public M4AWrappedSample(int offset)
{
this.offset = offset;
if (offset == 0 || !ROM.IsValidRomOffset(offset))
{
goto fail;
}
sample = ROM.Instance.Reader.ReadObject <M4AMLSSSample>(offset);
if (!ROM.IsValidRomOffset(sample.Length + (offset + 0x10)))
{
goto fail;
}
gSample = new WrappedSample(sample.DoesLoop == 0x40000000, sample.LoopPoint, sample.Length, sample.Frequency >> 10, false);
gSample.SetOffset(offset + 0x10);
return;
fail:
sample = new M4AMLSSSample();
gSample = null;
Console.WriteLine("Error loading instrument at 0x{0:X}.", offset);
}
public void Init(byte ownerIdx, Note note, ADSR adsr, WrappedSample sample, byte vol, sbyte pan, int pitch, bool bFixed)
{
State = ADSRState.Initializing;
pos = 0; processStep = 0; interPos = 0;
OwnerIdx = ownerIdx;
Note = note;
this.adsr = adsr;
this.sample = sample;
this.bFixed = bFixed;
bGoldenSun = (ROM.Instance.Game.Engine.HasGoldenSunSynths && sample.bLoop && sample.LoopPoint == 0 && sample.Length == 0);
if (bGoldenSun)
{
gsPSG = ROM.Instance.Reader.ReadObject <GoldenSunPSG>(sample.GetOffset());
}
SetVolume(vol, pan);
SetPitch(pitch);
}
public MLSSWrappedSample(int offset)
{
sample = ROM.Instance.Reader.ReadObject <M4AMLSSSample>(offset);
gSample = new WrappedSample(sample.DoesLoop == 0x40000000, sample.LoopPoint, sample.Length, sample.Frequency >> 10, true);
SetOffset(offset);
}
public DirectSoundChannel NewDSNote(byte owner, ADSR env, Note note, byte vol, sbyte pan, int pitch, bool bFixed, WrappedSample sample, Track[] tracks)
{
DirectSoundChannel nChn = null;
var byOwner = dsChannels.OrderByDescending(c => c.OwnerIdx);
foreach (var i in byOwner) // Find free
{
if (i.State == ADSRState.Dead || i.OwnerIdx == 0xFF)
{
nChn = i;
break;
}
}
if (nChn == null) // Find releasing
{
foreach (var i in byOwner)
{
if (i.State == ADSRState.Releasing)
{
nChn = i;
break;
}
}
}
if (nChn == null) // Find prioritized
{
foreach (var i in byOwner)
{
if (owner >= 16 || tracks[owner].Priority > tracks[i.OwnerIdx].Priority)
{
nChn = i;
break;
}
}
}
if (nChn == null) // None available
{
var lowest = byOwner.First(); // Kill lowest track's instrument if the track is lower than this one
if (lowest.OwnerIdx >= owner)
{
nChn = lowest;
}
}
if (nChn != null) // Could still be null from the above if
{
nChn.Init(owner, note, env, sample, vol, pan, pitch, bFixed);
}
return(nChn);
}
public Channel PlayNote(Track track, sbyte note, byte velocity, int duration)
{
int shift = note + track.KeyShift;
note = (sbyte)(shift.Clamp(0, 0x7F));
track.PrevNote = note;
if (!track.Ready)
{
return(null);
}
var owner = track.Index;
WrappedVoice voice = null;
bool fromDrum = false;
try
{
voice = Song.VoiceTable.GetVoiceFromNote(track.Voice, note, out fromDrum);
}
catch
{
System.Console.WriteLine("Track {0} tried to play a bad note... Voice {1} Note {2}", owner, track.Voice, note);
return(null);
}
var aNote = new Note {
Duration = duration, Velocity = velocity, OriginalKey = note, Key = fromDrum ? voice.Voice.GetRootNote() : note
};
if (voice.Voice is M4AVoiceEntry m4a)
{
M4AVoiceType type = (M4AVoiceType)(m4a.Type & 0x7);
switch (type)
{
case M4AVoiceType.Direct:
bool bFixed = (m4a.Type & (int)M4AVoiceFlags.Fixed) == (int)M4AVoiceFlags.Fixed;
return(SoundMixer.Instance.NewDSNote(owner, m4a.ADSR, aNote,
track.GetVolume(), track.GetPan(), track.GetPitch(),
bFixed, ((M4AWrappedDirect)voice).Sample.GetSample(), tracks));
case M4AVoiceType.Square1:
case M4AVoiceType.Square2:
return(SoundMixer.Instance.NewGBNote(owner, m4a.ADSR, aNote,
track.GetVolume(), track.GetPan(), track.GetPitch(),
type, m4a.SquarePattern));
case M4AVoiceType.Wave:
return(SoundMixer.Instance.NewGBNote(owner, m4a.ADSR, aNote,
track.GetVolume(), track.GetPan(), track.GetPitch(),
type, m4a.Address - ROM.Pak));
case M4AVoiceType.Noise:
return(SoundMixer.Instance.NewGBNote(owner, m4a.ADSR, aNote,
track.GetVolume(), track.GetPan(), track.GetPitch(),
type, m4a.NoisePattern));
}
}
else if (voice.Voice is MLSSVoice mlssvoice)
{
MLSSVoiceEntry entry; bool bFixed = false; WrappedSample sample = null;
try
{
entry = mlssvoice.GetEntryFromNote(note);
bFixed = entry.IsFixedFrequency == 0x80;
sample = ((MLSSVoiceTable)Song.VoiceTable).Samples[entry.Sample].GetSample();
}
catch
{
System.Console.WriteLine("Track {0} tried to play a bad note... Voice {1} Note {2}", owner, track.Voice, note);
return(null);
}
if (sample != null)
{
return(SoundMixer.Instance.NewDSNote(owner, new ADSR {
A = 0xFF, S = 0xFF
}, aNote,
track.GetVolume(), track.GetPan(), track.GetPitch(),
bFixed, sample, tracks));
}
}
return(null);
}
