/// <inheritdoc />
public void AddTempo(int tick, int tempo)
{
// bpm -> microsecond per quarter note
var tempoInUsq = (60000000 / tempo);
var message = new MetaNumberEvent(tick,
0xFF,
(byte)MetaEventTypeEnum.Tempo,
tempoInUsq);
_midiFile.AddEvent(message);
}
internal static MidiFile JsObjectToMidiFile(dynamic midi)
{
var midi2 = new MidiFile();
midi2.Division = midi.Division;
FastList <dynamic> midiEvents = midi.Events;
foreach (var midiEvent in midiEvents)
{
int tick = midiEvent.Tick;
int message = midiEvent.Message;
MidiEvent midiEvent2;
switch (midiEvent.Type)
{
case "alphaTab.audio.synth.midi.event.SystemExclusiveEvent":
midiEvent2 = new SystemExclusiveEvent(tick, 0, 0, midiEvent.Data);
midiEvent2.Message = message;
break;
case "alphaTab.audio.synth.midi.event.MetaDataEvent":
midiEvent2 = new MetaDataEvent(tick, 0, 0, midiEvent.Data);
midiEvent2.Message = message;
break;
case "alphaTab.audio.synth.midi.event.MetaNumberEvent":
midiEvent2 = new MetaNumberEvent(tick, 0, 0, midiEvent.Value);
midiEvent2.Message = message;
break;
default:
midiEvent2 = new MidiEvent(tick, 0, 0, 0);
midiEvent2.Message = message;
break;
}
midi2.Events.Add(midiEvent2);
}
return(midi2);
}
internal static object MidiFileToJsObject(MidiFile midi)
{
var midi2 = Platform.Platform.NewObject();
midi2.Division = midi.Division;
var midiEvents = new FastList <object>();
midi2.Events = midiEvents;
foreach (var midiEvent in midi.Events)
{
var midiEvent2 = Platform.Platform.NewObject();
midiEvents.Add(midiEvent2);
midiEvent2.Type = Platform.Platform.GetTypeName(midiEvent);
midiEvent2.Tick = midiEvent.Tick;
midiEvent2.Message = midiEvent.Message;
switch (midiEvent2.Type)
{
case "alphaTab.audio.synth.midi.event.SystemExclusiveEvent":
SystemExclusiveEvent sysex = (SystemExclusiveEvent)midiEvent;
midiEvent2.Data = sysex.Data;
break;
case "alphaTab.audio.synth.midi.event.MetaDataEvent":
MetaDataEvent metadata = (MetaDataEvent)midiEvent;
midiEvent2.Data = metadata.Data;
break;
case "alphaTab.audio.synth.midi.event.MetaNumberEvent":
MetaNumberEvent metanumber = (MetaNumberEvent)midiEvent;
midiEvent2.Value = metanumber.Value;
break;
}
}
return(midi2);
}
