Chronometer digital unit which emits 1/true/"on" for one frame, at a regular pace. More...

#include <Metronome.h>

Inheritance diagram for pq::Metronome:

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Collaboration diagram for pq::Metronome:

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Public Member Functions
	Metronome (Engine &engine=Engine::primary())
	Constructor.

	Metronome (float period, Engine &engine=Engine::primary())
	Constructor.

virtual bool	isOn ()
	Returns true iff the metronome fires.

virtual void	onBang (EventCallback callback)
	Registers event callback on metronome tick ("bang") event.

virtual bool	isOff ()
	Returns true iff the input is "off".

virtual int	getInt ()
	Returns value as integer (0 or 1).

virtual float	get ()
	Returns value as float (either 0.0 or 1.0).

virtual bool	on ()
	Sets output to "on" (ie. true, 1).

virtual bool	off ()
	Sets output to "off" (ie. false, 0).

virtual float	put (float value)
	Pushes value into the unit.

virtual bool	putOn (bool value)
	Pushes value into the unit.

virtual float	mapTo (float toLow, float toHigh)
	Maps value to new range.

	operator bool ()
	Operator that allows usage in conditional expressions.

	operator float ()

virtual void	clearEvents ()

float	seconds () const
	Returns engine time in seconds.

uint32_t	milliSeconds () const
	Returns engine time in milliseconds.

uint64_t	microSeconds () const
	Returns engine time in microseconds.

unsigned long	nSteps () const
	Returns number of engine steps.

float	sampleRate () const
	Returns engine sample rate.

float	samplePeriod () const
	Returns enginesample period.

virtual void	period (float period)
	Sets the period (in seconds).

virtual float	period () const
	Returns the period (in seconds).

virtual void	frequency (float frequency)
	Sets the frequency (in Hz).

virtual float	frequency () const
	Returns the frequency (in Hz).

virtual void	bpm (float bpm)
	Sets the frequency in beats-per-minute.

virtual float	bpm () const
	Returns the frequency (in BPM).

virtual void	phase (float phase)
	Sets the phase at % of period.

virtual float	phase () const
	Returns the phase (in % of period).

virtual void	phaseShift (float phaseShift)
	Sets the phase shift (ie.

virtual float	phaseShift () const
	Returns the phase shift (ie.

virtual float	timeToPhase (float time) const
	Utility function to convert time to phase.

virtual void	setTime (float time)
	Forces current time (in seconds).

virtual void	addTime (float time)
	Adds time to current time (in seconds).

virtual bool	isRunning () const
	Returns true iff the wave is currently running.

virtual bool	isForward () const
	Returns true iff the wave is moving forward in time.

virtual void	setForward (bool isForward)
	Sets the direction of oscillation.

virtual void	forward ()
	Sets the direction of oscillation to move forward in time.

virtual void	reverse ()
	Sets the direction of oscillation to move backward in time.

virtual void	toggleReverse ()
	Toggles the direction of oscillation.

virtual float	randomness () const
	Returns the randomness level in [0, 1].

virtual void	randomize (float randomness=1.0f)
	Sets the randomness level in [0, 1] (0: no randomness, 1: full randomness).

virtual void	noRandomize ()
	Disables randomness.

virtual void	start ()
	Starts/restarts the chronometer.

virtual void	stop ()
	Interrupts the chronometer and resets to zero.

virtual void	pause ()
	Interrupts the chronometer.

virtual void	resume ()
	Resumes process.

virtual void	togglePause ()
	Toggles pause/unpause.

Static Public Member Functions
static bool	analogToDigital (float f)
	Converts analog (float) value to digital (bool) value.

static float	digitalToAnalog (bool b)
	Converts digital (bool) value to analog (float) value.

Protected Member Functions
virtual void	begin ()

virtual void	step ()

virtual bool	eventTriggered (EventType eventType)
	Returns true iff an event of a certain type has been triggered.

virtual void	onEvent (EventCallback callback, EventType eventType)
	Registers event callback.

Engine *	engine () const
	Returns the engine that owns this unit.

void	_stepPhase (float deltaTimeSecondsTimesFixed32Max)

virtual void	_setPhase32 (q0_32u_t phase32)

virtual void	_setRunning (bool isRunning)

void	_randomPickNext ()

Protected Attributes
float	_period

float	_frequency

float	_phaseShiftOrRandomFrequencyRatio = 0

q0_32u_t	_phase32

bool	_overflowed: 1

bool	_isRunning: 1

bool	_isForward: 1

bool	_valueNeedsUpdate: 1

uint8_t	_randomness: 4

Detailed Description

Chronometer digital unit which emits 1/true/"on" for one frame, at a regular pace.

Constructor & Destructor Documentation

◆ Metronome() [1/2]

pq::Metronome::Metronome ( Engine & engine = Engine::primary() )

Constructor.

Parameters

engine the engine running this unit

◆ Metronome() [2/2]

pq::Metronome::Metronome	(	float	period,
		Engine &	engine = `Engine::primary()`
	)

Constructor.

Parameters

period	the period of oscillation (in seconds)
engine	the engine running this unit

Member Function Documentation

◆ _setRunning()

void pq::AbstractOscillator::_setRunning ( bool isRunning )

protectedvirtualinherited

Implements pq::Timeable.

◆ addTime()

void pq::AbstractOscillator::addTime ( float time )

virtualinherited

Adds time to current time (in seconds).

Warning: This function is disabled if randomness() > 0.

Implements pq::Timeable.

◆ begin()

void pq::Metronome::begin ( )

protectedvirtual

Reimplemented from pq::Unit.

◆ bpm()

void pq::AbstractOscillator::bpm ( float bpm )

virtualinherited

Sets the frequency in beats-per-minute.

Parameters

bpm	the frequency of oscillation (in BPM)

◆ eventTriggered()

bool pq::Metronome::eventTriggered ( EventType eventType )

protectedvirtual

Returns true iff an event of a certain type has been triggered.

Reimplemented from pq::Unit.

◆ frequency()

void pq::AbstractOscillator::frequency ( float frequency )

virtualinherited

Sets the frequency (in Hz).

Parameters

frequency the frequency of oscillation (in Hz)

◆ get()

virtual float pq::DigitalUnit::get ( )

inlinevirtualinherited

Returns value as float (either 0.0 or 1.0).

Reimplemented from pq::Chainable.

◆ isOn()

virtual bool pq::Metronome::isOn ( )

inlinevirtual

Returns true iff the metronome fires.

Reimplemented from pq::DigitalUnit.

◆ isRunning()

virtual bool pq::AbstractOscillator::isRunning ( ) const

inlinevirtualinherited

Returns true iff the wave is currently running.

Implements pq::Timeable.

◆ mapTo()

virtual float pq::DigitalUnit::mapTo	(	float	toLow,
		float	toHigh
	)

inlinevirtualinherited

Maps value to new range.

Reimplemented from pq::Chainable.

◆ pause()

void pq::Timeable::pause ( )

virtualinherited

Interrupts the chronometer.

Reimplemented in pq::AbstractChronometer.

◆ period()

void pq::AbstractOscillator::period ( float period )

virtualinherited

Sets the period (in seconds).

Parameters

period the period of oscillation (in seconds)

◆ phase()

void pq::AbstractOscillator::phase ( float phase )

virtualinherited

Sets the phase at % of period.

Parameters

phase the phase (in % of period)

◆ phaseShift() [1/2]

float pq::AbstractOscillator::phaseShift ( ) const

virtualinherited

Returns the phase shift (ie.

the offset, in % of period).

Warning: This function always returns 0 when randomness() > 0.

◆ phaseShift() [2/2]

void pq::AbstractOscillator::phaseShift ( float phaseShift )

virtualinherited

Sets the phase shift (ie.

the offset, in % of period).

Parameters

phaseShift the phase shift (in % of period)

Warning: This function is disabled if randomness() > 0.

◆ put()

virtual float pq::DigitalUnit::put ( float value )

inlinevirtualinherited

Pushes value into the unit.

Parameters

value the value sent to the unit

Returns: the new value of the unit

Reimplemented from pq::Chainable.

Reimplemented in pq::PeakDetector.

◆ putOn()

virtual bool pq::DigitalUnit::putOn ( bool value )

inlinevirtualinherited

Pushes value into the unit.

Parameters

value the value sent to the unit

Returns: the new value of the unit

Reimplemented in pq::DigitalSource.

◆ resume()

void pq::Timeable::resume ( )

virtualinherited

Resumes process.

Reimplemented in pq::AbstractChronometer.

◆ setForward()

virtual void pq::AbstractOscillator::setForward ( bool isForward )

inlinevirtualinherited

Sets the direction of oscillation.

Parameters

isForward true iff the wave is moving forward in time

◆ setTime()

void pq::AbstractOscillator::setTime ( float time )

virtualinherited

Forces current time (in seconds).

Warning: This function is disabled if randomness() > 0.

Implements pq::Timeable.

◆ start()

void pq::Timeable::start ( )

virtualinherited

Starts/restarts the chronometer.

Reimplemented in pq::AbstractTimer, and pq::Ramp.

◆ step()

void pq::Metronome::step ( )

protectedvirtual

Reimplemented from pq::Unit.

◆ timeToPhase()

float pq::AbstractOscillator::timeToPhase ( float time ) const

virtualinherited

Utility function to convert time to phase.

Parameters

time	relative time in seconds

Returns: the equivalent phase

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

/home/tats/Documents/workspace/Plaquette/src/Metronome.h
/home/tats/Documents/workspace/Plaquette/src/Metronome.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Metronome() [1/2]

◆ Metronome() [2/2]

Member Function Documentation

◆ _setRunning()

◆ addTime()

◆ begin()

◆ bpm()

◆ eventTriggered()

◆ frequency()

◆ get()

◆ isOn()

◆ isRunning()

◆ mapTo()

◆ pause()

◆ period()

◆ phase()

◆ phaseShift() [1/2]

◆ phaseShift() [2/2]

◆ put()

◆ putOn()

◆ resume()

◆ setForward()

◆ setTime()

◆ start()

◆ step()

◆ timeToPhase()