public static void Shuffle4Reduce(
ref ReadOnlySpan <byte> source,
ref Span <byte> dest,
byte control)
{
if (Avx2.IsSupported || Ssse3.IsSupported)
{
int remainder = Avx2.IsSupported
? Numerics.ModuloP2(source.Length, Vector256 <byte> .Count)
: Numerics.ModuloP2(source.Length, Vector128 <byte> .Count);
int adjustedCount = source.Length - remainder;
if (adjustedCount > 0)
{
Shuffle4(
source.Slice(0, adjustedCount),
dest.Slice(0, adjustedCount),
control);
source = source.Slice(adjustedCount);
dest = dest.Slice(adjustedCount);
}
}
}
internal static void NormalizedFloatToByteSaturateReduce(
ref ReadOnlySpan <float> source,
ref Span <byte> dest)
{
DebugGuard.IsTrue(source.Length == dest.Length, nameof(source), "Input spans must be of same length!");
int remainder = Numerics.Modulo4(source.Length);
int adjustedCount = source.Length - remainder;
if (adjustedCount > 0)
{
NormalizedFloatToByteSaturate(
source.Slice(0, adjustedCount),
dest.Slice(0, adjustedCount));
source = source.Slice(adjustedCount);
dest = dest.Slice(adjustedCount);
}
}
internal static void ByteToNormalizedFloatReduce(
ref ReadOnlySpan <byte> source,
ref Span <float> dest)
{
DebugGuard.IsTrue(source.Length == dest.Length, nameof(source), "Input spans must be of same length!");
if (!IsAvailable)
{
return;
}
int remainder = Numerics.ModuloP2(source.Length, Vector <byte> .Count);
int adjustedCount = source.Length - remainder;
if (adjustedCount > 0)
{
ByteToNormalizedFloat(source.Slice(0, adjustedCount), dest.Slice(0, adjustedCount));
source = source.Slice(adjustedCount);
dest = dest.Slice(adjustedCount);
}
}
public Color(Vector4 vector)
{
vector = Numerics.Clamp(vector, Vector4.Zero, Vector4.One);
this.boxedHighPrecisionPixel = new RgbaVector(vector.X, vector.Y, vector.Z, vector.W);
this.data = default;
}
internal static Vector4 PseudoRound(this Vector4 v)
{
Vector4 sign = Numerics.Clamp(v, new Vector4(-1), new Vector4(1));
return(v + (sign * 0.5f));
}