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More simd/Neon functions

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This commit is contained in:
Amaury Le Leyzour 2019-09-10 10:55:59 -07:00
parent 5868657413
commit e508cc604f
1 changed files with 44 additions and 0 deletions
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44
glm/detail/func_geometric_simd.inl
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@ -96,4 +96,48 @@ namespace detail
}//namespace detail
}//namespace glm
#elif GLM_ARCH & GLM_ARCH_NEON_BIT
namespace glm{
namespace detail
{
template<qualifier Q>
struct compute_length<4, float, Q, true>
{
GLM_FUNC_QUALIFIER static float call(vec<4, float, Q> const& v)
{
return compute_dot<vec<4, float, Q>, float, true>::call(v, v);
}
};
template<qualifier Q>
struct compute_distance<4, float, Q, true>
{
GLM_FUNC_QUALIFIER static float call(vec<4, float, Q> const& p0, vec<4, float, Q> const& p1)
{
return compute_length<4, float, Q, true>::call(p1 - p0);
}
};
template<qualifier Q>
struct compute_dot<vec<4, float, Q>, float, true>
{
GLM_FUNC_QUALIFIER static float call(vec<4, float, Q> const& x, vec<4, float, Q> const& y)
{
#if GLM_ARCH & GLM_ARCH_ARMV8_BIT
float32x4_t v = vmulq_f32(x.data, y.data);
v = vpaddq_f32(v, v);
v = vpaddq_f32(v, v);
return vgetq_lane_f32(v, 0);
#else // Armv7a with Neon
float32x4_t p = vmulq_f32(x.data, y.data);
float32x2_t v = vpadd_f32(vget_low_f32(p), vget_high_f32(p));
v = vpadd_f32(v, v);
return vget_lane_f32(v, 0);
#endif
}
};
}//namespace detail
}//namespace glm
#endif//GLM_ARCH & GLM_ARCH_SSE2_BIT