refactored ToRgba32() on most pixel types

src/ImageSharp/PixelFormats/Alpha8.cs

@@ -105,7 +105,11 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(0, 0, 0, this.PackedValue);
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest = default;
+            dest.A = this.PackedValue;
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/Argb32.cs

@@ -250,7 +250,13 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.R, this.G, this.B, this.A);
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.R = this.R;
+            dest.G = this.G;
+            dest.B = this.B;
+            dest.A = this.A;
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/Bgr24.cs

@@ -151,7 +151,13 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.R, this.G, this.B, byte.MaxValue);
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.R = this.R;
+            dest.G = this.G;
+            dest.B = this.B;
+            dest.A = byte.MaxValue;
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/Bgr565.cs

@@ -113,7 +113,10 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.ToScaledVector4());
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.PackFromScaledVector4(this.ToScaledVector4());
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/Bgra32.cs

@@ -206,7 +206,13 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.R, this.G, this.B, this.A);
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.R = this.R;
+            dest.G = this.G;
+            dest.B = this.B;
+            dest.A = this.A;
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/Bgra4444.cs

@@ -116,7 +116,10 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.ToScaledVector4());
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.PackFromScaledVector4(this.ToScaledVector4());
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/Bgra5551.cs

@@ -117,7 +117,10 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.ToScaledVector4());
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.PackFromScaledVector4(this.ToScaledVector4());
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/Byte4.cs

@@ -117,7 +117,10 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.ToScaledVector4());
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.PackFromScaledVector4(this.ToScaledVector4());
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/HalfSingle.cs

@@ -106,7 +106,10 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.ToScaledVector4());
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.PackFromScaledVector4(this.ToScaledVector4());
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/HalfVector2.cs

@@ -117,7 +117,10 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.ToScaledVector4());
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.PackFromScaledVector4(this.ToScaledVector4());
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/HalfVector4.cs

@@ -125,7 +125,10 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.ToScaledVector4());
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.PackFromScaledVector4(this.ToScaledVector4());
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/IPixel.cs

@@ -100,8 +100,8 @@ namespace SixLabors.ImageSharp.PixelFormats
         /// <summary>
         /// Expands the packed representation into an <see cref="Rgba32"/>.
         /// </summary>
-        /// <returns>The <see cref="Rgba32"/>.</returns>
+        /// <param name="dest">The reference to the destination <see cref="Rgba32"/> pixel</param>
-        Rgba32 ToRgba32();
+        void ToRgba32(ref Rgba32 dest);
 
         /// <summary>
         /// Packs the pixel from an <see cref="Rgb48"/> value.
@@ -115,4 +115,18 @@ namespace SixLabors.ImageSharp.PixelFormats
         /// <param name="source">The <see cref="Rgba64"/> value.</param>
         void PackFromRgba64(Rgba64 source);
     }
+
+    /// <summary>
+    /// Temporary extension methods for compatibility
+    /// </summary>
+    internal static class PixelExtensions
+    {
+        public static Rgba32 ToRgba32<TPixel>(this TPixel pixel)
+            where TPixel : struct, IPixel<TPixel>
+        {
+            Rgba32 result = default;
+            pixel.ToRgba32(ref result);
+            return result;
+        }
+    }
 }

src/ImageSharp/PixelFormats/NormalizedByte2.cs

@@ -107,7 +107,10 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.ToScaledVector4());
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.PackFromScaledVector4(this.ToScaledVector4());
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/NormalizedByte4.cs

@@ -128,7 +128,10 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.ToScaledVector4());
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.PackFromScaledVector4(this.ToScaledVector4());
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/NormalizedShort2.cs

@@ -123,7 +123,10 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.ToScaledVector4());
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.PackFromScaledVector4(this.ToScaledVector4());
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/NormalizedShort4.cs

@@ -130,7 +130,10 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.ToScaledVector4());
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.PackFromScaledVector4(this.ToScaledVector4());
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/Rg32.cs

@@ -111,7 +111,10 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.ToScaledVector4());
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.PackFromScaledVector4(this.ToScaledVector4());
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/Rgba1010102.cs

@@ -117,7 +117,10 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.ToScaledVector4());
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.PackFromScaledVector4(this.ToScaledVector4());
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/RgbaVector.cs

@@ -152,7 +152,10 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.ToScaledVector4());
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.PackFromScaledVector4(this.ToScaledVector4());
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/Short2.cs

@@ -129,7 +129,10 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.ToScaledVector4());
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.PackFromScaledVector4(this.ToScaledVector4());
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/PixelFormats/Short4.cs

@@ -134,7 +134,10 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgba32 ToRgba32() => new Rgba32(this.ToScaledVector4());
+        public void ToRgba32(ref Rgba32 dest)
+        {
+            dest.PackFromScaledVector4(this.ToScaledVector4());
+        }
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]