reSIDfp::Filter Class Reference

#include <Filter.h>

Inheritance diagram for reSIDfp::Filter:

Public Member Functions
	Filter (const FilterModelConfig &fmc, const Integrator &hpIntegrator, const Integrator &bpIntegrator)
uint16_t	clock (Voice &voice1, Voice &voice2, Voice &voice3)
void	enable (bool enable)
void	reset ()
void	writeFC_LO (uint8_t fc_lo)
void	writeFC_HI (uint8_t fc_hi)
void	writeRES_FILT (uint8_t res_filt)
void	writeMODE_VOL (uint8_t mode_vol)
void	input (int16_t input)
void	restart ()

Protected Member Functions
virtual void	updateCenterFrequency ()=0
void	updateResonance (uint8_t res)
void	updateMixing ()
unsigned int	getFC () const
virtual void	restartIntegrators ()=0
int32_t	getNormalizedVoice (float v, uint8_t env) const
virtual int32_t	getNormalizedMixerVoice (float v, uint8_t env) const =0

Friends
class	State

Detailed Description

SID filter base class

Member Function Documentation

clock()

RESIDFP_INLINE uint16_t reSIDfp::Filter::clock	(	Voice &	voice1,
		Voice &	voice2,
		Voice &	voice3
	)

SID clocking - 1 cycle

Parameters

voice1	voice 1 in
voice2	voice 2 in
voice3	voice 3 in

Returns

filtered output, unsigned 16 bit

enable()

void reSIDfp::Filter::enable

(

bool

enable

)

Enable filter.

Parameters

enable

getFC()

unsigned int reSIDfp::Filter::getFC ( ) const

inlineprotected

Get the filter cutoff register value

input()

void reSIDfp::Filter::input ( int16_t  input )

inline

Apply a signal to EXT-IN

Parameters

input

a signed 16 bit sample

reset()

void reSIDfp::Filter::reset

(

)

SID reset.

updateCenterFrequency()

virtual void reSIDfp::Filter::updateCenterFrequency ( )

protectedpure virtual

Update filter cutoff frequency.

Implemented in reSIDfp::Filter6581.

updateMixing()

void reSIDfp::Filter::updateMixing ( )

protected

Mixing configuration modified (offsets change)

updateResonance()

void reSIDfp::Filter::updateResonance ( uint8_t  res )

inlineprotected

Update filter resonance.

Parameters

res	the new resonance value

writeFC_HI()

void reSIDfp::Filter::writeFC_HI

(

uint8_t

fc_hi

)

Write Frequency Cutoff High register.

Parameters

fc_hi

Frequency Cutoff High-Byte

writeFC_LO()

void reSIDfp::Filter::writeFC_LO

(

uint8_t

fc_lo

)

Write Frequency Cutoff Low register.

Parameters

fc_lo

Frequency Cutoff Low-Byte

writeMODE_VOL()

void reSIDfp::Filter::writeMODE_VOL

(

uint8_t

mode_vol

)

Write filter Mode/Volume register.

Parameters

mode_vol

Filter Mode/Volume

writeRES_FILT()

void reSIDfp::Filter::writeRES_FILT

(

uint8_t

res_filt

)

Write Resonance/Filter register.

Parameters

res_filt

Resonance/Filter

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The documentation for this class was generated from the following files:

• Filter.h
• Filter.cpp