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Fix SIMD quat operations.

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This commit is contained in:
Woob 2023-04-02 12:55:40 -07:00
parent c6606998a5
commit 9398c5843f
1 changed files with 36 additions and 15 deletions
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21
glm/detail/type_quat_simd.inl
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@ -161,6 +161,7 @@ namespace detail
{
static vec<4, float, Q> call(qua<float, Q> const& q, vec<4, float, Q> const& v)
{
# ifdef GLM_FORCE_QUAT_DATA_XYZW
__m128 const q_wwww = _mm_shuffle_ps(q.data, q.data, _MM_SHUFFLE(3, 3, 3, 3));
__m128 const q_swp0 = _mm_shuffle_ps(q.data, q.data, _MM_SHUFFLE(3, 0, 2, 1));
__m128 const q_swp1 = _mm_shuffle_ps(q.data, q.data, _MM_SHUFFLE(3, 1, 0, 2));
@ -179,6 +180,26 @@ namespace detail
vec<4, float, Q> Result;
Result.data = _mm_add_ps(v.data, _mm_add_ps(uv, uuv));
return Result;
# else
__m128 const q_wwww = _mm_shuffle_ps(q.data, q.data, _MM_SHUFFLE(0, 0, 0, 0));
__m128 const q_swp0 = _mm_shuffle_ps(q.data, q.data, _MM_SHUFFLE(0, 1, 3, 2));
__m128 const q_swp1 = _mm_shuffle_ps(q.data, q.data, _MM_SHUFFLE(0, 2, 1, 3));
__m128 const v_swp0 = _mm_shuffle_ps(v.data, v.data, _MM_SHUFFLE(3, 0, 2, 1));
__m128 const v_swp1 = _mm_shuffle_ps(v.data, v.data, _MM_SHUFFLE(3, 1, 0, 2));
__m128 uv = _mm_sub_ps(_mm_mul_ps(q_swp0, v_swp1), _mm_mul_ps(q_swp1, v_swp0));
__m128 uv_swp0 = _mm_shuffle_ps(uv, uv, _MM_SHUFFLE(3, 0, 2, 1));
__m128 uv_swp1 = _mm_shuffle_ps(uv, uv, _MM_SHUFFLE(3, 1, 0, 2));
__m128 uuv = _mm_sub_ps(_mm_mul_ps(q_swp0, uv_swp1), _mm_mul_ps(q_swp1, uv_swp0));
__m128 const two = _mm_set1_ps(2.0f);
uv = _mm_mul_ps(uv, _mm_mul_ps(q_wwww, two));
uuv = _mm_mul_ps(uuv, two);
vec<4, float, Q> Result;
Result.data = _mm_add_ps(v.data, _mm_add_ps(uv, uuv));
return Result;
# endif
}
};
}//namespace detail