State management for audio functions in AudioEquationParser. More...

#include <gin_audiofunctions.h>

Inheritance diagram for AudioFunctionHost:

Public Member Functions
void	setSampleRate (double sr)

double	getSampleRate ()

void	reset ()

void	addConstants (gin::EquationParser &)

void	addUtilities (gin::EquationParser &)

void	addOscillatorFunctions (gin::EquationParser &)

void	addSynthFilterFunctions (gin::EquationParser &)

void	addEffectFilterFunctions (gin::EquationParser &)

template<class T >
T *	getFuncParams (int i, double sr)

Public Attributes
gin::BandLimitedLookupTables *	lookupTables = nullptr

Protected Attributes
std::map< int, std::unique_ptr< FuncState > >	funcStates

double	sampleRate = 44100.0

Detailed Description

State management for audio functions in AudioEquationParser.

AudioFunctionHost manages the state objects for all stateful audio functions (filters, oscillators, noise generators) used in audio equation parsing. It provides factory methods for creating and retrieving state objects, ensuring each function instance maintains its own state across evaluations.

Key Features:

Automatic state creation and management
Sample rate propagation to all states
State reset for all functions
Integration with EquationParser
Band-limited oscillator table support

The host maintains a map of state objects, creating them on-demand when functions are first called and reusing them for subsequent calls to maintain continuity (e.g., filter history, oscillator phase).

See also: FuncState, AudioEquationParser, EquationParser

Member Function Documentation

◆ setSampleRate()

void AudioFunctionHost::setSampleRate ( double sr )

◆ getSampleRate()

double AudioFunctionHost::getSampleRate ( )

References sampleRate.

◆ reset()

void AudioFunctionHost::reset ( )

◆ addConstants()

void AudioFunctionHost::addConstants ( gin::EquationParser & )

◆ addUtilities()

void AudioFunctionHost::addUtilities ( gin::EquationParser & )

◆ addOscillatorFunctions()

void AudioFunctionHost::addOscillatorFunctions ( gin::EquationParser & )

◆ addSynthFilterFunctions()

void AudioFunctionHost::addSynthFilterFunctions ( gin::EquationParser & )

◆ addEffectFilterFunctions()

void AudioFunctionHost::addEffectFilterFunctions ( gin::EquationParser & )

◆ getFuncParams()

template<class T >

T * AudioFunctionHost::getFuncParams	(	int	i,
		double	sr
	)

References funcStates.

Member Data Documentation

◆ lookupTables

gin::BandLimitedLookupTables* AudioFunctionHost::lookupTables = nullptr

◆ funcStates

std::map<int, std::unique_ptr<FuncState> > AudioFunctionHost::funcStates

protected

Referenced by getFuncParams().

◆ sampleRate

double AudioFunctionHost::sampleRate = 44100.0