lerp_lut.c File Reference

Linear interpolation lookup table (LUT). More...

#include "lerp_lut.h"

Functions
float	lut_lookup (const lerp_lut_t *lut, float key)
	Lookup a value in a linear interpolation lookup table (LUT).

Detailed Description

Linear interpolation lookup table (LUT).

Author

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

Function Documentation

lut_lookup()

float lut_lookup	(	const lerp_lut_t *	lut,
		float	key )

Lookup a value in a linear interpolation lookup table (LUT).

This function performs a binary search to find the appropriate interval in the LUT and then linearly interpolates between the two nearest entries.

Parameters

lut	Pointer to the LUT.
key	The key to look up.

Returns

The interpolated value.