/// <summary>
/// Checks that the new msg is a noteOff and has the same channel as existing msgs.
/// </summary>
private void CheckMsg(MidiMsg msg)
{
M.Assert(IsNoteOffMsg(msg));
if (_msgs.Count > 0 && (_msgs[0].Channel != msg.Channel))
{
M.Assert(false);
}
}
private bool IsNoteOffMsg(MidiMsg msg)
{
int statusHighNibbble = msg.Status & 0xF0;
if (statusHighNibbble == M.CMD_NOTE_OFF_0x80 || (statusHighNibbble == M.CMD_NOTE_ON_0x90 && msg.Data2 == 0))
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// Checks that all messages are noteOffs and have the same channel.
/// </summary>
public void Add(MidiMsg msg)
{
CheckMsg(msg);
_msgs.Add(msg);
}
/// <summary>
/// Writes a single moment element which may contain
/// NoteOffs, bank, patch, pitchWheelDeviation, NoteOns.
/// Moritz never writes SysEx messages.
/// </summary>
public void WriteSVG(XmlWriter w, int channel, CarryMsgs carryMsgs)
{
w.WriteStartElement("moment");
w.WriteAttributeString("msDuration", MsDuration.ToString());
if (carryMsgs.Count > 0)
{
carryMsgs.WriteSVG(w);
carryMsgs.Clear();
}
if (carryMsgs.IsStartOfSwitches)
{
BankIndex = GetValue(BankIndex, 0);
PatchIndex = GetValue(PatchIndex, 0);
PitchWheelDeviation = GetValue(PitchWheelDeviation, 2);
carryMsgs.IsStartOfSwitches = false;
}
if ((BankIndex != null && BankIndex != carryMsgs.BankState) ||
(PatchIndex != null && PatchIndex != carryMsgs.PatchState) ||
(PitchWheelDeviation != null && PitchWheelDeviation != carryMsgs.PitchWheelDeviationState))
{
w.WriteStartElement("switches");
if (BankIndex != null && BankIndex != carryMsgs.BankState)
{
MidiMsg msg = new MidiMsg(M.CMD_CONTROL_CHANGE_0xB0 + channel, M.CTL_BANK_CHANGE_0, BankIndex);
msg.WriteSVG(w);
carryMsgs.BankState = (byte)BankIndex;
}
if (PatchIndex != null && PatchIndex != carryMsgs.PatchState)
{
MidiMsg msg = new MidiMsg(M.CMD_PATCH_CHANGE_0xC0 + channel, (int)PatchIndex, null);
msg.WriteSVG(w);
carryMsgs.PatchState = (byte)PatchIndex;
}
if (PitchWheelDeviation != null && PitchWheelDeviation != carryMsgs.PitchWheelDeviationState)
{
MidiMsg msg1 = new MidiMsg(M.CMD_CONTROL_CHANGE_0xB0 + channel, M.CTL_REGISTEREDPARAMETER_COARSE_101, M.SELECT_PITCHBEND_RANGE_0);
msg1.WriteSVG(w);
MidiMsg msg2 = new MidiMsg(M.CMD_CONTROL_CHANGE_0xB0 + channel, M.CTL_DATAENTRY_COARSE_6, PitchWheelDeviation);
msg2.WriteSVG(w);
carryMsgs.PitchWheelDeviationState = (byte)PitchWheelDeviation;
}
w.WriteEndElement(); // switches
}
if (Pitches != null)
{
M.Assert(Velocities != null && Pitches.Count == Velocities.Count);
w.WriteStartElement("noteOns");
int status = M.CMD_NOTE_ON_0x90 + channel; // NoteOn
for (int i = 0; i < Pitches.Count; ++i)
{
MidiMsg msg = new MidiMsg(status, Pitches[i], Velocities[i]);
msg.WriteSVG(w);
}
w.WriteEndElement(); // end of noteOns
if (HasChordOff)
{
status = M.CMD_NOTE_OFF_0x80 + channel;
int data2 = M.DEFAULT_NOTEOFF_VELOCITY_64;
foreach (byte pitch in Pitches)
{
carryMsgs.Add(new MidiMsg(status, pitch, data2));
}
}
}
w.WriteEndElement(); // end of moment
}