public static uint midiOutShortMsg(IntPtr hMidiOut, uint dwMsg)
{
MemoryStream outputStream = new MemoryStream();
byte[] bytes = BitConverter.GetBytes(dwMsg);
// Array.Reverse
outputStream.Write(bytes, 0, bytes.Length);
s_midiOutPort.SendBuffer(outputStream.GetWindowsRuntimeBuffer());
return(MidiWinApi.MMSYSERR_NOERROR);
}
public void SendSystemExclusive(byte[] bytes)
{
IBuffer buffer = bytes.AsBuffer();
midiOutPort.SendBuffer(buffer);
//MidiSystemExclusiveMessage midiMessageToSend = new MidiSystemExclusiveMessage(buffer);
//midiOutPort.SendMessage(midiMessageToSend);
//Task task = Task.Run(() =>
//{
// midiOutPort.SendMessage(midiMessageToSend);
//});
//task = null;
//GC.Collect();
}
public static IAsyncOperationWithProgress <int, MidiSysExStatusReport> SendSysExStreamAsyncWithProgress(
IRandomAccessStream inputStream,
IMidiOutPort outputPort,
uint bufferSize,
uint sendDelayMilliseconds = DefaultDelayBetweenBuffers)
{
return(AsyncInfo.Run <int, MidiSysExStatusReport>((token, progress) =>
Task.Run(async() =>
{
using (var dataReader = new DataReader(inputStream))
{
uint bytesRead = 0;
// allocate our message buffer
var buffer = new byte[bufferSize];
System.Diagnostics.Debug.WriteLine("Using transfer buffer size " + bufferSize + " bytes.");
progress.Report(new MidiSysExStatusReport()
{
Stage = MidiSysExStatusStages.SendingData, BytesRead = 0
});
// reset/reload the input stream
inputStream.Seek(0);
await dataReader.LoadAsync((uint)inputStream.Size);
bytesRead = 0;
// start actually sending data
uint buffIndex = 0;
while (dataReader.UnconsumedBufferLength > 0)
{
byte b = 0;
buffIndex = 0;
// This loop builds up one complete sysex message from f0 to f7
while (b != SysexEndMessageByte && dataReader.UnconsumedBufferLength > 0)
{
// if the user canceled, throw, so we get ejected from this
token.ThrowIfCancellationRequested();
// read next character
b = dataReader.ReadByte();
// append to buffer
buffer[buffIndex] = b;
buffIndex += 1;
bytesRead += 1;
}
progress.Report(new MidiSysExStatusReport()
{
Stage = MidiSysExStatusStages.SendingData, BytesRead = bytesRead
});
uint length = buffIndex;
var messageBuffer = new Windows.Storage.Streams.Buffer(length);
buffer.CopyTo(0, messageBuffer, 0, (int)length);
messageBuffer.Length = length;
//foreach (byte db in messageBuffer.ToArray())
//{
// System.Diagnostics.Debug.Write(string.Format("{0:X2} ", db));
//}
//System.Diagnostics.Debug.WriteLine("");
outputPort.SendBuffer(messageBuffer);
if (sendDelayMilliseconds > 0)
{
await Task.Delay((int)sendDelayMilliseconds);
}
}
progress.Report(new MidiSysExStatusReport()
{
Stage = MidiSysExStatusStages.Complete, BytesRead = bytesRead
});
return 0;
}
})));
}
