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raytracing/Glm/gtc/half_float.inl

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///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
///
/// Copyright (c) 2005 - 2013 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 gtc_half_float
/// @file glm/gtc/half_float.inl
/// @date 2009-04-29 / 2012-11-06
/// @author Christophe Riccio
///////////////////////////////////////////////////////////////////////////////////
namespace glm{
namespace detail
{
#if(GLM_COMPONENT == GLM_COMPONENT_CXX98)
//////////////////////////////////////
// hvec2
GLM_FUNC_QUALIFIER tvec2<half>::size_type tvec2<half>::length() const
{
return 2;
}
GLM_FUNC_QUALIFIER tvec2<half>::size_type tvec2<half>::value_size()
{
return 2;
}
//////////////////////////////////////
// Accesses
GLM_FUNC_QUALIFIER half & tvec2<half>::operator[](tvec2<half>::size_type i)
{
assert(/*i >= tvec2<half>::size_type(0) && */i < tvec2<half>::value_size());
return (&x)[i];
}
GLM_FUNC_QUALIFIER half const & tvec2<half>::operator[](tvec2<half>::size_type i) const
{
assert(/*i >= tvec2<half>::size_type(0) && */i < tvec2<half>::value_size());
return (&x)[i];
}
//////////////////////////////////////
// Implicit basic constructors
GLM_FUNC_QUALIFIER tvec2<half>::tvec2() :
x(half(0.f)),
y(half(0.f))
{}
GLM_FUNC_QUALIFIER tvec2<half>::tvec2
(
tvec2<half> const & v
) :
x(v.x),
y(v.y)
{}
//////////////////////////////////////
// Explicit basic constructors
GLM_FUNC_QUALIFIER tvec2<half>::tvec2
(
half const & s
) :
x(s),
y(s)
{}
GLM_FUNC_QUALIFIER tvec2<half>::tvec2
(
half const & s1,
half const & s2
) :
x(s1),
y(s2)
{}
//////////////////////////////////////
// Swizzle constructors
GLM_FUNC_QUALIFIER tvec2<half>::tvec2
(
tref2<half> const & r
) :
x(r.x),
y(r.y)
{}
//////////////////////////////////////
// Convertion scalar constructors
template <typename U>
GLM_FUNC_QUALIFIER tvec2<half>::tvec2
(
U const & x
) :
x(half(x)),
y(half(x))
{}
template <typename U, typename V>
GLM_FUNC_QUALIFIER tvec2<half>::tvec2
(
U const & x,
V const & y
) :
x(half(x)),
y(half(y))
{}
//////////////////////////////////////
// Convertion vector constructors
template <typename U>
GLM_FUNC_QUALIFIER tvec2<half>::tvec2
(
tvec2<U> const & v
) :
x(half(v.x)),
y(half(v.y))
{}
template <typename U>
GLM_FUNC_QUALIFIER tvec2<half>::tvec2
(
tvec3<U> const & v
) :
x(half(v.x)),
y(half(v.y))
{}
template <typename U>
GLM_FUNC_QUALIFIER tvec2<half>::tvec2
(
tvec4<U> const & v
) :
x(half(v.x)),
y(half(v.y))
{}
//////////////////////////////////////
// Unary arithmetic operators
GLM_FUNC_QUALIFIER tvec2<half> & tvec2<half>::operator=
(
tvec2<half> const & v
)
{
this->x = v.x;
this->y = v.y;
return *this;
}
GLM_FUNC_QUALIFIER tvec2<half> & tvec2<half>::operator+=
(
half const & s
)
{
this->x += s;
this->y += s;
return *this;
}
GLM_FUNC_QUALIFIER tvec2<half> & tvec2<half>::operator+=
(
tvec2<half> const & v
)
{
this->x += v.x;
this->y += v.y;
return *this;
}
GLM_FUNC_QUALIFIER tvec2<half> & tvec2<half>::operator-=
(
half const & s
)
{
this->x -= s;
this->y -= s;
return *this;
}
GLM_FUNC_QUALIFIER tvec2<half> & tvec2<half>::operator-=
(
tvec2<half> const & v
)
{
this->x -= v.x;
this->y -= v.y;
return *this;
}
GLM_FUNC_QUALIFIER tvec2<half>& tvec2<half>::operator*=
(
half const & s
)
{
this->x *= s;
this->y *= s;
return *this;
}
GLM_FUNC_QUALIFIER tvec2<half> & tvec2<half>::operator*=
(
tvec2<half> const & v
)
{
this->x *= v.x;
this->y *= v.y;
return *this;
}
GLM_FUNC_QUALIFIER tvec2<half> & tvec2<half>::operator/=
(
half const & s
)
{
this->x /= s;
this->y /= s;
return *this;
}
GLM_FUNC_QUALIFIER tvec2<half> & tvec2<half>::operator/=
(
tvec2<half> const & v
)
{
this->x /= v.x;
this->y /= v.y;
return *this;
}
GLM_FUNC_QUALIFIER tvec2<half> & tvec2<half>::operator++()
{
++this->x;
++this->y;
return *this;
}
GLM_FUNC_QUALIFIER tvec2<half>& tvec2<half>::operator--()
{
--this->x;
--this->y;
return *this;
}
//////////////////////////////////////
// Swizzle operators
GLM_FUNC_QUALIFIER half tvec2<half>::swizzle(comp x) const
{
return (*this)[x];
}
GLM_FUNC_QUALIFIER tvec2<half> tvec2<half>::swizzle(comp x, comp y) const
{
return tvec2<half>(
(*this)[x],
(*this)[y]);
}
GLM_FUNC_QUALIFIER tvec3<half> tvec2<half>::swizzle(comp x, comp y, comp z) const
{
return tvec3<half>(
(*this)[x],
(*this)[y],
(*this)[z]);
}
GLM_FUNC_QUALIFIER tvec4<half> tvec2<half>::swizzle(comp x, comp y, comp z, comp w) const
{
return tvec4<half>(
(*this)[x],
(*this)[y],
(*this)[z],
(*this)[w]);
}
GLM_FUNC_QUALIFIER tref2<half> tvec2<half>::swizzle(comp x, comp y)
{
return tref2<half>(
(*this)[x],
(*this)[y]);
}
//////////////////////////////////////
// hvec3
GLM_FUNC_QUALIFIER tvec3<half>::size_type tvec3<half>::length() const
{
return 3;
}
GLM_FUNC_QUALIFIER tvec3<half>::size_type tvec3<half>::value_size()
{
return 3;
}
//////////////////////////////////////
// Accesses
GLM_FUNC_QUALIFIER half & tvec3<half>::operator[]
(
tvec3<half>::size_type i
)
{
assert(/*i >= tvec3<half>::size_type(0) &&*/ i < tvec3<half>::value_size());
return (&x)[i];
}
GLM_FUNC_QUALIFIER half const & tvec3<half>::operator[]
(
tvec3<half>::size_type i
) const
{
assert(/*i >= tvec3<half>::size_type(0) &&*/ i < tvec3<half>::value_size());
return (&x)[i];
}
//////////////////////////////////////
// Implicit basic constructors
GLM_FUNC_QUALIFIER tvec3<half>::tvec3() :
x(half(0)),
y(half(0)),
z(half(0))
{}
GLM_FUNC_QUALIFIER tvec3<half>::tvec3
(
tvec3<half> const & v
) :
x(v.x),
y(v.y),
z(v.z)
{}
//////////////////////////////////////
// Explicit basic constructors
GLM_FUNC_QUALIFIER tvec3<half>::tvec3
(
half const & s
) :
x(s),
y(s),
z(s)
{}
GLM_FUNC_QUALIFIER tvec3<half>::tvec3
(
half const & s0,
half const & s1,
half const & s2
) :
x(s0),
y(s1),
z(s2)
{}
//////////////////////////////////////
// Swizzle constructors
GLM_FUNC_QUALIFIER tvec3<half>::tvec3
(
tref3<half> const & r
) :
x(r.x),
y(r.y),
z(r.z)
{}
//////////////////////////////////////
// Convertion scalar constructors
template <typename U>
GLM_FUNC_QUALIFIER tvec3<half>::tvec3
(
U const & x
) :
x(half(x)),
y(half(x)),
z(half(x))
{}
template <typename A, typename B, typename C>
GLM_FUNC_QUALIFIER tvec3<half>::tvec3
(
A const & x,
B const & y,
C const & z
) :
x(half(x)),
y(half(y)),
z(half(z))
{}
//////////////////////////////////////
// Convertion vector constructors
template <typename A, typename B>
GLM_FUNC_QUALIFIER tvec3<half>::tvec3
(
tvec2<A> const & v,
B const & s
) :
x(half(v.x)),
y(half(v.y)),
z(half(s))
{}
template <typename A, typename B>
GLM_FUNC_QUALIFIER tvec3<half>::tvec3
(
A const & s,
tvec2<B> const & v
) :
x(half(s)),
y(half(v.x)),
z(half(v.y))
{}
template <typename U>
GLM_FUNC_QUALIFIER tvec3<half>::tvec3
(
tvec3<U> const & v
) :
x(half(v.x)),
y(half(v.y)),
z(half(v.z))
{}
template <typename U>
GLM_FUNC_QUALIFIER tvec3<half>::tvec3
(
tvec4<U> const & v
) :
x(half(v.x)),
y(half(v.y)),
z(half(v.z))
{}
//////////////////////////////////////
// Unary arithmetic operators
GLM_FUNC_QUALIFIER tvec3<half> & tvec3<half>::operator=
(
tvec3<half> const & v
)
{
this->x = v.x;
this->y = v.y;
this->z = v.z;
return *this;
}
GLM_FUNC_QUALIFIER tvec3<half> & tvec3<half>::operator+=
(
half const & s
)
{
this->x += s;
this->y += s;
this->z += s;
return *this;
}
GLM_FUNC_QUALIFIER tvec3<half> & tvec3<half>::operator+=
(
tvec3<half> const & v
)
{
this->x += v.x;
this->y += v.y;
this->z += v.z;
return *this;
}
GLM_FUNC_QUALIFIER tvec3<half> & tvec3<half>::operator-=
(
half const & s
)
{
this->x -= s;
this->y -= s;
this->z -= s;
return *this;
}
GLM_FUNC_QUALIFIER tvec3<half> & tvec3<half>::operator-=
(
tvec3<half> const & v
)
{
this->x -= v.x;
this->y -= v.y;
this->z -= v.z;
return *this;
}
GLM_FUNC_QUALIFIER tvec3<half> & tvec3<half>::operator*=
(
half const & s
)
{
this->x *= s;
this->y *= s;
this->z *= s;
return *this;
}
GLM_FUNC_QUALIFIER tvec3<half> & tvec3<half>::operator*=
(
tvec3<half> const & v
)
{
this->x *= v.x;
this->y *= v.y;
this->z *= v.z;
return *this;
}
GLM_FUNC_QUALIFIER tvec3<half> & tvec3<half>::operator/=
(
half const & s
)
{
this->x /= s;
this->y /= s;
this->z /= s;
return *this;
}
GLM_FUNC_QUALIFIER tvec3<half> & tvec3<half>::operator/=
(
tvec3<half> const & v
)
{
this->x /= v.x;
this->y /= v.y;
this->z /= v.z;
return *this;
}
GLM_FUNC_QUALIFIER tvec3<half> & tvec3<half>::operator++()
{
++this->x;
++this->y;
++this->z;
return *this;
}
GLM_FUNC_QUALIFIER tvec3<half> & tvec3<half>::operator--()
{
--this->x;
--this->y;
--this->z;
return *this;
}
//////////////////////////////////////
// Swizzle operators
GLM_FUNC_QUALIFIER half tvec3<half>::swizzle(comp x) const
{
return (*this)[x];
}
GLM_FUNC_QUALIFIER tvec2<half> tvec3<half>::swizzle(comp x, comp y) const
{
return tvec2<half>(
(*this)[x],
(*this)[y]);
}
GLM_FUNC_QUALIFIER tvec3<half> tvec3<half>::swizzle(comp x, comp y, comp z) const
{
return tvec3<half>(
(*this)[x],
(*this)[y],
(*this)[z]);
}
GLM_FUNC_QUALIFIER tvec4<half> tvec3<half>::swizzle(comp x, comp y, comp z, comp w) const
{
return tvec4<half>(
(*this)[x],
(*this)[y],
(*this)[z],
(*this)[w]);
}
GLM_FUNC_QUALIFIER tref3<half> tvec3<half>::swizzle(comp x, comp y, comp z)
{
return tref3<half>(
(*this)[x],
(*this)[y],
(*this)[z]);
}
//////////////////////////////////////
// hvec4
GLM_FUNC_QUALIFIER tvec4<half>::size_type tvec4<half>::length() const
{
return 4;
}
GLM_FUNC_QUALIFIER tvec4<half>::size_type tvec4<half>::value_size()
{
return 4;
}
//////////////////////////////////////
// Accesses
GLM_FUNC_QUALIFIER half & tvec4<half>::operator[]
(
tvec4<half>::size_type i
)
{
assert(/*i >= tvec4<half>::size_type(0) && */i < tvec4<half>::value_size());
return (&x)[i];
}
GLM_FUNC_QUALIFIER half const & tvec4<half>::operator[]
(
tvec4<half>::size_type i
) const
{
assert(/*i >= tvec4<half>::size_type(0) && */i < tvec4<half>::value_size());
return (&x)[i];
}
//////////////////////////////////////
// Implicit basic constructors
GLM_FUNC_QUALIFIER tvec4<half>::tvec4() :
x(half(0)),
y(half(0)),
z(half(0)),
w(half(0))
{}
GLM_FUNC_QUALIFIER tvec4<half>::tvec4
(
tvec4<half> const & v
) :
x(v.x),
y(v.y),
z(v.z),
w(v.w)
{}
//////////////////////////////////////
// Explicit basic constructors
GLM_FUNC_QUALIFIER tvec4<half>::tvec4
(
half const & s
) :
x(s),
y(s),
z(s),
w(s)
{}
GLM_FUNC_QUALIFIER tvec4<half>::tvec4
(
half const & s1,
half const & s2,
half const & s3,
half const & s4
) :
x(s1),
y(s2),
z(s3),
w(s4)
{}
//////////////////////////////////////
// Swizzle constructors
GLM_FUNC_QUALIFIER tvec4<half>::tvec4
(
tref4<half> const & r
) :
x(r.x),
y(r.y),
z(r.z),
w(r.w)
{}
//////////////////////////////////////
// Convertion scalar constructors
template <typename U>
GLM_FUNC_QUALIFIER tvec4<half>::tvec4
(
U const & x
) :
x(half(x)),
y(half(x)),
z(half(x)),
w(half(x))
{}
template <typename A, typename B, typename C, typename D>
GLM_FUNC_QUALIFIER tvec4<half>::tvec4
(
A const & x,
B const & y,
C const & z,
D const & w
) :
x(half(x)),
y(half(y)),
z(half(z)),
w(half(w))
{}
//////////////////////////////////////
// Convertion vector constructors
template <typename A, typename B, typename C>
GLM_FUNC_QUALIFIER tvec4<half>::tvec4
(
tvec2<A> const & v,
B const & s1,
C const & s2
) :
x(half(v.x)),
y(half(v.y)),
z(half(s1)),
w(half(s2))
{}
template <typename A, typename B, typename C>
GLM_FUNC_QUALIFIER tvec4<half>::tvec4
(
A const & s1,
tvec2<B> const & v,
C const & s2
) :
x(half(s1)),
y(half(v.x)),
z(half(v.y)),
w(half(s2))
{}
template <typename A, typename B, typename C>
GLM_FUNC_QUALIFIER tvec4<half>::tvec4
(
A const & s1,
B const & s2,
tvec2<C> const & v
) :
x(half(s1)),
y(half(s2)),
z(half(v.x)),
w(half(v.y))
{}
template <typename A, typename B>
GLM_FUNC_QUALIFIER tvec4<half>::tvec4
(
tvec3<A> const & v,
B const & s
) :
x(half(v.x)),
y(half(v.y)),
z(half(v.z)),
w(half(s))
{}
template <typename A, typename B>
GLM_FUNC_QUALIFIER tvec4<half>::tvec4
(
A const & s,
tvec3<B> const & v
) :
x(half(s)),
y(half(v.x)),
z(half(v.y)),
w(half(v.z))
{}
template <typename A, typename B>
GLM_FUNC_QUALIFIER tvec4<half>::tvec4
(
tvec2<A> const & v1,
tvec2<B> const & v2
) :
x(half(v1.x)),
y(half(v1.y)),
z(half(v2.x)),
w(half(v2.y))
{}
template <typename U>
GLM_FUNC_QUALIFIER tvec4<half>::tvec4
(
tvec4<U> const & v
) :
x(half(v.x)),
y(half(v.y)),
z(half(v.z)),
w(half(v.w))
{}
//////////////////////////////////////
// Unary arithmetic operators
GLM_FUNC_QUALIFIER tvec4<half>& tvec4<half>::operator=
(
tvec4<half> const & v
)
{
this->x = v.x;
this->y = v.y;
this->z = v.z;
this->w = v.w;
return *this;
}
GLM_FUNC_QUALIFIER tvec4<half>& tvec4<half>::operator+=
(
half const & s
)
{
this->x += s;
this->y += s;
this->z += s;
this->w += s;
return *this;
}
GLM_FUNC_QUALIFIER tvec4<half>& tvec4<half>::operator+=
(
tvec4<half> const & v
)
{
this->x += v.x;
this->y += v.y;
this->z += v.z;
this->w += v.w;
return *this;
}
GLM_FUNC_QUALIFIER tvec4<half>& tvec4<half>::operator-=
(
half const & s
)
{
this->x -= s;
this->y -= s;
this->z -= s;
this->w -= s;
return *this;
}
GLM_FUNC_QUALIFIER tvec4<half>& tvec4<half>::operator-=
(
tvec4<half> const & v
)
{
this->x -= v.x;
this->y -= v.y;
this->z -= v.z;
this->w -= v.w;
return *this;
}
GLM_FUNC_QUALIFIER tvec4<half>& tvec4<half>::operator*=
(
half const & s
)
{
this->x *= s;
this->y *= s;
this->z *= s;
this->w *= s;
return *this;
}
GLM_FUNC_QUALIFIER tvec4<half>& tvec4<half>::operator*=
(
tvec4<half> const & v
)
{
this->x *= v.x;
this->y *= v.y;
this->z *= v.z;
this->w *= v.w;
return *this;
}
GLM_FUNC_QUALIFIER tvec4<half>& tvec4<half>::operator/=
(
half const & s
)
{
this->x /= s;
this->y /= s;
this->z /= s;
this->w /= s;
return *this;
}
GLM_FUNC_QUALIFIER tvec4<half>& tvec4<half>::operator/=
(
tvec4<half> const & v
)
{
this->x /= v.x;
this->y /= v.y;
this->z /= v.z;
this->w /= v.w;
return *this;
}
GLM_FUNC_QUALIFIER tvec4<half>& tvec4<half>::operator++()
{
++this->x;
++this->y;
++this->z;
++this->w;
return *this;
}
GLM_FUNC_QUALIFIER tvec4<half>& tvec4<half>::operator--()
{
--this->x;
--this->y;
--this->z;
--this->w;
return *this;
}
//////////////////////////////////////
// Swizzle operators
GLM_FUNC_QUALIFIER half tvec4<half>::swizzle(comp x) const
{
return (*this)[x];
}
GLM_FUNC_QUALIFIER tvec2<half> tvec4<half>::swizzle(comp x, comp y) const
{
return tvec2<half>(
(*this)[x],
(*this)[y]);
}
GLM_FUNC_QUALIFIER tvec3<half> tvec4<half>::swizzle(comp x, comp y, comp z) const
{
return tvec3<half>(
(*this)[x],
(*this)[y],
(*this)[z]);
}
GLM_FUNC_QUALIFIER tvec4<half> tvec4<half>::swizzle(comp x, comp y, comp z, comp w) const
{
return tvec4<half>(
(*this)[x],
(*this)[y],
(*this)[z],
(*this)[w]);
}
GLM_FUNC_QUALIFIER tref4<half> tvec4<half>::swizzle(comp x, comp y, comp z, comp w)
{
return tref4<half>(
(*this)[x],
(*this)[y],
(*this)[z],
(*this)[w]);
}
#endif//(GLM_COMPONENT == GLM_COMPONENT_CXX98)
}//namespace detail
GLM_FUNC_QUALIFIER half abs(half const & x)
{
return float(x) >= float(0) ? x : -x;
}
GLM_FUNC_QUALIFIER hvec2 abs(hvec2 const & v)
{
return hvec2(
float(v.x) >= float(0) ? v.x : -v.x,
float(v.y) >= float(0) ? v.y : -v.y);
}
GLM_FUNC_QUALIFIER hvec3 abs(hvec3 const & v)
{
return hvec3(
float(v.x) >= float(0) ? v.x : -v.x,
float(v.y) >= float(0) ? v.y : -v.y,
float(v.z) >= float(0) ? v.z : -v.z);
}
GLM_FUNC_QUALIFIER hvec4 abs(hvec4 const & v)
{
return hvec4(
float(v.x) >= float(0) ? v.x : -v.x,
float(v.y) >= float(0) ? v.y : -v.y,
float(v.z) >= float(0) ? v.z : -v.z,
float(v.w) >= float(0) ? v.w : -v.w);
}
template <>
GLM_FUNC_QUALIFIER glm::half mix
(
glm::half const & x,
glm::half const & y,
bool const & a
)
{
return a ? y : x;
}
}//namespace glm