/// <summary>
/// Open MidiIn.
/// MidiIn��J���܂��B
/// </summary>
/// <param name="deviceId">index of GetDeviceNames(). GetDeviceNames()��index</param>
public MidiIn(uint deviceId)
{
eventHandler = new MessageThread(ThreadPriority.AboveNormal);
eventHandler.MessageHandlers[Win32.MM_MIM_LONGDATA] = delegate(Message m)
{
Win32.MidiHeader header = Win32.MidiHeader.FromIntPtr(m.LParam);
MidiBuffer buf = MidiBuffer.FromMidiHeader(header);
int bytesRecorded = (int)header.dwBytesRecorded;
if (OnLongMsg != null && bytesRecorded != 0)
{
byte[] data = buf.Data;
if (bytesRecorded != buf.Data.Length)
{
data = new byte[bytesRecorded];
Array.Copy(buf.Data, data, bytesRecorded);
}
OnLongMsg(data);
}
if (recording)
{
Win32.midiInAddBuffer(deviceHandle, m.LParam, Win32.MidiHeader.SizeOfMidiHeader);
}
else
{
Win32.midiInUnprepareHeader(deviceHandle, m.LParam, Win32.MidiHeader.SizeOfMidiHeader);
buf.Dispose();
Interlocked.Decrement(ref enqueuedBufferCount);
}
};
eventHandler.MessageHandlers[Win32.MM_MIM_DATA] = delegate(Message m)
{
if (OnShortMsg != null)
OnShortMsg((uint)m.LParam);
};
int mmret = Win32.midiInOpen(out deviceHandle, deviceId, new IntPtr(eventHandler.Win32ThreadID), IntPtr.Zero, Win32.CALLBACK_THREAD);
if (mmret != Win32.MMSYSERR_NOERROR)
{
eventHandler.Dispose();
throw new Exception("Error on midiInOpen. (ret=" + mmret + ")");
}
}
/// <summary>
/// Open MidiOut.
/// MidiOut��J���܂��B
/// </summary>
/// <param name="deviceId">MidiOut.MidiMapper or index of GetDeviceNames(). MidiOut.MidiMapper���AGetDeviceNames()��index</param>
public MidiOut(int deviceId)
{
eventHandler = new MessageThread(ThreadPriority.AboveNormal);
eventHandler.MessageHandlers[Win32.MM_MOM_DONE] = delegate(Message m)
{
Win32.MidiHeader hdr = Win32.MidiHeader.FromIntPtr(m.LParam);
MidiBuffer buf = MidiBuffer.FromMidiHeader(hdr);
Win32.midiOutUnprepareHeader(deviceHandle, buf.pHeader, Win32.MidiHeader.SizeOfMidiHeader);
buf.Dispose();
Interlocked.Add(ref enqueuedBufferSize, -buf.BufferLength);
if (OnDone != null)
OnDone();
};
int mmret = Win32.midiOutOpen(out deviceHandle, (uint)deviceId, new IntPtr(eventHandler.Win32ThreadID), IntPtr.Zero, Win32.CALLBACK_THREAD);
if (mmret != Win32.MMSYSERR_NOERROR)
{
eventHandler.Dispose();
throw new Exception("Error on midiOutOpen. (ret=" + mmret + ")");
}
}
