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fix: glm_vec4_round for SSE2

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Gottfried Leibniz 2023-01-12 16:26:13 -04:00
parent fc8f4bb442
commit 496f304e5a
1 changed files with 4 additions and 12 deletions
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16
glm/simd/common.h
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@ -117,7 +117,10 @@ GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_round(glm_vec4 x)
glm_vec4 const or0 = _mm_or_ps(and0, _mm_set_ps1(8388608.0f));
glm_vec4 const add0 = glm_vec4_add(x, or0);
glm_vec4 const sub0 = glm_vec4_sub(add0, or0);
return sub0;
glm_vec4 const abs0 = glm_vec4_abs(x); // keep values too large for a fraction unchanged
glm_vec4 const cmp = _mm_cmple_ps(abs0, _mm_set_ps1(8388608.0f));
glm_vec4 const xor0 = _mm_xor_ps(_mm_and_ps(cmp, sub0), _mm_andnot_ps(cmp, x));
return xor0;
# endif
}
@ -141,17 +144,6 @@ GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_trunc(glm_vec4 x)
}
*/
//roundEven
GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_roundEven(glm_vec4 x)
{
glm_vec4 const sgn0 = _mm_castsi128_ps(_mm_set1_epi32(int(0x80000000)));
glm_vec4 const and0 = _mm_and_ps(sgn0, x);
glm_vec4 const or0 = _mm_or_ps(and0, _mm_set_ps1(8388608.0f));
glm_vec4 const add0 = glm_vec4_add(x, or0);
glm_vec4 const sub0 = glm_vec4_sub(add0, or0);
return sub0;
}
GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_ceil(glm_vec4 x)
{
# if GLM_ARCH & GLM_ARCH_SSE41_BIT