AeThex-Engine-Core/engine/thirdparty/libvorbis/mdct.h
MrPiglr 9dddce666d
🚀 AeThex Engine v1.0 - Complete Fork
- Forked from Godot Engine 4.7-dev (MIT License)
- Rebranded to AeThex Engine with cyan/purple theme
- Added AI-powered development assistant module
- Integrated Claude API for code completion & error fixing
- Custom hexagon logo and branding
- Multi-platform CI/CD (Windows, Linux, macOS)
- Built Linux editor binary (151MB)
- Complete source code with all customizations

Tech Stack:
- C++ game engine core
- AI Module: Claude 3.5 Sonnet integration
- Build: SCons, 14K+ source files
- License: MIT (Godot) + Custom (AeThex features)

Ready for Windows build via GitHub Actions!
2026-02-23 05:01:56 +00:00

70 lines
1.9 KiB
C++

/********************************************************************
* *
* 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 int
#define REG_TYPE register int
#define TRIGBITS 14
#define cPI3_8 6270
#define cPI2_8 11585
#define cPI1_8 15137
#define FLOAT_CONV(x) ((int)((x)*(1<<TRIGBITS)+.5))
#define MULT_NORM(x) ((x)>>TRIGBITS)
#define HALVE(x) ((x)>>1)
#else
#define DATA_TYPE float
#define REG_TYPE float
#define cPI3_8 .38268343236508977175F
#define cPI2_8 .70710678118654752441F
#define cPI1_8 .92387953251128675613F
#define FLOAT_CONV(x) (x)
#define MULT_NORM(x) (x)
#define HALVE(x) ((x)*.5f)
#endif
typedef struct {
int n;
int log2n;
DATA_TYPE *trig;
int *bitrev;
DATA_TYPE scale;
} 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