/**
* graphene_vec4_equal:
* @v1: a #graphene_vec4_t
* @v2: a #graphene_vec4_t
*
* Checks whether the two given #graphene_vec4_t are equal.
*
* Returns: `true` if the two vectors are equal, and false otherwise
*
* Since: 1.2
*/
bool
graphene_vec4_equal (const graphene_vec4_t *v1,
const graphene_vec4_t *v2)
{
if (v1 == v2)
return true;
if (v1 == NULL || v2 == NULL)
return false;
if (graphene_simd4f_cmp_eq (v1->value, v2->value))
return true;
return graphene_vec4_near (v1, v2, GRAPHENE_FLOAT_EPSILON);
}
static void
quaternion_vec4_to_from (mutest_spec_t *spec)
{
graphene_quaternion_t *q;
graphene_vec4_t v, check;
graphene_vec4_init (&v, 1.f, 2.f, 3.f, 4.f);
q = graphene_quaternion_init_from_vec4 (graphene_quaternion_alloc (), &v);
graphene_quaternion_to_vec4 (q, &check);
mutest_expect ("roundtrip between init_from_vec4 and to_vec4 to yield the same vector",
mutest_bool_value (graphene_vec4_near (&v, &check, 0.0001f)),
mutest_to_be_true,
NULL);
graphene_quaternion_free (q);
}
static void
quaternion_operators_normalize (mutest_spec_t *spec)
{
graphene_quaternion_t q1, q2;
graphene_vec4_t v1, v2;
graphene_quaternion_init (&q1, 1.f, 2.f, 3.f, 4.f);
graphene_quaternion_normalize (&q1, &q2);
graphene_vec4_init (&v1, 1.f, 2.f, 3.f, 4.f);
graphene_vec4_normalize (&v1, &v1);
graphene_quaternion_to_vec4 (&q2, &v2);
mutest_expect ("normalizing a quaternion is the same as normalizing the equivalent vec4",
mutest_bool_value (graphene_vec4_near (&v1, &v2, 0.00001f)),
mutest_to_be_true,
NULL);
}
