SeeScore.PlayData.IPlayData GetMIDIPlayData()
{
if (midiPlayData_cache == null)
{
midiPlayData_cache = CreateMidiPlayData();
}
return(midiPlayData_cache);
}
private String GetMIDIFile()
{
if (midiPlayData_cache == null)
{
midiPlayData_cache = CreateMidiPlayData();
midiPlayData_cache.CreateMidiFile(midiFileName);
}
return(midiFileName);
}
private void StartPlayAt(int barIndex, bool countIn)
{
axWindowsMediaPlayer1.URL = GetMIDIFile();
axWindowsMediaPlayer1.Ctlcontrols.stop();
SeeScore.PlayData.IPlayData pd = GetMIDIPlayData();
int bar_ms = pd.durationUpToBar(barIndex);
axWindowsMediaPlayer1.Ctlcontrols.currentPosition = (double)bar_ms / 1000.0F;
DelayedStarter starter = new DelayedStarter(this, barIndex, countIn);
testingDelay = true;
mediaPlayerStartDelayTestStartTime = DateTime.Now;
postDelayTestStartHandler = starter.postDelayTestStartHandler;
axWindowsMediaPlayer1.Ctlcontrols.play();
}
SeeScore.PlayData.IPlayData CreateMidiPlayData()
{
SeeScore.PlayData.IPlayData pd = SeeScore.PlayData.PD.Create(score, new UTempo(this));
double rate = pd.HasDefinedTempo() ? pd.TempoAtStart().bpm : kDefaultTempoBPM; // use default 80 if no tempo defined in file
bpmLabel.Text = "" + rate.ToString("F0");
notifier = new SeeScore.Notifier(pd);
if (kUsingNoteCursor)
{
notifier.SetNoteHandler(new NoteHandler(this)); // note cursor
}
notifier.SetBarChangeHandler(new BarEventHandler(this)); // bar cursor
notifier.SetBeatHandler(new BeatHandler(this));
notifier.SetEndHandler(new EndHandler(this));
return(pd);
}
int PositionToBarIndex(double position_s)
{
int ms = 0;
int seqIndex = 0;
int pos_ms = (int)(position_s * 1000);
SeeScore.PlayData.IPlayData playData = GetMIDIPlayData();
foreach (SeeScore.PlayData.IBar bar in playData)
{
ms += bar.Duration();
if (ms >= pos_ms)
{
return(seqIndex);
}
++seqIndex;
}
return(seqIndex);
}
private void LoadData(byte[] data)
{
try
{
seeScoreView.ClearAwaitLayoutCompletion();// careful to await termination of layout thread if mid-layout
if (score != null)
{
score.Dispose();
score = null;
}
if (notifier != null)
{
notifier.Stop();
}
axWindowsMediaPlayer1.Ctlcontrols.stop();
axWindowsMediaPlayer1.URL = null;
SeeScore.LoadOptions loadOptions = new SeeScore.LoadOptions(SeeScore.K.Key, false, true);
score = SeeScore.SS.LoadXMLData(data, loadOptions);
SeeScore.LoadWarning[] warnings = score.GetLoadWarnings();
foreach (SeeScore.LoadWarning w in warnings)
{
System.Console.WriteLine(" error " + w.warning + " in " + w.element + " in part:" + w.partIndex + " bar:" + w.barIndex);
}
tempoSlider.Value = 100;
seeScoreView.SetScore(score, new AppNotifierImpl(this));
midiPlayData_cache = null;
this.zoomSlider.Value = 100;
// Create MIDI file for playing
midiFileName = loadedFile.Substring(0, openFileDialog1.FileName.Length - 4) + ".mid";
GetMIDIFile();
// Initialise the score follower
InitialiseScoreFollower(midiFileName);
}
catch (SeeScore.LoadException ex)
{
Console.WriteLine("failed to load file: " + ex.Message);
}
catch (SeeScore.ScoreException ex)
{
Console.WriteLine("Failed to create midi file " + ex.Message);
}
}
private void UpdateTempo(float tempoScaling)
{
if (score != null)
{
bool isPlaying = axWindowsMediaPlayer1.playState == WMPPlayState.wmppsPlaying;
if (isPlaying)
{
axWindowsMediaPlayer1.Ctlcontrols.stop();
notifier.Stop();
}
axWindowsMediaPlayer1.URL = null;
SeeScore.PlayData.IPlayData playData = GetMIDIPlayData();
double rate = (playData.HasDefinedTempo() ? playData.TempoAtStart().bpm : kDefaultTempoBPM) * tempoScaling;
bpmLabel.Text = "" + rate.ToString("F0");
playData.UpdateTempo();
playData.ScaleMidiFileTempo(GetMIDIFile(), tempoScaling);
if (isPlaying)
{
int barIndex = seeScoreView.CursorBarIndex();
StartPlayAt(barIndex, false);
}
}
}
// called after testing mediaplayer start delay. We start the notifier and the mediaplayer with compensation for its start delay
private void StartPlayerWithDelay(TimeSpan startDelay, int barIndex, bool countIn)
{
SeeScore.PlayData.IPlayData pd = GetMIDIPlayData();
SeeScore.PlayData.IBarEnumerator barIter = pd.GetBarEnumerator();
barIter.ChangeToBar(barIndex);
SeeScore.PlayData.IBar bar = barIter.CurrentBar();
DateTime mediaPlayerStartTime = DateTime.Now.AddMilliseconds(1000);
DateTime notifierStartTime = mediaPlayerStartTime;
if (countIn)
{
bar = bar.CreateCountIn();
mediaPlayerStartTime = notifierStartTime.AddMilliseconds(bar.Duration() - startDelay.TotalMilliseconds);
}
else
{
mediaPlayerStartTime = notifierStartTime.AddMilliseconds(-startDelay.TotalMilliseconds);
}
int bar_ms = pd.durationUpToBar(barIndex);
axWindowsMediaPlayer1.Ctlcontrols.currentPosition = (double)bar_ms / 1000.0F;
new PlayerStartDispatch(mediaPlayerStartTime, this);
notifier.StartAt(notifierStartTime, barIndex, countIn);// start count-in. MediaPlayer will be started after this
}
private void DisposeMIDI()
{
midiPlayData_cache = null;
}
