Resid::SID Class Reference

Inheritance diagram for Resid::SID:

Public Member Functions
	SID (::SID::Config::SidType videoSystem)
void	enable_filter (bool enable)
void	enable_external_filter (bool enable)
bool	set_sampling_parameters (double clock_freq, double sample_freq, double pass_freq=-1, double filter_scale=0.97)
void	updateClock (cycle_count delta_t)
int	updateClock (cycle_count &delta_t, short *buf, int n, int interleave=1)
bool	init () override
void	reset () override
reg8	read (reg8 offset)
void	writeReg (int offset, int value) override
int	output ()
bool	isStereo () const override
Public Member Functions inherited from Audio::Chip
void	start (TimerCallback *callback, int timerFrequency)
void	stop ()
Public Member Functions inherited from Audio::EmulatedChip
void	setCallbackFrequency (int timerFrequency) override
int	readBuffer (int16 *buffer, const int numSamples) override
int	getRate () const override
bool	endOfData () const override

Protected Member Functions
void	generateSamples (int16 *buffer, int numSamples) override
Protected Member Functions inherited from Audio::EmulatedChip
void	startCallbacks (int timerFrequency) override final
void	stopCallbacks () override final
Protected Member Functions inherited from Audio::AudioStream
virtual bool	endOfStream () const

Protected Attributes
Voice	voice [3]
Filter	filter
ExternalFilter	extfilt
reg8	bus_value
cycle_count	bus_value_ttl
double	clock_frequency
cycle_count	cycles_per_sample
cycle_count	sample_offset
short	sample_prev
::SID::Config::SidType	_videoSystem
cycle_count	_cpuCyclesLeft
Protected Attributes inherited from Audio::Chip
Common::ScopedPtr< TimerCallback >	_callback

Static Protected Attributes
static const int	FIXP_SHIFT
static const int	FIXP_MASK
Static Protected Attributes inherited from Audio::EmulatedChip
static const int	FIXP_SHIFT = 16

Additional Inherited Members
Public Types inherited from Audio::Chip
typedef Common::Functor0< void >	TimerCallback

Member Function Documentation

init()

bool Resid::SID::init ( )

overridevirtual

Initializes the SID emulator.

Returns

true on success, false on failure

Implements SID::SID.

reset()

void Resid::SID::reset ( )

overridevirtual

Reinitializes the SID emulator

Implements SID::SID.

writeReg()

void Resid::SID::writeReg ( int  r, int  v  )

overridevirtual

Function to directly write to a specific SID register.

Parameters

r	hardware register number to write to
v	value, which will be written

Implements SID::SID.

isStereo()

bool Resid::SID::isStereo ( ) const

inlineoverridevirtual

Check whether this is a stereo stream.

Implements Audio::AudioStream.

generateSamples()

void Resid::SID::generateSamples ( int16 *  buffer, int  numSamples  )

overrideprotectedvirtual

Read up to 'length' samples.

Data will be in native endianess, 16 bit per sample, signed. For stereo chips, buffer will be filled with interleaved left and right channel samples, starting with a left sample. Furthermore, the samples in the left and right are summed up. So if you request 4 samples from a stereo chip, you will get a total of two left channel and two right channel samples.

Implements Audio::EmulatedChip.

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

• audio/softsynth/sid.h