Function float_as_int

Source/astcenc_vecmathlib_none_4.h:1061–1068

* @brief Return a float value as an integer bit pattern (i.e. no conversion). * * It is a common trick to convert floats into integer bit patterns, perform * some bit hackery based on knowledge they are IEEE 754 layout, and then * convert them back again. This is the first half of that flip. */

 * convert them back again. This is the first half of that flip.
 */
ASTCENC_SIMD_INLINE vint4 float_as_int(vfloat4 a)
{
	static_assert(sizeof(int) == sizeof(float), "int must be 32-bit");

	vint4 r;
	std::memcpy(r.m, a.m, 4 * sizeof(int));
	return r;
}

/**
 * @brief Return a integer value as a float bit pattern (i.e. no conversion).