MidiLearn Class Reference

MIDI Learn system for mapping MIDI CC messages to plugin parameters. More...

#include <gin_midilearn.h>

Public Member Functions
	MidiLearn (gin::Processor &p)
	~MidiLearn ()
void	setSampleRate (double sr)
void	setMapping (int ccNumber, gin::Parameter *param)
void	clearMapping (int ccNumber)
void	clearMapping (gin::Parameter *param)
gin::Parameter *	getMapping (int ccNumber) const
int	getMappedCC (gin::Parameter *param) const
void	startLearning (gin::Parameter *param)
void	cancelLearning ()
bool	isLearning () const
gin::Parameter *	getLearningParameter () const
void	processBlock (juce::MidiBuffer &midi, int numSamples)
void	loadState (const juce::ValueTree &vt)
void	saveState (juce::ValueTree &vt)

Static Public Member Functions
static bool	isValidCC (int ccNumber)
	Returns true if the CC number is valid for MIDI learn.

Detailed Description

MIDI Learn system for mapping MIDI CC messages to plugin parameters.

MidiLearn provides a way to associate MIDI CC controllers (0-127) with plugin parameters. When a CC message is received, it automatically updates the corresponding parameter value and handles proper host notification with gesture begin/end tracking.

Key Features:

• Maps 128 MIDI CC controllers to parameters
• Automatic host notification for parameter changes
• Gesture timeout (333ms) for grouping rapid CC changes
• State persistence via ValueTree

Usage:

MidiLearn midiLearn(processor);
 
// Setup
midiLearn.setSampleRate(44100.0);
midiLearn.setMapping(1, modWheelParam);  // CC1 -> mod wheel param
 
// In processBlock
midiLearn.processBlock(midiBuffer, numSamples);
 
// Save/load state
midiLearn.saveState(state);
midiLearn.loadState(state);

See also

Parameter, Processor

Constructor & Destructor Documentation

MidiLearn()

MidiLearn::MidiLearn

(

gin::Processor &

p

)

~MidiLearn()

MidiLearn::~MidiLearn

(

)

Member Function Documentation

setSampleRate()

void MidiLearn::setSampleRate

(

double

sr

)

setMapping()

void MidiLearn::setMapping	(	int	ccNumber,
		gin::Parameter *	param
	)

clearMapping() [1/2]

void MidiLearn::clearMapping

(

int

ccNumber

)

clearMapping() [2/2]

void MidiLearn::clearMapping

(

gin::Parameter *

param

)

getMapping()

gin::Parameter * MidiLearn::getMapping

(

int

ccNumber

)

const

getMappedCC()

int MidiLearn::getMappedCC

(

gin::Parameter *

param

)

const

startLearning()

void MidiLearn::startLearning

(

gin::Parameter *

param

)

cancelLearning()

void MidiLearn::cancelLearning

(

)

isLearning()

bool MidiLearn::isLearning

(

)

const

getLearningParameter()

gin::Parameter * MidiLearn::getLearningParameter

(

)

const

processBlock()

void MidiLearn::processBlock	(	juce::MidiBuffer &	midi,
		int	numSamples
	)

loadState()

void MidiLearn::loadState

(

const juce::ValueTree &

vt

)

saveState()

void MidiLearn::saveState

(

juce::ValueTree &

vt

)

isValidCC()

static bool MidiLearn::isValidCC ( int  ccNumber )

static

Returns true if the CC number is valid for MIDI learn.

Excludes CC 0 (Bank Select MSB), CC 32 (Bank Select LSB), and CC 120-127 (Channel Mode Messages).

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

• gin_midilearn.h