private void TruncateLongPatterns(Song song)
{
if (song.PatternLength > 256)
{
song.SetDefaultPatternLength(256);
}
// FamiTracker can only shorten patterns using skips.
// We allow patterns to be longer than the default, so we will truncate those.
for (int i = 0; i < song.Length; i++)
{
if (song.GetPatternLength(i) > song.PatternLength)
{
song.ClearPatternCustomSettings(i);
}
}
song.DeleteNotesPastMaxInstanceLength();
}
public Project Load(string filename, int songIndex, int duration, int patternLength, int startFrame, bool removeIntroSilence, bool reverseDpcm, bool preserveDpcmPad)
{
nsf = NsfOpen(filename);
if (nsf == null)
{
return(null);
}
var trackCount = NsfGetTrackCount(nsf);
if (songIndex < 0 || songIndex > trackCount)
{
return(null);
}
preserveDpcmPadding = preserveDpcmPad;
var palSource = (NsfIsPal(nsf) & 1) == 1;
var numFrames = duration * (palSource ? 50 : 60);
project = new Project();
project.Name = Marshal.PtrToStringAnsi(NsfGetTitle(nsf));
project.Author = Marshal.PtrToStringAnsi(NsfGetArtist(nsf));
project.Copyright = Marshal.PtrToStringAnsi(NsfGetCopyright(nsf));
project.PalMode = palSource;
switch (NsfGetExpansion(nsf))
{
case EXTSOUND_VRC6: project.SetExpansionAudio(ExpansionType.Vrc6); break;
case EXTSOUND_VRC7: project.SetExpansionAudio(ExpansionType.Vrc7); break;
case EXTSOUND_FDS: project.SetExpansionAudio(ExpansionType.Fds); break;
case EXTSOUND_MMC5: project.SetExpansionAudio(ExpansionType.Mmc5); break;
case EXTSOUND_N163: project.SetExpansionAudio(ExpansionType.N163, GetNumNamcoChannels(filename, songIndex, numFrames)); break;
case EXTSOUND_S5B: project.SetExpansionAudio(ExpansionType.S5B); break;
case 0: break;
default:
NsfClose(nsf); // Unsupported expansion combination.
return(null);
}
var songName = Marshal.PtrToStringAnsi(NsfGetTrackName(nsf, songIndex));
song = project.CreateSong(string.IsNullOrEmpty(songName) ? $"Song {songIndex + 1}" : songName);
channelStates = new ChannelState[song.Channels.Length];
NsfSetTrack(nsf, songIndex);
song.ResizeNotes(1, false);
song.SetDefaultPatternLength(patternLength);
for (int i = 0; i < song.Channels.Length; i++)
{
channelStates[i] = new ChannelState();
}
var foundFirstNote = !removeIntroSilence;
var p = 0;
var n = 0;
var f = startFrame;
for (int i = 0; i < numFrames; i++)
{
p = f / song.PatternLength;
n = f % song.PatternLength;
if (p >= Song.MaxLength - 1)
{
break;
}
var playCalled = 0;
do
{
playCalled = NsfRunFrame(nsf);
}while (playCalled == 0);
for (int c = 0; c < song.Channels.Length; c++)
{
foundFirstNote |= UpdateChannel(p, n, song.Channels[c], channelStates[c]);
}
if (foundFirstNote)
{
f++;
}
else
{
// Reset everything until we find our first note.
project.DeleteAllInstrument();
project.DeleteAllSamples();
for (int c = 0; c < song.Channels.Length; c++)
{
channelStates[c] = new ChannelState();
}
}
}
song.SetLength(p + 1);
NsfClose(nsf);
var factors = Utils.GetFactors(song.PatternLength, Song.MaxNoteLength);
if (factors.Length > 0)
{
var noteLen = factors[0];
// Look for a factor that generates a note length < 10 and gives a pattern length that is a multiple of 16.
foreach (var factor in factors)
{
if (factor <= 10)
{
noteLen = factor;
if (((song.PatternLength / noteLen) % 16) == 0)
{
break;
}
}
}
song.ResizeNotes(noteLen, false);
}
else
{
song.ResizeNotes(1, false);
}
song.SetSensibleBeatLength();
song.DeleteEmptyPatterns();
song.UpdatePatternStartNotes();
project.DeleteUnusedInstruments();
project.UpdateAllLastValidNotesAndVolume();
foreach (var sample in project.Samples)
{
sample.ReverseBits = reverseDpcm;
}
return(project);
}
public void ApplyAsync(bool custom, Action callback)
{
if (song.UsesFamiTrackerTempo)
{
if (patternIdx == -1)
{
if (famitrackerTempoPropIdx >= 0)
{
song.FamitrackerTempo = props.GetPropertyValue <int>(famitrackerTempoPropIdx);
song.FamitrackerSpeed = props.GetPropertyValue <int>(famitrackerSpeedPropIdx);
}
song.SetBeatLength(props.GetPropertyValue <int>(notesPerBeatPropIdx));
song.SetDefaultPatternLength(props.GetPropertyValue <int>(notesPerPatternPropIdx));
}
else
{
for (int i = minPatternIdx; i <= maxPatternIdx; i++)
{
var beatLength = props.GetPropertyValue <int>(notesPerBeatPropIdx);
var patternLength = props.GetPropertyValue <int>(notesPerPatternPropIdx);
if (custom)
{
song.SetPatternCustomSettings(i, patternLength, beatLength);
}
else
{
song.ClearPatternCustomSettings(i);
}
}
}
FinishApply(callback);
}
else
{
var tempoIndex = Array.IndexOf(tempoStrings, props.GetPropertyValue <string>(famistudioBpmPropIdx));
var tempoInfo = tempoList[tempoIndex];
var beatLength = props.GetPropertyValue <int>(notesPerBeatPropIdx);
var patternLength = props.GetPropertyValue <int>(notesPerPatternPropIdx);
var noteLength = Utils.Min(tempoInfo.groove);
var grooveIndex = Array.IndexOf(grooveStrings, props.GetPropertyValue <string>(groovePropIdx));
var groovePadMode = GroovePaddingType.GetValueForName(props.GetPropertyValue <string>(groovePadPropIdx));
var grooveList = FamiStudioTempoUtils.GetAvailableGrooves(tempoInfo.groove);
var groove = grooveList[grooveIndex];
props.UpdateIntegerRange(notesPerPatternPropIdx, 1, Pattern.MaxLength / noteLength);
props.SetLabelText(framesPerNotePropIdx, noteLength.ToString());
if (patternIdx == -1)
{
ShowConvertTempoDialogAsync(noteLength != originalNoteLength, (c) =>
{
song.ChangeFamiStudioTempoGroove(groove, c);
song.SetBeatLength(beatLength * song.NoteLength);
song.SetDefaultPatternLength(patternLength * song.NoteLength);
song.SetGroovePaddingMode(groovePadMode);
FinishApply(callback);
});
}
else
{
var actualNoteLength = song.NoteLength;
var actualPatternLength = song.PatternLength;
var actualBeatLength = song.BeatLength;
if (custom)
{
actualNoteLength = noteLength;
actualBeatLength = beatLength * noteLength;
actualPatternLength = patternLength * noteLength;
}
var patternsToResize = new List <int>();
for (int i = minPatternIdx; i <= maxPatternIdx; i++)
{
if (actualNoteLength != song.GetPatternNoteLength(patternIdx))
{
patternsToResize.Add(i);
}
}
ShowConvertTempoDialogAsync(patternsToResize.Count > 0, (c) =>
{
if (c)
{
foreach (var p in patternsToResize)
{
song.ResizePatternNotes(p, actualNoteLength);
}
}
for (int i = minPatternIdx; i <= maxPatternIdx; i++)
{
if (custom)
{
song.SetPatternCustomSettings(i, actualPatternLength, actualBeatLength, groove, groovePadMode);
}
else
{
song.ClearPatternCustomSettings(i);
}
}
FinishApply(callback);
});
}
}
}
public Project Load(string filename, int songIndex, int duration, int patternLength, int startFrame, bool removeIntroSilence)
{
nsf = NsfOpen(filename);
if (nsf == null)
{
return(null);
}
var numFrames = duration * (NsfIsPal(nsf) != 0 ? 50 : 60);
project = new Project();
project.Name = Marshal.PtrToStringAnsi(NsfGetTitle(nsf));
project.Author = Marshal.PtrToStringAnsi(NsfGetArtist(nsf));
project.Copyright = Marshal.PtrToStringAnsi(NsfGetCopyright(nsf));
switch (NsfGetExpansion(nsf))
{
case EXTSOUND_VRC6: project.SetExpansionAudio(Project.ExpansionVrc6); break;
case EXTSOUND_VRC7: project.SetExpansionAudio(Project.ExpansionVrc7); break;
case EXTSOUND_FDS: project.SetExpansionAudio(Project.ExpansionFds); break;
case EXTSOUND_MMC5: project.SetExpansionAudio(Project.ExpansionMmc5); break;
case EXTSOUND_N163: project.SetExpansionAudio(Project.ExpansionN163, GetNumNamcoChannels(filename, songIndex, numFrames)); break;
case EXTSOUND_S5B: project.SetExpansionAudio(Project.ExpansionS5B); break;
case 0: break;
default:
NsfClose(nsf); // Unsupported expansion combination.
return(null);
}
var songName = Marshal.PtrToStringAnsi(NsfGetTrackName(nsf, songIndex));
song = project.CreateSong(string.IsNullOrEmpty(songName) ? $"Song {songIndex + 1}" : songName);
channelStates = new ChannelState[song.Channels.Length];
NsfSetTrack(nsf, songIndex);
song.ResizeNotes(1, false);
song.SetDefaultPatternLength(patternLength);
for (int i = 0; i < song.Channels.Length; i++)
{
channelStates[i] = new ChannelState();
}
var foundFirstNote = !removeIntroSilence;
var p = 0;
var n = 0;
var f = startFrame;
for (int i = 0; i < numFrames; i++)
{
p = f / song.PatternLength;
n = f % song.PatternLength;
if (p >= Song.MaxLength - 1)
{
break;
}
var playCalled = 0;
do
{
playCalled = NsfRunFrame(nsf);
}while (playCalled == 0);
for (int c = 0; c < song.Channels.Length; c++)
{
foundFirstNote |= UpdateChannel(p, n, song.Channels[c], channelStates[c]);
}
if (foundFirstNote)
{
f++;
}
else
{
// Reset everything until we find our first note.
project.DeleteAllInstrument();
project.DeleteAllSamples();
for (int c = 0; c < song.Channels.Length; c++)
{
channelStates[c] = new ChannelState();
}
}
}
song.SetLength(p + 1);
NsfClose(nsf);
var factors = Utils.GetFactors(song.PatternLength, Song.MaxNoteLength);
if (factors.Length > 0 && factors[0] <= Song.MaxNoteLength)
{
song.ResizeNotes(factors[0], false);
}
else
{
song.ResizeNotes(1, false);
}
song.SetSensibleBarLength();
song.DeleteEmptyPatterns();
song.UpdatePatternStartNotes();
project.DeleteUnusedInstruments();
project.UpdateAllLastValidNotesAndVolume();
return(project);
}
public Project Load(string filename)
{
var envelopes = new Dictionary <int, Envelope> [Project.ExpansionCount, Envelope.Count];
var instruments = new Dictionary <int, Instrument>();
var dpcms = new Dictionary <int, DPCMSample>();
var columns = new int[5] {
1, 1, 1, 1, 1
};
for (int i = 0; i < envelopes.GetLength(0); i++)
{
for (int j = 0; j < envelopes.GetLength(1); j++)
{
envelopes[i, j] = new Dictionary <int, Envelope>();
}
}
project = new Project();
project.TempoMode = Project.TempoFamiTracker;
DPCMSample currentDpcm = null;
int dpcmWriteIdx = 0;
Song song = null;
string patternName = "";
var lines = File.ReadAllLines(filename);
for (int i = 0; i < lines.Length; i++)
{
var line = lines[i].Trim();
if (line.StartsWith("TITLE"))
{
project.Name = line.Substring(5).Trim(' ', '"');
}
else if (line.StartsWith("AUTHOR"))
{
project.Author = line.Substring(6).Trim(' ', '"');
}
else if (line.StartsWith("COPYRIGHT"))
{
project.Copyright = line.Substring(9).Trim(' ', '"');
}
else if (line.StartsWith("EXPANSION"))
{
var exp = int.Parse(line.Substring(9));
var convertedExp = ConvertExpansionAudio(exp);
if (convertedExp < 0)
{
return(null);
}
project.SetExpansionAudio(convertedExp);
}
else if (line.StartsWith("N163CHANNELS"))
{
var numExpChannels = int.Parse(line.Substring(12).Trim(' ', '"'));
project.SetExpansionAudio(Project.ExpansionN163, numExpChannels);
}
else if (line.StartsWith("MACRO"))
{
var expansion = line.StartsWith("MACROVRC6") ? Project.ExpansionVrc6 :
line.StartsWith("MACRON163") ? Project.ExpansionN163 : Project.ExpansionNone;
var halves = line.Substring(line.IndexOf(' ')).Split(':');
var param = halves[0].Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var curve = halves[1].Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var type = int.Parse(param[0]);
var idx = int.Parse(param[1]);
var loop = int.Parse(param[2]);
var rel = int.Parse(param[3]);
var famistudioType = EnvelopeTypeLookup[type];
if (famistudioType < Envelope.Count)
{
var env = new Envelope(famistudioType);
env.Length = curve.Length;
// FamiTracker allows envelope with release with no loop. We dont allow that.
if (env.CanRelease && loop == -1 && rel != -1)
{
loop = rel;
}
env.Loop = loop;
env.Release = env.CanRelease && rel != -1 ? rel + 1 : -1;
env.Relative = famistudioType == Envelope.Pitch;
for (int j = 0; j < curve.Length; j++)
{
env.Values[j] = sbyte.Parse(curve[j]);
}
envelopes[expansion, famistudioType][idx] = env;
}
}
else if (line.StartsWith("DPCMDEF"))
{
var param = SplitStringKeepQuotes(line.Substring(7));
currentDpcm = CreateUniquelyNamedSample(param[2], new byte[int.Parse(param[1])]);
dpcms[int.Parse(param[0])] = currentDpcm;
dpcmWriteIdx = 0;
}
else if (line.StartsWith("DPCM"))
{
if (currentDpcm != null) // Can happen if more than 16KB of samples
{
var param = line.Substring(6).Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
foreach (var s in param)
{
currentDpcm.Data[dpcmWriteIdx++] = Convert.ToByte(s, 16);
}
}
}
else if (line.StartsWith("KEYDPCM"))
{
var param = line.Substring(7).Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (param[0] == "0")
{
int octave = int.Parse(param[1]);
int semitone = int.Parse(param[2]);
int note = octave * 12 + semitone + 1;
if (project.NoteSupportsDPCM(note))
{
int dpcm = int.Parse(param[3]);
int pitch = int.Parse(param[4]);
int loop = int.Parse(param[5]);
project.MapDPCMSample(note, dpcms[dpcm], pitch, loop != 0);
}
}
}
else if (line.StartsWith("INST2A03") || line.StartsWith("INSTVRC6") || line.StartsWith("INSTN163"))
{
var expansion = line.StartsWith("INSTVRC6") ? Project.ExpansionVrc6 :
line.StartsWith("INSTN163") ? Project.ExpansionN163 : Project.ExpansionNone;
var param = SplitStringKeepQuotes(line.Substring(line.IndexOf(' ')));
int idx = int.Parse(param[0]);
int vol = int.Parse(param[1]);
int arp = int.Parse(param[2]);
int pit = int.Parse(param[3]);
int dut = int.Parse(param[5]);
var instrument = CreateUniquelyNamedInstrument(expansion, param[param.Length - 1]);
if (expansion == Project.ExpansionN163)
{
instrument.N163WavePreset = Envelope.WavePresetCustom;
instrument.N163WaveSize = byte.Parse(param[6]);
instrument.N163WavePos = byte.Parse(param[7]);
}
if (vol >= 0 && instrument.IsEnvelopeActive(Envelope.Volume))
{
instrument.Envelopes[Envelope.Volume] = envelopes[expansion, Envelope.Volume][vol].ShallowClone();
}
if (arp >= 0 && instrument.IsEnvelopeActive(Envelope.Arpeggio))
{
instrument.Envelopes[Envelope.Arpeggio] = envelopes[expansion, Envelope.Arpeggio][arp].ShallowClone();
}
if (pit >= 0 && instrument.IsEnvelopeActive(Envelope.Pitch))
{
instrument.Envelopes[Envelope.Pitch] = envelopes[expansion, Envelope.Pitch][pit].ShallowClone();
}
if (dut >= 0 && instrument.IsEnvelopeActive(Envelope.DutyCycle))
{
instrument.Envelopes[Envelope.DutyCycle] = envelopes[expansion, Envelope.DutyCycle][dut].ShallowClone();
}
instruments[idx] = instrument;
}
else if (line.StartsWith("INSTVRC7"))
{
var param = SplitStringKeepQuotes(line.Substring(line.IndexOf(' ')));
int idx = int.Parse(param[0]);
var instrument = CreateUniquelyNamedInstrument(Project.ExpansionVrc7, param[param.Length - 1]);
instrument.Vrc7Patch = byte.Parse(param[1]);
if (instrument.Vrc7Patch == 0)
{
for (int j = 0; j < 8; j++)
{
instrument.Vrc7PatchRegs[j] = Convert.ToByte(param[2 + j], 16);
}
}
instruments[idx] = instrument;
}
else if (line.StartsWith("INSTFDS"))
{
var param = SplitStringKeepQuotes(line.Substring(line.IndexOf(' ')));
int idx = int.Parse(param[0]);
int modEnable = int.Parse(param[1]);
int modSpeed = int.Parse(param[2]);
int modDepth = int.Parse(param[3]);
int modDelay = int.Parse(param[4]);
if (modEnable == 0)
{
modSpeed = 0;
modDepth = 0;
modDelay = 0;
}
instruments[idx] = CreateUniquelyNamedInstrument(Project.ExpansionFds, param[5]);
instruments[idx].FdsModSpeed = (ushort)modSpeed;
instruments[idx].FdsModDepth = (byte)modDepth;
instruments[idx].FdsModDelay = (byte)modDelay;
instruments[idx].FdsWavePreset = Envelope.WavePresetCustom;
instruments[idx].FdsModPreset = Envelope.WavePresetCustom;
}
else if (line.StartsWith("FDSMACRO"))
{
var halves = line.Substring(line.IndexOf(' ')).Split(':');
var param = halves[0].Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var curve = halves[1].Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var inst = int.Parse(param[0]);
var type = int.Parse(param[1]);
var loop = int.Parse(param[2]);
var rel = int.Parse(param[3]);
var famistudioType = EnvelopeTypeLookup[type];
var env = instruments[inst].Envelopes[famistudioType];
env.Length = curve.Length;
// FamiTracker allows envelope with release with no loop. We dont allow that.
if (env.CanRelease && loop == -1 && rel != -1)
{
loop = rel;
}
env.Loop = loop;
env.Release = env.CanRelease && rel != -1 ? rel + 1 : -1;
env.Relative = famistudioType == Envelope.Pitch;
for (int j = 0; j < curve.Length; j++)
{
env.Values[j] = sbyte.Parse(curve[j]);
}
}
else if (line.StartsWith("FDSMOD") || line.StartsWith("FDSWAVE"))
{
var mod = line.StartsWith("FDSMOD");
var halves = line.Substring(line.IndexOf(' ')).Split(':');
var param = halves[0].Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var curve = halves[1].Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var inst = int.Parse(param[0]);
var env = instruments[inst].Envelopes[mod ? Envelope.FdsModulation : Envelope.FdsWaveform];
for (int j = 0; j < curve.Length; j++)
{
env.Values[j] = sbyte.Parse(curve[j]);
}
if (mod)
{
env.ConvertFdsModulationToAbsolute();
}
}
else if (line.StartsWith("N163WAVE"))
{
var param = line.Substring(8).Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var instIdx = int.Parse(param[0]);
var waveIdx = int.Parse(param[1]);
// TODO: We could create different instruments for each wave.
if (waveIdx == 0)
{
var env = instruments[instIdx].Envelopes[Envelope.N163Waveform];
for (int j = 3; j < param.Length; j++)
{
env.Values[j - 3] = sbyte.Parse(param[j]);
}
}
}
else if (line.StartsWith("TRACK"))
{
var param = SplitStringKeepQuotes(line.Substring(5));
song = project.CreateSong(param[3]);
song.SetLength(0);
song.SetDefaultPatternLength(int.Parse(param[0]));
song.FamitrackerSpeed = int.Parse(param[1]);
song.FamitrackerTempo = int.Parse(param[2]);
columns = new int[song.Channels.Length];
}
else if (line.StartsWith("COLUMNS"))
{
var param = line.Substring(7).Split(new[] { ' ', ':' }, StringSplitOptions.RemoveEmptyEntries);
for (int j = 0; j < song.Channels.Length; j++)
{
columns[j] = int.Parse(param[j]);
}
}
else if (line.StartsWith("ORDER"))
{
var orderIdx = Convert.ToInt32(line.Substring(6, 2), 16);
var values = line.Substring(5).Split(':')[1].Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var order = new int[song.Channels.Length];
for (int j = 0; j < song.Channels.Length; j++)
{
int patternIdx = Convert.ToInt32(values[j], 16);
var name = values[j];
var pattern = song.Channels[j].GetPattern(name);
if (pattern == null)
{
pattern = song.Channels[j].CreatePattern(name);
}
song.Channels[j].PatternInstances[orderIdx] = pattern;
}
song.SetLength(song.Length + 1);
}
else if (line.StartsWith("PATTERN"))
{
patternName = line.Substring(8);
}
else if (line.StartsWith("ROW"))
{
var channels = line.Split(new[] { ':' }, StringSplitOptions.RemoveEmptyEntries);
var n = Convert.ToInt32(channels[0].Substring(4, 2), 16);
for (int j = 1; j <= song.Channels.Length; j++)
{
var noteData = channels[j].Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var pattern = song.Channels[j - 1].GetPattern(patternName);
if (pattern == null)
{
continue;
}
//var fxData = new RowFxData[song.PatternLength];
if (!patternFxData.ContainsKey(pattern))
{
patternFxData[pattern] = new RowFxData[song.PatternLength, 4];
}
// Note
if (noteData[0] == "---")
{
pattern.GetOrCreateNoteAt(n).Value = Note.NoteStop;
}
else if (noteData[0] == "===")
{
pattern.GetOrCreateNoteAt(n).Value = Note.NoteRelease;
}
else if (noteData[0] != "...")
{
int famitoneNote;
if (j == 4)
{
famitoneNote = (Convert.ToInt32(noteData[0].Substring(0, 1), 16) + 31) + 1;
}
else
{
int semitone = TextToNoteLookup[noteData[0].Substring(0, 2)];
int octave = noteData[0][2] - '0';
famitoneNote = octave * 12 + semitone + 1;
}
if (famitoneNote >= Note.MusicalNoteMin && famitoneNote <= Note.MusicalNoteMax)
{
var note = pattern.GetOrCreateNoteAt(n);
note.Value = (byte)famitoneNote;
note.Instrument = j == 5 ? null : instruments[Convert.ToInt32(noteData[1], 16)];
}
else
{
// Note outside of range.
}
}
// Volume
if (noteData[2] != ".")
{
pattern.GetOrCreateNoteAt(n).Volume = Convert.ToByte(noteData[2], 16);
}
// Read FX.
for (int k = 0; k < columns[j - 1]; k++)
{
var fxStr = noteData[3 + k];
if (fxStr == "...")
{
continue;
}
var fx = new RowFxData();
if (project.ExpansionAudio == Project.ExpansionFds && FdsTextToEffectLookup.TryGetValue(fxStr[0], out var fdsFx))
{
fx.fx = (byte)fdsFx;
}
else
{
fx.fx = TextToEffectLookup[fxStr[0]];
}
fx.param = Convert.ToByte(fxStr.Substring(1), 16);
patternFxData[pattern][n, k] = fx;
ApplySimpleEffects(fx, pattern, n, patternLengths);
}
}
}
}
FinishImport();
return(project);
}
public Project Load(string filename, int songIndex, int duration, int patternLength, int startFrame, bool removeIntroSilence, bool reverseDpcm, bool preserveDpcmPad)
{
nsf = NsfOpen(filename);
if (nsf == IntPtr.Zero)
{
Log.LogMessage(LogSeverity.Error, "Error opening NSF. File may be corrupted or may be a NSF2 using advanced features such as IRQ which are not supported at the moment.");
return(null);
}
var trackCount = NsfGetTrackCount(nsf);
if (songIndex < 0 || songIndex > trackCount)
{
return(null);
}
preserveDpcmPadding = preserveDpcmPad;
var palSource = (NsfIsPal(nsf) & 1) == 1;
var numFrames = duration * (palSource ? 50 : 60);
project = new Project();
project.Name = Marshal.PtrToStringAnsi(NsfGetTitle(nsf));
project.Author = Marshal.PtrToStringAnsi(NsfGetArtist(nsf));
project.Copyright = Marshal.PtrToStringAnsi(NsfGetCopyright(nsf));
project.PalMode = palSource;
// Our expansion mask is the same as NSF.
var expansionMask = NsfGetExpansion(nsf);
// The 2 upper bits of the mask need to be zero, we dont support these.
if (expansionMask != (expansionMask & ExpansionType.AllMask))
{
Log.LogMessage(LogSeverity.Error, "NSF uses unknown or unsupported expansion chips, aborting.");
NsfClose(nsf);
return(null);
}
var numN163Channels = (expansionMask & ExpansionType.N163Mask) != 0 ? GetNumNamcoChannels(filename, songIndex, numFrames) : 1;
project.SetExpansionAudioMask(expansionMask, numN163Channels);
var songName = Marshal.PtrToStringAnsi(NsfGetTrackName(nsf, songIndex));
song = project.CreateSong(string.IsNullOrEmpty(songName) ? $"Song {songIndex + 1}" : songName);
channelStates = new ChannelState[song.Channels.Length];
NsfSetTrack(nsf, songIndex);
song.ChangeFamiStudioTempoGroove(new[] { 1 }, false);
song.SetDefaultPatternLength(patternLength);
for (int i = 0; i < song.Channels.Length; i++)
{
channelStates[i] = new ChannelState();
}
var foundFirstNote = !removeIntroSilence;
var p = 0;
var n = 0;
var f = startFrame;
for (int i = 0; i < numFrames; i++)
{
p = f / song.PatternLength;
n = f % song.PatternLength;
if (p >= Song.MaxLength - 1)
{
break;
}
var playCalled = 0;
var waitFrameCount = 0;
do
{
playCalled = NsfRunFrame(nsf);
if (++waitFrameCount == 1000)
{
Log.LogMessage(LogSeverity.Error, "NSF did not call PLAY after 1000 frames, aborting.");
NsfClose(nsf);
return(null);
}
}while (playCalled == 0);
for (int c = 0; c < song.Channels.Length; c++)
{
foundFirstNote |= UpdateChannel(p, n, song.Channels[c], channelStates[c]);
}
if (foundFirstNote)
{
f++;
}
else
{
// Reset everything until we find our first note.
project.DeleteAllInstruments();
project.DeleteAllSamples();
for (int c = 0; c < song.Channels.Length; c++)
{
channelStates[c] = new ChannelState();
}
}
}
song.SetLength(p + 1);
NsfClose(nsf);
var factors = Utils.GetFactors(song.PatternLength, FamiStudioTempoUtils.MaxNoteLength);
if (factors.Length > 0)
{
var noteLen = factors[0];
// Look for a factor that generates a note length < 10 and gives a pattern length that is a multiple of 16.
foreach (var factor in factors)
{
if (factor <= 10)
{
noteLen = factor;
if (((song.PatternLength / noteLen) % 16) == 0)
{
break;
}
}
}
song.ChangeFamiStudioTempoGroove(new[] { noteLen }, false);
}
else
{
song.ChangeFamiStudioTempoGroove(new[] { 1 }, false);
}
song.SetSensibleBeatLength();
song.ConvertToCompoundNotes();
song.DeleteEmptyPatterns();
song.UpdatePatternStartNotes();
song.InvalidateCumulativePatternCache();
project.DeleteUnusedInstruments();
foreach (var sample in project.Samples)
{
sample.ReverseBits = reverseDpcm;
}
return(project);
}