private void FillBuffer(ref WaveOutBuffer buf)
{
int size = buf.Size;
byte[] b = new byte[size];
if (stream != null)
{
int pos = 0;
while (pos < size)
{
int toget = size - pos;
int got = stream.Read(b, pos, toget);
pos += got;
if (got < toget)
{
break;
}
}
if (pos == 0)
{
buf.Finished = true;
return;
}
}
else
{
System.Array.Clear(b, 0, b.Length);
}
System.Runtime.InteropServices.Marshal.Copy(b, 0, buf.Data, size);
}
private void WaitForAllBuffers()
{
WaveOutBuffer Buf = m_Buffers;
while (Buf.NextBuffer != m_Buffers)
{
Buf.WaitFor();
Buf = Buf.NextBuffer;
}
}
internal static void WaveOutProc(IntPtr hdrvr, int uMsg, int dwUser, ref WaveNative.WaveHdr wavhdr, int dwParam2)
{
if (uMsg == WaveNative.MM_WOM_DONE)
{
try {
GCHandle h = (GCHandle)wavhdr.dwUser;
WaveOutBuffer buf = (WaveOutBuffer)h.Target;
buf.OnCompleted();
}
catch {
}
}
}
private bool AllFinished()
{
WaveOutBuffer Buf = m_Buffers;
while (Buf.NextBuffer != m_Buffers)
{
if (!Buf.Finished)
{
return(false);
}
Buf = Buf.NextBuffer;
}
return(true);
}
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;
}
}
}
private void Advance()
{
m_CurrentBuffer = m_CurrentBuffer == null ? m_Buffers : m_CurrentBuffer.NextBuffer;
m_CurrentBuffer.WaitFor();
}