]> icculus.org git repositories - icculus/iodoom3.git/blob - neo/sound/OggVorbis/vorbissrc/smallft.h
Various Mac OS X tweaks to get this to build. Probably breaking things.
[icculus/iodoom3.git] / neo / sound / OggVorbis / vorbissrc / smallft.h
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 1994-2002             *
9  * by the XIPHOPHORUS Company http://www.xiph.org/                  *
10  *                                                                  *
11  ********************************************************************
12
13  function: fft transform
14  last mod: $Id: smallft.h,v 1.12 2002/07/11 06:40:50 xiphmont Exp $
15
16  ********************************************************************/
17
18 #ifndef _V_SMFT_H_
19 #define _V_SMFT_H_
20
21 #include "../vorbis/codec.h"
22
23 typedef struct {
24   int n;
25   float *trigcache;
26   int *splitcache;
27 } drft_lookup;
28
29 extern void drft_forward(drft_lookup *l,float *data);
30 extern void drft_backward(drft_lookup *l,float *data);
31 extern void drft_init(drft_lookup *l,int n);
32 extern void drft_clear(drft_lookup *l);
33
34 #endif