/* create a new track user effect processor */
public static SynthErrorCodes NewTrackUserEffectProc(
UserEffectSpecRec Template,
SynthParamRec SynthParams,
out UserEffectProcRec effectOut)
{
effectOut = null;
/* allocate structure */
UserEffectProcRec Proc = new UserEffectProcRec();
SynthErrorCodes error = UserEffectSharedInit(Proc, Template, SynthParams);
if (error != SynthErrorCodes.eSynthDone)
{
return(error);
}
Proc.params_Track = new UserEffectParamRec_Track[Proc.paramCount];
/* initialize argument evaluators */
for (int i = 0; i < Proc.paramCount; i += 1)
{
GetUserEffectSpecParamAgg(
Template,
i,
out Proc.params_Track[i].Eval);
}
effectOut = Proc;
return(SynthErrorCodes.eSynthDone);
}
/* shared initialization */
private static SynthErrorCodes UserEffectSharedInit(
UserEffectProcRec Proc,
UserEffectSpecRec Template,
SynthParamRec SynthParams)
{
Proc.disableOversampling = GetUserEffectSpecNoOversampling(Template);
double sr = SynthParams.dSamplingRate;
if (!((SynthParams.iOversampling == 1) || !Proc.disableOversampling))
{
sr /= SynthParams.iOversampling;
}
/* init func */
{
string FuncName = GetUserEffectSpecInitFuncName(Template);
if (FuncName != null)
{
FuncCodeRec FuncCode = SynthParams.CodeCenter.ObtainFunctionHandle(FuncName);
if (FuncCode == null)
{
// Function missing; should have been found by CheckUnreferencedThings
Debug.Assert(false);
throw new ArgumentException();
}
DataTypes[] argsTypes;
DataTypes returnType;
UserEffectGetInitSignature(Template, out argsTypes, out returnType);
FunctionSignature expectedSignature = new FunctionSignature(argsTypes, returnType);
FunctionSignature actualSignature = new FunctionSignature(
FuncCode.GetFunctionParameterTypeList(),
FuncCode.GetFunctionReturnType());
if (!FunctionSignature.Equals(expectedSignature, actualSignature))
{
// Function type mismatch; should have been found by CheckUnreferencedThings
Debug.Assert(false);
throw new ArgumentException();
}
Proc.InitFunc = FuncCode.GetFunctionPcode();
}
}
/* data func */
{
DataTypes[] argsTypes;
DataTypes returnType;
UserEffectGetDataSignature(Template, out argsTypes, out returnType);
FunctionSignature expectedSignature = new FunctionSignature(argsTypes, returnType);
foreach (string FuncName in GetUserEffectSpecProcessDataFuncNames(Template))
{
FuncCodeRec FuncCode = SynthParams.CodeCenter.ObtainFunctionHandle(FuncName);
if (FuncCode == null)
{
// Function missing; should have been found by CheckUnreferencedThings
Debug.Assert(false);
throw new ArgumentException();
}
FunctionSignature actualSignature = new FunctionSignature(
FuncCode.GetFunctionParameterTypeList(),
FuncCode.GetFunctionReturnType());
if (FunctionSignature.Equals(expectedSignature, actualSignature))
{
Proc.DataFunc = FuncCode.GetFunctionPcode();
break;
}
}
if (Proc.DataFunc == null)
{
// None matched -- should have been found by CheckUnreferencedThings
Debug.Assert(false);
throw new ArgumentException();
}
}
Proc.paramCount = GetUserEffectSpecParamCount(Template);
Proc.paramResults = new double[Proc.paramCount];
Proc.paramResultsPrevious = new double[Proc.paramCount];
// create state objects
DataTypes[] stateTypes = UserEffectGetWorkspaceTypes(Template);
Proc.userState = new ArrayHandle[stateTypes.Length];
for (int i = 0; i < Proc.userState.Length; i++)
{
switch (stateTypes[i])
{
default:
Debug.Assert(false);
throw new ArgumentException();
case DataTypes.eArrayOfInteger:
Proc.userState[i] = new ArrayHandleInt32(new int[0]);
break;
case DataTypes.eArrayOfFloat:
Proc.userState[i] = new ArrayHandleFloat(new float[0]);
break;
case DataTypes.eArrayOfDouble:
Proc.userState[i] = new ArrayHandleDouble(new double[0]);
break;
}
}
Proc.smoothingBuffers = new SmoothingEntry[Template.Items.Length];
for (int i = 0; i < Template.Items.Length; i++)
{
if (Template.Items[i].Smoothed)
{
float[] vector = new float[SynthParams.nAllocatedPointsOneChannel];
Proc.smoothingBuffers[i].vector = vector;
Proc.smoothingBuffers[i].arrayHandle = new ArrayHandleFloat(vector);
}
}
/* initialize user state */
if (Proc.InitFunc != null)
{
int argCount = 1 /*retval*/
+ 1 /*t*/
+ 1 /*bpm*/
+ 1 /*samplingRate*/
+ 1 /*maxSampleCount*/
+ Proc.userState.Length /*user state arrays*/
+ 1 /*retaddr*/;
SynthParams.FormulaEvalContext.EmptyParamStackEnsureCapacity(argCount);
StackElement[] StackBase;
int StackNumElements;
SynthParams.FormulaEvalContext.GetRawStack(out StackBase, out StackNumElements);
StackBase[StackNumElements++].Data.Double = SynthParams.dElapsedTimeInSeconds; /* t */
StackBase[StackNumElements++].Data.Double = SynthParams.dCurrentBeatsPerMinute; /* bpm */
StackBase[StackNumElements++].Data.Double = sr; /* samplingRate */
StackBase[StackNumElements++].Data.Integer = SynthParams.nAllocatedPointsOneChannel; /* maxSampleCount */
for (int i = 0; i < Proc.userState.Length; i++)
{
StackBase[StackNumElements++].reference.arrayHandleGeneric = Proc.userState[i]; // user state
}
StackNumElements++; /* return address placeholder */
SynthParams.FormulaEvalContext.UpdateRawStack(StackBase, StackNumElements);
EvalErrInfoRec ErrorInfo;
EvalErrors Error = PcodeSystem.EvaluatePcode(
SynthParams.FormulaEvalContext,
Proc.InitFunc,
SynthParams.CodeCenter,
out ErrorInfo,
PcodeExternsNull.Default,
ref SynthParams.pcodeThreadContext);
if (Error != EvalErrors.eEvalNoError)
{
SynthParams.ErrorInfo.ErrorEx = SynthErrorSubCodes.eSynthErrorExUserEffectFunctionEvalError;
SynthParams.ErrorInfo.UserEvalErrorCode = Error;
SynthParams.ErrorInfo.UserEvalErrorInfo = ErrorInfo;
return(SynthErrorCodes.eSynthErrorEx);
}
Debug.Assert(SynthParams.FormulaEvalContext.GetStackNumElements() == 1); // return value
SynthParams.FormulaEvalContext.Clear();
}
// initialize sample data in/out staging areas
Proc.leftWorkspace = new float[SynthParams.nAllocatedPointsOneChannel];
Proc.leftWorkspaceHandle = new ArrayHandleFloat(null);
Proc.rightWorkspace = new float[SynthParams.nAllocatedPointsOneChannel];
Proc.rightWorkspaceHandle = new ArrayHandleFloat(null);
return(SynthErrorCodes.eSynthDone);
}
/* create a new oscillator user effect processor */
public static SynthErrorCodes NewOscUserEffectProc(
UserEffectSpecRec Template,
ref AccentRec Accents,
double HurryUp,
double InitialFrequency,
double FreqForMultisampling,
out int PreOriginTimeOut,
PlayTrackInfoRec TrackInfo,
SynthParamRec SynthParams,
out UserEffectProcRec effectOut)
{
effectOut = null;
PreOriginTimeOut = 0;
/* allocate structure */
UserEffectProcRec Proc = new UserEffectProcRec();
SynthErrorCodes error = UserEffectSharedInit(Proc, Template, SynthParams);
if (error != SynthErrorCodes.eSynthDone)
{
return(error);
}
Proc.params_Osc = new UserEffectParamRec_Osc[Proc.paramCount];
/* initialize argument evaluators */
int MaxPreOrigin = 0;
for (int i = 0; i < Proc.paramCount; i += 1)
{
int OnePreOrigin;
Proc.params_Osc[i].Envelope = NewEnvelopeStateRecord(
GetUserEffectSpecParamEnvelope(Template, i),
ref Accents,
InitialFrequency,
1,
HurryUp,
out OnePreOrigin,
_PlayTrackParamGetter,
TrackInfo,
SynthParams);
if (OnePreOrigin > MaxPreOrigin)
{
MaxPreOrigin = OnePreOrigin;
}
Proc.params_Osc[i].LFO = NewLFOGenerator(
GetUserEffectSpecParamLFO(Template, i),
out OnePreOrigin,
ref Accents,
InitialFrequency,
HurryUp,
1,
1,
FreqForMultisampling,
_PlayTrackParamGetter,
TrackInfo,
SynthParams);
if (OnePreOrigin > MaxPreOrigin)
{
MaxPreOrigin = OnePreOrigin;
}
}
PreOriginTimeOut = MaxPreOrigin;
for (int i = 0; i < Template.Items.Length; i++)
{
if (Template.Items[i].Smoothed)
{
if (IsLFOSampleAndHold(Proc.params_Osc[i].LFO))
{
// degrade sample & hold, since smoothing is probably not what was intended
Proc.smoothingBuffers[i].degraded = true;
}
}
}
effectOut = Proc;
return(SynthErrorCodes.eSynthDone);
}
/* 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);
}
