Spanify blittable equality checks

src/ImageSharp/MetaData/Profiles/ICC/Curves/IccOneDimensionalCurve.cs

@@ -51,7 +51,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
                 return true;
             }
 
-            return this.BreakPoints.SequenceEqual(other.BreakPoints)
+            return this.BreakPoints.AsSpan().SequenceEqual(other.BreakPoints)
                 && this.Segments.SequenceEqual(other.Segments);
         }
     }

src/ImageSharp/MetaData/Profiles/ICC/Curves/IccResponseCurve.cs

@@ -60,7 +60,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
             }
 
             return this.CurveType == other.CurveType
-                && this.XyzValues.SequenceEqual(other.XyzValues)
+                && this.XyzValues.AsSpan().SequenceEqual(other.XyzValues)
                 && this.EqualsResponseArray(other);
         }
 

src/ImageSharp/MetaData/Profiles/ICC/Curves/IccSampledCurveElement.cs

@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
-using System.Linq;
 
 namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
 {
@@ -34,7 +33,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
         {
             if (base.Equals(other) && other is IccSampledCurveElement segment)
             {
-                return this.CurveEntries.SequenceEqual(segment.CurveEntries);
+                return this.CurveEntries.AsSpan().SequenceEqual(segment.CurveEntries);
             }
 
             return false;

src/ImageSharp/MetaData/Profiles/ICC/MultiProcessElements/IccMatrixProcessElement.cs

@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
-using System.Linq;
 
 using SixLabors.ImageSharp.Primitives;
 
@@ -47,7 +46,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
             if (base.Equals(other) && other is IccMatrixProcessElement element)
             {
                 return this.EqualsMatrix(element)
-                    && this.MatrixOx1.SequenceEqual(element.MatrixOx1);
+                    && this.MatrixOx1.AsSpan().SequenceEqual(element.MatrixOx1);
             }
 
             return false;

src/ImageSharp/MetaData/Profiles/ICC/TagDataEntries/IccColorantOrderTagDataEntry.cs

@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
-using System.Linq;
 
 namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
 {
@@ -59,7 +58,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
                 return true;
             }
 
-            return base.Equals(other) && this.ColorantNumber.SequenceEqual(other.ColorantNumber);
+            return base.Equals(other) && this.ColorantNumber.AsSpan().SequenceEqual(other.ColorantNumber);
         }
 
         /// <inheritdoc/>

src/ImageSharp/MetaData/Profiles/ICC/TagDataEntries/IccCurveTagDataEntry.cs

@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
-using System.Linq;
 
 namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
 {
@@ -107,7 +106,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
                 return true;
             }
 
-            return base.Equals(other) && this.CurveData.SequenceEqual(other.CurveData);
+            return base.Equals(other) && this.CurveData.AsSpan().SequenceEqual(other.CurveData);
         }
 
         /// <inheritdoc/>

src/ImageSharp/MetaData/Profiles/ICC/TagDataEntries/IccDataTagDataEntry.cs

@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
-using System.Linq;
 using System.Text;
 
 namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
@@ -83,7 +82,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
                 return true;
             }
 
-            return base.Equals(other) && this.Data.SequenceEqual(other.Data) && this.IsAscii == other.IsAscii;
+            return base.Equals(other) && this.Data.AsSpan().SequenceEqual(other.Data) && this.IsAscii == other.IsAscii;
         }
 
         /// <inheritdoc/>

src/ImageSharp/MetaData/Profiles/ICC/TagDataEntries/IccFix16ArrayTagDataEntry.cs

@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
-using System.Linq;
 
 namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
 {
@@ -56,7 +55,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
                 return true;
             }
 
-            return base.Equals(other) && this.Data.SequenceEqual(other.Data);
+            return base.Equals(other) && this.Data.AsSpan().SequenceEqual(other.Data);
         }
 
         /// <inheritdoc/>

src/ImageSharp/MetaData/Profiles/ICC/TagDataEntries/IccProfileSequenceIdentifierTagDataEntry.cs

@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
-using System.Linq;
 
 namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
 {
@@ -57,7 +56,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
                 return true;
             }
 
-            return base.Equals(other) && this.Data.SequenceEqual(other.Data);
+            return base.Equals(other) && this.Data.AsSpan().SequenceEqual(other.Data);
         }
 
         /// <inheritdoc />

src/ImageSharp/MetaData/Profiles/ICC/TagDataEntries/IccScreeningTagDataEntry.cs

@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
-using System.Linq;
 
 namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
 {
@@ -68,7 +67,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
 
             return base.Equals(other)
                 && this.Flags == other.Flags
-                && this.Channels.SequenceEqual(other.Channels);
+                && this.Channels.AsSpan().SequenceEqual(other.Channels);
         }
 
         /// <inheritdoc />

src/ImageSharp/MetaData/Profiles/ICC/TagDataEntries/IccUFix16ArrayTagDataEntry.cs

@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
-using System.Linq;
 
 namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
 {
@@ -56,7 +55,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
                 return true;
             }
 
-            return base.Equals(other) && this.Data.SequenceEqual(other.Data);
+            return base.Equals(other) && this.Data.AsSpan().SequenceEqual(other.Data);
         }
 
         /// <inheritdoc/>

src/ImageSharp/MetaData/Profiles/ICC/TagDataEntries/IccUInt16ArrayTagDataEntry.cs

@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
-using System.Linq;
 
 namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
 {
@@ -56,7 +55,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
                 return true;
             }
 
-            return base.Equals(other) && this.Data.SequenceEqual(other.Data);
+            return base.Equals(other) && this.Data.AsSpan().SequenceEqual(other.Data);
         }
 
         /// <inheritdoc/>

src/ImageSharp/MetaData/Profiles/ICC/TagDataEntries/IccUInt32ArrayTagDataEntry.cs

@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
-using System.Linq;
 
 namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
 {
@@ -56,7 +55,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
                 return true;
             }
 
-            return base.Equals(other) && this.Data.SequenceEqual(other.Data);
+            return base.Equals(other) && this.Data.AsSpan().SequenceEqual(other.Data);
         }
 
         /// <inheritdoc/>

src/ImageSharp/MetaData/Profiles/ICC/TagDataEntries/IccUInt64ArrayTagDataEntry.cs

@@ -56,7 +56,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
                 return true;
             }
 
-            return base.Equals(other) && this.Data.SequenceEqual(other.Data);
+            return base.Equals(other) && this.Data.AsSpan().SequenceEqual(other.Data);
         }
 
         /// <inheritdoc/>

src/ImageSharp/MetaData/Profiles/ICC/TagDataEntries/IccUInt8ArrayTagDataEntry.cs

@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
-using System.Linq;
 
 namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
 {
@@ -56,7 +55,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
                 return true;
             }
 
-            return base.Equals(other) && this.Data.SequenceEqual(other.Data);
+            return base.Equals(other) && this.Data.AsSpan().SequenceEqual(other.Data);
         }
 
         /// <inheritdoc/>

src/ImageSharp/MetaData/Profiles/ICC/TagDataEntries/IccUcrBgTagDataEntry.cs

@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
-using System.Linq;
 
 namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
 {
@@ -77,8 +76,8 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
             }
 
             return base.Equals(other)
-                && this.UcrCurve.SequenceEqual(other.UcrCurve)
-                && this.BgCurve.SequenceEqual(other.BgCurve)
+                && this.UcrCurve.AsSpan().SequenceEqual(other.UcrCurve)
+                && this.BgCurve.AsSpan().SequenceEqual(other.BgCurve)
                 && string.Equals(this.Description, other.Description);
         }
 

src/ImageSharp/MetaData/Profiles/ICC/TagDataEntries/IccUnknownTagDataEntry.cs

@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
-using System.Linq;
 
 namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
 {
@@ -56,7 +55,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
                 return true;
             }
 
-            return base.Equals(other) && this.Data.SequenceEqual(other.Data);
+            return base.Equals(other) && this.Data.AsSpan().SequenceEqual(other.Data);
         }
 
         /// <inheritdoc/>

src/ImageSharp/MetaData/Profiles/ICC/TagDataEntries/IccXyzTagDataEntry.cs

@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
-using System.Linq;
 using System.Numerics;
 
 namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
@@ -15,7 +14,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
         /// <summary>
         /// Initializes a new instance of the <see cref="IccXyzTagDataEntry"/> class.
         /// </summary>
-        /// <param name="data">The XYZ numbers</param>
+        /// <param name="data">The XYZ numbers.</param>
         public IccXyzTagDataEntry(Vector3[] data)
             : this(data, IccProfileTag.Unknown)
         {
@@ -34,7 +33,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
         }
 
         /// <summary>
-        /// Gets the XYZ numbers
+        /// Gets the XYZ numbers.
         /// </summary>
         public Vector3[] Data { get; }
 
@@ -43,7 +42,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
         {
             if (base.Equals(other) && other is IccXyzTagDataEntry entry)
             {
-                return this.Data.SequenceEqual(entry.Data);
+                return this.Data.AsSpan().SequenceEqual(entry.Data);
             }
 
             return false;

src/ImageSharp/MetaData/Profiles/ICC/Various/IccClut.cs

@@ -130,7 +130,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
                 && this.DataType == other.DataType
                 && this.InputChannelCount == other.InputChannelCount
                 && this.OutputChannelCount == other.OutputChannelCount
-                && this.GridPointCount.SequenceEqual(other.GridPointCount);
+                && this.GridPointCount.AsSpan().SequenceEqual(other.GridPointCount);
         }
 
         /// <inheritdoc/>
@@ -162,7 +162,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
 
             for (int i = 0; i < this.Values.Length; i++)
             {
-                if (!this.Values[i].SequenceEqual(other.Values[i]))
+                if (!this.Values[i].AsSpan().SequenceEqual(other.Values[i]))
                 {
                     return false;
                 }

src/ImageSharp/MetaData/Profiles/ICC/Various/IccLut.cs

@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
-using System.Linq;
 
 namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
 {
@@ -68,7 +67,7 @@ namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
                 return true;
             }
 
-            return this.Values.SequenceEqual(other.Values);
+            return this.Values.AsSpan().SequenceEqual(other.Values);
         }
     }
 }

src/ImageSharp/MetaData/Profiles/ICC/Various/IccScreeningChannel.cs

@@ -2,12 +2,14 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
+using System.Runtime.InteropServices;
 
 namespace SixLabors.ImageSharp.MetaData.Profiles.Icc
 {
     /// <summary>
     /// A single channel of a <see cref="IccScreeningTagDataEntry"/>
     /// </summary>
+    [StructLayout(LayoutKind.Sequential)]
     internal readonly struct IccScreeningChannel : IEquatable<IccScreeningChannel>
     {
         /// <summary>