Function int_as_float

Source/astcenc_vecmathlib_none_4.h:1077–1082

* @brief Return a integer value as a float 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 second half of that flip. */

 * convert them back again. This is the second half of that flip.
 */
ASTCENC_SIMD_INLINE vfloat4 int_as_float(vint4 a)
{
	vfloat4 r;
	std::memcpy(r.m, a.m, 4 * sizeof(float));
	return r;
}

/*
 * Table structure for a 16x 8-bit entry table.