godot/thirdparty/libvorbis/mdct.h

/********************************************************************
 *                                                                  *
 * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE.   *
 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
 *                                                                  *
 * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2009             *
 * by the Xiph.Org Foundation https://xiph.org/                     *
 *                                                                  *
 ********************************************************************

 function: modified discrete cosine transform prototypes

 ********************************************************************/

#ifndef _OGG_mdct_H_
#define _OGG_mdct_H_

#include "vorbis/codec.h"





/*#define MDCT_INTEGERIZED  <- be warned there could be some hurt left here*/
#ifdef MDCT_INTEGERIZED

#define DATA_TYPE …
#define REG_TYPE …
#define TRIGBITS …
#define cPI3_8 …
#define cPI2_8 …
#define cPI1_8 …

#define FLOAT_CONV …
#define MULT_NORM …
#define HALVE …

#else

#define DATA_TYPE …
#define REG_TYPE …
#define cPI3_8 …
#define cPI2_8 …
#define cPI1_8 …

#define FLOAT_CONV(x) …
#define MULT_NORM(x) …
#define HALVE(x) …

#endif


mdct_lookup;

extern void mdct_init(mdct_lookup *lookup,int n);
extern void mdct_clear(mdct_lookup *l);
extern void mdct_forward(mdct_lookup *init, DATA_TYPE *in, DATA_TYPE *out);
extern void mdct_backward(mdct_lookup *init, DATA_TYPE *in, DATA_TYPE *out);

#endif