/// <summary>
///
/// </summary>
/// <param name="notes"></param>
/// <param name="deviceNoteUpperBound"></param>
/// <param name="deviceNoteLowerBound"></param>
/// <returns>A boolean value indicating if the transposition was successful</returns>
public static TransposeReturnStatus Transpose(Note[] notes, int deviceNoteUpperBound, int deviceNoteLowerBound)
{
int highestNote = int.MaxValue;
int lowestNote = int.MinValue;
Offset = 0;
foreach (Note note in notes)
{
if (note.NoteNumber < highestNote)
{
highestNote = note.NoteNumber;
}
if (note.NoteNumber > lowestNote)
{
lowestNote = note.NoteNumber;
}
}
//Console.WriteLine("[Transpose] highestNote={0}, lowestNote={1}", highestNote, lowestNote);
// we don't need to transpose
if (highestNote >= deviceNoteUpperBound && lowestNote <= deviceNoteLowerBound)
{
return TransposeReturnStatus.AllNotesAlreadyInRange;
}
if ((lowestNote - highestNote) > (deviceNoteLowerBound - deviceNoteUpperBound))
{
return TransposeReturnStatus.TransposeUnsuccessful;
}
if (Math.Abs(deviceNoteUpperBound - highestNote) < 12)
{
return TransposeReturnStatus.TransposeUnsuccessful;
}
// get minimum offset required to have the highest note be in range
int offsetTry = 12*((deviceNoteUpperBound - highestNote + 11)/12);
if (lowestNote + offsetTry > deviceNoteLowerBound)
{
return TransposeReturnStatus.TransposeUnsuccessful;
}
Offset = offsetTry;
foreach (Note note in notes)
{
note.NoteNumber += Offset;
Debug.Assert(note.NoteNumber >= deviceNoteUpperBound && note.NoteNumber <= deviceNoteLowerBound);
}
return TransposeReturnStatus.TransposeSuccessful;
}
public void AllocateNotes(Note[] notes)
{
foreach (Note note in notes)
{
AddNote(note);
}
allocSingleArr = new GuitarNote[notes.Length - NumDroppedNotes];
int j = 0;
for (int i = 0; i < alloc.Length; i++)
{
foreach (GuitarNote guitarNote in alloc[i])
{
allocSingleArr[j] = guitarNote;
j++;
}
}
Array.Sort(allocSingleArr);
}
private void AddNote_Helper(int stringNumber, int fretNumber, Note note)
{
int i = 0;
foreach (GuitarNote guitarNote in alloc[stringNumber])
{
if (note.BeginTime < guitarNote.BeginTime)
{
alloc[stringNumber].Insert(i, new GuitarNote(stringNumber, fretNumber, note));
break;
}
i++;
}
if (i == alloc[stringNumber].Count)
{
alloc[stringNumber].Add(new GuitarNote(stringNumber, fretNumber, note));
}
}
public GuitarNote(int stringNumber, int fretNumber, Note note)
: base(note.NoteNumber, note.BeginTime, note.EndTime)
{
StringNumber = stringNumber;
FretNumber = fretNumber;
}
private void AddNote(Note note)
{
bool success = false;
if (note.NoteNumber >= upperNoteBound && note.NoteNumber <= lowerNoteBound)
{
for (int i = 0; i < alloc.Length; i++)
{
if (guitar[i, 0] < note.NoteNumber && note.NoteNumber < guitar[i, 1] &&
IsFree(i, note.BeginTime, note.EndTime))
{
AddNote_Helper(i, note.NoteNumber - guitar[i, 0], note);
success = true;
break;
}
}
}
else
{
NumOutOfRangeNotes++;
}
if (!success)
{
// Note dropped.
NumDroppedNotes++;
}
}
