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-rw-r--r--contrib/Opcode/Ice/IceHPoint.h157
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diff --git a/contrib/Opcode/Ice/IceHPoint.h b/contrib/Opcode/Ice/IceHPoint.h
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-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-/**
- * Contains code for homogeneous points.
- * \file IceHPoint.h
- * \author Pierre Terdiman
- * \date April, 4, 2000
- */
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// Include Guard
-#ifndef __ICEHPOINT_H__
-#define __ICEHPOINT_H__
-
- class ICEMATHS_API HPoint : public IcePoint
- {
- public:
-
- //! Empty constructor
- inline_ HPoint() {}
- //! Constructor from floats
- inline_ HPoint(float _x, float _y, float _z, float _w=0.0f) : IcePoint(_x, _y, _z), w(_w) {}
- //! Constructor from array
- inline_ HPoint(const float f[4]) : IcePoint(f), w(f[3]) {}
- //! Constructor from a Point
- inline_ HPoint(const IcePoint& p, float _w=0.0f) : IcePoint(p), w(_w) {}
- //! Destructor
- inline_ ~HPoint() {}
-
- //! Clear the point
- inline_ HPoint& Zero() { x = y = z = w = 0.0f; return *this; }
-
- //! Assignment from values
- inline_ HPoint& Set(float _x, float _y, float _z, float _w ) { x = _x; y = _y; z = _z; w = _w; return *this; }
- //! Assignment from array
- inline_ HPoint& Set(const float f[4]) { x = f[_X]; y = f[_Y]; z = f[_Z]; w = f[_W]; return *this; }
- //! Assignment from another h-point
- inline_ HPoint& Set(const HPoint& src) { x = src.x; y = src.y; z = src.z; w = src.w; return *this; }
-
- //! Add a vector
- inline_ HPoint& Add(float _x, float _y, float _z, float _w ) { x += _x; y += _y; z += _z; w += _w; return *this; }
- //! Add a vector
- inline_ HPoint& Add(const float f[4]) { x += f[_X]; y += f[_Y]; z += f[_Z]; w += f[_W]; return *this; }
-
- //! Subtract a vector
- inline_ HPoint& Sub(float _x, float _y, float _z, float _w ) { x -= _x; y -= _y; z -= _z; w -= _w; return *this; }
- //! Subtract a vector
- inline_ HPoint& Sub(const float f[4]) { x -= f[_X]; y -= f[_Y]; z -= f[_Z]; w -= f[_W]; return *this; }
-
- //! Multiplies by a scalar
- inline_ HPoint& Mul(float s) { x *= s; y *= s; z *= s; w *= s; return *this; }
-
- //! Returns MIN(x, y, z, w);
- float Min() const { return MIN(x, MIN(y, MIN(z, w))); }
- //! Returns MAX(x, y, z, w);
- float Max() const { return MAX(x, MAX(y, MAX(z, w))); }
- //! Sets each element to be componentwise minimum
- HPoint& Min(const HPoint& p) { x = MIN(x, p.x); y = MIN(y, p.y); z = MIN(z, p.z); w = MIN(w, p.w); return *this; }
- //! Sets each element to be componentwise maximum
- HPoint& Max(const HPoint& p) { x = MAX(x, p.x); y = MAX(y, p.y); z = MAX(z, p.z); w = MAX(w, p.w); return *this; }
-
- //! Computes square magnitude
- inline_ float SquareMagnitude() const { return x*x + y*y + z*z + w*w; }
- //! Computes magnitude
- inline_ float Magnitude() const { return sqrtf(x*x + y*y + z*z + w*w); }
-
- //! Normalize the vector
- inline_ HPoint& Normalize()
- {
- float M = Magnitude();
- if(M)
- {
- M = 1.0f / M;
- x *= M;
- y *= M;
- z *= M;
- w *= M;
- }
- return *this;
- }
-
- // Arithmetic operators
- //! Operator for HPoint Negate = - HPoint;
- inline_ HPoint operator-() const { return HPoint(-x, -y, -z, -w); }
-
- //! Operator for HPoint Plus = HPoint + HPoint;
- inline_ HPoint operator+(const HPoint& p) const { return HPoint(x + p.x, y + p.y, z + p.z, w + p.w); }
- //! Operator for HPoint Minus = HPoint - HPoint;
- inline_ HPoint operator-(const HPoint& p) const { return HPoint(x - p.x, y - p.y, z - p.z, w - p.w); }
-
- //! Operator for HPoint Mul = HPoint * HPoint;
- inline_ HPoint operator*(const HPoint& p) const { return HPoint(x * p.x, y * p.y, z * p.z, w * p.w); }
- //! Operator for HPoint Scale = HPoint * float;
- inline_ HPoint operator*(float s) const { return HPoint(x * s, y * s, z * s, w * s); }
- //! Operator for HPoint Scale = float * HPoint;
- inline_ friend HPoint operator*(float s, const HPoint& p) { return HPoint(s * p.x, s * p.y, s * p.z, s * p.w); }
-
- //! Operator for HPoint Div = HPoint / HPoint;
- inline_ HPoint operator/(const HPoint& p) const { return HPoint(x / p.x, y / p.y, z / p.z, w / p.w); }
- //! Operator for HPoint Scale = HPoint / float;
- inline_ HPoint operator/(float s) const { s = 1.0f / s; return HPoint(x * s, y * s, z * s, w * s); }
- //! Operator for HPoint Scale = float / HPoint;
- inline_ friend HPoint operator/(float s, const HPoint& p) { return HPoint(s / p.x, s / p.y, s / p.z, s / p.w); }
-
- //! Operator for float DotProd = HPoint | HPoint;
- inline_ float operator|(const HPoint& p) const { return x*p.x + y*p.y + z*p.z + w*p.w; }
- // No cross-product in 4D
-
- //! Operator for HPoint += HPoint;
- inline_ HPoint& operator+=(const HPoint& p) { x += p.x; y += p.y; z += p.z; w += p.w; return *this; }
- //! Operator for HPoint += float;
- inline_ HPoint& operator+=(float s) { x += s; y += s; z += s; w += s; return *this; }
-
- //! Operator for HPoint -= HPoint;
- inline_ HPoint& operator-=(const HPoint& p) { x -= p.x; y -= p.y; z -= p.z; w -= p.w; return *this; }
- //! Operator for HPoint -= float;
- inline_ HPoint& operator-=(float s) { x -= s; y -= s; z -= s; w -= s; return *this; }
-
- //! Operator for HPoint *= HPoint;
- inline_ HPoint& operator*=(const HPoint& p) { x *= p.x; y *= p.y; z *= p.z; w *= p.w; return *this; }
- //! Operator for HPoint *= float;
- inline_ HPoint& operator*=(float s) { x*=s; y*=s; z*=s; w*=s; return *this; }
-
- //! Operator for HPoint /= HPoint;
- inline_ HPoint& operator/=(const HPoint& p) { x /= p.x; y /= p.y; z /= p.z; w /= p.w; return *this; }
- //! Operator for HPoint /= float;
- inline_ HPoint& operator/=(float s) { s = 1.0f / s; x*=s; y*=s; z*=s; w*=s; return *this; }
-
- // Arithmetic operators
-
- //! Operator for Point Mul = HPoint * Matrix3x3;
- IcePoint operator*(const Matrix3x3& mat) const;
- //! Operator for HPoint Mul = HPoint * Matrix4x4;
- HPoint operator*(const Matrix4x4& mat) const;
-
- // HPoint *= Matrix3x3 doesn't exist, the matrix is first casted to a 4x4
- //! Operator for HPoint *= Matrix4x4
- HPoint& operator*=(const Matrix4x4& mat);
-
- // Logical operators
-
- //! Operator for "if(HPoint==HPoint)"
- inline_ bool operator==(const HPoint& p) const { return ( (x==p.x)&&(y==p.y)&&(z==p.z)&&(w==p.w)); }
- //! Operator for "if(HPoint!=HPoint)"
- inline_ bool operator!=(const HPoint& p) const { return ( (x!=p.x)||(y!=p.y)||(z!=p.z)||(w!=p.w)); }
-
- // Cast operators
-
- //! Cast a HPoint to a Point. w is discarded.
- inline_ operator HPoint() const { return IcePoint(x, y, z); }
-
- public:
- float w;
- };
-
-#endif // __ICEHPOINT_H__
-
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