mirror of
https://github.com/ekeeke/Genesis-Plus-GX.git
synced 2024-11-10 21:05:12 +01:00
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/********************************************************************
|
|
* *
|
|
* THIS FILE IS PART OF THE OggVorbis 'TREMOR' 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 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002 *
|
|
* BY THE Xiph.Org FOUNDATION http://www.xiph.org/ *
|
|
* *
|
|
********************************************************************
|
|
|
|
function: modified discrete cosine transform prototypes
|
|
|
|
********************************************************************/
|
|
|
|
#ifndef _OGG_mdct_H_
|
|
#define _OGG_mdct_H_
|
|
|
|
#include "ivorbiscodec.h"
|
|
#include "misc.h"
|
|
|
|
#define DATA_TYPE ogg_int32_t
|
|
#define REG_TYPE register ogg_int32_t
|
|
|
|
#ifdef _LOW_ACCURACY_
|
|
#define cPI3_8 (0x0062)
|
|
#define cPI2_8 (0x00b5)
|
|
#define cPI1_8 (0x00ed)
|
|
#else
|
|
#define cPI3_8 (0x30fbc54d)
|
|
#define cPI2_8 (0x5a82799a)
|
|
#define cPI1_8 (0x7641af3d)
|
|
#endif
|
|
|
|
extern void mdct_forward(int n, DATA_TYPE *in, DATA_TYPE *out);
|
|
extern void mdct_backward(int n, DATA_TYPE *in, DATA_TYPE *out);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|