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- Added identity functions #765

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This commit is contained in:
Christophe Riccio
2018-07-26 18:00:31 +02:00
parent 6afce5da27
commit 1afa681512
7 changed files with 65 additions and 57 deletions
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60
test/gtc/gtc_quaternion.cpp
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@@ -1,4 +1,5 @@
#include <glm/gtc/quaternion.hpp>
#include <glm/gtc/matrix_transform.hpp>
#include <glm/ext/vector_relational.hpp>
#include <glm/glm.hpp>
#include <vector>
@@ -317,71 +318,16 @@ static int test_constexpr()
return 0;
}
using namespace glm;
enum genTypeEnum
{
GENTYPE_VEC,
GENTYPE_MAT,
GENTYPE_QUAT
};
template <typename genType>
struct genTypeTrait
{};
template <typename T>
struct genTypeTrait<tquat<T> >
{
static const genTypeEnum GENTYPE = GENTYPE_QUAT;
};
template <length_t C, length_t R, typename T>
struct genTypeTrait<mat<C, R, T> >
{
static const genTypeEnum GENTYPE = GENTYPE_MAT;
};
template<typename genType, genTypeEnum type>
struct init_gentype
{
};
template<typename genType>
struct init_gentype<genType, GENTYPE_QUAT>
{
static genType identity()
{
return genType(1, 0, 0, 0);
}
};
template<typename genType>
struct init_gentype<genType, GENTYPE_MAT>
{
static genType identity()
{
return genType(1);
}
};
template<typename genType>
inline genType identity()
{
//return init_gentype<genType, genType::GENTYPE>::identity();
return init_gentype<genType, genTypeTrait<genType>::GENTYPE>::identity();
}
int test_identity()
{
int Error = 0;
glm::quat const Q = identity<glm::quat>();
glm::quat const Q = glm::identity<glm::quat>();
Error += glm::all(glm::equal(Q, glm::quat(1, 0, 0, 0), 0.0001f)) ? 0 : 1;
Error += glm::any(glm::notEqual(Q, glm::quat(1, 0, 0, 0), 0.0001f)) ? 1 : 0;
glm::mat4 const M = identity<glm::mat4x4>();
glm::mat4 const M = glm::identity<glm::mat4x4>();
glm::mat4 const N(1.0f);
Error += glm::all(glm::equal(M[0], N[0], 0.0001f)) ? 0 : 1;