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Make matrix relational constexpr

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This commit is contained in:
Christophe Riccio 2018-08-07 01:22:19 +02:00
parent 65655abd32
commit cf6bf16d62
2 changed files with 69 additions and 17 deletions
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12
glm/ext/matrix_relational.hpp
View File

@ -35,7 +35,7 @@ namespace glm
///
/// @see ext_matrix_relational
template<length_t C, length_t R, typename T, qualifier Q>
GLM_FUNC_DECL vec<C, bool, Q> equal(mat<C, R, T, Q> const& x, mat<C, R, T, Q> const& y);
GLM_FUNC_DECL GLM_CONSTEXPR vec<C, bool, Q> equal(mat<C, R, T, Q> const& x, mat<C, R, T, Q> const& y);
/// Returns the component-wise comparison of |x - y| < epsilon.
/// True if this expression is satisfied.
@ -47,7 +47,7 @@ namespace glm
///
/// @see ext_matrix_relational
template<length_t C, length_t R, typename T, qualifier Q>
GLM_FUNC_DECL vec<C, bool, Q> equal(mat<C, R, T, Q> const& x, mat<C, R, T, Q> const& y, T epsilon);
GLM_FUNC_DECL GLM_CONSTEXPR vec<C, bool, Q> equal(mat<C, R, T, Q> const& x, mat<C, R, T, Q> const& y, T epsilon);
/// Returns the component-wise comparison of |x - y| < epsilon.
/// True if this expression is satisfied.
@ -59,7 +59,7 @@ namespace glm
///
/// @see ext_matrix_relational
template<length_t C, length_t R, typename T, qualifier Q>
GLM_FUNC_DECL vec<C, bool, Q> equal(mat<C, R, T, Q> const& x, mat<C, R, T, Q> const& y, vec<C, T, Q> const& epsilon);
GLM_FUNC_DECL GLM_CONSTEXPR vec<C, bool, Q> equal(mat<C, R, T, Q> const& x, mat<C, R, T, Q> const& y, vec<C, T, Q> const& epsilon);
/// Perform a component-wise not-equal-to comparison of two matrices.
/// Return a boolean vector which components value is True if this expression is satisfied per column of the matrices.
@ -71,7 +71,7 @@ namespace glm
///
/// @see ext_matrix_relational
template<length_t C, length_t R, typename T, qualifier Q>
GLM_FUNC_DECL vec<C, bool, Q> notEqual(mat<C, R, T, Q> const& x, mat<C, R, T, Q> const& y);
GLM_FUNC_DECL GLM_CONSTEXPR vec<C, bool, Q> notEqual(mat<C, R, T, Q> const& x, mat<C, R, T, Q> const& y);
/// Returns the component-wise comparison of |x - y| < epsilon.
/// True if this expression is not satisfied.
@ -83,7 +83,7 @@ namespace glm
///
/// @see ext_matrix_relational
template<length_t C, length_t R, typename T, qualifier Q>
GLM_FUNC_DECL vec<C, bool, Q> notEqual(mat<C, R, T, Q> const& x, mat<C, R, T, Q> const& y, T epsilon);
GLM_FUNC_DECL GLM_CONSTEXPR vec<C, bool, Q> notEqual(mat<C, R, T, Q> const& x, mat<C, R, T, Q> const& y, T epsilon);
/// Returns the component-wise comparison of |x - y| >= epsilon.
/// True if this expression is not satisfied.
@ -95,7 +95,7 @@ namespace glm
///
/// @see ext_vector_relational
template<length_t C, length_t R, typename T, qualifier Q>
GLM_FUNC_DECL vec<C, bool, Q> notEqual(mat<C, R, T, Q> const& x, mat<C, R, T, Q> const& y, vec<C, T, Q> const& epsilon);
GLM_FUNC_DECL GLM_CONSTEXPR vec<C, bool, Q> notEqual(mat<C, R, T, Q> const& x, mat<C, R, T, Q> const& y, vec<C, T, Q> const& epsilon);
/// @}
}//namespace glm

74
glm/ext/matrix_relational.inl
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@ -5,47 +5,99 @@
#include "../ext/vector_relational.hpp"
#include "../common.hpp"
namespace glm
namespace glm{
namespace detail
{
enum matrix_relational_type
{
MAT_EQUAL,
MAT_NOT_EQUAL
};
template <relational_type R>
struct matrix_relational
{
template<typename vecType, typename T>
GLM_FUNC_QUALIFIER GLM_CONSTEXPR static bool call(vecType const& Src0, vecType const& Src1, T Epsilon);
};
template <>
struct matrix_relational<EQUAL>
{
template<typename vecType, typename T>
GLM_FUNC_QUALIFIER GLM_CONSTEXPR static bool call(vecType const& Src0, vecType const& Src1, T Epsilon)
{
return all(equal(Src0, Src1, Epsilon));
}
};
template <>
struct matrix_relational<NOT_EQUAL>
{
template<typename vecType, typename T>
GLM_FUNC_QUALIFIER GLM_CONSTEXPR static bool call(vecType const& Src0, vecType const& Src1, T Epsilon)
{
return any(notEqual(Src0, Src1, Epsilon));
}
};
template<length_t I, length_t N, relational_type R>
struct loop_matrix_relational
{
template<typename vecBType, typename matType, typename vecType>
GLM_FUNC_QUALIFIER GLM_CONSTEXPR static void call(vecBType& Dst, matType const& Src0, matType const& Src1, vecType const& Epsilon)
{
Dst[I] = matrix_relational<R>::call(Src0[I], Src1[I], Epsilon[I]);
loop_matrix_relational<I + 1, N, R>::call(Dst, Src0, Src1, Epsilon);
}
};
template <length_t N, relational_type R>
struct loop_matrix_relational<N, N, R>
{
template<typename vecBType, typename matType, typename vecType>
GLM_FUNC_QUALIFIER GLM_CONSTEXPR static void call(vecBType&, matType const&, matType const&, vecType const&)
{}
};
}//namespace detail
template<length_t C, length_t R, typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<C, bool, Q> equal(mat<C, R, T, Q> const& a, mat<C, R, T, Q> const& b)
GLM_FUNC_QUALIFIER GLM_CONSTEXPR vec<C, bool, Q> equal(mat<C, R, T, Q> const& a, mat<C, R, T, Q> const& b)
{
return equal(a, b, static_cast<T>(0));
}
template<length_t C, length_t R, typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<C, bool, Q> equal(mat<C, R, T, Q> const& a, mat<C, R, T, Q> const& b, T epsilon)
GLM_FUNC_QUALIFIER GLM_CONSTEXPR vec<C, bool, Q> equal(mat<C, R, T, Q> const& a, mat<C, R, T, Q> const& b, T epsilon)
{
return equal(a, b, vec<C, T, Q>(epsilon));
}
template<length_t C, length_t R, typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<C, bool, Q> equal(mat<C, R, T, Q> const& a, mat<C, R, T, Q> const& b, vec<C, T, Q> const& epsilon)
GLM_FUNC_QUALIFIER GLM_CONSTEXPR vec<C, bool, Q> equal(mat<C, R, T, Q> const& a, mat<C, R, T, Q> const& b, vec<C, T, Q> const& epsilon)
{
vec<C, bool, Q> Result;
for(length_t i = 0, n = C; i < n; ++i)
Result[i] = all(equal(a[i], b[i], epsilon[i]));
detail::loop_matrix_relational<0, C, detail::EQUAL>::call(Result, a, b, epsilon);
return Result;
}
template<length_t C, length_t R, typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<C, bool, Q> notEqual(mat<C, R, T, Q> const& x, mat<C, R, T, Q> const& y)
GLM_FUNC_QUALIFIER GLM_CONSTEXPR vec<C, bool, Q> notEqual(mat<C, R, T, Q> const& x, mat<C, R, T, Q> const& y)
{
return notEqual(x, y, static_cast<T>(0));
}
template<length_t C, length_t R, typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<C, bool, Q> notEqual(mat<C, R, T, Q> const& x, mat<C, R, T, Q> const& y, T epsilon)
GLM_FUNC_QUALIFIER GLM_CONSTEXPR vec<C, bool, Q> notEqual(mat<C, R, T, Q> const& x, mat<C, R, T, Q> const& y, T epsilon)
{
return notEqual(x, y, vec<C, T, Q>(epsilon));
}
template<length_t C, length_t R, typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<C, bool, Q> notEqual(mat<C, R, T, Q> const& a, mat<C, R, T, Q> const& b, vec<C, T, Q> const& epsilon)
GLM_FUNC_QUALIFIER GLM_CONSTEXPR vec<C, bool, Q> notEqual(mat<C, R, T, Q> const& a, mat<C, R, T, Q> const& b, vec<C, T, Q> const& epsilon)
{
vec<C, bool, Q> Result;
for(length_t i = 0, n = C; i < n; ++i)
Result[i] = any(notEqual(a[i], b[i], epsilon[i]));
detail::loop_matrix_relational<0, C, detail::NOT_EQUAL>::call(Result, a, b, epsilon);
return Result;
}
}//namespace glm