///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
///
/// Copyright (c) 2005 - 2012 G-Truc Creation (www.g-truc.net)
/// Permission is hereby granted, free of charge, to any person obtaining a copy
/// of this software and associated documentation files (the "Software"), to deal
/// in the Software without restriction, including without limitation the rights
/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
/// 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
/// all copies or substantial portions of the Software.
///
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
/// THE SOFTWARE.
///
/// @ref core
/// @file glm/core/type_vec4.hpp
/// @date 2008-08-22 / 2011-06-15
/// @author Christophe Riccio
///////////////////////////////////////////////////////////////////////////////////

#ifndef glm_core_type_gentype4
#define glm_core_type_gentype4

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

namespace glm {
namespace detail {
template<typename T>
struct tref2;
template<typename T>
struct tref3;
template<typename T>
struct tref4;
template<typename T>
struct tvec2;
template<typename T>
struct tvec3;

// Basic 4D vector type.
// @ingroup core_template
template<typename T>
struct tvec4
{
    enum ctor
    {
        null
    };

    typedef T value_type;
    typedef std::size_t size_type;
    GLM_FUNC_DECL size_type length() const;

    typedef tvec4<T> type;
    typedef tvec4<bool> bool_type;

    //////////////////////////////////////
    // Data

#if (GLM_COMPONENT == GLM_COMPONENT_CXX11)
    union {
#if (defined(GLM_SWIZZLE))
        _GLM_SWIZZLE4_2_MEMBERS(value_type, glm::detail::tvec2<value_type>, x, y, z, w)
        _GLM_SWIZZLE4_2_MEMBERS(value_type, glm::detail::tvec2<value_type>, r, g, b, a)
        _GLM_SWIZZLE4_2_MEMBERS(value_type, glm::detail::tvec2<value_type>, s, t, p, q)
        _GLM_SWIZZLE4_3_MEMBERS(value_type, glm::detail::tvec3<value_type>, x, y, z, w)
        _GLM_SWIZZLE4_3_MEMBERS(value_type, glm::detail::tvec3<value_type>, r, g, b, a)
        _GLM_SWIZZLE4_3_MEMBERS(value_type, glm::detail::tvec3<value_type>, s, t, p, q)
        _GLM_SWIZZLE4_4_MEMBERS(value_type, glm::detail::tvec4<value_type>, x, y, z, w)
        _GLM_SWIZZLE4_4_MEMBERS(value_type, glm::detail::tvec4<value_type>, r, g, b, a)
        _GLM_SWIZZLE4_4_MEMBERS(value_type, glm::detail::tvec4<value_type>, s, t, p, q)
#endif //(defined(GLM_SWIZZLE))

        struct
        {
            value_type r, g, b, a;
        };
        struct
        {
            value_type s, t, p, q;
        };
        struct
        {
            value_type x, y, z, w;
        };
    };
#elif (GLM_COMPONENT == GLM_COMPONENT_CXX98)
    union {
        value_type x, r, s;
    };
    union {
        value_type y, g, t;
    };
    union {
        value_type z, b, p;
    };
    union {
        value_type w, a, q;
    };

#if (defined(GLM_SWIZZLE))
    // Defines all he swizzle operator as functions
    GLM_SWIZZLE_GEN_REF_FROM_VEC4(T, detail::tvec4, detail::tref2, detail::tref3, detail::tref4)
    GLM_SWIZZLE_GEN_VEC_FROM_VEC4(T, detail::tvec4, detail::tvec2, detail::tvec3, detail::tvec4)
#endif //(defined(GLM_SWIZZLE))
#else //(GLM_COMPONENT == GLM_COMPONENT_ONLY_XYZW)
    value_type x, y, z, w;

#if (defined(GLM_SWIZZLE))
    // Defines all he swizzle operator as functions
    GLM_SWIZZLE_GEN_REF_FROM_VEC4_COMP(T, detail::tvec4, detail::tref2, detail::tref3, detail::tref4, x, y, z, w)
    GLM_SWIZZLE_GEN_VEC_FROM_VEC4_COMP(T, detail::tvec4, detail::tvec2, detail::tvec3, detail::tvec4, x, y, z, w)
#endif //(defined(GLM_SWIZZLE))
#endif //GLM_COMPONENT

    //////////////////////////////////////
    // Accesses

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

    //////////////////////////////////////
    // Implicit basic constructors

    GLM_FUNC_DECL tvec4();
    GLM_FUNC_DECL tvec4(type const & v);

    //////////////////////////////////////
    // Explicit basic constructors

    GLM_FUNC_DECL explicit tvec4(
      ctor);
    GLM_FUNC_DECL explicit tvec4(
      value_type const & s);
    GLM_FUNC_DECL explicit tvec4(
      value_type const & s0,
      value_type const & s1,
      value_type const & s2,
      value_type const & s3);

    //////////////////////////////////////
    // Convertion scalar constructors

    //! Explicit converions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
    template<typename U>
    GLM_FUNC_DECL explicit tvec4(
      U const & x);
    //! Explicit converions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
    template<typename A, typename B, typename C, typename D>
    GLM_FUNC_DECL explicit tvec4(
      A const & x,
      B const & y,
      C const & z,
      D const & w);

    //////////////////////////////////////
    // Convertion vector constructors

    //! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
    template<typename A, typename B, typename C>
    GLM_FUNC_DECL explicit tvec4(tvec2<A> const & v, B const & s1, C const & s2);
    //! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
    template<typename A, typename B, typename C>
    GLM_FUNC_DECL explicit tvec4(A const & s1, tvec2<B> const & v, C const & s2);
    //! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
    template<typename A, typename B, typename C>
    GLM_FUNC_DECL explicit tvec4(A const & s1, B const & s2, tvec2<C> const & v);
    //! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
    template<typename A, typename B>
    GLM_FUNC_DECL explicit tvec4(tvec3<A> const & v, B const & s);
    //! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
    template<typename A, typename B>
    GLM_FUNC_DECL explicit tvec4(A const & s, tvec3<B> const & v);
    //! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
    template<typename A, typename B>
    GLM_FUNC_DECL explicit tvec4(tvec2<A> const & v1, tvec2<B> const & v2);
    //! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
    template<typename U>
    GLM_FUNC_DECL explicit tvec4(tvec4<U> const & v);

    template<int E0, int E1, int E2, int E3>
    GLM_FUNC_DECL tvec4(glm::detail::swizzle<4, T, tvec4<T>, E0, E1, E2, E3> const & that)
    {
        *this = that();
    }

    template<int E0, int E1, int F0, int F1>
    GLM_FUNC_DECL tvec4(glm::detail::swizzle<2, T, tvec2<T>, E0, E1, -1, -2> const & v, glm::detail::swizzle<2, T, tvec2<T>, F0, F1, -1, -2> const & u)
    {
        *this = tvec4<T>(v(), u());
    }

    template<int E0, int E1>
    GLM_FUNC_DECL tvec4(T const & x, T const & y, glm::detail::swizzle<2, T, tvec2<T>, E0, E1, -1, -2> const & v)
    {
        *this = tvec4<T>(x, y, v());
    }

    template<int E0, int E1>
    GLM_FUNC_DECL tvec4(T const & x, glm::detail::swizzle<2, T, tvec2<T>, E0, E1, -1, -2> const & v, T const & w)
    {
        *this = tvec4<T>(x, v(), w);
    }

    template<int E0, int E1>
    GLM_FUNC_DECL tvec4(glm::detail::swizzle<2, T, tvec2<T>, E0, E1, -1, -2> const & v, T const & z, T const & w)
    {
        *this = tvec4<T>(v(), z, w);
    }

    template<int E0, int E1, int E2>
    GLM_FUNC_DECL tvec4(glm::detail::swizzle<3, T, tvec3<T>, E0, E1, E2, -1> const & v, T const & w)
    {
        *this = tvec4<T>(v(), w);
    }

    template<int E0, int E1, int E2>
    GLM_FUNC_DECL tvec4(T const & x, glm::detail::swizzle<3, T, tvec3<T>, E0, E1, E2, -1> const & v)
    {
        *this = tvec4<T>(x, v());
    }

    //////////////////////////////////////
    // Swizzle constructors

    GLM_FUNC_DECL tvec4(tref4<T> const & r);

    //! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
    template<typename A, typename B, typename C>
    GLM_FUNC_DECL explicit tvec4(tref2<A> const & v, B const & s1, C const & s2);
    //! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
    template<typename A, typename B, typename C>
    GLM_FUNC_DECL explicit tvec4(A const & s1, tref2<B> const & v, C const & s2);
    //! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
    template<typename A, typename B, typename C>
    GLM_FUNC_DECL explicit tvec4(A const & s1, B const & s2, tref2<C> const & v);
    //! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
    template<typename A, typename B>
    GLM_FUNC_DECL explicit tvec4(tref3<A> const & v, B const & s);
    //! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
    template<typename A, typename B>
    GLM_FUNC_DECL explicit tvec4(A const & s, tref3<B> const & v);
    //! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
    template<typename A, typename B>
    GLM_FUNC_DECL explicit tvec4(tref2<A> const & v1, tref2<B> const & v2);
    //! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
    template<typename A, typename B>
    GLM_FUNC_DECL explicit tvec4(tvec2<A> const & v1, tref2<B> const & v2);
    //! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
    template<typename A, typename B>
    GLM_FUNC_DECL explicit tvec4(tref2<A> const & v1, tvec2<B> const & v2);

    //////////////////////////////////////
    // Unary arithmetic operators

    GLM_FUNC_DECL tvec4<T> & operator=(tvec4<T> const & v);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator=(tvec4<U> const & v);

    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator+=(U const & s);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator+=(tvec4<U> const & v);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator-=(U const & s);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator-=(tvec4<U> const & v);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator*=(U const & s);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator*=(tvec4<U> const & v);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator/=(U const & s);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator/=(tvec4<U> const & v);
    GLM_FUNC_DECL tvec4<T> & operator++();
    GLM_FUNC_DECL tvec4<T> & operator--();

    //////////////////////////////////////
    // Unary bit operators

    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator%=(U const & s);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator%=(tvec4<U> const & v);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator&=(U const & s);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator&=(tvec4<U> const & v);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator|=(U const & s);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator|=(tvec4<U> const & v);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator^=(U const & s);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator^=(tvec4<U> const & v);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator<<=(U const & s);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator<<=(tvec4<U> const & v);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator>>=(U const & s);
    template<typename U>
    GLM_FUNC_DECL tvec4<T> & operator>>=(tvec4<U> const & v);

    //////////////////////////////////////
    // Swizzle operators

    GLM_FUNC_DECL value_type swizzle(comp X) const;
    GLM_FUNC_DECL tvec2<T> swizzle(comp X, comp Y) const;
    GLM_FUNC_DECL tvec3<T> swizzle(comp X, comp Y, comp Z) const;
    GLM_FUNC_DECL tvec4<T> swizzle(comp X, comp Y, comp Z, comp W) const;
    GLM_FUNC_DECL tref2<T> swizzle(comp X, comp Y);
    GLM_FUNC_DECL tref3<T> swizzle(comp X, comp Y, comp Z);
    GLM_FUNC_DECL tref4<T> swizzle(comp X, comp Y, comp Z, comp W);
};

template<typename T>
struct tref4
{
    GLM_FUNC_DECL tref4(T & x, T & y, T & z, T & w);
    GLM_FUNC_DECL tref4(tref4<T> const & r);
    GLM_FUNC_DECL explicit tref4(tvec4<T> const & v);

    GLM_FUNC_DECL tref4<T> & operator=(tref4<T> const & r);
    GLM_FUNC_DECL tref4<T> & operator=(tvec4<T> const & v);

    GLM_FUNC_DECL tvec4<T> operator()();

    T & x;
    T & y;
    T & z;
    T & w;
};

GLM_DETAIL_IS_VECTOR(tvec4);
} //namespace detail

/// @addtogroup core_precision
/// @{

/// 4 components vector of high precision floating-point numbers.
/// There is no guarantee on the actual precision.
///
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.5 Vectors</a>
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
typedef detail::tvec4<highp_float> highp_vec4;

/// 4 components vector of medium precision floating-point numbers.
/// There is no guarantee on the actual precision.
///
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.5 Vectors</a>
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
typedef detail::tvec4<mediump_float> mediump_vec4;

/// 4 components vector of low precision floating-point numbers.
/// There is no guarantee on the actual precision.
///
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.5 Vectors</a>
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
typedef detail::tvec4<lowp_float> lowp_vec4;

/// 4 components vector of high precision signed integer numbers.
/// There is no guarantee on the actual precision.
///
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.5 Vectors</a>
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
typedef detail::tvec4<highp_int> highp_ivec4;

/// 4 components vector of medium precision signed integer numbers.
/// There is no guarantee on the actual precision.
///
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.5 Vectors</a>
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
typedef detail::tvec4<mediump_int> mediump_ivec4;

/// 4 components vector of low precision signed integer numbers.
/// There is no guarantee on the actual precision.
///
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.5 Vectors</a>
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
typedef detail::tvec4<lowp_int> lowp_ivec4;

/// 4 components vector of high precision unsigned integer numbers.
/// There is no guarantee on the actual precision.
///
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.5 Vectors</a>
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
typedef detail::tvec4<highp_uint> highp_uvec4;

/// 4 components vector of medium precision unsigned integer numbers.
/// There is no guarantee on the actual precision.
///
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.5 Vectors</a>
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
typedef detail::tvec4<mediump_uint> mediump_uvec4;

/// 4 components vector of low precision unsigned integer numbers.
/// There is no guarantee on the actual precision.
///
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.5 Vectors</a>
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
typedef detail::tvec4<lowp_uint> lowp_uvec4;

/// @}
} //namespace glm

#ifndef GLM_EXTERNAL_TEMPLATE
#include "type_vec4.inl"
#endif //GLM_EXTERNAL_TEMPLATE

#endif //glm_core_type_gentype4
