Merge branch 'af/refactor-pixel-api' into af/extend-bulk-conversion

src/ImageSharp/Common/Helpers/Guard.cs

@@ -21,7 +21,6 @@ namespace SixLabors.ImageSharp
         /// <param name="parameterName">The name of the parameter that is to be checked.</param>
         /// <exception cref="ArgumentNullException"><paramref name="value"/> is null</exception>
         [MethodImpl(InliningOptions.ShortMethod)]
-        [DebuggerStepThrough]
         public static void NotNull<T>(T value, string parameterName)
             where T : class
         {
@@ -39,7 +38,6 @@ namespace SixLabors.ImageSharp
         /// <exception cref="ArgumentNullException"><paramref name="value"/> is null.</exception>
         /// <exception cref="ArgumentException"><paramref name="value"/> is empty or contains only blanks.</exception>
         [MethodImpl(InliningOptions.ShortMethod)]
-        [DebuggerStepThrough]
         public static void NotNullOrWhiteSpace(string value, string parameterName)
         {
             if (value is null)
@@ -62,7 +60,6 @@ namespace SixLabors.ImageSharp
         /// <exception cref="ArgumentNullException"><paramref name="value"/> is null.</exception>
         /// <exception cref="ArgumentException"><paramref name="value"/> is empty.</exception>
         [MethodImpl(InliningOptions.ShortMethod)]
-        [DebuggerStepThrough]
         public static void NotNullOrEmpty<T>(ICollection<T> value, string parameterName)
         {
             if (value is null)
@@ -87,7 +84,6 @@ namespace SixLabors.ImageSharp
         /// <paramref name="value"/> is greater than the maximum value.
         /// </exception>
         [MethodImpl(InliningOptions.ShortMethod)]
-        [DebuggerStepThrough]
         public static void MustBeLessThan<TValue>(TValue value, TValue max, string parameterName)
                     where TValue : IComparable<TValue>
         {
@@ -109,7 +105,6 @@ namespace SixLabors.ImageSharp
         /// <paramref name="value"/> is greater than the maximum value.
         /// </exception>
         [MethodImpl(InliningOptions.ShortMethod)]
-        [DebuggerStepThrough]
         public static void MustBeLessThanOrEqualTo<TValue>(TValue value, TValue max, string parameterName)
                     where TValue : IComparable<TValue>
         {
@@ -131,7 +126,6 @@ namespace SixLabors.ImageSharp
         /// <paramref name="value"/> is less than the minimum value.
         /// </exception>
         [MethodImpl(InliningOptions.ShortMethod)]
-        [DebuggerStepThrough]
         public static void MustBeGreaterThan<TValue>(TValue value, TValue min, string parameterName)
             where TValue : IComparable<TValue>
         {
@@ -155,7 +149,6 @@ namespace SixLabors.ImageSharp
         /// <paramref name="value"/> is less than the minimum value.
         /// </exception>
         [MethodImpl(InliningOptions.ShortMethod)]
-        [DebuggerStepThrough]
         public static void MustBeGreaterThanOrEqualTo<TValue>(TValue value, TValue min, string parameterName)
             where TValue : IComparable<TValue>
         {
@@ -178,7 +171,6 @@ namespace SixLabors.ImageSharp
         /// <paramref name="value"/> is less than the minimum value of greater than the maximum value.
         /// </exception>
         [MethodImpl(InliningOptions.ShortMethod)]
-        [DebuggerStepThrough]
         public static void MustBeBetweenOrEqualTo<TValue>(TValue value, TValue min, TValue max, string parameterName)
             where TValue : IComparable<TValue>
         {
@@ -199,7 +191,6 @@ namespace SixLabors.ImageSharp
         /// <paramref name="target"/> is false
         /// </exception>
         [MethodImpl(InliningOptions.ShortMethod)]
-        [DebuggerStepThrough]
         public static void IsTrue(bool target, string parameterName, string message)
         {
             if (!target)
@@ -219,7 +210,6 @@ namespace SixLabors.ImageSharp
         /// <paramref name="target"/> is true
         /// </exception>
         [MethodImpl(InliningOptions.ShortMethod)]
-        [DebuggerStepThrough]
         public static void IsFalse(bool target, string parameterName, string message)
         {
             if (target)
@@ -239,7 +229,6 @@ namespace SixLabors.ImageSharp
         /// <paramref name="source"/> has less than <paramref name="minLength"/> items
         /// </exception>
         [MethodImpl(InliningOptions.ShortMethod)]
-        [DebuggerStepThrough]
         public static void MustBeSizedAtLeast<T>(ReadOnlySpan<T> source, int minLength, string parameterName)
         {
             if (source.Length < minLength)
@@ -257,7 +246,6 @@ namespace SixLabors.ImageSharp
         /// <param name="destination">The destination span</param>
         /// <param name="destinationParamName">The name of the argument for 'destination'</param>
         [MethodImpl(InliningOptions.ShortMethod)]
-        [DebuggerStepThrough]
         public static void DestinationShouldNotBeTooShort<TSource, TDest>(
             ReadOnlySpan<TSource> source,
             Span<TDest> destination,
@@ -280,7 +268,6 @@ namespace SixLabors.ImageSharp
         /// <paramref name="source"/> has less than <paramref name="minLength"/> items
         /// </exception>
         [MethodImpl(InliningOptions.ShortMethod)]
-        [DebuggerStepThrough]
         public static void MustBeSizedAtLeast<T>(Span<T> source, int minLength, string parameterName)
         {
             if (source.Length < minLength)

src/ImageSharp/PixelFormats/IPixel.cs

@@ -24,93 +24,93 @@ namespace SixLabors.ImageSharp.PixelFormats
     }
 
     /// <summary>
-    /// An interface that represents a pixel type.
+    /// A base interface for all pixels, defining the mandatory operations to be implemented by a pixel type.
     /// </summary>
     public interface IPixel
     {
         /// <summary>
-        /// Sets the packed representation from a scaled <see cref="Vector4"/>.
+        /// Initializes the pixel instance from a generic ("scaled") <see cref="Vector4"/>.
         /// </summary>
-        /// <param name="vector">The vector to create the packed representation from.</param>
+        /// <param name="vector">The vector to load the pixel from.</param>
         void FromScaledVector4(Vector4 vector);
 
         /// <summary>
-        /// Expands the packed representation into a scaled <see cref="Vector4"/>
-        /// with values clamped between <value>0</value> and <value>1</value>.
+        /// Expands the pixel into a generic ("scaled") <see cref="Vector4"/> representation
+        /// with values scaled and clamped between <value>0</value> and <value>1</value>.
         /// The vector components are typically expanded in least to greatest significance order.
         /// </summary>
         /// <returns>The <see cref="Vector4"/>.</returns>
         Vector4 ToScaledVector4();
 
         /// <summary>
-        /// Sets the packed representation from a <see cref="Vector4"/>.
+        /// Initializes the pixel instance from a <see cref="Vector4"/> which is specific to the current pixel type.
         /// </summary>
-        /// <param name="vector">The vector to create the packed representation from.</param>
+        /// <param name="vector">The vector to load the pixel from.</param>
         void FromVector4(Vector4 vector);
 
         /// <summary>
-        /// Expands the packed representation into a <see cref="Vector4"/>.
+        /// Expands the pixel into a <see cref="Vector4"/> which is specific to the current pixel type.
         /// The vector components are typically expanded in least to greatest significance order.
         /// </summary>
         /// <returns>The <see cref="Vector4"/>.</returns>
         Vector4 ToVector4();
 
         /// <summary>
-        /// Packs the pixel from an <see cref="Argb32"/> value.
+        /// Initializes the pixel instance from an <see cref="Argb32"/> value.
         /// </summary>
         /// <param name="source">The <see cref="Argb32"/> value.</param>
         void FromArgb32(Argb32 source);
 
         /// <summary>
-        /// Packs the pixel from an <see cref="Bgr24"/> value.
+        /// Initializes the pixel instance from an <see cref="Bgr24"/> value.
         /// </summary>
         /// <param name="source">The <see cref="Bgr24"/> value.</param>
         void FromBgr24(Bgr24 source);
 
         /// <summary>
-        /// Packs the pixel from an <see cref="Bgra32"/> value.
+        /// Initializes the pixel instance from an <see cref="Bgra32"/> value.
         /// </summary>
         /// <param name="source">The <see cref="Bgra32"/> value.</param>
         void FromBgra32(Bgra32 source);
 
         /// <summary>
-        /// Packs the Pixel from an <see cref="Gray8"/> value.
+        /// Initializes the pixel instance from an <see cref="Gray8"/> value.
         /// </summary>
         /// <param name="source">The <see cref="Gray8"/> value.</param>
         void FromGray8(Gray8 source);
 
         /// <summary>
-        /// Packs the Pixel from an <see cref="Gray16"/> value.
+        /// Initializes the pixel instance from an <see cref="Gray16"/> value.
         /// </summary>
         /// <param name="source">The <see cref="Gray16"/> value.</param>
         void FromGray16(Gray16 source);
 
         /// <summary>
-        /// Packs the pixel from an <see cref="Rgb24"/> value.
+        /// Initializes the pixel instance from an <see cref="Rgb24"/> value.
         /// </summary>
         /// <param name="source">The <see cref="Rgb24"/> value.</param>
         void FromRgb24(Rgb24 source);
 
         /// <summary>
-        /// Packs the pixel from an <see cref="Rgba32"/> value.
+        /// Initializes the pixel instance from an <see cref="Rgba32"/> value.
         /// </summary>
         /// <param name="source">The <see cref="Rgba32"/> value.</param>
         void FromRgba32(Rgba32 source);
 
         /// <summary>
-        /// Expands the packed representation into an <see cref="Rgba32"/>.
+        /// Convert the pixel instance into <see cref="Rgba32"/> representation.
         /// </summary>
         /// <param name="dest">The reference to the destination <see cref="Rgba32"/> pixel</param>
         void ToRgba32(ref Rgba32 dest);
 
         /// <summary>
-        /// Packs the pixel from an <see cref="Rgb48"/> value.
+        /// Initializes the pixel instance from an <see cref="Rgb48"/> value.
         /// </summary>
         /// <param name="source">The <see cref="Rgb48"/> value.</param>
         void FromRgb48(Rgb48 source);
 
         /// <summary>
-        /// Packs the pixel from an <see cref="Rgba64"/> value.
+        /// Initializes the pixel instance from an <see cref="Rgba64"/> value.
         /// </summary>
         /// <param name="source">The <see cref="Rgba64"/> value.</param>
         void FromRgba64(Rgba64 source);

src/ImageSharp/PixelFormats/PixelOperations{TPixel}.cs

@@ -169,7 +169,7 @@ namespace SixLabors.ImageSharp.PixelFormats
                 return;
             }
 
-            // Normal converson
+            // Normal conversion
             ref TDestinationPixel destRef = ref MemoryMarshal.GetReference(destinationColors);
             for (int i = 0; i < count; i++)
             {

tests/ImageSharp.Tests/Helpers/RowIntervalTests.cs

@@ -1,9 +1,9 @@
-using System;
-using System.Runtime.CompilerServices;
+// Copyright (c) Six Labors and contributors.
+// Licensed under the Apache License, Version 2.0.
 
+using System;
+using System.Runtime.CompilerServices;
 using SixLabors.ImageSharp.Memory;
-using SixLabors.Memory;
-
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Helpers
@@ -35,4 +35,4 @@ namespace SixLabors.ImageSharp.Tests.Helpers
             }
         }
     }
-}
+}

tests/ImageSharp.Tests/Numerics/RationalTests.cs

@@ -1,7 +1,6 @@
 // Copyright (c) Six Labors and contributors.
 // Licensed under the Apache License, Version 2.0.
 
-using SixLabors.ImageSharp.MetaData.Profiles.Exif;
 using SixLabors.ImageSharp.Primitives;
 
 using Xunit;

tests/ImageSharp.Tests/TestUtilities/TestDataGenerator.cs

@@ -1,10 +1,24 @@
-using System;
+// Copyright (c) Six Labors and contributors.
+// Licensed under the Apache License, Version 2.0.
+
+using System;
 using System.Numerics;
 
 namespace SixLabors.ImageSharp.Tests
 {
+    /// <summary>
+    /// Helper methods that allow the creation of random test data.
+    /// </summary>
     internal static class TestDataGenerator
     {
+        /// <summary>
+        /// Creates an <see cref="float[]"/> of the given length consisting of random values between the two ranges.
+        /// </summary>
+        /// <param name="rnd">The pseudo-random number generator.</param>
+        /// <param name="length">The length.</param>
+        /// <param name="minVal">The minimum value.</param>
+        /// <param name="maxVal">The maximum value.</param>
+        /// <returns>The <see cref="float[]"/>.</returns>
         public static float[] GenerateRandomFloatArray(this Random rnd, int length, float minVal, float maxVal)
         {
             float[] values = new float[length];
@@ -17,6 +31,14 @@ namespace SixLabors.ImageSharp.Tests
             return values;
         }
 
+        /// <summary>
+        /// Creates an <see cref="Vector4[]"/> of the given length consisting of random values between the two ranges.
+        /// </summary>
+        /// <param name="rnd">The pseudo-random number generator.</param>
+        /// <param name="length">The length.</param>
+        /// <param name="minVal">The minimum value.</param>
+        /// <param name="maxVal">The maximum value.</param>
+        /// <returns>The <see cref="Vector4[]"/>.</returns>
         public static Vector4[] GenerateRandomVectorArray(this Random rnd, int length, float minVal, float maxVal)
         {
             var values = new Vector4[length];
@@ -33,20 +55,32 @@ namespace SixLabors.ImageSharp.Tests
             return values;
         }
 
+        /// <summary>
+        /// Creates an <see cref="float[]"/> of the given length consisting of rounded random values between the two ranges.
+        /// </summary>
+        /// <param name="rnd">The pseudo-random number generator.</param>
+        /// <param name="length">The length.</param>
+        /// <param name="minVal">The minimum value.</param>
+        /// <param name="maxVal">The maximum value.</param>
+        /// <returns>The <see cref="float[]"/>.</returns>
         public static float[] GenerateRandomRoundedFloatArray(this Random rnd, int length, float minVal, float maxVal)
         {
             float[] values = new float[length];
 
             for (int i = 0; i < length; i++)
             {
-                values[i] = (float) Math.Round(rnd.GetRandomFloat(minVal, maxVal));
+                values[i] = (float)Math.Round(rnd.GetRandomFloat(minVal, maxVal));
             }
 
             return values;
         }
 
-
-
+        /// <summary>
+        /// Creates an <see cref="byte[]"/> of the given length consisting of random values.
+        /// </summary>
+        /// <param name="rnd">The pseudo-random number generator.</param>
+        /// <param name="length">The length.</param>
+        /// <returns>The <see cref="byte[]"/>.</returns>
         public static byte[] GenerateRandomByteArray(this Random rnd, int length)
         {
             byte[] values = new byte[length];
@@ -54,9 +88,6 @@ namespace SixLabors.ImageSharp.Tests
             return values;
         }
 
-        private static float GetRandomFloat(this Random rnd, float minVal, float maxVal)
-        {
-            return (float)rnd.NextDouble() * (maxVal - minVal) + minVal;
-        }
+        private static float GetRandomFloat(this Random rnd, float minVal, float maxVal) => ((float)rnd.NextDouble() * (maxVal - minVal)) + minVal;
     }
 }