/* initialize common parts of nlproc structure */ private static NLProcUnifiedRec CommonNLStructAlloc( NonlinProcSpecRec Template, SynthParamRec SynthParams) { NLProcUnifiedRec NLProc = new NLProcUnifiedRec(); /* get the wave table to use for this instance */ string Name = GetNLProcSpecWaveTableName(Template); if (!WaveSampDictGetWaveTableInfo( SynthParams.Dictionary, Name, out NLProc.WaveTableMatrix, out NLProc.FramesPerTable, out NLProc.NumberOfTables)) { Debug.Assert(false); throw new InvalidOperationException(); } NLProc.NumberOfTablesMinus1 = NLProc.NumberOfTables - 1; NLProc.clampOverflow = GetNLProcOverflowMode(Template) == NonlinProcOverflowMode.Clamp; return(NLProc); }
/* create a new track nonlinear processor */ public static NLProcUnifiedRec NewTrackNLProcProcessor( NonlinProcSpecRec Template, SynthParamRec SynthParams) { /* initialize common portion of structure */ NLProcUnifiedRec NLProc = CommonNLStructAlloc( Template, SynthParams); NLProc.Track = new NLTrackRec(); /* initialize variant portion */ GetNLProcInputScalingAgg( Template, out NLProc.Track.InputScaling); GetNLProcOutputScalingAgg( Template, out NLProc.Track.OutputScaling); GetNLProcWaveTableIndexAgg( Template, out NLProc.Track.WaveTableIndex); return(NLProc); }
/* apply processor to stream */ private static void ApplyUnifiedNLProcHelper( float[] Data, int Offset, int nActualFrames, NLProcUnifiedRec NLProc, SynthParamRec SynthParams) { double WaveIndexScaling; double WaveIndexScalingTimesInputScaling; #if DEBUG Debug.Assert(!SynthParams.ScratchWorkspace3InUse); SynthParams.ScratchWorkspace3InUse = true; #endif Fixed64[] FrameIndexBufferBase = SynthParams.ScratchWorkspace3; int FrameIndexBufferOffset = SynthParams.ScratchWorkspace3Offset; #if DEBUG if ((NLProc.CurrentWaveTableIndex < 0) || (NLProc.CurrentWaveTableIndex > NLProc.NumberOfTablesMinus1)) { // table index out of range Debug.Assert(false); throw new InvalidOperationException(); } #endif /* expansion factor for wave table length */ WaveIndexScaling = .5 * (NLProc.FramesPerTable - 1); /* precomputed thang */ WaveIndexScalingTimesInputScaling = NLProc.CurrentInputScaling * WaveIndexScaling; /* compute phases from input data */ /* (1 + x * inputscaling) / 2 * (framespertable - 1) */ /* Phase = (1 + AdjustedBase[Scan] * InputScaling) * WaveIndexScaling; */ /* Phase = WaveIndexScaling + AdjustedBase[Scan] * WaveIndexScalingTimesInputScaling; */ VectorAssignFixed64FromFloat( FrameIndexBufferBase, FrameIndexBufferOffset, Data, Offset, nActualFrames, (float)WaveIndexScalingTimesInputScaling /*factor */, (float)WaveIndexScaling /*addend*/); if (NLProc.clampOverflow) { Clamp( FrameIndexBufferBase, FrameIndexBufferOffset, NLProc.FramesPerTable, nActualFrames); } VectorWaveIndex( NLProc.CurrentWaveTableIndex, NLProc.FramesPerTable, NLProc.NumberOfTables, NLProc.WaveTableMatrix, FrameIndexBufferBase, FrameIndexBufferOffset, Data, Offset, nActualFrames, (float)NLProc.CurrentOutputScaling); #if DEBUG SynthParams.ScratchWorkspace3InUse = false; #endif }
/* create a new oscillator nonlinear processor */ public static NLProcUnifiedRec NewOscNLProcProcessor( NonlinProcSpecRec Template, ref AccentRec Accents, double HurryUp, double InitialFrequency, double FreqForMultisampling, out int PreOriginTimeOut, PlayTrackInfoRec TrackInfo, SynthParamRec SynthParams) { int OnePreOrigin; /* initialize common portion of structure */ NLProcUnifiedRec NLProc = CommonNLStructAlloc( Template, SynthParams); NLProc.Oscillator = new NLOscRec(); int MaxPreOrigin = 0; NLProc.Oscillator.InputScalingEnvelope = NewEnvelopeStateRecord( GetNLProcInputEnvelope(Template), ref Accents, InitialFrequency, 1, HurryUp, out OnePreOrigin, _PlayTrackParamGetter, TrackInfo, SynthParams); if (OnePreOrigin > MaxPreOrigin) { MaxPreOrigin = OnePreOrigin; } NLProc.Oscillator.InputScalingLFO = NewLFOGenerator( GetNLProcInputLFO(Template), out OnePreOrigin, ref Accents, InitialFrequency, HurryUp, 1, 1, FreqForMultisampling, _PlayTrackParamGetter, TrackInfo, SynthParams); if (OnePreOrigin > MaxPreOrigin) { MaxPreOrigin = OnePreOrigin; } NLProc.Oscillator.OutputScalingEnvelope = NewEnvelopeStateRecord( GetNLProcOutputEnvelope(Template), ref Accents, InitialFrequency, 1, HurryUp, out OnePreOrigin, _PlayTrackParamGetter, TrackInfo, SynthParams); if (OnePreOrigin > MaxPreOrigin) { MaxPreOrigin = OnePreOrigin; } NLProc.Oscillator.OutputScalingLFO = NewLFOGenerator( GetNLProcOutputLFO(Template), out OnePreOrigin, ref Accents, InitialFrequency, HurryUp, 1, 1, FreqForMultisampling, _PlayTrackParamGetter, TrackInfo, SynthParams); if (OnePreOrigin > MaxPreOrigin) { MaxPreOrigin = OnePreOrigin; } NLProc.Oscillator.WaveTableIndexEnvelope = NewEnvelopeStateRecord( GetNLProcIndexEnvelope(Template), ref Accents, InitialFrequency, 1, HurryUp, out OnePreOrigin, _PlayTrackParamGetter, TrackInfo, SynthParams); if (OnePreOrigin > MaxPreOrigin) { MaxPreOrigin = OnePreOrigin; } NLProc.Oscillator.WaveTableIndexLFO = NewLFOGenerator( GetNLProcIndexLFO(Template), out OnePreOrigin, ref Accents, InitialFrequency, HurryUp, 1, 1, FreqForMultisampling, _PlayTrackParamGetter, TrackInfo, SynthParams); if (OnePreOrigin > MaxPreOrigin) { MaxPreOrigin = OnePreOrigin; } PreOriginTimeOut = MaxPreOrigin; return(NLProc); }
/* create a new oscillator effect generator */ public static SynthErrorCodes NewOscEffectGenerator( EffectSpecListRec SpecList, ref AccentRec Accents, double HurryUp, double InitialFrequency, double FreqForMultisampling, out int PreOriginTimeOut, PlayTrackInfoRec TrackInfo, SynthParamRec SynthParams, out OscEffectGenRec GeneratorOut) { int OnePreOrigin; GeneratorOut = null; PreOriginTimeOut = 0; OscEffectGenRec Generator = New(ref SynthParams.freelists.OscEffectGenRecFreeList); int count = Generator.count = GetEffectSpecListEnabledLength(SpecList); IOscillatorEffect[] List = Generator.List = New(ref SynthParams.freelists.IOscillatorEffectFreeList, count); // zeroed if (unchecked ((uint)count > (uint)List.Length)) { Debug.Assert(false); throw new IndexOutOfRangeException(); } int MaxPreOrigin = 0; /* build list of thingers */ int j = 0; for (int i = 0; j < count; i++) { /* see if effect is enabled */ if (!IsEffectFromEffectSpecListEnabled(SpecList, i)) { continue; } /* fill in fields */ EffectTypes Type = GetEffectSpecListElementType(SpecList, i); switch (Type) { default: Debug.Assert(false); throw new ArgumentException(); case EffectTypes.eDelayEffect: List[j] = DelayUnifiedRec.NewOscUnifiedDelayLineProcessor( GetDelayEffectFromEffectSpecList(SpecList, i), ref Accents, HurryUp, InitialFrequency, FreqForMultisampling, out OnePreOrigin, TrackInfo, SynthParams); if (OnePreOrigin > MaxPreOrigin) { MaxPreOrigin = OnePreOrigin; } break; case EffectTypes.eNLProcEffect: List[j] = NLProcUnifiedRec.NewOscNLProcProcessor( GetNLProcEffectFromEffectSpecList(SpecList, i), ref Accents, HurryUp, InitialFrequency, FreqForMultisampling, out OnePreOrigin, TrackInfo, SynthParams); if (OnePreOrigin > MaxPreOrigin) { MaxPreOrigin = OnePreOrigin; } break; case EffectTypes.eFilterEffect: List[j] = FilterArrayRec.NewOscFilterArrayProcessor( GetFilterEffectFromEffectSpecList(SpecList, i), ref Accents, HurryUp, InitialFrequency, FreqForMultisampling, out OnePreOrigin, TrackInfo, SynthParams); if (OnePreOrigin > MaxPreOrigin) { MaxPreOrigin = OnePreOrigin; } break; case EffectTypes.eAnalyzerEffect: List[j] = AnalyzerRec.NewAnalyzer( GetAnalyzerEffectFromEffectSpecList(SpecList, i), SynthParams); break; case EffectTypes.eHistogramEffect: List[j] = HistogramRec.NewHistogram( GetHistogramEffectFromEffectSpecList(SpecList, i), SynthParams); break; case EffectTypes.eResamplerEffect: List[j] = ResamplerRec.NewResampler( GetResamplerEffectFromEffectSpecList(SpecList, i), SynthParams); break; case EffectTypes.eCompressorEffect: List[j] = CompressorRec.NewOscCompressor( GetCompressorEffectFromEffectSpecList(SpecList, i), ref Accents, HurryUp, InitialFrequency, FreqForMultisampling, out OnePreOrigin, TrackInfo, SynthParams); if (OnePreOrigin > MaxPreOrigin) { MaxPreOrigin = OnePreOrigin; } break; case EffectTypes.eVocoderEffect: List[j] = VocoderRec.NewOscVocoder( GetVocoderEffectFromEffectSpecList(SpecList, i), ref Accents, HurryUp, InitialFrequency, FreqForMultisampling, out OnePreOrigin, TrackInfo, SynthParams); if (OnePreOrigin > MaxPreOrigin) { MaxPreOrigin = OnePreOrigin; } break; case EffectTypes.eIdealLowpassEffect: List[j] = IdealLPRec.NewIdealLP( GetIdealLPEffectFromEffectSpecList(SpecList, i), SynthParams); break; case EffectTypes.eUserEffect: { UserEffectProcRec userEffect; SynthErrorCodes error = UserEffectProcRec.NewOscUserEffectProc( GetUserEffectFromEffectSpecList(SpecList, i), ref Accents, HurryUp, InitialFrequency, FreqForMultisampling, out OnePreOrigin, TrackInfo, SynthParams, out userEffect); if (error != SynthErrorCodes.eSynthDone) { return(error); } List[j] = userEffect; if (OnePreOrigin > MaxPreOrigin) { MaxPreOrigin = OnePreOrigin; } } break; case EffectTypes.ePluggableEffect: { PluggableSpec Spec = GetPluggableEffectFromEffectSpecList(SpecList, i); Debug.Assert(Spec is PluggableOscSpec); PluggableOscEffectTemplate template = new PluggableOscEffectTemplate( (PluggableOscSpec)Spec, SynthParams); IOscillatorEffect effect; SynthErrorCodes error = template.Create( ref Accents, HurryUp, InitialFrequency, FreqForMultisampling, out OnePreOrigin, TrackInfo, SynthParams, out effect); if (error != SynthErrorCodes.eSynthDone) { return(error); } List[j] = effect; if (OnePreOrigin > MaxPreOrigin) { MaxPreOrigin = OnePreOrigin; } } break; } j++; } Debug.Assert(j == count); PreOriginTimeOut = MaxPreOrigin; GeneratorOut = Generator; return(SynthErrorCodes.eSynthDone); }
/* create a new track effect generator */ public static SynthErrorCodes NewTrackEffectGenerator( EffectSpecListRec SpecList, SynthParamRec SynthParams, out TrackEffectGenRec GeneratorOut) { GeneratorOut = null; TrackEffectGenRec Generator = new TrackEffectGenRec(); Generator.Enable = true; Generator.AutoQuiescence = EffectSpecListIsAutoQuiescenceEnabled(SpecList); if (Generator.AutoQuiescence) { Generator.Enable = false; /* start with it off in this case */ Generator.GateLevel = (float)(Math.Pow( 2, EffectSpecListGetAutoQuiescenceDecibels(SpecList) * (1 / -6.0205999132796239)) / SynthParams.fOverallVolumeScaling); Generator.WindowDuration = (int)(SynthParams.dEnvelopeRate * EffectSpecListGetAutoQuiescenceWindowDuration(SpecList)); Generator.CurrentWindowDuration = 0; } /* this is the current envelope update index for removing things from the */ /* scanning gap list (i.e. the back edge of the scanning gap) */ /* by setting this negative, we cause the scanning gap to open. */ Generator.ExecutionIndex = -SynthParams.iScanningGapWidthInEnvelopeTicks; /* initialize accent trackers */ InitAccentTracker(ref Generator.Accents0); InitAccentTracker(ref Generator.Accents1); InitAccentTracker(ref Generator.Accents2); InitAccentTracker(ref Generator.Accents3); InitAccentTracker(ref Generator.Accents4); InitAccentTracker(ref Generator.Accents5); InitAccentTracker(ref Generator.Accents6); InitAccentTracker(ref Generator.Accents7); /* build list of thingers */ OneEffectRec Appender = null; int l = GetEffectSpecListLength(SpecList); for (int i = 0; i < l; i += 1) { /* see if effect is enabled */ if (IsEffectFromEffectSpecListEnabled(SpecList, i)) { OneEffectRec Effect = new OneEffectRec(); /* link */ Effect.Next = null; if (Appender == null) { Generator.List = Effect; } else { Appender.Next = Effect; } Appender = Effect; /* fill in fields */ EffectTypes Type = GetEffectSpecListElementType(SpecList, i); switch (Type) { default: Debug.Assert(false); throw new ArgumentException(); case EffectTypes.eDelayEffect: Effect.u = DelayUnifiedRec.NewTrackDelayLineProcessor( GetDelayEffectFromEffectSpecList(SpecList, i), SynthParams); break; case EffectTypes.eNLProcEffect: Effect.u = NLProcUnifiedRec.NewTrackNLProcProcessor( GetNLProcEffectFromEffectSpecList(SpecList, i), SynthParams); break; case EffectTypes.eFilterEffect: Effect.u = FilterArrayRec.NewTrackFilterArrayProcessor( GetFilterEffectFromEffectSpecList(SpecList, i), SynthParams); break; case EffectTypes.eAnalyzerEffect: Effect.u = AnalyzerRec.NewAnalyzer( GetAnalyzerEffectFromEffectSpecList(SpecList, i), SynthParams); break; case EffectTypes.eHistogramEffect: Effect.u = HistogramRec.NewHistogram( GetHistogramEffectFromEffectSpecList(SpecList, i), SynthParams); break; case EffectTypes.eResamplerEffect: Effect.u = ResamplerRec.NewResampler( GetResamplerEffectFromEffectSpecList(SpecList, i), SynthParams); break; case EffectTypes.eCompressorEffect: Effect.u = CompressorRec.NewTrackCompressor( GetCompressorEffectFromEffectSpecList(SpecList, i), SynthParams); break; case EffectTypes.eVocoderEffect: Effect.u = VocoderRec.NewTrackVocoder( GetVocoderEffectFromEffectSpecList(SpecList, i), SynthParams); break; case EffectTypes.eIdealLowpassEffect: Effect.u = IdealLPRec.NewIdealLP( GetIdealLPEffectFromEffectSpecList(SpecList, i), SynthParams); break; case EffectTypes.eConvolverEffect: { ConvolverRec ConvolverEffect; SynthErrorCodes Result = ConvolverRec.NewConvolver( GetConvolverEffectFromEffectSpecList(SpecList, i), SynthParams, out ConvolverEffect); if (Result != SynthErrorCodes.eSynthDone) { return(Result); } Effect.u = ConvolverEffect; } break; case EffectTypes.eUserEffect: { UserEffectProcRec userEffect; SynthErrorCodes error = UserEffectProcRec.NewTrackUserEffectProc( GetUserEffectFromEffectSpecList(SpecList, i), SynthParams, out userEffect); if (error != SynthErrorCodes.eSynthDone) { return(error); } Effect.u = userEffect; } break; case EffectTypes.ePluggableEffect: { PluggableSpec Spec = GetPluggableEffectFromEffectSpecList(SpecList, i); Debug.Assert(Spec is PluggableTrackSpec); PluggableTrackEffectTemplate Template = new PluggableTrackEffectTemplate( (PluggableTrackSpec)Spec, SynthParams); ITrackEffect effect; SynthErrorCodes error = Template.Create( SynthParams, out effect); if (error != SynthErrorCodes.eSynthDone) { return(error); } Effect.u = effect; } break; } } } GeneratorOut = Generator; return(SynthErrorCodes.eSynthDone); }