
Current.Dispose();
Current = Next;
} while (Current != First);
}
}
private void AllocateBuffers(int bufferSize, int bufferCount)
{
FreeBuffers();
if (bufferCount > 0)
{
m_Buffers = new WaveOutBuffer(m_WaveOut, bufferSize);
WaveOutBuffer Prev = m_Buffers;
try
{
for (int i = 1; i < bufferCount; i++)
{
WaveOutBuffer Buf = new WaveOutBuffer(m_WaveOut, bufferSize);
Prev.NextBuffer = Buf;
Prev = Buf;
}
}
finally
{
Prev.NextBuffer = m_Buffers;
}
}
}