lmms::VibratingString Class Reference

#include <VibratingString.h>

Classes
struct	DelayLine

Public Member Functions
	VibratingString ()=default
	VibratingString (float pitch, float pick, float pickup, const float *impulse, int len, sample_rate_t sampleRate, int oversample, float randomize, float stringLoss, float detune, bool state)
	~VibratingString ()=default
	VibratingString (const VibratingString &)=delete
VibratingString &	operator= (const VibratingString &)=delete
	VibratingString (VibratingString &&) noexcept=delete
VibratingString &	operator= (VibratingString &&) noexcept=default
sample_t	nextSample ()

Private Member Functions
std::unique_ptr< DelayLine >	initDelayLine (int len)
void	resample (const float *src, f_cnt_t srcFrames, f_cnt_t dstFrames)
void	setDelayLine (DelayLine *dl, int pick, const float *values, int len, float scale, bool state)
void	toBridgeUpdate (DelayLine *dl, sample_t insamp)
void	fromBridgeUpdate (DelayLine *dl, sample_t insamp)
sample_t	bridgeReflection (sample_t insamp)

Static Private Member Functions
static sample_t	dlAccess (DelayLine *dl, int position)
static sample_t	fromBridgeAccess (DelayLine *dl, int position)
static sample_t	toBridgeAccess (DelayLine *dl, int position)

Private Attributes
std::unique_ptr< DelayLine >	m_fromBridge
std::unique_ptr< DelayLine >	m_toBridge
int	m_pickupLoc
int	m_oversample
float	m_randomize
float	m_stringLoss
std::unique_ptr< float[]>	m_impulse
int	m_choice
float	m_state
std::unique_ptr< sample_t[]>	m_outsamp

Constructor & Destructor Documentation

VibratingString() [1/4]

lmms::VibratingString::VibratingString ( )

default

VibratingString() [2/4]

lmms::VibratingString::VibratingString	(	float	pitch,
		float	pick,
		float	pickup,
		const float *	impulse,
		int	len,
		sample_rate_t	sampleRate,
		int	oversample,
		float	randomize,
		float	stringLoss,
		float	detune,
		bool	state )

~VibratingString()

lmms::VibratingString::~VibratingString ( )

default

VibratingString() [3/4]

lmms::VibratingString::VibratingString ( const VibratingString & )

delete

VibratingString() [4/4]

lmms::VibratingString::VibratingString ( VibratingString && )

deletenoexcept

Member Function Documentation

bridgeReflection()

sample_t lmms::VibratingString::bridgeReflection ( sample_t insamp )

inlineprivate

dlAccess()

sample_t lmms::VibratingString::dlAccess ( DelayLine * dl, int position )

inlinestaticprivate

dlAccess(dl, position); Returns sample "position" samples into delay-line's past. Position "0" points to the most recently inserted sample.

fromBridgeAccess()

sample_t lmms::VibratingString::fromBridgeAccess ( DelayLine * dl, int position )

inlinestaticprivate

fromBridgeAccess(dl, position); Returns spatial sample at position "position", where position zero is equal to the current upper delay-line pointer position (x = 0). In a right-going delay-line, position increases to the right, and delay increases to the right => left = past and right = future.

fromBridgeUpdate()

void lmms::VibratingString::fromBridgeUpdate ( DelayLine * dl, sample_t insamp )

inlineprivate

fromBridgeUpdate(dl, insamp); Decrements current upper delay-line pointer position (i.e. the wave travels one sample to the right), moving it to the "effective" x = 0 position for the next iteration. The "bridge-reflected" sample from lower delay-line is then placed into this position.

initDelayLine()

std::unique_ptr< VibratingString::DelayLine > lmms::VibratingString::initDelayLine ( int len )

private

nextSample()

sample_t lmms::VibratingString::nextSample ( )

inline

operator=() [1/2]

VibratingString & lmms::VibratingString::operator= ( const VibratingString & )

delete

operator=() [2/2]

VibratingString & lmms::VibratingString::operator= ( VibratingString && )

defaultnoexcept

resample()

void lmms::VibratingString::resample ( const float * src, f_cnt_t srcFrames, f_cnt_t dstFrames )

private

setDelayLine()

void lmms::VibratingString::setDelayLine ( DelayLine * dl, int pick, const float * values, int len, float scale, bool state )

inlineprivate

setDelayLine initializes the string with an impulse at the pick position unless the impulse is longer than the string, in which case the impulse gets truncated.

toBridgeAccess()

sample_t lmms::VibratingString::toBridgeAccess ( DelayLine * dl, int position )

inlinestaticprivate

toBridgeAccess(dl, position); Returns spatial sample at position "position", where position zero is equal to the current lower delay-line pointer position (x = 0). In a left-going delay-line, position increases to the right, and delay DEcreases to the right => left = future and right = past.

toBridgeUpdate()

void lmms::VibratingString::toBridgeUpdate ( DelayLine * dl, sample_t insamp )

inlineprivate

toBridgeUpdate(dl, insamp); Places "nut-reflected" sample from upper delay-line into current lower delay-line pointer position (which represents x = 0 position). The pointer is then incremented (i.e. the wave travels one sample to the left), turning the previous position into an "effective" x = L position for the next iteration.

Member Data Documentation

m_choice

int lmms::VibratingString::m_choice

private

m_fromBridge

std::unique_ptr<DelayLine> lmms::VibratingString::m_fromBridge

private

m_impulse

std::unique_ptr<float[]> lmms::VibratingString::m_impulse

private

m_outsamp

std::unique_ptr<sample_t[]> lmms::VibratingString::m_outsamp

private

m_oversample

int lmms::VibratingString::m_oversample

private

m_pickupLoc

int lmms::VibratingString::m_pickupLoc

private

m_randomize

float lmms::VibratingString::m_randomize

private

m_state

float lmms::VibratingString::m_state

private

m_stringLoss

float lmms::VibratingString::m_stringLoss

private

m_toBridge

std::unique_ptr<DelayLine> lmms::VibratingString::m_toBridge

private

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

• plugins/Vibed/VibratingString.h
• plugins/Vibed/VibratingString.cpp