1 | /******************************************************************** |
2 | * * |
3 | * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * |
4 | * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * |
5 | * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * |
6 | * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * |
7 | * * |
8 | * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2009 * |
9 | * by the Xiph.Org Foundation https://xiph.org/ * |
10 | * * |
11 | ******************************************************************** |
12 | |
13 | function: lookup based functions |
14 | |
15 | ********************************************************************/ |
16 | |
17 | #ifndef _V_LOOKUP_H_ |
18 | |
19 | #ifdef FLOAT_LOOKUP |
20 | extern float vorbis_coslook(float a); |
21 | extern float vorbis_invsqlook(float a); |
22 | extern float vorbis_invsq2explook(int a); |
23 | extern float vorbis_fromdBlook(float a); |
24 | #endif |
25 | #ifdef INT_LOOKUP |
26 | extern long vorbis_invsqlook_i(long a,long e); |
27 | extern long vorbis_coslook_i(long a); |
28 | extern float vorbis_fromdBlook_i(long a); |
29 | #endif |
30 | |
31 | #endif |
32 | |