diff options
Diffstat (limited to 'src/post/goom/mathtools.h')
| -rwxr-xr-x | src/post/goom/mathtools.h | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/src/post/goom/mathtools.h b/src/post/goom/mathtools.h index 7ed0f80ef..0e2293c3f 100755 --- a/src/post/goom/mathtools.h +++ b/src/post/goom/mathtools.h @@ -1,7 +1,11 @@ +#ifndef MATHTOOLS_H +#define MATHTOOLS_H + + #define _double2fixmagic (68719476736.0*1.5) -//2^36 * 1.5, (52-_shiftamt=36) uses limited precisicion to floor +/* 2^36 * 1.5, (52-_shiftamt=36) uses limited precisicion to floor */ #define _shiftamt 16 -//16.16 fixed point representation, +/* 16.16 fixed point representation */ #if BigEndian_ #define iexp_ 0 @@ -9,14 +13,14 @@ #else #define iexp_ 1 #define iman_ 0 -#endif //BigEndian_ +#endif /* BigEndian_ */ +/* TODO: this optimization is very efficient: put it again when all works #ifdef HAVE_MMX -#define F2I(dbl,i) \ -{double d = dbl + _double2fixmagic; i = ((int*)&d)[iman_] >> _shiftamt; } -#else +#define F2I(dbl,i) {double d = dbl + _double2fixmagic; i = ((int*)&d)[iman_] >> _shiftamt;} +#else*/ #define F2I(dbl,i) i=(int)dbl; -#endif +/*#endif*/ #if 0 #define SINCOS(f,s,c) \ @@ -24,3 +28,9 @@ #else #define SINCOS(f,s,c) {s=sin(f);c=cos(f);} #endif + +extern float sin256[256]; +extern float cos256[256]; + +#endif + |