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129 lines
4.7 KiB
C
129 lines
4.7 KiB
C
//======================================================================
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// IrisSinTable.h
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// Sinテーブル関連
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//
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// Copyright (C) 2002-2003 NINTENDO Co.,Ltd.
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//======================================================================
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#ifndef _IRIS_SIN_TABLE_H
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#define _IRIS_SIN_TABLE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <IrisTarget.h>
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#include <IrisTypes.h>
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#include <IrisDefine.h>
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#define SIN_NDIV_DEFAULT 256 // デフォルトSinテーブルの分割数
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#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
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#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
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#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
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// デフォルトSinテーブル（シフト調整有り）
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#define SinTbl(theta) TrigonTblPriv(Sin, SIN_NDIV_DEFAULT, theta)
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#define CosTbl(theta) TrigonTblPriv(Cos, SIN_NDIV_DEFAULT, theta)
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// 回転角精度別Sinテーブル（シフト調整有り）
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#ifdef SINCOS256TBL_ON_TCM
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#define Sin256Tbl(theta) (sin256_tbl[ ((u16 )((theta) )) >>8])
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#define Cos256Tbl(theta) (sin256_tbl[ ((u16 )((theta)+0x10000/4)) >>8])
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#else
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#define Sin256Tbl(theta) (sincos256_tbl[ (((u16 )((theta) )) >>8) * 2 ])
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#define Cos256Tbl(theta) (sincos256_tbl[ (((u16 )((theta) )) >>8) * 2 + 1])
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#endif
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#ifdef SINCOS1024TBL_ON_TCM
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#define Sin1024Tbl(theta) (sin1024_tbl[ ((u16 )((theta) )) >>6])
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#define Cos1024Tbl(theta) (sin1024_tbl[ ((u16 )((theta)+0x10000/4)) >>6])
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#else
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#define Sin1024Tbl(theta) (sincos1024_tbl[(((u16 )((theta) )) >>6) * 2 ])
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#define Cos1024Tbl(theta) (sincos1024_tbl[(((u16 )((theta) )) >>6) * 2 + 1])
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#endif
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#ifdef SINCOS4096TBL_ON_TCM
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#define Sin4096Tbl(theta) (sin4096_tbl[ ((u16 )((theta) )) >>4])
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#define Cos4096Tbl(theta) (sin4096_tbl[ ((u16 )((theta)+0x10000/4)) >>4])
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#else
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#define Sin4096Tbl(theta) (sincos4096_tbl[(((u16 )((theta) )) >>4) * 2 ])
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#define Cos4096Tbl(theta) (sincos4096_tbl[(((u16 )((theta) )) >>4) * 2 + 1])
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#endif
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// デフォルトSinテーブル（シフト調整無し）
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#define SinTblImm(theta) TrigonTblImmPriv(Sin, SIN_NDIV_DEFAULT, theta)
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#define CosTblImm(theta) TrigonTblImmPriv(Cos, SIN_NDIV_DEFAULT, theta)
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// 回転角精度別Sinテーブル（シフト調整無し）
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#ifdef SINCOS256TBL_ON_TCM
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#define Sin256TblImm(theta) (sin256_tbl[ (u8 )((theta) )])
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#define Cos256TblImm(theta) (sin256_tbl[ (u8 )((theta)+0x100/4 )])
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#else
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#define Sin256TblImm(theta) (sincos256_tbl[ (u8 )((theta) ) * 2 ])
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#define Cos256TblImm(theta) (sincos256_tbl[ (u8 )((theta) ) * 2 + 1])
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#endif
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#ifdef SINCOS1024TBL_ON_TCM
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#define Sin1024TblImm(theta) (sin1024_tbl[ (u16 )((theta) )])
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#define Cos1024TblImm(theta) (sin1024_tbl[ (u16 )((theta)+0x400/4 )])
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#else
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#define Sin1024TblImm(theta) (sincos1024_tbl[(u16 )(theta) )) * 2 ])
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#define Cos1024TblImm(theta) (sincos1024_tbl[(u16 )(theta) )) * 2 + 1])
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#endif
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#ifdef SINCOS4096TBL_ON_TCM
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#define Sin4096TblImm(theta) (sin4096_tbl[ (u16 )((theta) )])
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#define Cos4096TblImm(theta) (sin4096_tbl[ (u16 )((theta)+0x1000/4)])
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#else
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#define Sin4096TblImm(theta) (sincos4096_tbl[(u16 )((theta) ) * 2 ])
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#define Cos4096TblImm(theta) (sincos4096_tbl[(u16 )((theta) ) * 2 + 1])
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#endif
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// ArcCosテーブル
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#define ArcCosTbl(cos) ((cos) >= V_ONE ? 0 \
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: arcCos256_tbl[-(cos) >= V_ONE ? 0 \
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: ((cos)>>(V_SFT - 8)) + 0])
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// 中間マクロ（下記のマクロは直接使用しないで下さい）
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#define TrigonTblPriv( trigon, ndiv, theta) TrigonNDivTbl( trigon, ndiv, theta)
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#define TrigonNDivTbl( trigon, ndiv, theta) trigon##ndiv##Tbl( theta)
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#define TrigonTblImmPriv(trigon, ndiv, theta) TrigonNDivTblImm(trigon, ndiv, theta)
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#define TrigonNDivTblImm(trigon, ndiv, theta) trigon##ndiv##TblImm( theta)
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extern const s16 sin256_tbl[];
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extern const s16 sin1024_tbl[];
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extern const s16 sin4096_tbl[];
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extern const s16 sincos256_tbl[];
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extern const s16 sincos1024_tbl[];
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extern const s16 sincos4096_tbl[];
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extern const u16 arcCos256_tbl[];
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#define ArcTanTbl(tan) (arcTan256_tbl[((tan)>>(9-7)) + 128])
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extern const s16 arcTan256_tbl[];
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // _IRIS_SIN_TABLE_H
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