type_vec2.hpp

// OpenGL Mathematics Copyright (c) 2005 - 2011 G-Truc Creation (www.g-truc.net)
// Created : 2008-08-18
// Updated : 2010-02-04
// Licence : This source is under MIT License
// File    : glm/core/type_tvec2.hpp

#ifndef glm_core_type_gentype2
#define glm_core_type_gentype2

#include "type_vec.hpp"
#include "type_float.hpp"
#include "type_int.hpp"
#include "type_size.hpp"
#include "_swizzle.hpp"

namespace glm
{
        namespace test
        {
                void main_vec2();
        }
        //namespace test

        namespace detail
        {
                template <typename T> struct tref2;
                template <typename T> struct tref3;
                template <typename T> struct tref4;
                template <typename T> struct tvec3;
                template <typename T> struct tvec4;

                template <typename T>
                struct tvec2
                {
                        enum ctor{null};

                        typedef T value_type;
                        typedef std::size_t size_type;
                        static size_type value_size();

                        typedef tvec2<T> type;
                        typedef tvec2<bool> bool_type;

                        // Data

#               if(GLM_COMPONENT == GLM_COMPONENT_ONLY_XYZW)
                        value_type x, y;
#               elif(GLM_COMPONENT == GLM_COMPONENT_MS_EXT)
                        union 
                        {
                                struct{value_type x, y;};
                                struct{value_type r, g;};
                                struct{value_type s, t;};
                        };
#               else//(GLM_COMPONENT == GLM_COMPONENT_GLSL_NAMES)
                        union {value_type x, r, s;};
                        union {value_type y, g, t;};
#               endif//GLM_COMPONENT

                        // Accesses

                        value_type & operator[](size_type i);
                        value_type const & operator[](size_type i) const;

                        // Implicit basic constructors

                        tvec2();
                        tvec2(tvec2<T> const & v);

                        // Explicit basic constructors

                        explicit tvec2(
                                ctor);
                        explicit tvec2(
                                value_type const & s);
                        explicit tvec2(
                                value_type const & s1, 
                                value_type const & s2);

                        // Swizzle constructors

                        tvec2(tref2<T> const & r);

                        // Convertion scalar constructors

                        template <typename U> 
                        explicit tvec2(
                                U const & x);
                        template <typename U, typename V> 
                        explicit tvec2(
                                U const & x, 
                                V const & y);

                        // Convertion vector constructors

                        template <typename U> 
                        explicit tvec2(tvec2<U> const & v);
                        template <typename U> 
                        explicit tvec2(tvec3<U> const & v);
                        template <typename U> 
                        explicit tvec2(tvec4<U> const & v);

                        // Unary arithmetic operators

                        tvec2<T> & operator= (tvec2<T> const & v);
                        template <typename U> 
                        tvec2<T> & operator= (tvec2<U> const & v);

                        template <typename U> 
                        tvec2<T> & operator+=(U const & s);
                        template <typename U> 
                        tvec2<T> & operator+=(tvec2<U> const & v);
                        template <typename U> 
                        tvec2<T> & operator-=(U const & s);
                        template <typename U> 
                        tvec2<T> & operator-=(tvec2<U> const & v);
                        template <typename U> 
                        tvec2<T> & operator*=(U const & s);
                        template <typename U> 
                        tvec2<T> & operator*=(tvec2<U> const & v);
                        template <typename U> 
                        tvec2<T> & operator/=(U const & s);
                        template <typename U> 
                        tvec2<T> & operator/=(tvec2<U> const & v);
                        tvec2<T> & operator++();
                        tvec2<T> & operator--();

                        // Unary bit operators

                        template <typename U> 
                        tvec2<T> & operator%= (U const & s);
                        template <typename U> 
                        tvec2<T> & operator%= (tvec2<U> const & v);
                        template <typename U> 
                        tvec2<T> & operator&= (U const & s);
                        template <typename U> 
                        tvec2<T> & operator&= (tvec2<U> const & v);
                        template <typename U> 
                        tvec2<T> & operator|= (U const & s);
                        template <typename U> 
                        tvec2<T> & operator|= (tvec2<U> const & v);
                        template <typename U> 
                        tvec2<T> & operator^= (U const & s);
                        template <typename U> 
                        tvec2<T> & operator^= (tvec2<U> const & v);
                        template <typename U> 
                        tvec2<T> & operator<<=(U const & s);
                        template <typename U> 
                        tvec2<T> & operator<<=(tvec2<U> const & v);
                        template <typename U> 
                        tvec2<T> & operator>>=(U const & s);
                        template <typename U> 
                        tvec2<T> & operator>>=(tvec2<U> const & v);

                        // Swizzle operators

                        value_type swizzle(comp X) const;
                        tvec2<T> swizzle(comp X, comp Y) const;
                        tvec3<T> swizzle(comp X, comp Y, comp Z) const;
                        tvec4<T> swizzle(comp X, comp Y, comp Z, comp W) const;
                        tref2<T> swizzle(comp X, comp Y);
                };

                template <typename T>
                struct tref2
                {
                        tref2(T & x, T & y);
                        tref2(tref2<T> const & r);
                        tref2(tvec2<T> const & v);

                        tref2<T> & operator= (tref2<T> const & r);
                        tref2<T> & operator= (tvec2<T> const & v);

                        T& x;
                        T& y;
                };

                GLM_DETAIL_IS_VECTOR(tvec2);

        } //namespace detail

        namespace core{
        namespace type{

        namespace precision
        {
                typedef detail::tvec2<highp_float>              highp_vec2;
                typedef detail::tvec2<mediump_float>    mediump_vec2;
                typedef detail::tvec2<lowp_float>               lowp_vec2;

                typedef detail::tvec2<highp_int>                highp_ivec2;
                typedef detail::tvec2<mediump_int>              mediump_ivec2;
                typedef detail::tvec2<lowp_int>                 lowp_ivec2;
        
                typedef detail::tvec2<highp_uint>               highp_uvec2;
                typedef detail::tvec2<mediump_uint>             mediump_uvec2;
                typedef detail::tvec2<lowp_uint>                lowp_uvec2;
        }
        //namespace precision

        }//namespace type
        }//namespace core
}//namespace glm

#ifndef GLM_EXTERNAL_TEMPLATE
#include "type_vec2.inl"
#endif

#endif//glm_core_type_gentype2