public float OldRight; /* last left sample from last time */
/* create a new resampling processor */
public static ResamplerRec NewResampler(
ResamplerSpecRec Template,
SynthParamRec SynthParams)
{
ResamplerRec Resampler = new ResamplerRec();
Resampler.EffectSamplingRate = GetResampleRate(Template);
Resampler.ResampMethod = GetResamplingMethod(Template);
Resampler.OutputMethod = GetResampleOutputMethod(Template);
//Resampler.CurrentPhase = 0;
Resampler.PhaseDifferential = Resampler.EffectSamplingRate / SynthParams.dSamplingRate;
//Resampler.Left0Value = 0;
//Resampler.Left1Value = 0;
//Resampler.Right0Value = 0;
//Resampler.Right1Value = 0;
//Resampler.OldLeft = 0;
//Resampler.OldRight = 0;
return(Resampler);
}
/* 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);
}
