mirror of https://github.com/AxioDL/zeus.git
303 lines
7.6 KiB
C++
303 lines
7.6 KiB
C++
#ifndef CVECTOR3F_HPP
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#define CVECTOR3F_HPP
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#include "Global.hpp"
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#include "CVector2f.hpp"
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#include "TVectorUnion.hpp"
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#include <Athena/IStreamReader.hpp>
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#include <math.h>
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#include <assert.h>
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class ZE_ALIGN(16) CVector3f
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{
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public:
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ZE_DECLARE_ALIGNED_ALLOCATOR();
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inline CVector3f() {zeroOut();}
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#if __SSE__
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CVector3f(const __m128& mVec128) : mVec128(mVec128) {v[3] = 0.0f;}
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#endif
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CVector3f(float xyz) {splat(xyz);}
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CVector3f(float x, float y, float z) {v[0] = x; v[1] = y; v[2] = z; v[3] = 0.0;}
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CVector3f(Athena::io::IStreamReader& input)
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{
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x = input.readFloat();
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y = input.readFloat();
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z = input.readFloat();
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v[3] = 0.0f;
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}
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CVector3f(const CVector2f& other)
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{
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x = other.x;
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y = other.y;
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z = 0.0;
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v[3] = 0.0f;
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}
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inline bool operator ==(const CVector3f& rhs) const
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{return (x == rhs.x && y == rhs.y && z == rhs.z);}
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inline bool operator !=(const CVector3f& rhs) const
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{return !(*this == rhs);}
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inline CVector3f operator+(const CVector3f& rhs) const
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{
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#if __SSE__
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return CVector3f(_mm_add_ps(mVec128, rhs.mVec128));
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#else
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return CVector3f(x + rhs.x, y + rhs.y, z + rhs.z);
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#endif
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}
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inline CVector3f operator-(const CVector3f& rhs) const
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{
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#if __SSE__
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return CVector3f(_mm_sub_ps(mVec128, rhs.mVec128));
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#else
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return CVector3f(x - rhs.x, y - rhs.y, z - rhs.z);
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#endif
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}
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inline CVector3f operator-() const
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{
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#if __SSE__
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return CVector3f(_mm_sub_ps(_mm_xor_ps(mVec128, mVec128), mVec128));
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#else
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return CVector3f(-x, -y, -z);
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#endif
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}
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inline CVector3f operator*(const CVector3f& rhs) const
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{
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#if __SSE__
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return CVector3f(_mm_mul_ps(mVec128, rhs.mVec128));
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#else
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return CVector3f(x * rhs.x, y * rhs.y, z * rhs.z);
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#endif
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}
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inline CVector3f operator/(const CVector3f& rhs) const
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{
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#if __SSE__
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return CVector3f(_mm_div_ps(mVec128, rhs.mVec128));
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#else
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return CVector3f(x / rhs.x, y / rhs.y, z / rhs.z);
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#endif
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}
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inline CVector3f operator+(float val) const
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{
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#if __SSE__
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TVectorUnion splat = {{val, val, val, 0.0}};
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return CVector3f(_mm_add_ps(mVec128, splat.mVec128));
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#else
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return CVector3f(x + val, y + val, z + val);
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#endif
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}
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inline CVector3f operator-(float val) const
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{
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#if __SSE__
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TVectorUnion splat = {{val, val, val, 0.0}};
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return CVector3f(_mm_sub_ps(mVec128, splat.mVec128));
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#else
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return CVector3f(x - val, y - val, z - val);
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#endif
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}
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inline CVector3f operator*(float val) const
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{
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#if __SSE__
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TVectorUnion splat = {{val, val, val, 0.0}};
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return CVector3f(_mm_mul_ps(mVec128, splat.mVec128));
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#else
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return CVector3f(x * val, y * val, z * val);
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#endif
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}
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inline CVector3f operator/(float val) const
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{
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#if __SSE__
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TVectorUnion splat = {{val, val, val, 0.0}};
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return CVector3f(_mm_div_ps(mVec128, splat.mVec128));
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#else
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return CVector3f(x / val, y / val, z / val);
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#endif
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}
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inline const CVector3f& operator +=(const CVector3f& rhs)
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{
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#if __SSE__
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mVec128 = _mm_add_ps(mVec128, rhs.mVec128);
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#else
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x += rhs.x; y += rhs.y; z += rhs.z;
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#endif
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return *this;
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}
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inline const CVector3f& operator -=(const CVector3f& rhs)
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{
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#if __SSE__
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mVec128 = _mm_sub_ps(mVec128, rhs.mVec128);
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#else
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x -= rhs.x; y -= rhs.y; z -= rhs.z;
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#endif
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return *this;
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}
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inline const CVector3f& operator *=(const CVector3f& rhs)
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{
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#if __SSE__
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mVec128 = _mm_mul_ps(mVec128, rhs.mVec128);
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#else
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x *= rhs.x; y *= rhs.y; z *= rhs.z;
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#endif
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return *this;
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}
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inline const CVector3f& operator /=(const CVector3f& rhs)
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{
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#if __SSE__
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mVec128 = _mm_div_ps(mVec128, rhs.mVec128);
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#else
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x /= rhs.x; y /= rhs.y; z /= rhs.z;
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#endif
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return *this;
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}
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inline void normalize()
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{
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float mag = length();
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assert(mag != 0.0);
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mag = 1.0 / mag;
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*this *= mag;
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}
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inline CVector3f normalized() const
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{
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float mag = length();
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assert(mag != 0.0);
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mag = 1.0 / mag;
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return *this * mag;
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}
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inline CVector3f cross(const CVector3f& rhs) const
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{
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return CVector3f(y * rhs.z - z * rhs.y, z * rhs.x - x * rhs.z, x * rhs.y - y * rhs.x);
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}
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inline float dot(const CVector3f& rhs) const
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{
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#if __SSE4_1__
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TVectorUnion result;
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result.mVec128 = _mm_dp_ps(mVec128, rhs.mVec128, 0x71);
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return result.v[0];
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#elif __SSE__
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TVectorUnion result;
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result.mVec128 = _mm_mul_ps(mVec128, rhs.mVec128);
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return result.v[0] + result.v[1] + result.v[2];
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#else
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return (x * rhs.x) + (y * rhs.y) + (z * rhs.z);
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#endif
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}
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inline float lengthSquared() const
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{
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#if __SSE4_1__
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TVectorUnion result;
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result.mVec128 = _mm_dp_ps(mVec128, mVec128, 0x71);
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return result.v[0];
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#elif __SSE__
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TVectorUnion result;
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result.mVec128 = _mm_mul_ps(mVec128, mVec128);
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return result.v[0] + result.v[1] + result.v[2];
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#else
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return x*x + y*y + z*z;
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#endif
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}
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inline float length() const
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{
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return sqrtf(lengthSquared());
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}
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inline void zeroOut()
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{
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#if __SSE__
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mVec128 = _mm_xor_ps(mVec128, mVec128);
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#else
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v[0] = 0.0; v[1] = 0.0; v[2] = 0.0; v[3] = 0.0;
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#endif
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}
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inline void splat(float xyz)
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{
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#if __SSE__
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TVectorUnion splat = {{xyz, xyz, xyz, 0.0f}};
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mVec128 = splat.mVec128;
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#else
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v[0] = xyz; v[1] = xyz; v[2] = xyz; v[3] = 0.0f;
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#endif
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}
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static float getAngleDiff(const CVector3f& a, const CVector3f& b);
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static inline CVector3f lerp(const CVector3f& a, const CVector3f& b, float t)
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{
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return (a + (b - a) * t);
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}
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static inline CVector3f nlerp(const CVector3f& a, const CVector3f& b, float t)
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{
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return lerp(a, b, t).normalized();
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}
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static CVector3f slerp(const CVector3f& a, const CVector3f& b, float t);
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inline bool isNormalized(float thresh = 0.0001f) const
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{
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return (length() > thresh);
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}
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inline float& operator[](size_t idx) {return (&x)[idx];}
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inline const float& operator[](size_t idx) const {return (&x)[idx];}
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union
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{
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struct
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{
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float x, y, z;
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};
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float v[4];
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#if __SSE__
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__m128 mVec128;
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#endif
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};
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static const CVector3f skOne;
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static const CVector3f skNegOne;
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static const CVector3f skZero;
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};
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static inline CVector3f operator+(float lhs, const CVector3f& rhs)
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{
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#if __SSE__
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TVectorUnion splat = {{lhs, lhs, lhs, 0.0}};
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return CVector3f(_mm_add_ps(splat.mVec128, rhs.mVec128));
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#else
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return CVector3f(lhs + rhs.x, lhs + rhs.y, lhs + rhs.z);
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#endif
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}
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static inline CVector3f operator-(float lhs, const CVector3f& rhs)
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{
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#if __SSE__
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TVectorUnion splat = {{lhs, lhs, lhs, 0.0}};
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return CVector3f(_mm_sub_ps(splat.mVec128, rhs.mVec128));
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#else
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return CVector3f(lhs - rhs.x, lhs - rhs.y, lhs - rhs.z);
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#endif
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}
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static inline CVector3f operator*(float lhs, const CVector3f& rhs)
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{
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#if __SSE__
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TVectorUnion splat = {{lhs, lhs, lhs, 0.0}};
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return CVector3f(_mm_mul_ps(splat.mVec128, rhs.mVec128));
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#else
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return CVector3f(lhs * rhs.x, lhs * rhs.y, lhs * rhs.z);
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#endif
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}
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static inline CVector3f operator/(float lhs, const CVector3f& rhs)
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{
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#if __SSE__
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TVectorUnion splat = {{lhs, lhs, lhs, 0.0}};
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return CVector3f(_mm_div_ps(splat.mVec128, rhs.mVec128));
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#else
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return CVector3f(lhs / rhs.x, lhs / rhs.y, lhs / rhs.z);
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#endif
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}
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#endif // CVECTOR3F_HPP
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