Function dot

Source/astcenc_vecmathlib_common_4.h:306–310

* @brief Return the dot product for the full 4 lanes, returning vector. */

 * @brief Return the dot product for the full 4 lanes, returning vector.
 */
ASTCENC_SIMD_INLINE vfloat4 dot(vfloat4 a, vfloat4 b)
{
	vfloat4 m = a * b;
	return vfloat4(hadd_s(m));
}

/**
 * @brief Return the dot product for the bottom 3 lanes, returning scalar.