math.c File Reference

Implementation of mathematical functions. More...

#include "math.h"
#include "midi.h"

Include dependency graph for math.c:

Functions
void	init_linear_from_midi (struct linear_range *const config)
	Initializes a linear function to map from MIDI values to an arbitrary integer range. More...
void	init_linear_to_midi (struct linear_range *config)
	Initializes a linear function to map from an arbitrary integer range to MIDI values. More...
uint16_t	linear_from_midi (const struct linear_range *const config, midi_value_t midi_value)
	Yields an integer in the configured range that corresponds to the given MIDI value. More...
midi_value_t	linear_to_midi (const struct linear_range *config, uint16_t input)
	Yields the MIDI value [0,127] from a given integer in the configured range. More...

Detailed Description

Implementation of mathematical functions.

Function Documentation

init_linear_from_midi()

void init_linear_from_midi

(

struct linear_range *

config

)

Initializes a linear function to map from MIDI values to an arbitrary integer range.

Parameters

config

the configuration of the linear function to initialize

init_linear_to_midi()

void init_linear_to_midi

(

struct linear_range *

config

)

Initializes a linear function to map from an arbitrary integer range to MIDI values.

Parameters

config

the configuration of the linear function to initialize

linear_from_midi()

uint16_t linear_from_midi	(	const struct linear_range *	config,
		midi_value_t	midi_value
	)

Yields an integer in the configured range that corresponds to the given MIDI value.

Parameters

config	the configuration of the linear function
midi_value	the MIDI value to convert [0,127]

Returns

the input scaled to the configured range

linear_to_midi()

midi_value_t linear_to_midi	(	const struct linear_range *	config,
		uint16_t	input
	)

Yields the MIDI value [0,127] from a given integer in the configured range.

Parameters

config	the configuration of the linear function
input	the integer to convert to a MIDI value

Returns

the input scaled to the MIDI range [0,127]