private static unsafe uint writeImpl(Node node, uint offset, uint size, byte[] buffer)
{
AudioDataCookie cookie = (AudioDataCookie)node.Cookie;
if (cookie == null)
return(0);
fixed(byte *ptr = buffer)
{
uint off = 0;
while (size > 0)
{
uint written = cookie.Buffer.Write(ptr + off, size);
if (written == 0)
{
MultiTasking.Tasking.Yield();
}
size -= written;
off += written;
}
}
return(size);
}
private static void openImpl(Node node)
{
AudioDataCookie cookie = new AudioDataCookie(BufferSize * sizeof(ushort));
m_buffers.Add(cookie.Buffer);
node.Cookie = cookie;
}
private static void closeImpl(Node node)
{
AudioDataCookie cookie = (AudioDataCookie)node.Cookie;
int index = m_buffers.IndexOf(cookie.Buffer);
if (index > -1)
{
m_buffers.RemoveAt(index);
}
cookie.Dispose();
Heap.Free(cookie);
node.Cookie = null;
}
