private void SetSingleMidiChordSlider(ChordSliderType chordSliderType, int channel, byte value)
{
MidiSliderTime midiSliderTime = null;
switch (chordSliderType)
{
case ChordSliderType.Pitchwheel:
midiSliderTime =
new MidiSliderTime(new PitchWheel(channel, value, ControlContinuation.NoChange), 0);
break;
case ChordSliderType.Pan:
midiSliderTime =
new MidiSliderTime(new Pan(channel, value, ControlContinuation.NoChange), 0);
break;
case ChordSliderType.ModulationWheel:
midiSliderTime =
new MidiSliderTime(new ModulationWheel(channel, value, ControlContinuation.NoChange), 0);
break;
case ChordSliderType.Expression:
midiSliderTime =
new MidiSliderTime(new Expression(channel, value, ControlContinuation.NoChange), 0);
break;
default:
break;
}
if (midiSliderTime != null)
{
MidiSliderTimes.Add(midiSliderTime);
}
}
public Tenuto(int channel, byte channelExpressionState, int noteDurationMilliseconds)
: base()
{
int tenutoDuration = 0;
if (noteDurationMilliseconds > 1000)
{
tenutoDuration = noteDurationMilliseconds - 200;
}
else
{
tenutoDuration = noteDurationMilliseconds * 8 / 10;
}
int crescDuration = tenutoDuration / 2;
int msPosition = 0;
byte expression = channelExpressionState; // initial value for tenuto
byte maxExpression = MidiByte((int)(expression * 1.3f));
SetMidiChordSlider(ChordSliderType.Expression, channel, msPosition, crescDuration, expression, maxExpression);
// fix expression for the rest of the tenuto
MidiSliderTime eTe = new MidiSliderTime(
new Expression(channel, maxExpression, ControlContinuation.NoChange), tenutoDuration - crescDuration);
MidiSliderTimes.Add(eTe);
// set expression to zero
MidiSliderTime eTz = new MidiSliderTime(
new Expression(channel, 0, ControlContinuation.NoChange), 0);
MidiSliderTimes.Add(eTz);
}
/// <summary>
/// Creates MidiSliderTime objects and adds them to MidiSliderTimes list so as to create a slide from
/// currentValue to endValue from msStartPosition up to (but not including) msEndPosition.
/// </summary>
protected void SetMidiChordSlider(ChordSliderType chordSliderType, int channel, int currentMsPosition, int endMsPosition,
byte currentValue, byte endValue)
{
Debug.Assert(endMsPosition >= currentMsPosition);
float slideValueDelta = 0f;
float slideDuration = endMsPosition - currentMsPosition;
float floatCurrentValue = (float)currentValue;
float floatEndValue = (float)endValue;
if (slideDuration != 0)
{
slideValueDelta = (floatEndValue - floatCurrentValue) / (slideDuration / _defaultSleepTime);
}
do
{
int sleepTime = endMsPosition - currentMsPosition;
sleepTime = (sleepTime > _defaultSleepTime) ? _defaultSleepTime : sleepTime;
MidiSliderTime midiSliderTime = null;
switch (chordSliderType)
{
case ChordSliderType.Pitchwheel:
midiSliderTime =
new MidiSliderTime(new PitchWheel(channel, (byte)floatCurrentValue, ControlContinuation.NoChange), sleepTime);
break;
case ChordSliderType.Pan:
midiSliderTime =
new MidiSliderTime(new Pan(channel, (byte)floatCurrentValue, ControlContinuation.NoChange), sleepTime);
break;
case ChordSliderType.ModulationWheel:
midiSliderTime =
new MidiSliderTime(new ModulationWheel(channel, (byte)floatCurrentValue, ControlContinuation.NoChange), sleepTime);
break;
case ChordSliderType.Expression:
midiSliderTime =
new MidiSliderTime(new Expression(channel, (byte)floatCurrentValue, ControlContinuation.NoChange), sleepTime);
break;
default:
break;
}
if (midiSliderTime == null)
{
break;
}
MidiSliderTimes.Add(midiSliderTime);
currentMsPosition += sleepTime;
floatCurrentValue += slideValueDelta;
} while(currentMsPosition < endMsPosition);
}
public HardStaccato(int channel, byte channelExpressionState, int noteDurationMilliseconds)
: base()
{
int hardStaccatoDuration = noteDurationMilliseconds / 2;
hardStaccatoDuration = (hardStaccatoDuration > 900) ? 900 : hardStaccatoDuration;
// set expression to 100 for hardStaccatoDuration
MidiSliderTime eT = new MidiSliderTime(
new Expression(channel, 127, ControlContinuation.NoChange), hardStaccatoDuration);
MidiSliderTimes.Add(eT);
// set expression to zero
MidiSliderTime eTz = new MidiSliderTime(
new Expression(channel, 0, ControlContinuation.NoChange), 0);
MidiSliderTimes.Add(eTz);
}
public StrongAccent(int channel, byte channelExpressionState, int noteDurationMilliseconds)
: base()
{
int accentDuration = noteDurationMilliseconds / 3;
accentDuration = (accentDuration > 900) ? 900 : accentDuration;
int loudDuration = accentDuration / 2;
// set expression to maximum for loudDuration
byte expression = 127; // initial value for accent
MidiSliderTime eTz = new MidiSliderTime(
new Expression(channel, expression, ControlContinuation.NoChange), loudDuration);
MidiSliderTimes.Add(eTz);
int msPosition = loudDuration;
int dimEndTime = msPosition * 2;
byte sustainExpr = MidiByte((channelExpressionState + 127) / 2);
SetMidiChordSlider(ChordSliderType.Expression, channel, msPosition, dimEndTime, expression, sustainExpr);
SetMidiChordSlider(ChordSliderType.Expression, channel, dimEndTime, noteDurationMilliseconds, sustainExpr, channelExpressionState);
}