private static int getPadding(int isize, int ksize, int channels)
{
if (typeof(T) != typeof(float))
{
return(0);
}
int inc = channels == 3 ? 4 : (ksize >= 8 ? HWIntrinsics.VectorCount <T>() : 4) / channels;
int pad = MathUtil.DivCeiling(ksize, inc) * inc - ksize;
int thresh = channels == 4 ? 1 : HWIntrinsics.IsSupported || channels == 1 ? 2 : 3;
return(ksize < thresh || ksize + pad > isize ? 0 : pad);
}
unsafe private static void convertFloat(byte *ipstart, byte *opstart, float *igtstart, int cb)
{
byte * ip = ipstart, ipe = ipstart + cb;
float *op = (float *)opstart, igt = igtstart;
#if HWINTRINSICS
if (Avx2.IsSupported && cb >= HWIntrinsics.VectorCount <byte>())
{
convertFloatAvx2(ip, ipe, op, igt);
}
else
#endif
convertFloatScalar(ip, ipe, op, igt);
}
