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 http://www.xiph.org/ * 10 * * 11 ******************************************************************** 12 13 function: lookup based functions 14 last mod: $Id: lookup.h 16227 2009-07-08 06:58:46Z xiphmont $ 15 16 ********************************************************************/ 17 18#ifndef _V_LOOKUP_H_ 19 20#ifdef FLOAT_LOOKUP 21extern float vorbis_coslook(float a); 22extern float vorbis_invsqlook(float a); 23extern float vorbis_invsq2explook(int a); 24extern float vorbis_fromdBlook(float a); 25#endif 26#ifdef INT_LOOKUP 27extern long vorbis_invsqlook_i(long a,long e); 28extern long vorbis_coslook_i(long a); 29extern float vorbis_fromdBlook_i(long a); 30#endif 31 32#endif 33