glm/glm/gtx/associated_min_max.inl
John McFarlane 506a487d24 parameterize number of dimensions of vector in tvec<D, T, P>
- specializes for 1, 2, 3 and 4-dimensional vector types
  which are then aliased as tvec1, tvec2, tvec3 and tvec4
- requires C++11 aliases; breaks compatability with C++03
- tested on:
  - clang-3.5.2, clang-3.8.0
  - gcc 4.8.5, gcc 5.4.1, gcc 6.2.0

TODO:
- still uses template template parameters - most can probably be removed
- some definitions might now be de-duplicated
2016-12-28 17:07:12 -08:00

356 lines
9.8 KiB
C++

/// @ref gtx_associated_min_max
/// @file glm/gtx/associated_min_max.inl
namespace glm{
// Min comparison between 2 variables
template<typename T, typename U, precision P>
GLM_FUNC_QUALIFIER U associatedMin(T x, U a, T y, U b)
{
return x < y ? a : b;
}
template<int D, typename T, typename U, precision P, template <int, typename, precision> class vecType>
GLM_FUNC_QUALIFIER tvec2<U, P> associatedMin
(
vecType<D, T, P> const & x, vecType<D, U, P> const & a,
vecType<D, T, P> const & y, vecType<D, U, P> const & b
)
{
vecType<D, U, P> Result(uninitialize);
for(length_t i = 0, n = Result.length(); i < n; ++i)
Result[i] = x[i] < y[i] ? a[i] : b[i];
return Result;
}
template<int D, typename T, typename U, precision P, template <int, typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<D, U, P> associatedMin
(
T x, const vecType<D, U, P>& a,
T y, const vecType<D, U, P>& b
)
{
vecType<D, U, P> Result(uninitialize);
for(length_t i = 0, n = Result.length(); i < n; ++i)
Result[i] = x < y ? a[i] : b[i];
return Result;
}
template<int D, typename T, typename U, precision P, template <int, typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<D, U, P> associatedMin
(
vecType<D, T, P> const & x, U a,
vecType<D, T, P> const & y, U b
)
{
vecType<D, U, P> Result(uninitialize);
for(length_t i = 0, n = Result.length(); i < n; ++i)
Result[i] = x[i] < y[i] ? a : b;
return Result;
}
// Min comparison between 3 variables
template<typename T, typename U>
GLM_FUNC_QUALIFIER U associatedMin
(
T x, U a,
T y, U b,
T z, U c
)
{
U Result = x < y ? (x < z ? a : c) : (y < z ? b : c);
return Result;
}
template<int D, typename T, typename U, precision P, template <int, typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<D, U, P> associatedMin
(
vecType<D, T, P> const & x, vecType<D, U, P> const & a,
vecType<D, T, P> const & y, vecType<D, U, P> const & b,
vecType<D, T, P> const & z, vecType<D, U, P> const & c
)
{
vecType<D, U, P> Result(uninitialize);
for(length_t i = 0, n = Result.length(); i < n; ++i)
Result[i] = x[i] < y[i] ? (x[i] < z[i] ? a[i] : c[i]) : (y[i] < z[i] ? b[i] : c[i]);
return Result;
}
// Min comparison between 4 variables
template<typename T, typename U>
GLM_FUNC_QUALIFIER U associatedMin
(
T x, U a,
T y, U b,
T z, U c,
T w, U d
)
{
T Test1 = min(x, y);
T Test2 = min(z, w);;
U Result1 = x < y ? a : b;
U Result2 = z < w ? c : d;
U Result = Test1 < Test2 ? Result1 : Result2;
return Result;
}
// Min comparison between 4 variables
template<int D, typename T, typename U, precision P, template <int, typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<D, U, P> associatedMin
(
vecType<D, T, P> const & x, vecType<D, U, P> const & a,
vecType<D, T, P> const & y, vecType<D, U, P> const & b,
vecType<D, T, P> const & z, vecType<D, U, P> const & c,
vecType<D, T, P> const & w, vecType<D, U, P> const & d
)
{
vecType<D, U, P> Result(uninitialize);
for(length_t i = 0, n = Result.length(); i < n; ++i)
{
T Test1 = min(x[i], y[i]);
T Test2 = min(z[i], w[i]);
U Result1 = x[i] < y[i] ? a[i] : b[i];
U Result2 = z[i] < w[i] ? c[i] : d[i];
Result[i] = Test1 < Test2 ? Result1 : Result2;
}
return Result;
}
// Min comparison between 4 variables
template<int D, typename T, typename U, precision P, template <int, typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<D, U, P> associatedMin
(
T x, vecType<D, U, P> const & a,
T y, vecType<D, U, P> const & b,
T z, vecType<D, U, P> const & c,
T w, vecType<D, U, P> const & d
)
{
T Test1 = min(x, y);
T Test2 = min(z, w);
vecType<D, U, P> Result(uninitialize);
for(length_t i = 0, n = Result.length(); i < n; ++i)
{
U Result1 = x < y ? a[i] : b[i];
U Result2 = z < w ? c[i] : d[i];
Result[i] = Test1 < Test2 ? Result1 : Result2;
}
return Result;
}
// Min comparison between 4 variables
template<int D, typename T, typename U, precision P, template <int, typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<D, U, P> associatedMin
(
vecType<D, T, P> const & x, U a,
vecType<D, T, P> const & y, U b,
vecType<D, T, P> const & z, U c,
vecType<D, T, P> const & w, U d
)
{
vecType<D, U, P> Result(uninitialize);
for(length_t i = 0, n = Result.length(); i < n; ++i)
{
T Test1 = min(x[i], y[i]);
T Test2 = min(z[i], w[i]);;
U Result1 = x[i] < y[i] ? a : b;
U Result2 = z[i] < w[i] ? c : d;
Result[i] = Test1 < Test2 ? Result1 : Result2;
}
return Result;
}
// Max comparison between 2 variables
template<typename T, typename U>
GLM_FUNC_QUALIFIER U associatedMax(T x, U a, T y, U b)
{
return x > y ? a : b;
}
// Max comparison between 2 variables
template<int D, typename T, typename U, precision P, template <int, typename, precision> class vecType>
GLM_FUNC_QUALIFIER tvec2<U, P> associatedMax
(
vecType<D, T, P> const & x, vecType<D, U, P> const & a,
vecType<D, T, P> const & y, vecType<D, U, P> const & b
)
{
vecType<D, U, P> Result(uninitialize);
for(length_t i = 0, n = Result.length(); i < n; ++i)
Result[i] = x[i] > y[i] ? a[i] : b[i];
return Result;
}
// Max comparison between 2 variables
template<int D, typename T, typename U, precision P, template <int, typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<D, T, P> associatedMax
(
T x, vecType<D, U, P> const & a,
T y, vecType<D, U, P> const & b
)
{
vecType<D, U, P> Result(uninitialize);
for(length_t i = 0, n = Result.length(); i < n; ++i)
Result[i] = x > y ? a[i] : b[i];
return Result;
}
// Max comparison between 2 variables
template<int D, typename T, typename U, precision P, template <int, typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<D, U, P> associatedMax
(
vecType<D, T, P> const & x, U a,
vecType<D, T, P> const & y, U b
)
{
vecType<D, T, P> Result(uninitialize);
for(length_t i = 0, n = Result.length(); i < n; ++i)
Result[i] = x[i] > y[i] ? a : b;
return Result;
}
// Max comparison between 3 variables
template<typename T, typename U>
GLM_FUNC_QUALIFIER U associatedMax
(
T x, U a,
T y, U b,
T z, U c
)
{
U Result = x > y ? (x > z ? a : c) : (y > z ? b : c);
return Result;
}
// Max comparison between 3 variables
template<int D, typename T, typename U, precision P, template <int, typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<D, U, P> associatedMax
(
vecType<D, T, P> const & x, vecType<D, U, P> const & a,
vecType<D, T, P> const & y, vecType<D, U, P> const & b,
vecType<D, T, P> const & z, vecType<D, U, P> const & c
)
{
vecType<D, U, P> Result(uninitialize);
for(length_t i = 0, n = Result.length(); i < n; ++i)
Result[i] = x[i] > y[i] ? (x[i] > z[i] ? a[i] : c[i]) : (y[i] > z[i] ? b[i] : c[i]);
return Result;
}
// Max comparison between 3 variables
template<int D, typename T, typename U, precision P, template <int, typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<D, T, P> associatedMax
(
T x, vecType<D, U, P> const & a,
T y, vecType<D, U, P> const & b,
T z, vecType<D, U, P> const & c
)
{
vecType<D, U, P> Result(uninitialize);
for(length_t i = 0, n = Result.length(); i < n; ++i)
Result[i] = x > y ? (x > z ? a[i] : c[i]) : (y > z ? b[i] : c[i]);
return Result;
}
// Max comparison between 3 variables
template<int D, typename T, typename U, precision P, template <int, typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<D, U, P> associatedMax
(
vecType<D, T, P> const & x, U a,
vecType<D, T, P> const & y, U b,
vecType<D, T, P> const & z, U c
)
{
vecType<D, T, P> Result(uninitialize);
for(length_t i = 0, n = Result.length(); i < n; ++i)
Result[i] = x[i] > y[i] ? (x[i] > z[i] ? a : c) : (y[i] > z[i] ? b : c);
return Result;
}
// Max comparison between 4 variables
template<typename T, typename U>
GLM_FUNC_QUALIFIER U associatedMax
(
T x, U a,
T y, U b,
T z, U c,
T w, U d
)
{
T Test1 = max(x, y);
T Test2 = max(z, w);;
U Result1 = x > y ? a : b;
U Result2 = z > w ? c : d;
U Result = Test1 > Test2 ? Result1 : Result2;
return Result;
}
// Max comparison between 4 variables
template<int D, typename T, typename U, precision P, template <int, typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<D, U, P> associatedMax
(
vecType<D, T, P> const & x, vecType<D, U, P> const & a,
vecType<D, T, P> const & y, vecType<D, U, P> const & b,
vecType<D, T, P> const & z, vecType<D, U, P> const & c,
vecType<D, T, P> const & w, vecType<D, U, P> const & d
)
{
vecType<D, U, P> Result(uninitialize);
for(length_t i = 0, n = Result.length(); i < n; ++i)
{
T Test1 = max(x[i], y[i]);
T Test2 = max(z[i], w[i]);
U Result1 = x[i] > y[i] ? a[i] : b[i];
U Result2 = z[i] > w[i] ? c[i] : d[i];
Result[i] = Test1 > Test2 ? Result1 : Result2;
}
return Result;
}
// Max comparison between 4 variables
template<int D, typename T, typename U, precision P, template <int, typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<D, U, P> associatedMax
(
T x, vecType<D, U, P> const & a,
T y, vecType<D, U, P> const & b,
T z, vecType<D, U, P> const & c,
T w, vecType<D, U, P> const & d
)
{
T Test1 = max(x, y);
T Test2 = max(z, w);
vecType<D, U, P> Result(uninitialize);
for(length_t i = 0, n = Result.length(); i < n; ++i)
{
U Result1 = x > y ? a[i] : b[i];
U Result2 = z > w ? c[i] : d[i];
Result[i] = Test1 > Test2 ? Result1 : Result2;
}
return Result;
}
// Max comparison between 4 variables
template<int D, typename T, typename U, precision P, template <int, typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<D, U, P> associatedMax
(
vecType<D, T, P> const & x, U a,
vecType<D, T, P> const & y, U b,
vecType<D, T, P> const & z, U c,
vecType<D, T, P> const & w, U d
)
{
vecType<D, U, P> Result(uninitialize);
for(length_t i = 0, n = Result.length(); i < n; ++i)
{
T Test1 = max(x[i], y[i]);
T Test2 = max(z[i], w[i]);;
U Result1 = x[i] > y[i] ? a : b;
U Result2 = z[i] > w[i] ? c : d;
Result[i] = Test1 > Test2 ? Result1 : Result2;
}
return Result;
}
}//namespace glm