public MidiError Send (MidiEndpoint endpoint, MidiPacket [] packets)
{
if (endpoint == null)
throw new ArgumentNullException ("endpoint");
if (packets == null)
throw new ArgumentNullException ("packets");
var p = Midi.EncodePackets (packets);
var code = MIDISend (handle, endpoint.handle, p);
Marshal.FreeHGlobal (p);
return code;
}
internal static IntPtr EncodePackets (MidiPacket [] packets)
{
int size = 4;
for (int i = packets.Length; i > 0; i--){
int plen = packets [i - 1].Length;
plen = (plen + 3)&(~3);
size += 8 + 4 + plen;
}
IntPtr buffer = Marshal.AllocHGlobal (size);
Marshal.WriteInt32 (buffer, 0, packets.Length);
int dest = 4;
for (int i = 0; i < packets.Length; i++){
Marshal.WriteInt64 (buffer, dest, packets [i].TimeStamp);
dest += 8;
Marshal.WriteInt16 (buffer, dest, (short) packets [i].Length);
dest += 2;
Midi.memcpy ((IntPtr)((long)buffer + dest), packets [i].Bytes, packets [i].Length);
dest += (packets [i].Length+3)&(~3);
}
return buffer;
}
internal static MidiPacket [] ToPackets (IntPtr packetList)
{
int npackets = Marshal.ReadInt32 (packetList);
int p = 4;
var packets = new MidiPacket [npackets];
for (int i = 0; i < npackets; i++){
ushort len = (ushort) Marshal.ReadInt16 (p, 8);
packets [i] = new MidiPacket (Marshal.ReadInt64 (packetList, p), len, (IntPtr)((long)packetList + 10));
p += 10 + len;
}
return packets;
}
public MidiError Received (MidiPacket [] packets)
{
if (packets == null)
throw new ArgumentNullException ("packets");
var block = Midi.EncodePackets (packets);
var code = MIDIReceived (handle, block);
Marshal.FreeHGlobal (block);
return code;
}
public void TransmitMidiData(MidiEndpoint endpoint, MidiMessage msg)
{
var packages = new MidiPacket[] { msg.ToMidiPacket () };
outputPort.Send (endpoint, packages);
}
internal static MidiPacket [] ToPackets (IntPtr packetList)
{
int npackets = Marshal.ReadInt32 (packetList);
int p = 4;
var packets = new MidiPacket [npackets];
for (int i = 0; i < npackets; i++){
ushort len = (ushort) Marshal.ReadInt16 (packetList, p+8);
packets [i] = new MidiPacket (Marshal.ReadInt64 (packetList, p), len, (IntPtr)((long)packetList + p + 10));
#if !MONOMAC
// MIDIPacket must be 4-byte aligned for ARM
if (isDevice)
p += (((10 + len) + 3) & ~3);
else
#endif
p += 10 + len;
}
return packets;
}
public void SendMidiMessage(MidiMessage msg)
{
var packages = new MidiPacket[] { msg.ToMidiPacket () };
//endpoint.Received (packages);
this.outputPort.Send (endpoint, packages);
}
