TexConv/Applications/_Libs/CMP_Math/JMLVec2.h

//=====================================================================
// Copyright 2006-2018 (c), Advanced Micro Devices, Inc. All rights reserved.
//
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// in the Software without restriction, including without limitation the rights
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// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions :
//
// The above copyright notice and this permission notice shall be included in
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// THE SOFTWARE.
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//=====================================================================
#ifndef _JML_VEC2_H_
#define _JML_VEC2_H_


namespace JML {
/// \brief A template class for two-component vectors.
/**
    The template argument must be a numeric type
*/
template<class T>
class Vec2 {
  public:

    T x;
    T y;

    // *****************************************
    //     Constructors
    // *****************************************

    /// Default constructor
    Vec2() : x((T)0), y((T)0) {};

    /// Value constructor
    Vec2(const T& vx, const T& vy) : x(vx), y(vy) {};

    /// Copy constructor
    Vec2(const Vec2<T>& val) : x(val.x), y(val.y) {};

    /// Single value constructor.  Sets all components to the given value
    Vec2(const T& v) : x(v), y(v) {};


    // *****************************************
    //     Conversions/Assignment/Indexing
    // *****************************************

    /// cast to T*
    operator const T* () const {
        return (const T*)this;
    };

    /// cast to T*
    operator T* () {
        return (T*)this;
    };

    /// Indexing
    const T& operator[](int i) const {
        return ((const T*)this)[i];
    };
    T& operator[](int i) {
        return ((T*)this)[i];
    };

    /// Assignment
    const Vec2<T>& operator=(const Vec2<T>& rhs)  {
        x = rhs.x;
        y = rhs.y;
        return *this;
    };

    // *****************************************
    //    Comparison
    // *****************************************

    /// Equality comparison
    bool operator==(const Vec2<T>& rhs) const {
        return (x == rhs.x && y == rhs.y);
    };

    /// Inequality comparision
    bool operator!=(const Vec2<T>& rhs) const {
        return (x != rhs.x || y != rhs.y);
    };

    // *****************************************
    //    Arithmetic
    // *****************************************

    /// Addition
    const Vec2<T> operator+(const Vec2<T>& rhs) const {
        return Vec2<T>(x + rhs.x, y + rhs.y);
    };

    /// Subtraction
    const Vec2<T> operator-(const Vec2<T>& rhs) const {
        return Vec2<T>(x - rhs.x, y - rhs.y);
    };

    /// Multiply by scalar
    const Vec2<T> operator*(const T& v) const {
        return Vec2<T>(x * v, y * v);
    };

    /// Divide by scalar
    const Vec2<T> operator/(const T& v) const {
        return Vec2<T>(x / v, y / v);
    };

    /// Addition in-place
    Vec2<T>& operator+= (const Vec2<T>& rhs) {
        x += rhs.x;
        y += rhs.y;
        return *this;
    };

    /// Subtract in-place
    Vec2<T>& operator-= (const Vec2<T>& rhs) {
        x -= rhs.x;
        y -= rhs.y;
        return *this;
    };

    /// Scalar multiply in-place
    Vec2<T>& operator*= (const T& v) {
        x *= v;
        y *= v;
        return *this;
    };

    /// Scalar divide in-place
    Vec2<T>& operator/= (const T& v) {
        x /= v;
        y /= v;
        return *this;
    };


};

/// stream output
template <class T>
std::ostream& operator<<(std::ostream& sout, const Vec2<T>& vec) {
    sout << "<" << vec.x << "," << vec.y << ">";
    return sout;
};

typedef Vec2<float>  Vec2f;
typedef Vec2<double> Vec2d;
typedef Vec2<int>    Vec2i;




};

#endif