private static void Scale(float a, Span <float> src, Span <float> dst)
{
if (Sse.IsSupported)
{
SseIntrinsics.ScaleSrcU(a, src, dst);
}
else
{
for (int i = 0; i < dst.Length; i++)
{
dst[i] = a * src[i];
}
}
}
// destination = value * source
public static void Scale(float value, ReadOnlySpan <float> source, Span <float> destination, int count)
{
Contracts.AssertNonEmpty(source);
Contracts.AssertNonEmpty(destination);
Contracts.Assert(count > 0);
Contracts.Assert(count <= source.Length);
Contracts.Assert(count <= destination.Length);
if (Avx.IsSupported)
{
AvxIntrinsics.ScaleSrcU(value, source, destination, count);
}
else if (Sse.IsSupported)
{
SseIntrinsics.ScaleSrcU(value, source, destination, count);
}
else
{
for (int i = 0; i < count; i++)
{
destination[i] = value * source[i];
}
}
}
// dst = a * src
public static void Scale(float a, ReadOnlySpan <float> src, Span <float> dst, int count)
{
Contracts.AssertNonEmpty(src);
Contracts.AssertNonEmpty(dst);
Contracts.Assert(count > 0);
Contracts.Assert(count <= src.Length);
Contracts.Assert(count <= dst.Length);
if (Avx.IsSupported)
{
AvxIntrinsics.ScaleSrcU(a, src, dst, count);
}
else if (Sse.IsSupported)
{
SseIntrinsics.ScaleSrcU(a, src, dst, count);
}
else
{
for (int i = 0; i < count; i++)
{
dst[i] = a * src[i];
}
}
}