quant.c File Reference

#include "vadpcm.h"

Functions
s16	qsample (f32 x, s32 scale)
	Compute x / scale rounded to the nearest integer, with x.5 (fuzzy with an epsilon of 1e-7) rounding towards zero. More...
void	clamp (s32 fs, f32 *e, s32 *ie, s32 bits)
	Round all ('fs' many) values in 'e' to the nearest 'bits'-bit integer, outputting to 'ie'. More...
s32	clip (s32 ix, s32 llevel, s32 ulevel)
	Clamp ix to within [llevel, ulevel]. More...

Function Documentation

clamp()

void clamp	(	s32	fs,
		f32 *	e,
		s32 *	ie,
		s32	bits
	)

Round all ('fs' many) values in 'e' to the nearest 'bits'-bit integer, outputting to 'ie'.

clip()

s32 clip	(	s32	ix,
		s32	llevel,
		s32	ulevel
	)

Clamp ix to within [llevel, ulevel].

qsample()

s16 qsample	(	f32	x,
		s32	scale
	)

Compute x / scale rounded to the nearest integer, with x.5 (fuzzy with an epsilon of 1e-7) rounding towards zero.