public void FromVector4(Vector4 vector)
{
vector = Vector4Utilities.FastClamp(vector, Vector4.Zero, Vector4.One) * Max;
this.R = (ushort)MathF.Round(vector.X);
this.G = (ushort)MathF.Round(vector.Y);
this.B = (ushort)MathF.Round(vector.Z);
}
private static ushort Pack(ref Vector4 vector)
{
vector = Vector4Utilities.FastClamp(vector, Vector4.Zero, Vector4.One);
return((ushort)((((int)Math.Round(vector.W * 15F) & 0x0F) << 12)
| (((int)Math.Round(vector.X * 15F) & 0x0F) << 8)
| (((int)Math.Round(vector.Y * 15F) & 0x0F) << 4)
| ((int)Math.Round(vector.Z * 15F) & 0x0F)));
}
public void FromVector4(Vector4 vector)
{
vector = Vector4Utilities.FastClamp(vector, Vector4.Zero, Vector4.One);
this.R = vector.X;
this.G = vector.Y;
this.B = vector.Z;
this.A = vector.W;
}
public Cmyk(Vector4 vector)
{
vector = Vector4Utilities.FastClamp(vector, Min, Max);
this.C = vector.X;
this.M = vector.Y;
this.Y = vector.Z;
this.K = vector.W;
}
private static ushort Pack(ref Vector4 vector)
{
vector = Vector4Utilities.FastClamp(vector, Vector4.Zero, Vector4.One);
return((ushort)(
(((int)Math.Round(vector.X * 31F) & 0x1F) << 10)
| (((int)Math.Round(vector.Y * 31F) & 0x1F) << 5)
| (((int)Math.Round(vector.Z * 31F) & 0x1F) << 0)
| (((int)Math.Round(vector.W) & 0x1) << 15)));
}
private static uint Pack(ref Vector4 vector)
{
vector = Vector4Utilities.FastClamp(vector, Vector4.Zero, Vector4.One) * Multiplier;
return((uint)(
(((int)Math.Round(vector.X) & 0x03FF) << 0)
| (((int)Math.Round(vector.Y) & 0x03FF) << 10)
| (((int)Math.Round(vector.Z) & 0x03FF) << 20)
| (((int)Math.Round(vector.W) & 0x03) << 30)));
}
private void Pack(ref Vector4 vector)
{
vector *= MaxBytes;
vector += Half;
vector = Vector4Utilities.FastClamp(vector, Vector4.Zero, MaxBytes);
this.R = (byte)vector.X;
this.G = (byte)vector.Y;
this.B = (byte)vector.Z;
}
public void Invoke(int y, Span <Vector4> span)
{
Span <TPixel> rowSpan = this.source.GetPixelRowSpan(y).Slice(this.startX, span.Length);
PixelOperations <TPixel> .Instance.ToVector4(this.configuration, rowSpan, span);
Vector4Utilities.Transform(span, ref Unsafe.AsRef(this.matrix));
PixelOperations <TPixel> .Instance.FromVector4Destructive(this.configuration, span, rowSpan);
}
private static uint Pack(ref Vector4 vector)
{
vector = Vector4Utilities.FastClamp(vector, MinusOne, Vector4.One) * Half;
uint byte4 = ((uint)MathF.Round(vector.X) & 0xFF) << 0;
uint byte3 = ((uint)MathF.Round(vector.Y) & 0xFF) << 8;
uint byte2 = ((uint)MathF.Round(vector.Z) & 0xFF) << 16;
uint byte1 = ((uint)MathF.Round(vector.W) & 0xFF) << 24;
return(byte4 | byte3 | byte2 | byte1);
}
internal static void ApplyBackwardConversionModifiers(Span <Vector4> vectors, PixelConversionModifiers modifiers)
{
if (modifiers.IsDefined(PixelConversionModifiers.Premultiply))
{
Vector4Utilities.UnPremultiply(vectors);
}
if (modifiers.IsDefined(PixelConversionModifiers.SRgbCompand))
{
SRgbCompanding.Compress(vectors);
}
}
private static ulong Pack(ref Vector4 vector)
{
vector = Vector4Utilities.FastClamp(vector, Min, Max);
// Clamp the value between min and max values
ulong word4 = ((ulong)Math.Round(vector.X) & 0xFFFF) << 0x00;
ulong word3 = ((ulong)Math.Round(vector.Y) & 0xFFFF) << 0x10;
ulong word2 = ((ulong)Math.Round(vector.Z) & 0xFFFF) << 0x20;
ulong word1 = ((ulong)Math.Round(vector.W) & 0xFFFF) << 0x30;
return(word4 | word3 | word2 | word1);
}
private static ulong Pack(ref Vector4 vector)
{
vector *= Max;
vector = Vector4Utilities.FastClamp(vector, Min, Max);
// Round rather than truncate.
ulong word4 = ((ulong)MathF.Round(vector.X) & 0xFFFF) << 0x00;
ulong word3 = ((ulong)MathF.Round(vector.Y) & 0xFFFF) << 0x10;
ulong word2 = ((ulong)MathF.Round(vector.Z) & 0xFFFF) << 0x20;
ulong word1 = ((ulong)MathF.Round(vector.W) & 0xFFFF) << 0x30;
return(word4 | word3 | word2 | word1);
}
private static uint Pack(ref Vector4 vector)
{
const float Max = 255F;
// Clamp the value between min and max values
vector = Vector4Utilities.FastClamp(vector, Vector4.Zero, new Vector4(Max));
uint byte4 = (uint)Math.Round(vector.X) & 0xFF;
uint byte3 = ((uint)Math.Round(vector.Y) & 0xFF) << 0x8;
uint byte2 = ((uint)Math.Round(vector.Z) & 0xFF) << 0x10;
uint byte1 = ((uint)Math.Round(vector.W) & 0xFF) << 0x18;
return(byte4 | byte3 | byte2 | byte1);
}
public void UnPremultiply_VectorSpan(int length)
{
var rnd = new Random(42);
Vector4[] source = rnd.GenerateRandomVectorArray(length, 0, 1);
Vector4[] expected = source.Select(v =>
{
Vector4Utilities.UnPremultiply(ref v);
return(v);
}).ToArray();
Vector4Utilities.UnPremultiply(source);
Assert.Equal(expected, source, this.approximateFloatComparer);
}
/// <summary>
/// Level shift by +maximum/2, clip to [0, maximum]
/// </summary>
public void NormalizeColorsInplace(float maximum)
{
var CMin4 = new Vector4(0F);
var CMax4 = new Vector4(maximum);
var COff4 = new Vector4(MathF.Ceiling(maximum / 2));
this.V0L = Vector4Utilities.FastClamp(this.V0L + COff4, CMin4, CMax4);
this.V0R = Vector4Utilities.FastClamp(this.V0R + COff4, CMin4, CMax4);
this.V1L = Vector4Utilities.FastClamp(this.V1L + COff4, CMin4, CMax4);
this.V1R = Vector4Utilities.FastClamp(this.V1R + COff4, CMin4, CMax4);
this.V2L = Vector4Utilities.FastClamp(this.V2L + COff4, CMin4, CMax4);
this.V2R = Vector4Utilities.FastClamp(this.V2R + COff4, CMin4, CMax4);
this.V3L = Vector4Utilities.FastClamp(this.V3L + COff4, CMin4, CMax4);
this.V3R = Vector4Utilities.FastClamp(this.V3R + COff4, CMin4, CMax4);
this.V4L = Vector4Utilities.FastClamp(this.V4L + COff4, CMin4, CMax4);
this.V4R = Vector4Utilities.FastClamp(this.V4R + COff4, CMin4, CMax4);
this.V5L = Vector4Utilities.FastClamp(this.V5L + COff4, CMin4, CMax4);
this.V5R = Vector4Utilities.FastClamp(this.V5R + COff4, CMin4, CMax4);
this.V6L = Vector4Utilities.FastClamp(this.V6L + COff4, CMin4, CMax4);
this.V6R = Vector4Utilities.FastClamp(this.V6R + COff4, CMin4, CMax4);
this.V7L = Vector4Utilities.FastClamp(this.V7L + COff4, CMin4, CMax4);
this.V7R = Vector4Utilities.FastClamp(this.V7R + COff4, CMin4, CMax4);
}