diff --git a/src/ImageSharp/Color/Color.Conversions.cs b/src/ImageSharp/Color/Color.Conversions.cs index 0455fd26a4..bf7869e53d 100644 --- a/src/ImageSharp/Color/Color.Conversions.cs +++ b/src/ImageSharp/Color/Color.Conversions.cs @@ -17,56 +17,118 @@ namespace SixLabors.ImageSharp /// /// The containing the color information. [MethodImpl(InliningOptions.ShortMethod)] - public Color(Rgba64 pixel) => this.data = pixel; + public Color(Rgba64 pixel) + { + this.data = pixel; + this.boxedHighPrecisionPixel = null; + } + + /// + /// Initializes a new instance of the struct. + /// + /// The containing the color information. + [MethodImpl(InliningOptions.ShortMethod)] + public Color(Rgb48 pixel) + { + this.data = new Rgba64(pixel.R, pixel.G, pixel.B, ushort.MaxValue); + this.boxedHighPrecisionPixel = null; + } + + /// + /// Initializes a new instance of the struct. + /// + /// The containing the color information. + [MethodImpl(InliningOptions.ShortMethod)] + public Color(La32 pixel) + { + this.data = new Rgba64(pixel.L, pixel.L, pixel.L, pixel.A); + this.boxedHighPrecisionPixel = null; + } + + /// + /// Initializes a new instance of the struct. + /// + /// The containing the color information. + [MethodImpl(InliningOptions.ShortMethod)] + public Color(L16 pixel) + { + this.data = new Rgba64(pixel.PackedValue, pixel.PackedValue, pixel.PackedValue, ushort.MaxValue); + this.boxedHighPrecisionPixel = null; + } /// /// Initializes a new instance of the struct. /// /// The containing the color information. [MethodImpl(InliningOptions.ShortMethod)] - public Color(Rgba32 pixel) => this.data = new Rgba64(pixel); + public Color(Rgba32 pixel) + { + this.data = new Rgba64(pixel); + this.boxedHighPrecisionPixel = null; + } /// /// Initializes a new instance of the struct. /// /// The containing the color information. [MethodImpl(InliningOptions.ShortMethod)] - public Color(Argb32 pixel) => this.data = new Rgba64(pixel); + public Color(Argb32 pixel) + { + this.data = new Rgba64(pixel); + this.boxedHighPrecisionPixel = null; + } /// /// Initializes a new instance of the struct. /// /// The containing the color information. [MethodImpl(InliningOptions.ShortMethod)] - public Color(Bgra32 pixel) => this.data = new Rgba64(pixel); + public Color(Bgra32 pixel) + { + this.data = new Rgba64(pixel); + this.boxedHighPrecisionPixel = null; + } /// /// Initializes a new instance of the struct. /// /// The containing the color information. [MethodImpl(InliningOptions.ShortMethod)] - public Color(Rgb24 pixel) => this.data = new Rgba64(pixel); + public Color(Rgb24 pixel) + { + this.data = new Rgba64(pixel); + this.boxedHighPrecisionPixel = null; + } /// /// Initializes a new instance of the struct. /// /// The containing the color information. [MethodImpl(InliningOptions.ShortMethod)] - public Color(Bgr24 pixel) => this.data = new Rgba64(pixel); + public Color(Bgr24 pixel) + { + this.data = new Rgba64(pixel); + this.boxedHighPrecisionPixel = null; + } /// /// Initializes a new instance of the struct. /// /// The containing the color information. [MethodImpl(InliningOptions.ShortMethod)] - public Color(Vector4 vector) => this.data = new Rgba64(vector); + public Color(Vector4 vector) + { + vector = Numerics.Clamp(vector, Vector4.Zero, Vector4.One); + this.boxedHighPrecisionPixel = new RgbaVector(vector.X, vector.Y, vector.Z, vector.W); + this.data = default; + } /// /// Converts a to . /// /// The . /// The . - public static explicit operator Vector4(Color color) => color.data.ToVector4(); + public static explicit operator Vector4(Color color) => color.ToVector4(); /// /// Converts an to . @@ -74,24 +136,82 @@ namespace SixLabors.ImageSharp /// The . /// The . [MethodImpl(InliningOptions.ShortMethod)] - public static explicit operator Color(Vector4 source) => new Color(source); + public static explicit operator Color(Vector4 source) => new(source); [MethodImpl(InliningOptions.ShortMethod)] - internal Rgba32 ToRgba32() => this.data.ToRgba32(); + internal Rgba32 ToRgba32() + { + if (this.boxedHighPrecisionPixel is null) + { + return this.data.ToRgba32(); + } + + Rgba32 value = default; + this.boxedHighPrecisionPixel.ToRgba32(ref value); + return value; + } [MethodImpl(InliningOptions.ShortMethod)] - internal Bgra32 ToBgra32() => this.data.ToBgra32(); + internal Bgra32 ToBgra32() + { + if (this.boxedHighPrecisionPixel is null) + { + return this.data.ToBgra32(); + } + + Bgra32 value = default; + value.FromScaledVector4(this.boxedHighPrecisionPixel.ToScaledVector4()); + return value; + } [MethodImpl(InliningOptions.ShortMethod)] - internal Argb32 ToArgb32() => this.data.ToArgb32(); + internal Argb32 ToArgb32() + { + if (this.boxedHighPrecisionPixel is null) + { + return this.data.ToArgb32(); + } + + Argb32 value = default; + value.FromScaledVector4(this.boxedHighPrecisionPixel.ToScaledVector4()); + return value; + } [MethodImpl(InliningOptions.ShortMethod)] - internal Rgb24 ToRgb24() => this.data.ToRgb24(); + internal Rgb24 ToRgb24() + { + if (this.boxedHighPrecisionPixel is null) + { + return this.data.ToRgb24(); + } + + Rgb24 value = default; + value.FromScaledVector4(this.boxedHighPrecisionPixel.ToScaledVector4()); + return value; + } [MethodImpl(InliningOptions.ShortMethod)] - internal Bgr24 ToBgr24() => this.data.ToBgr24(); + internal Bgr24 ToBgr24() + { + if (this.boxedHighPrecisionPixel is null) + { + return this.data.ToBgr24(); + } + + Bgr24 value = default; + value.FromScaledVector4(this.boxedHighPrecisionPixel.ToScaledVector4()); + return value; + } [MethodImpl(InliningOptions.ShortMethod)] - internal Vector4 ToVector4() => this.data.ToVector4(); + internal Vector4 ToVector4() + { + if (this.boxedHighPrecisionPixel is null) + { + return this.data.ToScaledVector4(); + } + + return this.boxedHighPrecisionPixel.ToScaledVector4(); + } } } diff --git a/src/ImageSharp/Color/Color.cs b/src/ImageSharp/Color/Color.cs index d5eedc160b..7c21d62ddf 100644 --- a/src/ImageSharp/Color/Color.cs +++ b/src/ImageSharp/Color/Color.cs @@ -4,7 +4,6 @@ using System; using System.Numerics; using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; using SixLabors.ImageSharp.PixelFormats; namespace SixLabors.ImageSharp @@ -21,6 +20,7 @@ namespace SixLabors.ImageSharp public readonly partial struct Color : IEquatable { private readonly Rgba64 data; + private readonly IPixel boxedHighPrecisionPixel; [MethodImpl(InliningOptions.ShortMethod)] private Color(byte r, byte g, byte b, byte a) @@ -30,6 +30,8 @@ namespace SixLabors.ImageSharp ColorNumerics.UpscaleFrom8BitTo16Bit(g), ColorNumerics.UpscaleFrom8BitTo16Bit(b), ColorNumerics.UpscaleFrom8BitTo16Bit(a)); + + this.boxedHighPrecisionPixel = null; } [MethodImpl(InliningOptions.ShortMethod)] @@ -40,6 +42,15 @@ namespace SixLabors.ImageSharp ColorNumerics.UpscaleFrom8BitTo16Bit(g), ColorNumerics.UpscaleFrom8BitTo16Bit(b), ushort.MaxValue); + + this.boxedHighPrecisionPixel = null; + } + + [MethodImpl(InliningOptions.ShortMethod)] + private Color(IPixel pixel) + { + this.boxedHighPrecisionPixel = pixel; + this.data = default; } /// @@ -52,13 +63,10 @@ namespace SixLabors.ImageSharp /// otherwise, false. /// [MethodImpl(InliningOptions.ShortMethod)] - public static bool operator ==(Color left, Color right) - { - return left.Equals(right); - } + public static bool operator ==(Color left, Color right) => left.Equals(right); /// - /// Checks whether two structures are equal. + /// Checks whether two structures are not equal. /// /// The left hand operand. /// The right hand operand. @@ -67,10 +75,7 @@ namespace SixLabors.ImageSharp /// otherwise, false. /// [MethodImpl(InliningOptions.ShortMethod)] - public static bool operator !=(Color left, Color right) - { - return !left.Equals(right); - } + public static bool operator !=(Color left, Color right) => !left.Equals(right); /// /// Creates a from RGBA bytes. @@ -81,7 +86,7 @@ namespace SixLabors.ImageSharp /// The alpha component (0-255). /// The . [MethodImpl(InliningOptions.ShortMethod)] - public static Color FromRgba(byte r, byte g, byte b, byte a) => new Color(r, g, b, a); + public static Color FromRgba(byte r, byte g, byte b, byte a) => new(r, g, b, a); /// /// Creates a from RGB bytes. @@ -91,7 +96,46 @@ namespace SixLabors.ImageSharp /// The blue component (0-255). /// The . [MethodImpl(InliningOptions.ShortMethod)] - public static Color FromRgb(byte r, byte g, byte b) => new Color(r, g, b); + public static Color FromRgb(byte r, byte g, byte b) => new(r, g, b); + + /// + /// Creates a from the given . + /// + /// The pixel to convert from. + /// The pixel format. + /// The . + [MethodImpl(InliningOptions.ShortMethod)] + public static Color FromPixel(TPixel pixel) + where TPixel : unmanaged, IPixel + { + // Avoid boxing in case we can convert to Rgba64 safely and efficently + if (typeof(TPixel) == typeof(Rgba64)) + { + return new((Rgba64)(object)pixel); + } + else if (typeof(TPixel) == typeof(Rgb48)) + { + return new((Rgb48)(object)pixel); + } + else if (typeof(TPixel) == typeof(La32)) + { + return new((La32)(object)pixel); + } + else if (typeof(TPixel) == typeof(L16)) + { + return new((L16)(object)pixel); + } + else if (Unsafe.SizeOf() <= Unsafe.SizeOf()) + { + Rgba32 p = default; + pixel.ToRgba32(ref p); + return new(p); + } + else + { + return new(pixel); + } + } /// /// Creates a new instance of the struct @@ -213,7 +257,7 @@ namespace SixLabors.ImageSharp public override string ToString() => this.ToHex(); /// - /// Converts the color instance to a specified type. + /// Converts the color instance to a specified type. /// /// The pixel type to convert to. /// The pixel value. @@ -221,13 +265,18 @@ namespace SixLabors.ImageSharp public TPixel ToPixel() where TPixel : unmanaged, IPixel { - TPixel pixel = default; + if (this.boxedHighPrecisionPixel is TPixel pixel) + { + return pixel; + } + + pixel = default; pixel.FromRgba64(this.data); return pixel; } /// - /// Bulk converts a span of to a span of a specified type. + /// Bulk converts a span of to a span of a specified type. /// /// The pixel type to convert to. /// The configuration. @@ -240,28 +289,38 @@ namespace SixLabors.ImageSharp Span destination) where TPixel : unmanaged, IPixel { - ReadOnlySpan rgba64Span = MemoryMarshal.Cast(source); - PixelOperations.Instance.FromRgba64(configuration, rgba64Span, destination); + Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination)); + for (int i = 0; i < source.Length; i++) + { + destination[i] = source[i].ToPixel(); + } } /// [MethodImpl(InliningOptions.ShortMethod)] public bool Equals(Color other) { - return this.data.PackedValue == other.data.PackedValue; + if (this.boxedHighPrecisionPixel is null && other.boxedHighPrecisionPixel is null) + { + return this.data.PackedValue == other.data.PackedValue; + } + + return this.boxedHighPrecisionPixel?.Equals(other.boxedHighPrecisionPixel) == true; } /// - public override bool Equals(object obj) - { - return obj is Color other && this.Equals(other); - } + public override bool Equals(object obj) => obj is Color other && this.Equals(other); /// [MethodImpl(InliningOptions.ShortMethod)] public override int GetHashCode() { - return this.data.PackedValue.GetHashCode(); + if (this.boxedHighPrecisionPixel is null) + { + return this.data.PackedValue.GetHashCode(); + } + + return this.boxedHighPrecisionPixel.GetHashCode(); } } } diff --git a/tests/ImageSharp.Tests/Color/ColorTests.CastTo.cs b/tests/ImageSharp.Tests/Color/ColorTests.CastTo.cs index ee1820de77..3003265ca6 100644 --- a/tests/ImageSharp.Tests/Color/ColorTests.CastTo.cs +++ b/tests/ImageSharp.Tests/Color/ColorTests.CastTo.cs @@ -66,7 +66,7 @@ namespace SixLabors.ImageSharp.Tests [Fact] public void Rgb24() { - var source = new Rgb24(1, 22, 231); + var source = new Rgb24(1, 22, 231); // Act: var color = new Color(source); @@ -79,7 +79,7 @@ namespace SixLabors.ImageSharp.Tests [Fact] public void Bgr24() { - var source = new Bgr24(1, 22, 231); + var source = new Bgr24(1, 22, 231); // Act: var color = new Color(source); @@ -88,6 +88,28 @@ namespace SixLabors.ImageSharp.Tests Bgr24 data = color; Assert.Equal(source, data); } + + [Fact] + public void GenericPixel() + { + AssertGenericPixel(new RgbaVector(float.Epsilon, 2 * float.Epsilon, float.MaxValue, float.MinValue)); + AssertGenericPixel(new Rgba64(1, 2, ushort.MaxValue, ushort.MaxValue - 1)); + AssertGenericPixel(new Rgb48(1, 2, ushort.MaxValue - 1)); + AssertGenericPixel(new La32(1, ushort.MaxValue - 1)); + AssertGenericPixel(new L16(ushort.MaxValue - 1)); + AssertGenericPixel(new Rgba32(1, 2, 255, 254)); + } + + private static void AssertGenericPixel(TPixel source) + where TPixel : unmanaged, IPixel + { + // Act: + var color = Color.FromPixel(source); + + // Assert: + TPixel actual = color.ToPixel(); + Assert.Equal(source, actual); + } } } }