Function floor

Source/ThirdParty/basis_universal/encoder/cppspmd_sse.h:1451–1463

}

CPPSPMD_FORCE_INLINE vfloat floor(const vfloat& a)
{
	__m128i abs_a = _mm_and_si128(_mm_castps_si128(a.m_value), _mm_set1_epi32(0x7FFFFFFFU));
	__m128i has_fractional = _mm_cmplt_epi32(abs_a, _mm_castps_si128(_mm_set1_ps(8388608.0f)));

	__m128i ai = _mm_cvtps_epi32(a.m_value);
	__m128 af = _mm_cvtepi32_ps(ai);
	__m128 changed = _mm_cvtepi32_ps(_mm_castps_si128(_mm_cmpgt_ps(af, a.m_value)));

	af = _mm_add_ps(af, changed);

	return vfloat{ blendv_mask_ps(a.m_value, af, _mm_castsi128_ps(has_fractional)) };
}

CPPSPMD_FORCE_INLINE vfloat ceil(const vfloat& a)
{