diff --git a/src/ImageSharp/Colors/PackedPixel/Rg32.cs b/src/ImageSharp/Colors/PackedPixel/Rg32.cs
new file mode 100644
index 000000000..8ca53a829
--- /dev/null
+++ b/src/ImageSharp/Colors/PackedPixel/Rg32.cs
@@ -0,0 +1,173 @@
+//
+// Copyright (c) James Jackson-South and contributors.
+// Licensed under the Apache License, Version 2.0.
+//
+
+namespace ImageSharp
+{
+ using System;
+ using System.Numerics;
+
+ ///
+ /// Packed pixel type containing two 16-bit unsigned normalized values ranging from 0 to 1.
+ ///
+ public struct Rg32 : IPackedPixel, IEquatable, IPackedVector
+ {
+ ///
+ /// Initializes a new instance of the struct.
+ ///
+ /// The x-component
+ /// The y-component
+ public Rg32(float x, float y)
+ {
+ this.PackedValue = Pack(x, y);
+ }
+
+ ///
+ /// Initializes a new instance of the struct.
+ ///
+ /// The vector containing the component values.
+ public Rg32(Vector2 vector)
+ {
+ this.PackedValue = Pack(vector.X, vector.Y);
+ }
+
+ ///
+ public uint PackedValue { get; set; }
+
+ ///
+ /// Compares two objects for equality.
+ ///
+ ///
+ /// The on the left side of the operand.
+ ///
+ ///
+ /// The on the right side of the operand.
+ ///
+ ///
+ /// True if the parameter is equal to the parameter; otherwise, false.
+ ///
+ public static bool operator ==(Rg32 left, Rg32 right)
+ {
+ return left.PackedValue == right.PackedValue;
+ }
+
+ ///
+ /// Compares two objects for equality.
+ ///
+ ///
+ /// The on the left side of the operand.
+ ///
+ ///
+ /// The on the right side of the operand.
+ ///
+ ///
+ /// True if the parameter is not equal to the parameter; otherwise, false.
+ ///
+ public static bool operator !=(Rg32 left, Rg32 right)
+ {
+ return left.PackedValue != right.PackedValue;
+ }
+
+ ///
+ /// Expands the packed representation into a .
+ /// The vector components are typically expanded in least to greatest significance order.
+ ///
+ /// The .
+ public Vector2 ToVector2()
+ {
+ return new Vector2(
+ (this.PackedValue & 0xFFFF) / 65535F,
+ ((this.PackedValue >> 16) & 0xFFFF) / 65535F);
+ }
+
+ ///
+ public void PackFromVector4(Vector4 vector)
+ {
+ this.PackedValue = Pack(vector.X, vector.Y);
+ }
+
+ ///
+ public Vector4 ToVector4()
+ {
+ return new Vector4(this.ToVector2(), 0F, 1F);
+ }
+
+ ///
+ public void PackFromBytes(byte x, byte y, byte z, byte w)
+ {
+ this.PackFromVector4(new Vector4(x, y, z, w) / 255F);
+ }
+
+ ///
+ public void ToBytes(byte[] bytes, int startIndex, ComponentOrder componentOrder)
+ {
+ Vector4 vector = this.ToVector4() * 255F;
+
+ switch (componentOrder)
+ {
+ case ComponentOrder.ZYX:
+ bytes[startIndex] = (byte)vector.Z;
+ bytes[startIndex + 1] = (byte)vector.Y;
+ bytes[startIndex + 2] = (byte)vector.X;
+ break;
+ case ComponentOrder.ZYXW:
+ bytes[startIndex] = (byte)vector.Z;
+ bytes[startIndex + 1] = (byte)vector.Y;
+ bytes[startIndex + 2] = (byte)vector.X;
+ bytes[startIndex + 3] = (byte)vector.W;
+ break;
+ case ComponentOrder.XYZ:
+ bytes[startIndex] = (byte)vector.X;
+ bytes[startIndex + 1] = (byte)vector.Y;
+ bytes[startIndex + 2] = (byte)vector.Z;
+ break;
+ case ComponentOrder.XYZW:
+ bytes[startIndex] = (byte)vector.X;
+ bytes[startIndex + 1] = (byte)vector.Y;
+ bytes[startIndex + 2] = (byte)vector.Z;
+ bytes[startIndex + 3] = (byte)vector.W;
+ break;
+ default:
+ throw new NotSupportedException();
+ }
+ }
+
+ ///
+ public override bool Equals(object obj)
+ {
+ return (obj is Rg32) && this.Equals((Rg32)obj);
+ }
+
+ ///
+ public bool Equals(Rg32 other)
+ {
+ return this.PackedValue == other.PackedValue;
+ }
+
+ ///
+ public override string ToString()
+ {
+ return this.ToVector2().ToString();
+ }
+
+ ///
+ public override int GetHashCode()
+ {
+ return this.PackedValue.GetHashCode();
+ }
+
+ ///
+ /// Packs the components into a .
+ ///
+ /// The x-component
+ /// The y-component
+ /// The containing the packed values.
+ private static uint Pack(float x, float y)
+ {
+ return (uint)(
+ ((int)Math.Round(x.Clamp(0, 1) * 65535F) & 0xFFFF) |
+ (((int)Math.Round(y.Clamp(0, 1) * 65535F) & 0xFFFF) << 16));
+ }
+ }
+}
diff --git a/tests/ImageSharp.Tests/Colors/PackedPixelTests.cs b/tests/ImageSharp.Tests/Colors/PackedPixelTests.cs
index d25979e1e..75700337f 100644
--- a/tests/ImageSharp.Tests/Colors/PackedPixelTests.cs
+++ b/tests/ImageSharp.Tests/Colors/PackedPixelTests.cs
@@ -564,6 +564,48 @@ namespace ImageSharp.Tests.Colors
Assert.Equal(rgba, new byte[] { 9, 115, 202, 127 });
}
+ [Fact]
+ public void Rg32()
+ {
+ // Test the limits.
+ Assert.Equal((uint)0x0, new Rg32(Vector2.Zero).PackedValue);
+ Assert.Equal(0xFFFFFFFF, new Rg32(Vector2.One).PackedValue);
+
+ // Test ToVector2
+ Assert.True(Equal(Vector2.Zero, new Rg32(Vector2.Zero).ToVector2()));
+ Assert.True(Equal(Vector2.One, new Rg32(Vector2.One).ToVector2()));
+
+ // Test clamping.
+ Assert.True(Equal(Vector2.Zero, new Rg32(Vector2.One * -1234.0f).ToVector2()));
+ Assert.True(Equal(Vector2.One, new Rg32(Vector2.One * 1234.0f).ToVector2()));
+
+ // Test Ordering
+ float x = 0xb6dc;
+ float y = 0xA59f;
+ Assert.Equal(0xa59fb6dc, new Rg32(x / 0xffff, y / 0xffff).PackedValue);
+ x = 0.1f;
+ y = -0.3f;
+ Assert.Equal((uint)6554, new Rg32(x, y).PackedValue);
+
+ // Test ordering
+ byte[] rgb = new byte[3];
+ byte[] rgba = new byte[4];
+ byte[] bgr = new byte[3];
+ byte[] bgra = new byte[4];
+
+ new Rg32(x, y).ToBytes(rgb, 0, ComponentOrder.XYZ);
+ Assert.Equal(rgb, new byte[] { 25, 0, 0 });
+
+ new Rg32(x, y).ToBytes(rgba, 0, ComponentOrder.XYZW);
+ Assert.Equal(rgba, new byte[] { 25, 0, 0, 255 });
+
+ new Rg32(x, y).ToBytes(bgr, 0, ComponentOrder.ZYX);
+ Assert.Equal(bgr, new byte[] { 0, 0, 25 });
+
+ new Rg32(x, y).ToBytes(bgra, 0, ComponentOrder.ZYXW);
+ Assert.Equal(bgra, new byte[] { 0, 0, 25, 255 });
+ }
+
// Comparison helpers with small tolerance to allow for floating point rounding during computations.
public static bool Equal(float a, float b)
{
diff --git a/tests/ImageSharp.Tests/Formats/GeneralFormatTests.cs b/tests/ImageSharp.Tests/Formats/GeneralFormatTests.cs
index f094253b8..b2191d909 100644
--- a/tests/ImageSharp.Tests/Formats/GeneralFormatTests.cs
+++ b/tests/ImageSharp.Tests/Formats/GeneralFormatTests.cs
@@ -61,6 +61,7 @@ namespace ImageSharp.Tests
// Image image = file.CreateImage().To();
// Image image = file.CreateImage().To();
// Image image = file.CreateImage().To();
+ // Image image = file.CreateImage().To();
// TODO: Conversion between types who's vector ranges are different are not possible without scaling function, Make static version of known ones.
// Image image = file.CreateImage().To(v => (2F * v) - Vector4.One);