InstrumentLayer is part of an instrument
each layer has it's own :
gain which is the ration between the input sample and the output signal,
pitch which allows you to play the sample at a faster or lower frequency,
start velocity and end velocity which allows you to chose between a layer or another within an instrument by changing the velocity of the played note. More...

#include <InstrumentLayer.h>

Inheritance diagram for InstrumentLayer:

Public Member Functions
	InstrumentLayer (std::shared_ptr< InstrumentLayer > other)
	copy constructor, will be initialized with an empty sample

	InstrumentLayer (std::shared_ptr< InstrumentLayer > other, std::shared_ptr< Sample > sample)
	copy constructor

	InstrumentLayer (std::shared_ptr< Sample > sample)
	constructor

	~InstrumentLayer ()
	destructor

float	get_end_velocity () const
	get the end velocity of the layer

float	get_gain () const
	get the gain of the layer

float	get_pitch () const
	get the pitch of the layer

std::shared_ptr< Sample >	get_sample () const
	get the sample of the layer

float	get_start_velocity () const
	get the start velocity of the layer

void	load_sample (float fBpm=120)
	Calls the H2Core::Sample::load() member function of __sample.

void	save_to (XMLNode *node, bool bFull=false)
	save the instrument layer within the given XMLNode

void	set_end_velocity (float end)
	set the end velocity of the layer

void	set_gain (float gain)
	set the gain of the layer

void	set_pitch (float pitch)
	set the pitch of the layer

void	set_sample (std::shared_ptr< Sample > sample)
	set the sample of the layer

void	set_start_velocity (float start)
	set the start ivelocity of the layer

QString	toQString (const QString &sPrefix="", bool bShort=true) const override
	Formatted string version for debugging purposes.

void	unload_sample ()

Public Member Functions inherited from Object< InstrumentLayer >
	Object ()

	Object (const Object< InstrumentLayer > &other)

Public Member Functions inherited from Base
	Base ()

	Base (const Base &other)

virtual const char *	class_name () const

void	logBacktrace () const
	Print the current stack at point into the debug log.

void	Print (bool bShort=true) const
	Prints content of toQString() via DEBUGLOG.

Static Public Member Functions
static std::shared_ptr< InstrumentLayer >	load_from (XMLNode *pNode, const QString &sDrumkitPath, const License &drumkitLicense=License(), bool bSilent=false)
	load an instrument layer from an XMLNode

Static Public Member Functions inherited from Base
static const char *	_class_name ()
	return the class name

static QString	base_clock (const QString &sMsg)
	Measures the current time and stores it in __last_clock.

static QString	base_clock_in (const QString &sMsg)

static int	bootstrap (Logger *logger, bool count=false)
	must be called before any Object instantiation !

static bool	count_active ()

static int	getAliveObjectCount ()

static object_map_t	getObjectMap ()

static Logger *	logger ()
	return the logger instance

static int	objects_count ()

static void	printObjectMapDiff (object_map_t map)
	Creates the difference between a snapshot of the object map and its current state and prints it to std::cout.

static void	set_count (bool flag)
	enable/disable class instances counting

static void	write_objects_map_to (std::ostream &out, object_map_t *map=nullptr)
	output the full objects map to a given ostream

static void	write_objects_map_to_cerr ()
	output objects map to stderr

Private Attributes
float	__end_velocity
	the end velocity of the sample, 1.0 by default

float	__gain
	ratio between the input sample and the output signal, 1.0 by default

float	__pitch
	the frequency of the sample, 0.0 by default which means output pitch is the same as input pitch

std::shared_ptr< Sample >	__sample
	the underlaying sample

float	__start_velocity
	the start velocity of the sample, 0.0 by default

Additional Inherited Members
Static Public Attributes inherited from Base
static QString	sPrintIndention = " "
	String used to format the debugging string output of some core classes.

Protected Member Functions inherited from Object< InstrumentLayer >
	~Object ()

Protected Member Functions inherited from Base
	~Base ()

Static Protected Member Functions inherited from Base
static void	registerClass (const char name, const atomic_obj_cpt_t counters)

Static Protected Attributes inherited from Base
static bool	__count = false
	should we count class instances

static timeval	__last_clock = { 0, 0 }

static Logger *	__logger = nullptr

static bool	bLogColors = true

Detailed Description

InstrumentLayer is part of an instrument
each layer has it's own :
gain which is the ration between the input sample and the output signal,
pitch which allows you to play the sample at a faster or lower frequency,
start velocity and end velocity which allows you to chose between a layer or another within an instrument by changing the velocity of the played note.

so the only layer of an instrument should start at 0.0 and end at 1.0.

Definition at line 45 of file InstrumentLayer.h.

Constructor & Destructor Documentation

◆ InstrumentLayer() [1/3]

InstrumentLayer ( std::shared_ptr< Sample > sample )

constructor

Parameters

sample the sample to use

Definition at line 37 of file InstrumentLayer.cpp.

◆ InstrumentLayer() [2/3]

InstrumentLayer ( std::shared_ptr< InstrumentLayer > other )

copy constructor, will be initialized with an empty sample

Parameters

other the instrument layer to copy from

Definition at line 46 of file InstrumentLayer.cpp.

◆ InstrumentLayer() [3/3]

InstrumentLayer	(	std::shared_ptr< InstrumentLayer >	other,
		std::shared_ptr< Sample >	sample )

copy constructor

Parameters

other	the instrument layer to copy from
sample	the sample to use

Definition at line 55 of file InstrumentLayer.cpp.

◆ ~InstrumentLayer()

~InstrumentLayer ( )

destructor

Definition at line 64 of file InstrumentLayer.cpp.

Member Function Documentation

◆ get_end_velocity()

float get_end_velocity ( ) const

inline

get the end velocity of the layer

Definition at line 171 of file InstrumentLayer.h.

◆ get_gain()

float get_gain ( ) const

inline

get the gain of the layer

Definition at line 146 of file InstrumentLayer.h.

◆ get_pitch()

float get_pitch ( ) const

inline

get the pitch of the layer

Definition at line 151 of file InstrumentLayer.h.

◆ get_sample()

std::shared_ptr< Sample > get_sample ( ) const

inline

get the sample of the layer

Definition at line 176 of file InstrumentLayer.h.

◆ get_start_velocity()

float get_start_velocity ( ) const

inline

get the start velocity of the layer

Definition at line 161 of file InstrumentLayer.h.

◆ load_from()

std::shared_ptr< InstrumentLayer > load_from	(	XMLNode *	pNode,
		const QString &	sDrumkitPath,
		const License &	drumkitLicense = License(),
		bool	bSilent = false )

static

load an instrument layer from an XMLNode

Parameters

pNode	the XMLDode to read from
sDrumkitPath	the directory holding the drumkit data
drumkitLicense	License assigned to all Sample contain in the loaded InstrumentLayer.
bSilent	if set to true, all log messages except of errors and warnings are suppressed.

Returns: a new InstrumentLayer instance

Definition at line 96 of file InstrumentLayer.cpp.

◆ load_sample()

void load_sample ( float fBpm = 120 )

Calls the H2Core::Sample::load() member function of __sample.

Definition at line 82 of file InstrumentLayer.cpp.

◆ save_to()

void save_to	(	XMLNode *	node,
		bool	bFull = false )

save the instrument layer within the given XMLNode

Parameters

node	the XMLNode to feed
bFull	Whether to write all parameters of the contained Sample as well. This will be done when storing an Instrument as part of a Song but not when storing as part of a Drumkit.

Definition at line 252 of file InstrumentLayer.cpp.

◆ set_end_velocity()

void set_end_velocity ( float end )

inline

set the end velocity of the layer

Definition at line 166 of file InstrumentLayer.h.

◆ set_gain()

void set_gain ( float gain )

inline

set the gain of the layer

Definition at line 141 of file InstrumentLayer.h.

◆ set_pitch()

void set_pitch ( float pitch )

set the pitch of the layer

Definition at line 73 of file InstrumentLayer.cpp.

◆ set_sample()

void set_sample ( std::shared_ptr< Sample > sample )

set the sample of the layer

Definition at line 68 of file InstrumentLayer.cpp.

◆ set_start_velocity()

void set_start_velocity ( float start )

inline

set the start ivelocity of the layer

Definition at line 156 of file InstrumentLayer.h.

◆ toQString()

QString toQString	(	const QString &	sPrefix = "",
		bool	bShort = true ) const

overridevirtual

Formatted string version for debugging purposes.

Parameters

sPrefix	String prefix which will be added in front of every new line
bShort	Instead of the whole content of all classes stored as members just a single unique identifier will be displayed without line breaks.

Returns: String presentation of current object.

Reimplemented from Base.

Definition at line 323 of file InstrumentLayer.cpp.

◆ unload_sample()

void unload_sample ( )

Definition at line 89 of file InstrumentLayer.cpp.

Field Documentation

◆ __end_velocity

float __end_velocity

private

the end velocity of the sample, 1.0 by default

Definition at line 135 of file InstrumentLayer.h.

◆ __gain

float __gain

private

ratio between the input sample and the output signal, 1.0 by default

Definition at line 132 of file InstrumentLayer.h.

◆ __pitch

float __pitch

private

the frequency of the sample, 0.0 by default which means output pitch is the same as input pitch

Definition at line 133 of file InstrumentLayer.h.

◆ __sample

std::shared_ptr<Sample> __sample

private

the underlaying sample

Definition at line 136 of file InstrumentLayer.h.

◆ __start_velocity

float __start_velocity

private

the start velocity of the sample, 0.0 by default

Definition at line 134 of file InstrumentLayer.h.

Public Member Functions

Static Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ InstrumentLayer() [1/3]

◆ InstrumentLayer() [2/3]

◆ InstrumentLayer() [3/3]

◆ ~InstrumentLayer()

Member Function Documentation

◆ get_end_velocity()

◆ get_gain()

◆ get_pitch()

◆ get_sample()

◆ get_start_velocity()

◆ load_from()

◆ load_sample()

◆ save_to()

◆ set_end_velocity()

◆ set_gain()

◆ set_pitch()

◆ set_sample()

◆ set_start_velocity()

◆ toQString()

◆ unload_sample()

Field Documentation

◆ __end_velocity

◆ __gain

◆ __pitch

◆ __sample

◆ __start_velocity