blob: ce3d77f68801e00387d782e1d6a83cc8e5749377 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
//=========================================================
// MusE
// Linux Music Editor
// $Id: ./plugins/freeverb/denormals.h $
//
// Written by Jezar at Dreampoint, June 2000
// http://www.dreampoint.co.uk
// Based on IS_DENORMAL macro by Jon Watte
// This code is public domain
//
//=========================================================
// Macro for killing denormalled numbers
//
#ifndef _denormals_
#define _denormals_
// this does not work with at least gcc3.3 and -O2:
// #define undenormalise(sample) if(((*(unsigned int*)&sample)&0x7f800000)==0) sample=0.0f
//
// from Laurent de Soras Paper: Denormal numbers in floating point
// signal processing applications
// (ws)
#define undenormalise(sample) \
{ \
float anti_denormal = 1e-18; \
sample += anti_denormal; \
sample -= anti_denormal; \
}
#endif//_denormals_
//ends
|
