//======================================================================
//          IrisSinTable.h
//            Sinテーブル関連
//
//          Copyright (C) 2002-2003 NINTENDO Co.,Ltd.
//======================================================================
#ifndef _IRIS_SIN_TABLE_H
#define _IRIS_SIN_TABLE_H

#ifdef __cplusplus
extern "C" {
#endif


#include <IrisTarget.h>
#include <IrisTypes.h>
#include <IrisDefine.h>



#define SIN_NDIV_DEFAULT        256         // デフォルトSinテーブルの分割数

#define SINCOS256TBL_ON_TCM                 // TCM上に配置するのに適した256段階のSinCosテーブルを選択
#define SINCOS1024TBL_ON_TCM                // TCM上に配置するのに適した1024段階のSinCosテーブルを選択
#define SINCOS4096TBL_ON_TCM                // TCM上に配置するのに適した4096段階のSinCosテーブルを選択


// デフォルトSinテーブル（シフト調整有り）

#define SinTbl(theta)           TrigonTblPriv(Sin, SIN_NDIV_DEFAULT, theta)
#define CosTbl(theta)           TrigonTblPriv(Cos, SIN_NDIV_DEFAULT, theta)


// 回転角精度別Sinテーブル（シフト調整有り）

#ifdef  SINCOS256TBL_ON_TCM 
#define Sin256Tbl(theta)        (sin256_tbl[     ((u16 )((theta)          )) >>8])
#define Cos256Tbl(theta)        (sin256_tbl[     ((u16 )((theta)+0x10000/4)) >>8])
#else
#define Sin256Tbl(theta)        (sincos256_tbl[ (((u16 )((theta)          )) >>8) * 2    ])
#define Cos256Tbl(theta)        (sincos256_tbl[ (((u16 )((theta)          )) >>8) * 2 + 1])
#endif

#ifdef  SINCOS1024TBL_ON_TCM 
#define Sin1024Tbl(theta)       (sin1024_tbl[    ((u16 )((theta)          )) >>6])
#define Cos1024Tbl(theta)       (sin1024_tbl[    ((u16 )((theta)+0x10000/4)) >>6])
#else
#define Sin1024Tbl(theta)       (sincos1024_tbl[(((u16 )((theta)          )) >>6) * 2    ])
#define Cos1024Tbl(theta)       (sincos1024_tbl[(((u16 )((theta)          )) >>6) * 2 + 1])
#endif

#ifdef  SINCOS4096TBL_ON_TCM 
#define Sin4096Tbl(theta)       (sin4096_tbl[    ((u16 )((theta)          )) >>4])
#define Cos4096Tbl(theta)       (sin4096_tbl[    ((u16 )((theta)+0x10000/4)) >>4])
#else
#define Sin4096Tbl(theta)       (sincos4096_tbl[(((u16 )((theta)          )) >>4) * 2    ])
#define Cos4096Tbl(theta)       (sincos4096_tbl[(((u16 )((theta)          )) >>4) * 2 + 1])
#endif


// デフォルトSinテーブル（シフト調整無し）

#define SinTblImm(theta)        TrigonTblImmPriv(Sin, SIN_NDIV_DEFAULT, theta)
#define CosTblImm(theta)        TrigonTblImmPriv(Cos, SIN_NDIV_DEFAULT, theta)


// 回転角精度別Sinテーブル（シフト調整無し）

#ifdef  SINCOS256TBL_ON_TCM 
#define Sin256TblImm(theta)     (sin256_tbl[    (u8  )((theta)         )])
#define Cos256TblImm(theta)     (sin256_tbl[    (u8  )((theta)+0x100/4 )])
#else
#define Sin256TblImm(theta)     (sincos256_tbl[ (u8  )((theta)         ) * 2    ])
#define Cos256TblImm(theta)     (sincos256_tbl[ (u8  )((theta)         ) * 2 + 1])
#endif

#ifdef  SINCOS1024TBL_ON_TCM 
#define Sin1024TblImm(theta)    (sin1024_tbl[   (u16 )((theta)         )])
#define Cos1024TblImm(theta)    (sin1024_tbl[   (u16 )((theta)+0x400/4 )])
#else
#define Sin1024TblImm(theta)    (sincos1024_tbl[(u16 )(theta)          )) * 2    ])
#define Cos1024TblImm(theta)    (sincos1024_tbl[(u16 )(theta)          )) * 2 + 1])
#endif

#ifdef  SINCOS4096TBL_ON_TCM 
#define Sin4096TblImm(theta)    (sin4096_tbl[   (u16 )((theta)         )])
#define Cos4096TblImm(theta)    (sin4096_tbl[   (u16 )((theta)+0x1000/4)])
#else
#define Sin4096TblImm(theta)    (sincos4096_tbl[(u16 )((theta)         ) * 2    ])
#define Cos4096TblImm(theta)    (sincos4096_tbl[(u16 )((theta)         ) * 2 + 1])
#endif


// ArcCosテーブル

#define ArcCosTbl(cos)	    	((cos) >= V_ONE ? 0 \
                                                : arcCos256_tbl[-(cos) >= V_ONE ? 0 \
                                                                                : ((cos)>>(V_SFT - 8)) + 0])


// 中間マクロ（下記のマクロは直接使用しないで下さい）

#define TrigonTblPriv(   trigon, ndiv, theta)		TrigonNDivTbl(   trigon, ndiv, theta)
#define TrigonNDivTbl(   trigon, ndiv, theta)		trigon##ndiv##Tbl(             theta)

#define TrigonTblImmPriv(trigon, ndiv, theta)		TrigonNDivTblImm(trigon, ndiv, theta)
#define TrigonNDivTblImm(trigon, ndiv, theta)		trigon##ndiv##TblImm(          theta)

extern const s16 sin256_tbl[];
extern const s16 sin1024_tbl[];
extern const s16 sin4096_tbl[];
extern const s16 sincos256_tbl[];
extern const s16 sincos1024_tbl[];
extern const s16 sincos4096_tbl[];

extern const u16 arcCos256_tbl[];

#define ArcTanTbl(tan)	    	(arcTan256_tbl[((tan)>>(9-7)) + 128])

extern const s16 arcTan256_tbl[];



#ifdef __cplusplus
}       // extern "C"
#endif

#endif  // _IRIS_SIN_TABLE_H