Function clamp

Source/astcenc_vecmathlib_avx2_8.h:745–751

* @brief Return the clamped value between min and max. * * It is assumed that neither @c min nor @c max are NaN values. If @c a is NaN * then @c min will be returned for that lane. */

 * then @c min will be returned for that lane.
 */
ASTCENC_SIMD_INLINE vfloat8 clamp(float min, float max, vfloat8 a)
{
	// Do not reorder - second operand will return if either is NaN
	a.m = _mm256_max_ps(a.m, _mm256_set1_ps(min));
	a.m = _mm256_min_ps(a.m, _mm256_set1_ps(max));
	return a;
}

/**
 * @brief Return a clamped value between 0.0f and 1.0f.