00001 /******************************************************************** 00002 * * 00003 * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * 00004 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * 00005 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * 00006 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * 00007 * * 00008 * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2002 * 00009 * by the XIPHOPHORUS Company http://www.xiph.org/ * 00010 * * 00011 ******************************************************************** 00012 00013 function: lookup based functions 00014 last mod: $Id: lookup.h 7187 2004-07-20 07:24:27Z xiphmont $ 00015 00016 ********************************************************************/ 00017 00018 #ifndef _V_LOOKUP_H_ 00019 00020 #ifdef FLOAT_LOOKUP 00021 extern float vorbis_coslook(float a); 00022 extern float vorbis_invsqlook(float a); 00023 extern float vorbis_invsq2explook(int a); 00024 extern float vorbis_fromdBlook(float a); 00025 #endif 00026 #ifdef INT_LOOKUP 00027 extern long vorbis_invsqlook_i(long a,long e); 00028 extern long vorbis_coslook_i(long a); 00029 extern float vorbis_fromdBlook_i(long a); 00030 #endif 00031 00032 #endif
1.6.2