rescale.h File Reference

Utility header to linearly map values from one range to another. More...

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Macros
#define	RESCALE(input, input_min, input_max, output_min, output_max)

Functions
static float	rescale_float (float input, float input_min, float input_max, float output_min, float output_max)
static signed int	rescale_signed (signed int input, signed int input_min, signed int input_max, signed int output_min, signed int output_max)
static unsigned int	rescale_unsigned (unsigned int input, unsigned int input_min, unsigned int input_max, unsigned int output_min, unsigned int output_max)

Detailed Description

Utility header to linearly map values from one range to another.

Typesafe, supporting ints and floats. Integer promotions also cover int8_t, uint8_t, int16_t, uint16_t

Author

Irving Wang (irvin.nosp@m.gw@p.nosp@m.urdue.nosp@m..edu)

Macro Definition Documentation

RESCALE

#define RESCALE	(		input,
			input_min,
			input_max,
			output_min,
			output_max )

Value:

    _Generic((input) + (input_min) + (input_max) + (output_min) + (output_max), \
    signed int: rescale_signed, \
    unsigned int: rescale_unsigned, \
    float: rescale_float \
)(input, input_min, input_max, output_min, output_max)

Function Documentation

rescale_float()

static float rescale_float ( float input, float input_min, float input_max, float output_min, float output_max )

inlinestatic

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rescale_signed()

static signed int rescale_signed ( signed int input, signed int input_min, signed int input_max, signed int output_min, signed int output_max )

inlinestatic

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rescale_unsigned()

static unsigned int rescale_unsigned ( unsigned int input, unsigned int input_min, unsigned int input_max, unsigned int output_min, unsigned int output_max )

inlinestatic

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