private void CompatibilizeMMLLoop(ref List <Command>[] 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]];
}
Command 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 Command(new byte[] { 0xC6, (byte)thisOctave }, this, c));
CompatibilizeMMLLoop(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;
}
/// <summary>
/// Creates a command collection from this instance's command data
/// having greater compatibility with the universal MML format.
/// </summary>
/// <param name="nativeFormat"></param>
/// <returns></returns>
public List <Command>[] CompatibilizeMML(NativeSPC nativeFormat)
{
List <Command>[] commands = new List <Command> [8];
for (int c = 0; c < commands.Length; c++)
{
if (Channels[c] == null)
{
continue;
}
commands[c] = new List <Command>();
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]];
}
Command 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(new Command(new byte[] { 0xC6, (byte)thisOctave }, this, c));
CompatibilizeMMLLoop(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);
}
