#ifndef _CMATH #define _CMATH #include "types.h" #include "math.h" #define M_PIF 3.14159265358979323846f #define M_2PIF 6.28318530718f class CMath { public: static float FastCosR(float v); static float FastSinR(float v); static inline float FastFmod(float x, float y) { int v = static_cast< int >(x * (1.f / y)); return x - v * y; } template < typename T > static const T& Clamp(const T& min, const T& val, const T& max); // TODO: weak static float SqrtF(float v); static inline float Limit(float v, float h) { return fabs(v) > h ? h * Sign(v) : v; } static inline float Sign(float v) { return FastFSel(v, 1.f, -1.f); } #ifdef __MWERKS__ static inline float FastFSel(register float v, register float h, register float l) { register float out; asm { fsel out, v, h, l } return out; } #else static inline float FastFSel(float v, float h, float l) { return v >= 0.f ? h : l; } #endif static inline float AbsF(float v) { return fabs(v); } static inline double AbsD(double v) { return fabs(v); } static inline int AbsI(int v) { return abs(v); } // WrapPi__5CMathFf weak // WrapTwoPi__5CMathFf weak template < typename T > static const T& Min(const T& a, const T& b); template < typename T > static const T& Max(const T& a, const T& b); // InvSqrtF__5CMathFf global // FastArcCosR__5CMathFf global // SlowCosineR__5CMathFf global // SlowSineR__5CMathFf global // FastCosR__5CMathFf global // GetBezierPoint__5CMathFRC9CVector3fRC9CVector3fRC9CVector3fRC9CVector3ff global static float ClampRadians(float rad) { float value = FastFmod(rad, M_2PIF); if (value < 0.f) { value += M_2PIF; } return value; } // ModF__5CMathFff weak static float Deg2Rad(float deg) { return Deg2Rev(deg) * M_2PIF; } static float Deg2Rev(float deg) { return deg * (1.f / 360.f); } static float ArcCosineR(float v); // FloorF__5CMathFf global // BaryToWorld__5CMathFRC9CVector3fRC9CVector3fRC9CVector3fRC9CVector3f global // GetCatmullRomSplinePoint__5CMathFRC9CVector3fRC9CVector3fRC9CVector3fRC9CVector3ff global // FastSqrtF__5CMathFf weak static double SqrtD(double x); // IsEpsilon__5CMathFfff global // FastMin__5CMathFff weak // FastMax__5CMathFff weak // PowF__5CMathFff global // Rev2Deg__5CMathFf weak // GetCatmullRomSplinePoint__5CMathFfffff global // SlowTangentR__5CMathFf global static float Rad2Deg(float rad) { return rad * (180.f / M_PIF); } static float Rad2Rev(float rad) { return rad * (1.f / M_2PIF); } // CeilingF__5CMathFf global // ArcTangentR__5CMathFf global // Swap__5CMathFRfRf weak }; #endif // _CMATH