public void AddProperties()
{
firstPropIdx = props.PropertyCount;
if (song.UsesFamiTrackerTempo)
{
if (patternIdx < 0)
{
famitrackerTempoPropIdx = props.AddNumericUpDown("Tempo :", song.FamitrackerTempo, 32, 255, TempoTooltip); // 0
famitrackerSpeedPropIdx = props.AddNumericUpDown("Speed :", song.FamitrackerSpeed, 1, 31, SpeedTooltip); // 1
}
var notesPerBeat = patternIdx < 0 ? song.BeatLength : song.GetPatternBeatLength(patternIdx);
var notesPerPattern = patternIdx < 0 ? song.PatternLength : song.GetPatternLength(patternIdx);
var bpm = Song.ComputeFamiTrackerBPM(song.Project.PalMode, song.FamitrackerSpeed, song.FamitrackerTempo, notesPerBeat);
notesPerBeatPropIdx = props.AddNumericUpDown("Notes per Beat :", notesPerBeat, 1, 256, NotesPerBeatTooltip); // 2
notesPerPatternPropIdx = props.AddNumericUpDown("Notes per Pattern :", notesPerPattern, 1, Pattern.MaxLength, NotesPerPatternTooltip); // 3
bpmLabelPropIdx = props.AddLabel("BPM :", bpm.ToString("n1"), false, BPMTooltip); // 4
props.ShowWarnings = true;
UpdateWarnings();
}
else
{
var noteLength = (patternIdx < 0 ? song.NoteLength : song.GetPatternNoteLength(patternIdx));
var notesPerBeat = (patternIdx < 0 ? song.BeatLength : song.GetPatternBeatLength(patternIdx));
var notesPerPattern = (patternIdx < 0 ? song.PatternLength : song.GetPatternLength(patternIdx));
var groove = (patternIdx < 0 ? song.Groove : song.GetPatternGroove(patternIdx));
tempoList = FamiStudioTempoUtils.GetAvailableTempos(song.Project.PalMode, notesPerBeat / noteLength);
var tempoIndex = FamiStudioTempoUtils.FindTempoFromGroove(tempoList, groove);
Debug.Assert(tempoIndex >= 0);
tempoStrings = tempoList.Select(t => t.bpm.ToString("n1") + (t.groove.Length == 1 ? " *": "")).ToArray();
var grooveList = FamiStudioTempoUtils.GetAvailableGrooves(tempoList[tempoIndex].groove);
var grooveIndex = Array.FindIndex(grooveList, g => Utils.CompareArrays(g, groove) == 0);
Debug.Assert(grooveIndex >= 0);
grooveStrings = grooveList.Select(g => string.Join("-", g)).ToArray();
famistudioBpmPropIdx = props.AddDropDownList("BPM : ", tempoStrings, tempoStrings[tempoIndex], BPMTooltip); // 0
notesPerBeatPropIdx = props.AddNumericUpDown("Notes per Beat : ", notesPerBeat / noteLength, 1, 256, NotesPerBeatTooltip); // 1
notesPerPatternPropIdx = props.AddNumericUpDown("Notes per Pattern : ", notesPerPattern / noteLength, 1, Pattern.MaxLength / noteLength, NotesPerPatternTooltip); // 2
framesPerNotePropIdx = props.AddLabel("Frames per Note :", noteLength.ToString(), false, FramesPerNoteTooltip); // 3
props.ShowWarnings = true;
props.BeginAdvancedProperties();
groovePropIdx = props.AddDropDownList("Groove : ", grooveStrings, grooveStrings[grooveIndex], GrooveTooltip); // 4
groovePadPropIdx = props.AddDropDownList("Groove Padding : ", GroovePaddingType.Names, GroovePaddingType.Names[song.GroovePaddingMode], GroovePaddingTooltip); // 5
originalNoteLength = noteLength;
originalNotesPerBeat = notesPerBeat;
UpdateWarnings();
}
}
private void ResetFamiStudioTempo()
{
if (!famitrackerTempo)
{
var newGroove = song.GetPatternGroove(playLocation.PatternIndex);
var newGroovePadMode = song.GetPatternGroovePaddingMode(playLocation.PatternIndex);
FamiStudioTempoUtils.ValidateGroove(newGroove);
grooveIterator = new GrooveIterator(newGroove, newGroovePadMode);
tempoEnvelope = FamiStudioTempoUtils.GetTempoEnvelope(newGroove, newGroovePadMode, song.Project.PalMode);
tempoEnvelopeCounter = tempoEnvelope[0];
tempoEnvelopeIndex = 0;
}
}
private void SmoothFamiStudioScrolling(VideoFrameMetadata[] frames, Song song)
{
var patternIndices = new int[frames.Length];
var absoluteNoteIndices = new float[frames.Length];
// Keep copy of original pattern/notes.
for (int i = 0; i < frames.Length; i++)
{
patternIndices[i] = frames[i].playPattern;
absoluteNoteIndices[i] = song.GetPatternStartAbsoluteNoteIndex(frames[i].playPattern, (int)frames[i].playNote);
}
// Do moving average to smooth the movement.
for (int i = 0; i < frames.Length; i++)
{
var averageSize = (Utils.Max(song.GetPatternGroove(patternIndices[i])) + 1) / 2;
averageSize = Math.Min(averageSize, i);
averageSize = Math.Min(averageSize, absoluteNoteIndices.Length - i - 1);
var sum = 0.0f;
var cnt = 0;
for (int j = i - averageSize; j <= i + averageSize; j++)
{
if (j >= 0 && j < absoluteNoteIndices.Length)
{
sum += absoluteNoteIndices[j];
cnt++;
}
}
sum /= cnt;
frames[i].playPattern = song.PatternIndexFromAbsoluteNoteIndex((int)sum);
frames[i].playNote = sum - song.GetPatternStartAbsoluteNoteIndex(frames[i].playPattern);
}
}