Fix build errors

.editorconfig

@@ -422,6 +422,8 @@ dotnet_naming_rule.parameters_rule.symbols              = parameters_group
 dotnet_naming_rule.parameters_rule.style                = camel_case_style
 dotnet_naming_rule.parameters_rule.severity             = warning
 
+
+dotnet_diagnostics.CA1857.severity = none
 ##########################################
 # License
 ##########################################

src/ImageSharp/Advanced/ParallelRowIterator.Wrappers.cs

@@ -51,7 +51,7 @@ public static partial class ParallelRowIterator
             for (int y = yMin; y < yMax; y++)
             {
                 // Skip the safety copy when invoking a potentially impure method on a readonly field
-                Unsafe.AsRef(this.action).Invoke(y);
+                Unsafe.AsRef(in this.action).Invoke(y);
             }
         }
     }
@@ -102,7 +102,7 @@ public static partial class ParallelRowIterator
 
             for (int y = yMin; y < yMax; y++)
             {
-                Unsafe.AsRef(this.action).Invoke(y, span);
+                Unsafe.AsRef(in this.action).Invoke(y, span);
             }
         }
     }

src/ImageSharp/Advanced/ParallelRowIterator.cs

@@ -58,7 +58,7 @@ public static partial class ParallelRowIterator
         {
             for (int y = top; y < bottom; y++)
             {
-                Unsafe.AsRef(operation).Invoke(y);
+                Unsafe.AsRef(in operation).Invoke(y);
             }
 
             return;
@@ -118,7 +118,7 @@ public static partial class ParallelRowIterator
         int maxSteps = DivideCeil(width * (long)height, parallelSettings.MinimumPixelsProcessedPerTask);
         int numOfSteps = Math.Min(parallelSettings.MaxDegreeOfParallelism, maxSteps);
         MemoryAllocator allocator = parallelSettings.MemoryAllocator;
-        int bufferLength = Unsafe.AsRef(operation).GetRequiredBufferLength(rectangle);
+        int bufferLength = Unsafe.AsRef(in operation).GetRequiredBufferLength(rectangle);
 
         // Avoid TPL overhead in this trivial case:
         if (numOfSteps == 1)
@@ -128,7 +128,7 @@ public static partial class ParallelRowIterator
 
             for (int y = top; y < bottom; y++)
             {
-                Unsafe.AsRef(operation).Invoke(y, span);
+                Unsafe.AsRef(in operation).Invoke(y, span);
             }
 
             return;
@@ -245,7 +245,7 @@ public static partial class ParallelRowIterator
         int maxSteps = DivideCeil(width * (long)height, parallelSettings.MinimumPixelsProcessedPerTask);
         int numOfSteps = Math.Min(parallelSettings.MaxDegreeOfParallelism, maxSteps);
         MemoryAllocator allocator = parallelSettings.MemoryAllocator;
-        int bufferLength = Unsafe.AsRef(operation).GetRequiredBufferLength(rectangle);
+        int bufferLength = Unsafe.AsRef(in operation).GetRequiredBufferLength(rectangle);
 
         // Avoid TPL overhead in this trivial case:
         if (numOfSteps == 1)
@@ -253,7 +253,7 @@ public static partial class ParallelRowIterator
             var rows = new RowInterval(top, bottom);
             using IMemoryOwner<TBuffer> buffer = allocator.Allocate<TBuffer>(bufferLength);
 
-            Unsafe.AsRef(operation).Invoke(in rows, buffer.Memory.Span);
+            Unsafe.AsRef(in operation).Invoke(in rows, buffer.Memory.Span);
 
             return;
         }

src/ImageSharp/Common/Helpers/DebugGuard.cs

@@ -33,10 +33,12 @@ internal static partial class DebugGuard
     [Conditional("DEBUG")]
     public static void NotDisposed(bool isDisposed, string objectName)
     {
+#pragma warning disable CA1513
         if (isDisposed)
         {
             throw new ObjectDisposedException(objectName);
         }
+#pragma warning restore CA1513
     }
 
     /// <summary>

src/ImageSharp/Configuration.cs

@@ -87,10 +87,7 @@ public sealed class Configuration
         get => this.streamProcessingBufferSize;
         set
         {
-            if (value <= 0)
+            ArgumentOutOfRangeException.ThrowIfNegativeOrZero(value);
-            {
-                throw new ArgumentOutOfRangeException(nameof(this.StreamProcessingBufferSize));
-            }
 
             this.streamProcessingBufferSize = value;
         }

src/ImageSharp/Formats/Jpeg/JpegEncoderCore.cs

@@ -176,10 +176,7 @@ internal sealed unsafe partial class JpegEncoderCore : IImageEncoderInternals
     /// <exception cref="ArgumentNullException"><paramref name="tableConfigs"/> is <see langword="null"/>.</exception>
     private void WriteDefineHuffmanTables(JpegHuffmanTableConfig[] tableConfigs, HuffmanScanEncoder scanEncoder, Span<byte> buffer)
     {
-        if (tableConfigs is null)
+        ArgumentNullException.ThrowIfNull(tableConfigs);
-        {
-            throw new ArgumentNullException(nameof(tableConfigs));
-        }
 
         int markerlen = 2;
 

src/ImageSharp/Memory/Allocators/Internals/SharedArrayPoolBuffer{T}.cs

@@ -59,10 +59,12 @@ internal class SharedArrayPoolBuffer<T> : ManagedBufferBase<T>, IRefCounted
     [MemberNotNull(nameof(Array))]
     private void CheckDisposed()
     {
+#pragma warning disable CA1513
         if (this.Array == null)
         {
             throw new ObjectDisposedException("SharedArrayPoolBuffer");
         }
+#pragma warning restore CA1513
     }
 
     private sealed class LifetimeGuard : RefCountedMemoryLifetimeGuard

src/ImageSharp/PixelFormats/PixelImplementations/Abgr32.cs

@@ -129,7 +129,7 @@ public partial struct Abgr32 : IPixel<Abgr32>, IPackedVector<uint>
     public uint Abgr
     {
         [MethodImpl(InliningOptions.ShortMethod)]
-        readonly get => Unsafe.As<Abgr32, uint>(ref Unsafe.AsRef(this));
+        readonly get => Unsafe.As<Abgr32, uint>(ref Unsafe.AsRef(in this));
 
         [MethodImpl(InliningOptions.ShortMethod)]
         set => Unsafe.As<Abgr32, uint>(ref this) = value;

src/ImageSharp/PixelFormats/PixelImplementations/Argb32.cs

@@ -129,7 +129,7 @@ public partial struct Argb32 : IPixel<Argb32>, IPackedVector<uint>
     public uint Argb
     {
         [MethodImpl(InliningOptions.ShortMethod)]
-        readonly get => Unsafe.As<Argb32, uint>(ref Unsafe.AsRef(this));
+        readonly get => Unsafe.As<Argb32, uint>(ref Unsafe.AsRef(in this));
 
         [MethodImpl(InliningOptions.ShortMethod)]
         set => Unsafe.As<Argb32, uint>(ref this) = value;

src/ImageSharp/PixelFormats/PixelImplementations/Bgra32.cs

@@ -85,7 +85,7 @@ public partial struct Bgra32 : IPixel<Bgra32>, IPackedVector<uint>
     public uint Bgra
     {
         [MethodImpl(InliningOptions.ShortMethod)]
-        readonly get => Unsafe.As<Bgra32, uint>(ref Unsafe.AsRef(this));
+        readonly get => Unsafe.As<Bgra32, uint>(ref Unsafe.AsRef(in this));
 
         [MethodImpl(InliningOptions.ShortMethod)]
         set => Unsafe.As<Bgra32, uint>(ref this) = value;

src/ImageSharp/PixelFormats/PixelImplementations/La16.cs

@@ -45,7 +45,7 @@ public partial struct La16 : IPixel<La16>, IPackedVector<ushort>
     /// <inheritdoc/>
     public ushort PackedValue
     {
-        readonly get => Unsafe.As<La16, ushort>(ref Unsafe.AsRef(this));
+        readonly get => Unsafe.As<La16, ushort>(ref Unsafe.AsRef(in this));
         set => Unsafe.As<La16, ushort>(ref this) = value;
     }
 

src/ImageSharp/PixelFormats/PixelImplementations/La32.cs

@@ -45,7 +45,7 @@ public partial struct La32 : IPixel<La32>, IPackedVector<uint>
     public uint PackedValue
     {
         [MethodImpl(InliningOptions.ShortMethod)]
-        readonly get => Unsafe.As<La32, uint>(ref Unsafe.AsRef(this));
+        readonly get => Unsafe.As<La32, uint>(ref Unsafe.AsRef(in this));
 
         [MethodImpl(InliningOptions.ShortMethod)]
         set => Unsafe.As<La32, uint>(ref this) = value;

src/ImageSharp/PixelFormats/PixelImplementations/Rgba32.cs

@@ -124,7 +124,7 @@ public partial struct Rgba32 : IPixel<Rgba32>, IPackedVector<uint>
     public uint Rgba
     {
         [MethodImpl(InliningOptions.ShortMethod)]
-        readonly get => Unsafe.As<Rgba32, uint>(ref Unsafe.AsRef(this));
+        readonly get => Unsafe.As<Rgba32, uint>(ref Unsafe.AsRef(in this));
 
         [MethodImpl(InliningOptions.ShortMethod)]
         set => Unsafe.As<Rgba32, uint>(ref this) = value;

src/ImageSharp/PixelFormats/PixelImplementations/Rgba64.cs

@@ -152,7 +152,7 @@ public partial struct Rgba64 : IPixel<Rgba64>, IPackedVector<ulong>
     public Rgb48 Rgb
     {
         [MethodImpl(InliningOptions.ShortMethod)]
-        readonly get => Unsafe.As<Rgba64, Rgb48>(ref Unsafe.AsRef(this));
+        readonly get => Unsafe.As<Rgba64, Rgb48>(ref Unsafe.AsRef(in this));
 
         [MethodImpl(InliningOptions.ShortMethod)]
         set => Unsafe.As<Rgba64, Rgb48>(ref this) = value;
@@ -162,7 +162,7 @@ public partial struct Rgba64 : IPixel<Rgba64>, IPackedVector<ulong>
     public ulong PackedValue
     {
         [MethodImpl(InliningOptions.ShortMethod)]
-        readonly get => Unsafe.As<Rgba64, ulong>(ref Unsafe.AsRef(this));
+        readonly get => Unsafe.As<Rgba64, ulong>(ref Unsafe.AsRef(in this));
 
         [MethodImpl(InliningOptions.ShortMethod)]
         set => Unsafe.As<Rgba64, ulong>(ref this) = value;

src/ImageSharp/Processing/Processors/Dithering/ErrorDither.cs

@@ -143,7 +143,7 @@ public readonly partial struct ErrorDither : IDither, IEquatable<ErrorDither>, I
             for (int x = bounds.Left; x < bounds.Right; x++)
             {
                 ref TPixel sourcePixel = ref Unsafe.Add(ref sourceRowRef, (uint)x);
-                TPixel transformed = Unsafe.AsRef(processor).GetPaletteColor(sourcePixel);
+                TPixel transformed = Unsafe.AsRef(in processor).GetPaletteColor(sourcePixel);
                 this.Dither(source, bounds, sourcePixel, transformed, x, y, scale);
                 sourcePixel = transformed;
             }

src/ImageSharp/Processing/Processors/Effects/PixelRowDelegateProcessor{TPixel,TDelegate}.cs

@@ -96,7 +96,7 @@ internal sealed class PixelRowDelegateProcessor<TPixel, TDelegate> : ImageProces
             PixelOperations<TPixel>.Instance.ToVector4(this.configuration, rowSpan, span, this.modifiers);
 
             // Run the user defined pixel shader to the current row of pixels
-            Unsafe.AsRef(this.rowProcessor).Invoke(span, new Point(this.startX, y));
+            Unsafe.AsRef(in this.rowProcessor).Invoke(span, new Point(this.startX, y));
 
             PixelOperations<TPixel>.Instance.FromVector4Destructive(this.configuration, span, rowSpan, this.modifiers);
         }

src/ImageSharp/Processing/Processors/Filters/FilterProcessor{TPixel}.cs

@@ -78,7 +78,7 @@ internal class FilterProcessor<TPixel> : ImageProcessor<TPixel>
             Span<TPixel> rowSpan = this.source.DangerousGetRowSpan(y).Slice(this.startX, span.Length);
             PixelOperations<TPixel>.Instance.ToVector4(this.configuration, rowSpan, span, PixelConversionModifiers.Scale);
 
-            ColorNumerics.Transform(span, ref Unsafe.AsRef(this.matrix));
+            ColorNumerics.Transform(span, ref Unsafe.AsRef(in this.matrix));
 
             PixelOperations<TPixel>.Instance.FromVector4Destructive(this.configuration, span, rowSpan, PixelConversionModifiers.Scale);
         }

src/ImageSharp/Processing/Processors/Quantization/OctreeQuantizer{TPixel}.cs

@@ -128,7 +128,7 @@ public struct OctreeQuantizer<TPixel> : IQuantizer<TPixel>
     /// <inheritdoc/>
     [MethodImpl(InliningOptions.ShortMethod)]
     public readonly IndexedImageFrame<TPixel> QuantizeFrame(ImageFrame<TPixel> source, Rectangle bounds)
-        => QuantizerUtilities.QuantizeFrame(ref Unsafe.AsRef(this), source, bounds);
+        => QuantizerUtilities.QuantizeFrame(ref Unsafe.AsRef(in this), source, bounds);
 
     /// <inheritdoc/>
     [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/Processing/Processors/Quantization/PaletteQuantizer{TPixel}.cs

@@ -56,7 +56,7 @@ internal readonly struct PaletteQuantizer<TPixel> : IQuantizer<TPixel>
     /// <inheritdoc/>
     [MethodImpl(InliningOptions.ShortMethod)]
     public readonly IndexedImageFrame<TPixel> QuantizeFrame(ImageFrame<TPixel> source, Rectangle bounds)
-        => QuantizerUtilities.QuantizeFrame(ref Unsafe.AsRef(this), source, bounds);
+        => QuantizerUtilities.QuantizeFrame(ref Unsafe.AsRef(in this), source, bounds);
 
     /// <inheritdoc/>
     [MethodImpl(InliningOptions.ShortMethod)]

src/ImageSharp/Processing/Processors/Quantization/QuantizerUtilities.cs

@@ -161,7 +161,7 @@ public static class QuantizerUtilities
 
                 for (int x = bounds.Left; x < bounds.Right; x++)
                 {
-                    destinationRow[x - offsetX] = Unsafe.AsRef(quantizer).GetQuantizedColor(sourceRow[x], out TPixel _);
+                    destinationRow[x - offsetX] = Unsafe.AsRef(in quantizer).GetQuantizedColor(sourceRow[x], out TPixel _);
                 }
             }
 

src/ImageSharp/Processing/Processors/Quantization/WuQuantizer{TPixel}.cs

@@ -167,7 +167,7 @@ internal struct WuQuantizer<TPixel> : IQuantizer<TPixel>
     /// <inheritdoc/>
     [MethodImpl(InliningOptions.ShortMethod)]
     public readonly IndexedImageFrame<TPixel> QuantizeFrame(ImageFrame<TPixel> source, Rectangle bounds)
-        => QuantizerUtilities.QuantizeFrame(ref Unsafe.AsRef(this), source, bounds);
+        => QuantizerUtilities.QuantizeFrame(ref Unsafe.AsRef(in this), source, bounds);
 
     /// <inheritdoc/>
     public readonly byte GetQuantizedColor(TPixel color, out TPixel match)

tests/ImageSharp.Benchmarks/ImageSharp.Benchmarks.csproj

@@ -10,6 +10,7 @@
     <!--Used to hide test project from dotnet test-->
     <IsTestProject>false</IsTestProject>
     <Configurations>Debug;Release</Configurations>
+    <LangVersion>12.0</LangVersion>
     <!-- Uncomment this to run benchmarks depending on Colorful or Pfim (colorspaces and TGA): -->
     <!--<SignAssembly>false</SignAssembly>-->
   </PropertyGroup>