fixed broken rounding

src/ImageSharp/PixelFormats/HalfSingle.cs

@@ -114,9 +114,9 @@ namespace ImageSharp.PixelFormats
         public void ToRgb24(ref Rgb24 dest)
         {
             Vector4 vector = this.ToScaledVector4();
-            dest.R = (byte)MathF.Round(vector.X);
+            dest.R = (byte)vector.X;
-            dest.G = (byte)MathF.Round(vector.Y);
+            dest.G = (byte)vector.Y;
-            dest.B = (byte)MathF.Round(vector.Z);
+            dest.B = (byte)vector.Z;
         }
 
         /// <inheritdoc />
@@ -124,10 +124,10 @@ namespace ImageSharp.PixelFormats
         public void ToRgba32(ref Rgba32 dest)
         {
             Vector4 vector = this.ToScaledVector4();
-            dest.R = (byte)MathF.Round(vector.X);
+            dest.R = (byte)vector.X;
-            dest.G = (byte)MathF.Round(vector.Y);
+            dest.G = (byte)vector.Y;
-            dest.B = (byte)MathF.Round(vector.Z);
+            dest.B = (byte)vector.Z;
-            dest.A = (byte)MathF.Round(vector.W);
+            dest.A = (byte)vector.W;
         }
 
         /// <inheritdoc />
@@ -135,9 +135,9 @@ namespace ImageSharp.PixelFormats
         public void ToBgr24(ref Bgr24 dest)
         {
             Vector4 vector = this.ToScaledVector4();
-            dest.R = (byte)MathF.Round(vector.X);
+            dest.R = (byte)vector.X;
-            dest.G = (byte)MathF.Round(vector.Y);
+            dest.G = (byte)vector.Y;
-            dest.B = (byte)MathF.Round(vector.Z);
+            dest.B = (byte)vector.Z;
         }
 
         /// <inheritdoc />
@@ -145,10 +145,10 @@ namespace ImageSharp.PixelFormats
         public void ToBgra32(ref Bgra32 dest)
         {
             Vector4 vector = this.ToScaledVector4();
-            dest.R = (byte)MathF.Round(vector.X);
+            dest.R = (byte)vector.X;
-            dest.G = (byte)MathF.Round(vector.Y);
+            dest.G = (byte)vector.Y;
-            dest.B = (byte)MathF.Round(vector.Z);
+            dest.B = (byte)vector.Z;
-            dest.A = (byte)MathF.Round(vector.W);
+            dest.A = (byte)vector.W;
         }
 
         /// <inheritdoc />

src/ImageSharp/PixelFormats/HalfVector2.cs

@@ -128,8 +128,8 @@ namespace ImageSharp.PixelFormats
         public void ToRgb24(ref Rgb24 dest)
         {
             Vector4 vector = this.ToScaledVector4();
-            dest.R = (byte)MathF.Round(vector.X);
+            dest.R = (byte)vector.X;
-            dest.G = (byte)MathF.Round(vector.Y);
+            dest.G = (byte)vector.Y;
             dest.B = 0;
         }
 
@@ -138,8 +138,8 @@ namespace ImageSharp.PixelFormats
         public void ToRgba32(ref Rgba32 dest)
         {
             Vector4 vector = this.ToScaledVector4();
-            dest.R = (byte)MathF.Round(vector.X);
+            dest.R = (byte)vector.X;
-            dest.G = (byte)MathF.Round(vector.Y);
+            dest.G = (byte)vector.Y;
             dest.B = 0;
             dest.A = 255;
         }
@@ -149,8 +149,8 @@ namespace ImageSharp.PixelFormats
         public void ToBgr24(ref Bgr24 dest)
         {
             Vector4 vector = this.ToScaledVector4();
-            dest.R = (byte)MathF.Round(vector.X);
+            dest.R = (byte)vector.X;
-            dest.G = (byte)MathF.Round(vector.Y);
+            dest.G = (byte)vector.Y;
             dest.B = 0;
         }
 
@@ -159,8 +159,8 @@ namespace ImageSharp.PixelFormats
         public void ToBgra32(ref Bgra32 dest)
         {
             Vector4 vector = this.ToScaledVector4();
-            dest.R = (byte)MathF.Round(vector.X);
+            dest.R = (byte)vector.X;
-            dest.G = (byte)MathF.Round(vector.Y);
+            dest.G = (byte)vector.Y;
             dest.B = 0;
             dest.A = 255;
         }