int TransposeNote(int direction, int data)
{
if (data < 0)
{
return(data);
}
int note = (int)VirtualKeyboard.GetNote(data) - 1;
if (note + 1 == ( int )VirtualKeyboard.Note.NoteOff)
{
return(data);
}
int octave = VirtualKeyboard.GetOctave(data);
int offset = note + direction;
if (offset > 11)
{
octave++;
}
if (offset < 0)
{
octave--;
offset = offset + 12;
}
offset = System.Math.Abs(offset) % 12 + 1;
return(VirtualKeyboard.EncodeNoteInfo(offset, octave));
}
public void OnIrqCallback()
{
if (!m_IsPlaying)
{
return;
}
m_Counter++;
if (m_Counter >= playbackSpeed)
{
if (m_IsStopping)
{
m_IsPlaying = false;
m_IsStopping = true;
return;
}
m_Counter = 0;
int patternBreakTarget = -1;
for (int i = 0; i < data.channels; i++)
{
m_PlayingPattern = m_CurrentPattern;
SongData.ColumnEntry col = data.GetPatternColumn(m_CurrentPattern, i);
if (col == null)
{
//m_Instruments [ i ].note = VirtualKeyboard.Note.NoteOff;
//psg.SetAttenuation ( i, 0 );
continue;
}
if (mute[i])
{
m_Instruments[i].note = VirtualKeyboard.Note.NoteOff;
}
else
{
int volume = col.data[m_CurrentLine, 2];
if (volume >= 0)
{
m_Instruments[i].relativeVolume = volume;
}
if (col.data[m_CurrentLine, 0] > 0)
{
VirtualKeyboard.Note note = VirtualKeyboard.GetNote(col.data[m_CurrentLine, 0]);
if (note == VirtualKeyboard.Note.NoteOff)
{
m_Instruments[i].note = VirtualKeyboard.Note.NoteOff;
psg.SetAttenuation(i, 0);
}
else if (col.data[m_CurrentLine, 1] < instruments.presets.Length)
{
m_PrevInstruments[i] = m_Instruments[i];
m_Instruments[i] = instruments.presets[col.data[m_CurrentLine, 1]];
m_Instruments[i].relativeVolume = volume >= 0 ? volume : 0xF;
m_Instruments[i].note = note;
m_Instruments[i].noteOffset = data.transposeTable[m_CurrentPattern][i];
m_Instruments[i].octave = VirtualKeyboard.GetOctave(col.data[m_CurrentLine, 0]);
}
}
}
int fxVal = col.data [m_CurrentLine, 4];
if (fxVal >= 0)
{
switch (col.data [m_CurrentLine, 3])
{
//arpreggio
case 0x00:
if (fxVal == 0)
{
m_Instruments [i].arpeggio = new int [0];
}
else
{
int hiArp, loArp;
SplitByte(fxVal, out hiArp, out loArp);
m_Instruments [i].arpeggio = new int [3] {
0, loArp, hiArp
};
m_Instruments[i].arpLoopPoint = 3;
}
break;
case 0x01:
m_Instruments [i].portamentoSpeed = fxVal;
break;
case 0x02:
m_Instruments [i].portamentoSpeed = -fxVal;
break;
case 0x03:
if (m_Instruments [i].samplePlayback)
{
m_Instruments [i].pulseWidth = m_PrevInstruments [i].pulseWidth;
}
m_Instruments [i].SetAutoPortamento(m_PrevInstruments[i], fxVal);
break;
case 0x04:
int speed, depth;
SplitByte(fxVal, out depth, out speed);
m_Instruments [i].vibratoDepth = depth;
m_Instruments [i].vibratoSpeed = speed;
break;
case 0x08:
int left, right;
SplitByte(fxVal, out right, out left);
psg.SetStereo(i, left != 0, right != 0);
break;
case 0x0B:
//loop point
break;
case 0x0D:
if (m_CurrentPattern >= data.numPatterns - 1)
{
break;
}
if (fxVal < data.patternLength)
{
m_PatternBreakTarget = fxVal;
}
else
{
m_PatternBreakTarget = 0;
}
patternBreakTarget = m_PatternBreakTarget;
break;
case 0x0F:
playbackSpeed = fxVal;
break;
case 0x10:
m_Instruments [i].noteDelay = fxVal;
break;
case 0x20:
int mode, fb;
SplitByte(fxVal, out mode, out fb);
int val = (mode << 1) | fb;
m_Instruments[i].noiseMode = new int[] { val };
break;
case 0x40:
m_Instruments [i].pulseWidthPanSpeed = fxVal;
break;
case 0xFF:
psg.PSGDirectWrite(fxVal);
break;
}
}
}
m_MoveLine++;
if (patternBreakTarget >= 0)
{
m_CurrentLine = patternBreakTarget;
m_CurrentPattern++;
}
else
{
m_CurrentLine++;
if (m_CurrentLine >= data.patternLength)
{
m_CurrentLine = 0;
m_CurrentPattern++;
if (m_CurrentPattern >= data.numPatterns)
{
m_CurrentPattern = m_PatternLoop;
if (m_Loops >= 0)
{
m_IsStopping = m_Loops == 0;
m_Loops--;
}
}
}
}
}
for (int i = 0; i < data.channels; i++)
{
if (m_Instruments [i].noteDelay > 0)
{
m_Instruments [i].noteDelay--;
m_PrevInstruments [i].UpdatePSG(psg, i);
m_ChnAttenuation[i] = m_PrevInstruments[i].GetCurrentVol();
}
else
{
m_Instruments [i].UpdatePSG(psg, i);
m_ChnAttenuation[i] = m_Instruments[i].GetCurrentVol();
}
if (mute[i])
{
m_ChnAttenuation[i] = 0;
}
}
}