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@ -1,15 +1,15 @@ |
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// Copyright (c) Six Labors and contributors.
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// Copyright (c) Six Labors and contributors.
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// Licensed under the Apache License, Version 2.0.
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// Licensed under the Apache License, Version 2.0.
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using System; |
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using System.Numerics; |
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using System.Numerics; |
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using System.Runtime.CompilerServices; |
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using System.Runtime.CompilerServices; |
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using System.Runtime.InteropServices; |
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namespace SixLabors.ImageSharp.PixelFormats |
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namespace SixLabors.ImageSharp.PixelFormats |
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{ |
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{ |
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/// <summary>
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/// <summary>
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/// Packed pixel type containing four 8-bit unsigned normalized values ranging from 0 to 255.
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/// Packed pixel type containing four 8-bit unsigned normalized values ranging from 0 to 255.
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/// The color components are stored in alpha, red, green, and blue order.
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/// The color components are stored in alpha, red, green, and blue order (least significant to most significant byte).
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/// <para>
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/// <para>
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/// Ranges from [0, 0, 0, 0] to [1, 1, 1, 1] in vector form.
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/// Ranges from [0, 0, 0, 0] to [1, 1, 1, 1] in vector form.
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/// </para>
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/// </para>
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@ -18,27 +18,28 @@ namespace SixLabors.ImageSharp.PixelFormats |
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/// This struct is fully mutable. This is done (against the guidelines) for the sake of performance,
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/// This struct is fully mutable. This is done (against the guidelines) for the sake of performance,
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/// as it avoids the need to create new values for modification operations.
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/// as it avoids the need to create new values for modification operations.
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/// </remarks>
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/// </remarks>
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[StructLayout(LayoutKind.Sequential)] |
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public struct Argb32 : IPixel<Argb32>, IPackedVector<uint> |
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public struct Argb32 : IPixel<Argb32>, IPackedVector<uint> |
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{ |
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{ |
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/// <summary>
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/// <summary>
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/// The shift count for the blue component
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/// Gets or sets the alpha component.
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/// </summary>
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/// </summary>
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private const int BlueShift = 0; |
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public byte A; |
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/// <summary>
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/// <summary>
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/// The shift count for the green component
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/// Gets or sets the red component.
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/// </summary>
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/// </summary>
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private const int GreenShift = 8; |
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public byte R; |
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/// <summary>
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/// <summary>
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/// The shift count for the red component
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/// Gets or sets the green component.
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/// </summary>
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/// </summary>
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private const int RedShift = 16; |
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public byte G; |
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/// <summary>
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/// <summary>
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/// The shift count for the alpha component
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/// Gets or sets the blue component.
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/// </summary>
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/// </summary>
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private const int AlphaShift = 24; |
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public byte B; |
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/// <summary>
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/// <summary>
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/// The maximum byte value.
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/// The maximum byte value.
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@ -56,11 +57,13 @@ namespace SixLabors.ImageSharp.PixelFormats |
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/// <param name="r">The red component.</param>
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/// <param name="r">The red component.</param>
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/// <param name="g">The green component.</param>
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/// <param name="g">The green component.</param>
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/// <param name="b">The blue component.</param>
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/// <param name="b">The blue component.</param>
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/// <param name="a">The alpha component.</param>
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public Argb32(byte r, byte g, byte b, byte a) |
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public Argb32(byte r, byte g, byte b) |
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{ |
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{ |
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this.PackedValue = Pack(r, g, b, a); |
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this.R = r; |
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this.G = g; |
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this.B = b; |
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this.A = 255; |
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} |
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} |
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/// <summary>
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/// <summary>
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@ -69,10 +72,14 @@ namespace SixLabors.ImageSharp.PixelFormats |
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/// <param name="r">The red component.</param>
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/// <param name="r">The red component.</param>
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/// <param name="g">The green component.</param>
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/// <param name="g">The green component.</param>
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/// <param name="b">The blue component.</param>
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/// <param name="b">The blue component.</param>
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/// <param name="a">The alpha component.</param>
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public Argb32(byte r, byte g, byte b) |
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public Argb32(byte r, byte g, byte b, byte a) |
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{ |
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{ |
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this.PackedValue = Pack(r, g, b, 255); |
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this.R = r; |
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this.G = g; |
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this.B = b; |
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this.A = a; |
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} |
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} |
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/// <summary>
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/// <summary>
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@ -82,9 +89,11 @@ namespace SixLabors.ImageSharp.PixelFormats |
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/// <param name="g">The green component.</param>
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/// <param name="g">The green component.</param>
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/// <param name="b">The blue component.</param>
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/// <param name="b">The blue component.</param>
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/// <param name="a">The alpha component.</param>
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/// <param name="a">The alpha component.</param>
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public Argb32(float r, float g, float b, float a = 1) |
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public Argb32(float r, float g, float b, float a = 1) |
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: this() |
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{ |
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{ |
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this.PackedValue = Pack(r, g, b, a); |
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this.Pack(r, g, b, a); |
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} |
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} |
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/// <summary>
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/// <summary>
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@ -93,9 +102,11 @@ namespace SixLabors.ImageSharp.PixelFormats |
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/// <param name="vector">
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/// <param name="vector">
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/// The vector containing the components for the packed vector.
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/// The vector containing the components for the packed vector.
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/// </param>
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/// </param>
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public Argb32(Vector3 vector) |
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public Argb32(Vector3 vector) |
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: this() |
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{ |
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{ |
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this.PackedValue = Pack(ref vector); |
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this.Pack(ref vector); |
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} |
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} |
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/// <summary>
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/// <summary>
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@ -104,9 +115,11 @@ namespace SixLabors.ImageSharp.PixelFormats |
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/// <param name="vector">
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/// <param name="vector">
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/// The vector containing the components for the packed vector.
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/// The vector containing the components for the packed vector.
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/// </param>
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/// </param>
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public Argb32(Vector4 vector) |
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public Argb32(Vector4 vector) |
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: this() |
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{ |
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{ |
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this.PackedValue = Pack(ref vector); |
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this.Pack(ref vector); |
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} |
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} |
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/// <summary>
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/// <summary>
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@ -115,84 +128,30 @@ namespace SixLabors.ImageSharp.PixelFormats |
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/// <param name="packed">
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/// <param name="packed">
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/// The packed value.
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/// The packed value.
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/// </param>
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/// </param>
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public Argb32(uint packed = 0) |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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{ |
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public Argb32(uint packed) |
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this.PackedValue = packed; |
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: this() |
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} |
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/// <inheritdoc/>
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public uint PackedValue { get; set; } |
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/// <summary>
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/// Gets or sets the red component.
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/// </summary>
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public byte R |
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{ |
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{ |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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this.Argb = packed; |
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get |
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{ |
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return (byte)(this.PackedValue >> RedShift); |
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} |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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set |
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{ |
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this.PackedValue = this.PackedValue & 0xFF00FFFF | (uint)value << RedShift; |
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} |
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} |
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} |
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/// <summary>
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/// <summary>
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/// Gets or sets the green component.
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/// Gets or sets the packed representation of the Argb32 struct.
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/// </summary>
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/// </summary>
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public byte G |
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public uint Argb |
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{ |
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{ |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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get |
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get => Unsafe.As<Argb32, uint>(ref this); |
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{ |
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return (byte)(this.PackedValue >> GreenShift); |
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} |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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set |
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set => Unsafe.As<Argb32, uint>(ref this) = value; |
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{ |
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this.PackedValue = this.PackedValue & 0xFFFF00FF | (uint)value << GreenShift; |
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} |
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} |
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} |
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/// <summary>
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/// <inheritdoc/>
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/// Gets or sets the blue component.
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public uint PackedValue |
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/// </summary>
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public byte B |
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{ |
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{ |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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get => this.Argb; |
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get |
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set => this.Argb = value; |
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{ |
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return (byte)(this.PackedValue >> BlueShift); |
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} |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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set |
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{ |
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this.PackedValue = this.PackedValue & 0xFFFFFF00 | (uint)value << BlueShift; |
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} |
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} |
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/// <summary>
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/// Gets or sets the alpha component.
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/// </summary>
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public byte A |
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{ |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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get |
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{ |
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return (byte)(this.PackedValue >> AlphaShift); |
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} |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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set |
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{ |
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this.PackedValue = this.PackedValue & 0x00FFFFFF | (uint)value << AlphaShift; |
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} |
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} |
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} |
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/// <summary>
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/// <summary>
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@ -210,7 +169,7 @@ namespace SixLabors.ImageSharp.PixelFormats |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public static bool operator ==(Argb32 left, Argb32 right) |
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public static bool operator ==(Argb32 left, Argb32 right) |
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{ |
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{ |
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return left.PackedValue == right.PackedValue; |
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return left.Argb == right.Argb; |
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} |
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} |
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/// <summary>
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/// <summary>
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@ -224,14 +183,14 @@ namespace SixLabors.ImageSharp.PixelFormats |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public static bool operator !=(Argb32 left, Argb32 right) |
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public static bool operator !=(Argb32 left, Argb32 right) |
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{ |
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{ |
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return left.PackedValue != right.PackedValue; |
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return left.Argb != right.Argb; |
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} |
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} |
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/// <inheritdoc/>
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/// <inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public void PackFromVector4(Vector4 vector) |
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public void PackFromVector4(Vector4 vector) |
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{ |
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{ |
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this.PackedValue = Pack(ref vector); |
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this.Pack(ref vector); |
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} |
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} |
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/// <inheritdoc />
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/// <inheritdoc />
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@ -262,7 +221,27 @@ namespace SixLabors.ImageSharp.PixelFormats |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public void PackFromRgba32(Rgba32 source) |
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public void PackFromRgba32(Rgba32 source) |
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{ |
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{ |
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this.PackedValue = Pack(source.R, source.G, source.B, source.A); |
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this.R = source.R; |
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this.G = source.G; |
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this.B = source.B; |
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this.A = source.A; |
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} |
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/// <inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public void PackFromArgb32(Argb32 source) |
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{ |
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this.PackedValue = source.PackedValue; |
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} |
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/// <inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public void PackFromBgra32(Bgra32 source) |
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{ |
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this.R = source.R; |
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this.G = source.G; |
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this.B = source.B; |
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this.A = source.A; |
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} |
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} |
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/// <inheritdoc />
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/// <inheritdoc />
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@ -284,6 +263,13 @@ namespace SixLabors.ImageSharp.PixelFormats |
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dest.A = this.A; |
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dest.A = this.A; |
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} |
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} |
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/// <inheritdoc />
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public void ToArgb32(ref Argb32 dest) |
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{ |
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dest = this; |
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} |
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/// <inheritdoc />
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/// <inheritdoc />
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public void ToBgr24(ref Bgr24 dest) |
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public void ToBgr24(ref Bgr24 dest) |
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@ -303,17 +289,47 @@ namespace SixLabors.ImageSharp.PixelFormats |
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dest.A = this.A; |
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dest.A = this.A; |
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} |
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} |
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/// <summary>
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/// Converts the pixel to <see cref="Rgba32"/> format.
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/// </summary>
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/// <returns>The RGBA value</returns>
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public Rgba32 ToRgba32() => new Rgba32(this.R, this.G, this.B, this.A); |
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/// <summary>
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/// Converts the pixel to <see cref="Bgra32"/> format.
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/// </summary>
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/// <returns>The RGBA value</returns>
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public Bgra32 ToBgra32() => new Bgra32(this.R, this.G, this.B, this.A); |
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/// <summary>
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/// Converts the pixel to <see cref="Argb32"/> format.
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/// </summary>
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/// <returns>The RGBA value</returns>
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public Argb32 ToArgb32() => this; |
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/// <inheritdoc/>
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/// <inheritdoc/>
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public override bool Equals(object obj) |
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public override bool Equals(object obj) |
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{ |
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{ |
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return obj is Argb32 && this.Equals((Argb32)obj); |
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return obj is Argb32 argb32 && this.Equals(argb32); |
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} |
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} |
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/// <inheritdoc/>
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/// <inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public bool Equals(Argb32 other) |
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public bool Equals(Argb32 other) |
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{ |
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{ |
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return this.PackedValue == other.PackedValue; |
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return this.Argb == other.Argb; |
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} |
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/// <summary>
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/// Gets a string representation of the packed vector.
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/// </summary>
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/// <returns>A string representation of the packed vector.</returns>
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public override string ToString() |
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{ |
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return $"({this.R},{this.G},{this.B},{this.A})"; |
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} |
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} |
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/// <inheritdoc/>
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/// <inheritdoc/>
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@ -321,65 +337,59 @@ namespace SixLabors.ImageSharp.PixelFormats |
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public override int GetHashCode() |
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public override int GetHashCode() |
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{ |
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{ |
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// ReSharper disable once NonReadonlyMemberInGetHashCode
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// ReSharper disable once NonReadonlyMemberInGetHashCode
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return this.PackedValue.GetHashCode(); |
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return this.Argb.GetHashCode(); |
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} |
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} |
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/// <summary>
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/// <summary>
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/// Packs the four floats into a <see cref="uint"/>.
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/// Gets the <see cref="Vector4"/> representation without normalizing to [0, 1]
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/// </summary>
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/// </summary>
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/// <param name="x">The x-component</param>
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/// <returns>A <see cref="Vector4"/> of values in [0, 255] </returns>
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/// <param name="y">The y-component</param>
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/// <param name="z">The z-component</param>
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/// <param name="w">The w-component</param>
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/// <returns>The <see cref="uint"/></returns>
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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private static uint Pack(float x, float y, float z, float w) |
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internal Vector4 ToByteScaledVector4() |
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{ |
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{ |
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var value = new Vector4(x, y, z, w); |
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return new Vector4(this.R, this.G, this.B, this.A); |
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return Pack(ref value); |
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} |
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} |
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/// <summary>
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/// <summary>
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/// Packs the four floats into a <see cref="uint"/>.
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/// Packs the four floats into a color.
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/// </summary>
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/// </summary>
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/// <param name="x">The x-component</param>
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/// <param name="x">The x-component</param>
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/// <param name="y">The y-component</param>
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/// <param name="y">The y-component</param>
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/// <param name="z">The z-component</param>
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/// <param name="z">The z-component</param>
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/// <param name="w">The w-component</param>
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/// <param name="w">The w-component</param>
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/// <returns>The <see cref="uint"/></returns>
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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private static uint Pack(byte x, byte y, byte z, byte w) |
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private void Pack(float x, float y, float z, float w) |
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{ |
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{ |
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return (uint)(x << RedShift | y << GreenShift | z << BlueShift | w << AlphaShift); |
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var value = new Vector4(x, y, z, w); |
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this.Pack(ref value); |
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} |
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} |
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/// <summary>
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/// <summary>
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/// Packs a <see cref="Vector3"/> into a uint.
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/// Packs a <see cref="Vector3"/> into a uint.
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/// </summary>
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/// </summary>
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/// <param name="vector">The vector containing the values to pack.</param>
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/// <param name="vector">The vector containing the values to pack.</param>
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/// <returns>The <see cref="uint"/> containing the packed values.</returns>
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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private static uint Pack(ref Vector3 vector) |
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private void Pack(ref Vector3 vector) |
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{ |
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{ |
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var value = new Vector4(vector, 1); |
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var value = new Vector4(vector, 1); |
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return Pack(ref value); |
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this.Pack(ref value); |
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} |
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} |
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/// <summary>
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/// <summary>
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/// Packs a <see cref="Vector4"/> into a uint.
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/// Packs a <see cref="Vector4"/> into a color.
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/// </summary>
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/// </summary>
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/// <param name="vector">The vector containing the values to pack.</param>
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/// <param name="vector">The vector containing the values to pack.</param>
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/// <returns>The <see cref="uint"/> containing the packed values.</returns>
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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private static uint Pack(ref Vector4 vector) |
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private void Pack(ref Vector4 vector) |
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{ |
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|
{ |
|
|
vector *= MaxBytes; |
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|
vector *= MaxBytes; |
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|
vector += Half; |
|
|
vector += Half; |
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|
vector = Vector4.Clamp(vector, Vector4.Zero, MaxBytes); |
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vector = Vector4.Clamp(vector, Vector4.Zero, MaxBytes); |
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return (uint)(((byte)vector.X << RedShift) |
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| ((byte)vector.Y << GreenShift) |
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this.R = (byte)vector.X; |
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| ((byte)vector.Z << BlueShift) |
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this.G = (byte)vector.Y; |
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| (byte)vector.W << AlphaShift); |
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this.B = (byte)vector.Z; |
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|
|
this.A = (byte)vector.W; |
|
|
} |
|
|
} |
|
|
} |
|
|
} |
|
|
} |
|
|
} |
James Jackson-South
8 years ago
GitHub