public Note(SPCCommand command)
{
this.Command = command;
this.Octave = 6;
this.Percussive = false;
this.Sample = 0;
}
// constructors
public Note(SPCCommand command, int octave, bool percussive, int sample)
{
this.Command = command;
this.Octave = percussive ? 5 : octave;
this.Percussive = percussive;
this.Sample = sample;
}
private void RepeatLoop(int c, ref int i, int start, int count, ref int octave, ref bool percussive, ref int sample)
{
int end = i;
int thisOctave = octave;
while (count > 0 && i < channels[c].Count)
{
SPCCommand ssc = channels[c][i++];
// if at last repeat, and first section begins, skip the rest
if (ssc.Opcode == 0xD6 && count == 1)
{
while (i < channels[c].Count && i < end)
{
i++;
}
break;
}
switch (ssc.Opcode)
{
case 0xC4: thisOctave++; break;
case 0xC5: thisOctave--; break;
case 0xC6: thisOctave = ssc.Param1; break;
case 0xD4:
RepeatLoop(c, ref i, i, ssc.Param1, ref thisOctave, ref percussive, ref sample);
break;
case 0xD5:
end = i;
count--;
if (count > 0)
{
i = start;
thisOctave = octave;
}
break;
case 0xD6: break;
case 0xDE: sample = ssc.Param1; goto default;
case 0xEE: percussive = true; goto default;
case 0xEF: percussive = false; goto default;
default:
if (ssc.Opcode < 0xC4 || ssc.Opcode == 0xD7 || ssc.Opcode == 0xDE || ssc.Opcode == 0xEE || ssc.Opcode == 0xEF)
{
notes[c].Add(new Note(ssc, thisOctave, percussive, sample));
}
break;
}
}
octave = thisOctave;
}
// notation functions
public override void CreateNotes()
{
notes = new List <Note> [8];
for (int c = 0; c < notes.Length; c++)
{
if (channels[c] == null)
{
continue;
}
notes[c] = new List <Note>();
int i = 0;
int thisOctave = 6;
int sample = 0;
bool percussive = false;
while (i < channels[c].Count)
{
SPCCommand ssc = channels[c][i++];
switch (ssc.Opcode)
{
case 0xC4: thisOctave++; break;
case 0xC5: thisOctave--; break;
case 0xC6: thisOctave = ssc.Param1; break;
case 0xD4:
RepeatLoop(c, ref i, i, ssc.Param1, ref thisOctave, ref percussive, ref sample);
break;
case 0xD5: break;
case 0xDE: sample = ssc.Param1; goto default;
case 0xEE: percussive = true; goto default;
case 0xEF: percussive = false; goto default;
default:
if (ssc.Opcode < 0xC4 || ssc.Opcode == 0xD7 || ssc.Opcode == 0xDE || ssc.Opcode == 0xEE || ssc.Opcode == 0xEF)
{
notes[c].Add(new Note(ssc, thisOctave, percussive, sample));
}
break;
}
}
}
}
private void DecompToMMLLoop(ref List <SPCCommand>[] commands, NativeSPC nativeFormat, int c, ref int i,
int start, int count, bool nested, ref int octave, ref bool percussive, ref int sample)
{
int end = i;
int thisOctave = octave;
while (count > 0 && i < channels[c].Count)
{
int maxOctave = 6;
if (nativeFormat == NativeSPC.SMWLevel ||
nativeFormat == NativeSPC.SMWOverworld)
{
maxOctave = Lists.SMWOctaveLimits[Lists.SMRPGtoSMWSamples[sample]];
}
SPCCommand ssc = channels[c][i++].Copy();
// if at last repeat, and first section begins, skip the rest
if (ssc.Opcode == 0xD6 && count == 1)
{
while (i < channels[c].Count && i < end)
{
i++;
}
break;
}
switch (ssc.Opcode)
{
case 0xC4: thisOctave++;
if (thisOctave > maxOctave)
{
thisOctave = maxOctave;
}
else
{
goto default;
}
break;
case 0xC5: thisOctave--;
if (thisOctave < 1)
{
thisOctave = 1;
}
else
{
goto default;
}
break;
case 0xC6:
if (ssc.Param1 < 1)
{
ssc.Param1 = 1;
}
if (ssc.Param1 > maxOctave)
{
ssc.Param1 = (byte)maxOctave;
}
thisOctave = ssc.Param1;
goto default;
case 0xD4:
commands[c].Add(new SPCCommand(new byte[] { 0xC6, (byte)thisOctave }, this, c));
DecompToMMLLoop(ref commands, nativeFormat, c, ref i, i, ssc.Param1, true, ref thisOctave, ref percussive, ref sample);
break;
case 0xD5:
end = i;
count--;
if (nested && count > 0)
{
i = start;
thisOctave = octave;
}
else if (!nested)
{
commands[c].Add(ssc);
octave = thisOctave;
return;
}
break;
case 0xD6: break;
case 0xDE: sample = ssc.Param1; goto default;
case 0xEE: percussive = true; goto default;
case 0xEF: percussive = false; goto default;
default:
thisOctave = Math.Max(1, Math.Min(6, thisOctave));
commands[c].Add(ssc); break;
}
}
octave = thisOctave;
}
// conversion functions
public List <SPCCommand>[] DecompToMML(NativeSPC nativeFormat)
{
List <SPCCommand>[] commands = new List <SPCCommand> [8];
for (int c = 0; c < commands.Length; c++)
{
if (channels[c] == null)
{
continue;
}
commands[c] = new List <SPCCommand>();
int i = 0;
int thisOctave = 6;
int sample = 0;
bool percussive = false;
while (i < channels[c].Count)
{
int maxOctave = 6;
if (nativeFormat == NativeSPC.SMWLevel ||
nativeFormat == NativeSPC.SMWOverworld)
{
maxOctave = Lists.SMWOctaveLimits[Lists.SMRPGtoSMWSamples[sample]];
}
SPCCommand ssc = channels[c][i++].Copy();
switch (ssc.Opcode)
{
case 0xC4: thisOctave++;
if (thisOctave > maxOctave)
{
thisOctave = maxOctave;
}
else
{
goto default;
}
break;
case 0xC5: thisOctave--;
if (thisOctave < 1)
{
thisOctave = 1;
}
else
{
goto default;
}
break;
case 0xC6:
if (ssc.Param1 < 1)
{
ssc.Param1 = 1;
}
if (ssc.Param1 > maxOctave)
{
ssc.Param1 = (byte)maxOctave;
}
thisOctave = ssc.Param1;
goto default;
case 0xD4:
//commands[c].Add(ssc);
commands[c].Add(new SPCCommand(new byte[] { 0xC6, (byte)thisOctave }, this, c));
DecompToMMLLoop(ref commands, nativeFormat, c, ref i, i, ssc.Param1, false, ref thisOctave, ref percussive, ref sample);
break;
case 0xD5: break;
case 0xDE: sample = ssc.Param1; goto default;
case 0xEE: percussive = true; goto default;
case 0xEF: percussive = false; goto default;
default:
thisOctave = Math.Max(1, Math.Min(6, thisOctave));
commands[c].Add(ssc); break;
}
}
}
return(commands);
}
// class functions
public int Length()
{
int length = 0;
// first make sure each channel ends with a termination command
for (int i = 0; i < 2; i++)
{
if (channels[i] != null && channels[i].Count > 0)
{
SPCCommand lastSSC = channels[i][channels[i].Count - 1];
if (lastSSC.Opcode != 0xD0 && lastSSC.Opcode != 0xCD && lastSSC.Opcode != 0xCE)
{
length++;
}
}
}
//
int channelSize1 = 0;
int channelSize2 = 0;
if (channels[0] != null && activeChannels[0])
{
foreach (SPCCommand ssc in channels[0])
{
channelSize1 += ssc.Length;
}
}
if (channels[1] != null && activeChannels[1])
{
foreach (SPCCommand ssc in channels[1])
{
channelSize2 += ssc.Length;
}
}
//
bool channel2in1 = true;
if (channels[0] != null && channels[1] != null &&
activeChannels[0] && activeChannels[1] &&
channelSize2 <= channelSize1)
{
for (int a = channels[0].Count - 1, b = channels[1].Count - 1; a >= 0 && b >= 0; a--, b--)
{
if (!Bits.Compare(channels[0][a].CommandData, channels[1][b].CommandData))
{
channel2in1 = false;
}
}
}
else
{
channel2in1 = false;
}
//
if (channel2in1)
{
length += channelSize1;
}
else
{
length += channelSize1 + channelSize2;
}
return(length);
}
public void Assemble(ref int offset)
{
// first make sure each channel ends with a termination command
for (int i = 0; i < 2; i++)
{
if (channels[i] != null && channels[i].Count > 0)
{
SPCCommand lastSSC = channels[i][channels[i].Count - 1];
if (lastSSC.Opcode != 0xD0 && lastSSC.Opcode != 0xCD && lastSSC.Opcode != 0xCE)
{
channels[i].Add(new SPCCommand(new byte[] { 0xD0 }, this, 0));
}
}
}
//
int channelSize1 = 0;
int channelSize2 = 0;
if (channels[0] != null && activeChannels[0])
{
foreach (SPCCommand ssc in channels[0])
{
channelSize1 += ssc.Length;
}
}
if (channels[1] != null && activeChannels[1])
{
foreach (SPCCommand ssc in channels[1])
{
channelSize2 += ssc.Length;
}
}
//
int offsetStart1 = offset;
int offsetStart2 = offset + channelSize1;
if (channels[0] == null || !activeChannels[0])
{
offsetStart1 = 0;
}
if (channels[1] == null || !activeChannels[1])
{
offsetStart2 = 0;
}
//
bool channel2in1 = true;
if (offsetStart1 != 0 && offsetStart2 != 0 && channelSize2 <= channelSize1)
{
for (int a = channels[0].Count - 1, b = channels[1].Count - 1; a >= 0 && b >= 0; a--, b--)
{
if (!Bits.Compare(channels[0][a].CommandData, channels[1][b].CommandData))
{
channel2in1 = false;
}
}
}
else
{
channel2in1 = false;
}
if (channel2in1)
{
offsetStart2 -= channelSize2;
}
//
if (type == 0)
{
if (offsetStart1 == 0)
{
Bits.SetShort(rom, index * 4 + 0x042826, 0);
}
else
{
Bits.SetShort(rom, index * 4 + 0x042826, offsetStart1 - 0x042C26 + 0x3400);
}
if (offsetStart2 == 0)
{
Bits.SetShort(rom, index * 4 + 0x042826 + 2, 0);
}
else
{
Bits.SetShort(rom, index * 4 + 0x042826 + 2, offsetStart2 - 0x042C26 + 0x3400);
}
}
else
{
if (offsetStart1 == 0)
{
Bits.SetShort(rom, index * 4 + 0x043E26, 0);
}
else
{
Bits.SetShort(rom, index * 4 + 0x043E26, offsetStart1 - 0x044226 + 0x3400);
}
if (offsetStart2 == 0)
{
Bits.SetShort(rom, index * 4 + 0x043E26 + 2, 0);
}
else
{
Bits.SetShort(rom, index * 4 + 0x043E26 + 2, offsetStart2 - 0x044226 + 0x3400);
}
}
if (channels[0] != null && activeChannels[0])
{
foreach (SPCCommand ssc in channels[0])
{
Bits.SetBytes(rom, offsetStart1, ssc.CommandData);
offsetStart1 += ssc.Length;
}
}
if (channels[1] != null && activeChannels[1])
{
foreach (SPCCommand ssc in channels[1])
{
Bits.SetBytes(rom, offsetStart2, ssc.CommandData);
offsetStart2 += ssc.Length;
}
}
if (channel2in1)
{
offset += channelSize1;
}
else
{
offset += channelSize1 + channelSize2;
}
}