mirror of https://github.com/SixLabors/ImageSharp
James Jackson-South
8 years ago
committed by
GitHub
GitHub
101 changed files with 1069 additions and 1088 deletions
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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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using SixLabors.ImageSharp.Memory; |
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using SixLabors.Primitives; |
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namespace SixLabors.ImageSharp.Formats.Jpeg.Common.Decoder |
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namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder |
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{ |
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/// <summary>
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/// Common interface to represent raw Jpeg components.
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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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using System; |
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using System.Collections.Generic; |
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using SixLabors.Primitives; |
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namespace SixLabors.ImageSharp.Formats.Jpeg.Common.Decoder |
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namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder |
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{ |
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/// <inheritdoc />
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/// <summary>
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/// Represents decompressed, unprocessed jpeg data with spectral space <see cref="T:SixLabors.ImageSharp.Formats.Jpeg.Common.Decoder.IJpegComponent" />-s.
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/// Represents decompressed, unprocessed jpeg data with spectral space <see cref="IJpegComponent" />-s.
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/// </summary>
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internal interface IRawJpegData : IDisposable |
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{ |
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namespace SixLabors.ImageSharp.Formats.Jpeg.Common.Decoder |
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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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namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder |
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{ |
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/// <summary>
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/// Identifies the colorspace of a Jpeg image
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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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using System; |
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using SixLabors.ImageSharp.Memory; |
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using SixLabors.Primitives; |
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namespace SixLabors.ImageSharp.Formats.Jpeg.Common.Decoder |
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namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder |
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{ |
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/// <summary>
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/// Encapsulates postprocessing data for one component for <see cref="JpegImagePostProcessor"/>.
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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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using Block8x8F = SixLabors.ImageSharp.Formats.Jpeg.Common.Block8x8F; |
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namespace SixLabors.ImageSharp.Formats.Jpeg.GolangPort.Components |
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namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Encoder |
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{ |
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/// <summary>
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/// Poor man's stackalloc: Contains a value-type <see cref="float"/> buffer sized for 4 <see cref="Common.Block8x8F"/> instances.
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/// Poor man's stackalloc: Contains a value-type <see cref="float"/> buffer sized for 4 <see cref="Block8x8F"/> instances.
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/// Useful for decoder/encoder operations allocating a block for each Jpeg component.
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/// </summary>
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internal unsafe struct BlockQuad |
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{ |
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/// <summary>
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/// The value-type <see cref="float"/> buffer sized for 4 <see cref="Common.Block8x8F"/> instances.
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/// The value-type <see cref="float"/> buffer sized for 4 <see cref="Block8x8F"/> instances.
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/// </summary>
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public fixed float Data[4 * Block8x8F.Size]; |
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} |
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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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namespace SixLabors.ImageSharp.Formats.Jpeg.GolangPort.Components.Encoder |
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namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Encoder |
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{ |
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/// <summary>
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/// Enumerates the Huffman tables
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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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namespace SixLabors.ImageSharp.Formats.Jpeg.GolangPort.Components.Encoder |
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namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Encoder |
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{ |
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/// <summary>
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/// A compiled look-up table representation of a huffmanSpec.
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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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namespace SixLabors.ImageSharp.Formats.Jpeg.GolangPort.Components.Encoder |
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namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Encoder |
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{ |
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/// <summary>
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/// The Huffman encoding specifications.
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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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namespace SixLabors.ImageSharp.Formats.Jpeg.GolangPort.Components.Encoder |
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namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Encoder |
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{ |
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/// <summary>
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/// Enumerates the quantization tables
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using System; |
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using System.Runtime.CompilerServices; |
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using SixLabors.ImageSharp.Advanced; |
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using SixLabors.ImageSharp.Formats.Jpeg.Common; |
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using SixLabors.ImageSharp.PixelFormats; |
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namespace SixLabors.ImageSharp.Formats.Jpeg.GolangPort.Components.Encoder |
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namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Encoder |
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{ |
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/// <summary>
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/// On-stack worker struct to efficiently encapsulate the TPixel -> Rgb24 -> YCbCr conversion chain of 8x8 pixel blocks.
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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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using System.Numerics; |
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using System.Runtime.CompilerServices; |
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// <auto-generated />
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namespace SixLabors.ImageSharp.Formats.Jpeg.Common |
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namespace SixLabors.ImageSharp.Formats.Jpeg.Components |
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{ |
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internal unsafe partial struct GenericBlock8x8<T> |
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{ |
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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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using System; |
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using System.Runtime.CompilerServices; |
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using System.Runtime.InteropServices; |
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namespace SixLabors.ImageSharp.Formats.Jpeg.Common |
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namespace SixLabors.ImageSharp.Formats.Jpeg.Components |
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{ |
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/// <summary>
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/// Holds the Jpeg UnZig array in a value/stack type.
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@ -1,189 +0,0 @@ |
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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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using System.Collections.Generic; |
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namespace SixLabors.ImageSharp.Formats.Jpeg.GolangPort |
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{ |
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/// <summary>
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/// Defines jpeg constants defined in the specification.
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/// </summary>
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internal static class OrigJpegConstants |
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{ |
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/// <summary>
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/// The maximum allowable length in each dimension of a jpeg image.
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/// </summary>
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public const ushort MaxLength = 65535; |
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/// <summary>
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/// The list of mimetypes that equate to a jpeg.
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/// </summary>
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public static readonly IEnumerable<string> MimeTypes = new[] { "image/jpeg", "image/pjpeg" }; |
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/// <summary>
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/// The list of file extensions that equate to a jpeg.
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/// </summary>
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public static readonly IEnumerable<string> FileExtensions = new[] { "jpg", "jpeg", "jfif" }; |
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/// <summary>
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/// Describes common Jpeg markers
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/// </summary>
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internal static class Markers |
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{ |
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/// <summary>
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/// Marker prefix. Next byte is a marker.
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/// </summary>
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public const byte XFF = 0xff; |
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/// <summary>
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/// Same as <see cref="XFF"/> but of type <see cref="int"/>
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/// </summary>
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public const int XFFInt = XFF; |
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/// <summary>
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/// Start of Image
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/// </summary>
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public const byte SOI = 0xd8; |
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/// <summary>
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/// Start of Frame (baseline DCT)
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/// <remarks>
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/// Indicates that this is a baseline DCT-based JPEG, and specifies the width, height, number of components,
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/// and component subsampling (e.g., 4:2:0).
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/// </remarks>
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/// </summary>
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public const byte SOF0 = 0xc0; |
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/// <summary>
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/// Start Of Frame (Extended Sequential DCT)
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/// <remarks>
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/// Indicates that this is a progressive DCT-based JPEG, and specifies the width, height, number of components,
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/// and component subsampling (e.g., 4:2:0).
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/// </remarks>
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/// </summary>
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public const byte SOF1 = 0xc1; |
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/// <summary>
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/// Start Of Frame (progressive DCT)
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/// <remarks>
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/// Indicates that this is a progressive DCT-based JPEG, and specifies the width, height, number of components,
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/// and component subsampling (e.g., 4:2:0).
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/// </remarks>
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/// </summary>
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public const byte SOF2 = 0xc2; |
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/// <summary>
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/// Define Huffman Table(s)
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/// <remarks>
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/// Specifies one or more Huffman tables.
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/// </remarks>
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/// </summary>
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public const byte DHT = 0xc4; |
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/// <summary>
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/// Define Quantization Table(s)
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/// <remarks>
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/// Specifies one or more quantization tables.
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/// </remarks>
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/// </summary>
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public const byte DQT = 0xdb; |
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/// <summary>
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/// Define Restart Interval
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/// <remarks>
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/// Specifies the interval between RSTn markers, in macroblocks. This marker is followed by two bytes
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/// indicating the fixed size so it can be treated like any other variable size segment.
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/// </remarks>
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/// </summary>
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public const byte DRI = 0xdd; |
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/// <summary>
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/// Define First Restart
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/// <remarks>
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/// Inserted every r macroblocks, where r is the restart interval set by a DRI marker.
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/// Not used if there was no DRI marker. The low three bits of the marker code cycle in value from 0 to 7.
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/// </remarks>
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/// </summary>
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public const byte RST0 = 0xd0; |
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/// <summary>
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/// Define Eigth Restart
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/// <remarks>
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/// Inserted every r macroblocks, where r is the restart interval set by a DRI marker.
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/// Not used if there was no DRI marker. The low three bits of the marker code cycle in value from 0 to 7.
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/// </remarks>
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/// </summary>
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public const byte RST7 = 0xd7; |
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/// <summary>
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/// Start of Scan
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/// <remarks>
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/// Begins a top-to-bottom scan of the image. In baseline DCT JPEG images, there is generally a single scan.
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/// Progressive DCT JPEG images usually contain multiple scans. This marker specifies which slice of data it
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/// will contain, and is immediately followed by entropy-coded data.
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/// </remarks>
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/// </summary>
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public const byte SOS = 0xda; |
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/// <summary>
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/// Comment
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/// <remarks>
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/// Contains a text comment.
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/// </remarks>
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/// </summary>
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public const byte COM = 0xfe; |
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/// <summary>
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/// End of Image
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/// </summary>
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public const byte EOI = 0xd9; |
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/// <summary>
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/// Application specific marker for marking the jpeg format.
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/// <see href="http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/JPEG.html"/>
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/// </summary>
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public const byte APP0 = 0xe0; |
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/// <summary>
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/// Application specific marker for marking where to store metadata.
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/// </summary>
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public const byte APP1 = 0xe1; |
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/// <summary>
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/// Application specific marker for marking where to store ICC profile information.
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/// </summary>
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public const byte APP2 = 0xe2; |
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/// <summary>
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/// Application specific marker used by Adobe for storing encoding information for DCT filters.
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/// </summary>
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public const byte APP14 = 0xee; |
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/// <summary>
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/// Application specific marker used by GraphicConverter to store JPEG quality.
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/// </summary>
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public const byte APP15 = 0xef; |
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} |
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/// <summary>
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/// Describes Adobe specific markers <see href="http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/JPEG.html#Adobe"/>
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/// </summary>
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internal static class Adobe |
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{ |
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/// <summary>
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/// The color transform is unknown.(RGB or CMYK)
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/// </summary>
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public const int ColorTransformUnknown = 0; |
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/// <summary>
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/// The color transform is YCbCr (luminance, red chroma, blue chroma)
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/// </summary>
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public const int ColorTransformYCbCr = 1; |
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/// <summary>
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/// The color transform is YCCK (luminance, red chroma, blue chroma, keyline)
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/// </summary>
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public const int ColorTransformYcck = 2; |
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} |
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} |
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} |
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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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using System; |
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using SixLabors.ImageSharp.Memory; |
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using SixLabors.ImageSharp.PixelFormats; |
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using Xunit; |
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// ReSharper disable InconsistentNaming
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namespace SixLabors.ImageSharp.Tests.Formats.Jpg |
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{ |
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public partial class JpegDecoderTests |
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{ |
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[Theory] |
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[WithFileCollection(nameof(BaselineTestJpegs), PixelTypes.Rgba32)] |
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public void DecodeBaselineJpeg_Orig<TPixel>(TestImageProvider<TPixel> provider) |
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where TPixel : struct, IPixel<TPixel> |
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{ |
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if (SkipTest(provider)) |
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{ |
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return; |
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} |
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// For 32 bit test enviroments:
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provider.Configuration.MemoryManager = ArrayPoolMemoryManager.CreateWithModeratePooling(); |
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using (Image<TPixel> image = provider.GetImage(GolangJpegDecoder)) |
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{ |
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image.DebugSave(provider); |
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provider.Utility.TestName = DecodeBaselineJpegOutputName; |
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image.CompareToReferenceOutput( |
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this.GetImageComparer(provider), |
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provider, |
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appendPixelTypeToFileName: false); |
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} |
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provider.Configuration.MemoryManager.ReleaseRetainedResources(); |
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} |
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[Theory] |
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[WithFileCollection(nameof(BaselineTestJpegs), PixelTypes.Rgba32)] |
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public void DecodeBaselineJpeg_PdfJs<TPixel>(TestImageProvider<TPixel> provider) |
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where TPixel : struct, IPixel<TPixel> |
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{ |
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if (TestEnvironment.RunsOnCI && !TestEnvironment.Is64BitProcess) |
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{ |
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// skipping to avoid OutOfMemoryException on CI
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return; |
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} |
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using (Image<TPixel> image = provider.GetImage(PdfJsJpegDecoder)) |
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{ |
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image.DebugSave(provider); |
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provider.Utility.TestName = DecodeBaselineJpegOutputName; |
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image.CompareToReferenceOutput( |
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this.GetImageComparer(provider), |
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provider, |
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appendPixelTypeToFileName: false); |
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} |
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} |
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[Theory] |
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[WithFile(TestImages.Jpeg.Issues.CriticalEOF214, PixelTypes.Rgba32)] |
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public void DecodeBaselineJpeg_CriticalEOF_ShouldThrow_Golang<TPixel>(TestImageProvider<TPixel> provider) |
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where TPixel : struct, IPixel<TPixel> |
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{ |
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// TODO: We need a public ImageDecoderException class in ImageSharp!
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Assert.ThrowsAny<Exception>(() => provider.GetImage(GolangJpegDecoder)); |
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} |
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[Theory] |
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[WithFile(TestImages.Jpeg.Issues.CriticalEOF214, PixelTypes.Rgba32)] |
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public void DecodeBaselineJpeg_CriticalEOF_ShouldThrow_PdfJs<TPixel>(TestImageProvider<TPixel> provider) |
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where TPixel : struct, IPixel<TPixel> |
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{ |
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// TODO: We need a public ImageDecoderException class in ImageSharp!
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Assert.ThrowsAny<Exception>(() => provider.GetImage(PdfJsJpegDecoder)); |
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} |
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[Theory(Skip = "Debug only, enable manually!")] |
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[WithFileCollection(nameof(BaselineTestJpegs), PixelTypes.Rgba32)] |
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public void CompareJpegDecoders_Baseline<TPixel>(TestImageProvider<TPixel> provider) |
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where TPixel : struct, IPixel<TPixel> |
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{ |
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this.CompareJpegDecodersImpl(provider, DecodeBaselineJpegOutputName); |
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} |
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} |
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} |
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@ -0,0 +1,72 @@ |
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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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using System.Collections.Generic; |
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namespace SixLabors.ImageSharp.Tests.Formats.Jpg |
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{ |
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public partial class JpegDecoderTests |
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{ |
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public static string[] BaselineTestJpegs = |
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{ |
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TestImages.Jpeg.Baseline.Calliphora, |
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TestImages.Jpeg.Baseline.Cmyk, TestImages.Jpeg.Baseline.Ycck, |
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TestImages.Jpeg.Baseline.Jpeg400, |
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TestImages.Jpeg.Baseline.Testorig420, |
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// BUG: The following image has a high difference compared to the expected output:
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// TestImages.Jpeg.Baseline.Jpeg420Small,
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TestImages.Jpeg.Baseline.Jpeg444, |
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TestImages.Jpeg.Baseline.Bad.BadEOF, |
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TestImages.Jpeg.Issues.MultiHuffmanBaseline394, |
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TestImages.Jpeg.Baseline.MultiScanBaselineCMYK, |
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TestImages.Jpeg.Baseline.Bad.BadRST |
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}; |
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public static string[] ProgressiveTestJpegs = |
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{ |
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TestImages.Jpeg.Progressive.Fb, |
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TestImages.Jpeg.Progressive.Progress, |
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TestImages.Jpeg.Progressive.Festzug, |
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TestImages.Jpeg.Progressive.Bad.BadEOF, |
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TestImages.Jpeg.Issues.BadCoeffsProgressive178, |
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TestImages.Jpeg.Issues.MissingFF00ProgressiveGirl159, |
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TestImages.Jpeg.Issues.MissingFF00ProgressiveBedroom159, |
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TestImages.Jpeg.Issues.BadZigZagProgressive385, |
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TestImages.Jpeg.Progressive.Bad.ExifUndefType, |
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TestImages.Jpeg.Issues.NoEoiProgressive517, |
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TestImages.Jpeg.Issues.BadRstProgressive518, |
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TestImages.Jpeg.Issues.MissingFF00ProgressiveBedroom159, |
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}; |
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/// <summary>
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/// Golang decoder is unable to decode these
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/// </summary>
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public static string[] PdfJsOnly = |
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{ |
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TestImages.Jpeg.Issues.NoEoiProgressive517, TestImages.Jpeg.Issues.BadRstProgressive518, |
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TestImages.Jpeg.Issues.MissingFF00ProgressiveBedroom159 |
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}; |
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private static readonly Dictionary<string, float> CustomToleranceValues = |
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new Dictionary<string, float> |
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{ |
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// Baseline:
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[TestImages.Jpeg.Baseline.Calliphora] = 0.00002f / 100, |
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[TestImages.Jpeg.Baseline.Bad.BadEOF] = 0.38f / 100, |
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[TestImages.Jpeg.Baseline.Testorig420] = 0.38f / 100, |
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[TestImages.Jpeg.Baseline.Bad.BadRST] = 0.0589f / 100, |
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// Progressive:
|
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[TestImages.Jpeg.Issues.MissingFF00ProgressiveGirl159] = 0.34f / 100, |
|||
[TestImages.Jpeg.Issues.BadCoeffsProgressive178] = 0.38f / 100, |
|||
[TestImages.Jpeg.Progressive.Bad.BadEOF] = 0.3f / 100, |
|||
[TestImages.Jpeg.Progressive.Festzug] = 0.02f / 100, |
|||
[TestImages.Jpeg.Progressive.Fb] = 0.16f / 100, |
|||
[TestImages.Jpeg.Progressive.Progress] = 0.31f / 100, |
|||
[TestImages.Jpeg.Issues.BadZigZagProgressive385] = 0.23f / 100, |
|||
[TestImages.Jpeg.Progressive.Bad.ExifUndefType] = 0.011f / 100, |
|||
}; |
|||
} |
|||
} |
|||
@ -0,0 +1,81 @@ |
|||
// Copyright (c) Six Labors and contributors.
|
|||
// Licensed under the Apache License, Version 2.0.
|
|||
|
|||
using System.Linq; |
|||
using SixLabors.ImageSharp.Memory; |
|||
using SixLabors.ImageSharp.PixelFormats; |
|||
using Xunit; |
|||
// ReSharper disable InconsistentNaming
|
|||
|
|||
namespace SixLabors.ImageSharp.Tests.Formats.Jpg |
|||
{ |
|||
public partial class JpegDecoderTests |
|||
{ |
|||
public const string DecodeProgressiveJpegOutputName = "DecodeProgressiveJpeg"; |
|||
|
|||
[Theory] |
|||
[WithFileCollection(nameof(ProgressiveTestJpegs), PixelTypes.Rgba32)] |
|||
public void DecodeProgressiveJpeg_Orig<TPixel>(TestImageProvider<TPixel> provider) |
|||
where TPixel : struct, IPixel<TPixel> |
|||
{ |
|||
if (TestEnvironment.RunsOnCI && !TestEnvironment.Is64BitProcess) |
|||
{ |
|||
// skipping to avoid OutOfMemoryException on CI
|
|||
return; |
|||
} |
|||
|
|||
// Golang decoder is unable to decode these:
|
|||
if (PdfJsOnly.Any(fn => fn.Contains(provider.SourceFileOrDescription))) |
|||
{ |
|||
return; |
|||
} |
|||
|
|||
// For 32 bit test enviroments:
|
|||
provider.Configuration.MemoryManager = ArrayPoolMemoryManager.CreateWithModeratePooling(); |
|||
|
|||
using (Image<TPixel> image = provider.GetImage(GolangJpegDecoder)) |
|||
{ |
|||
image.DebugSave(provider); |
|||
|
|||
provider.Utility.TestName = DecodeProgressiveJpegOutputName; |
|||
image.CompareToReferenceOutput( |
|||
this.GetImageComparer(provider), |
|||
provider, |
|||
appendPixelTypeToFileName: false); |
|||
} |
|||
|
|||
provider.Configuration.MemoryManager.ReleaseRetainedResources(); |
|||
} |
|||
|
|||
[Theory] |
|||
[WithFileCollection(nameof(ProgressiveTestJpegs), PixelTypes.Rgba32)] |
|||
public void DecodeProgressiveJpeg_PdfJs<TPixel>(TestImageProvider<TPixel> provider) |
|||
where TPixel : struct, IPixel<TPixel> |
|||
{ |
|||
if (SkipTest(provider)) |
|||
{ |
|||
// skipping to avoid OutOfMemoryException on CI
|
|||
return; |
|||
} |
|||
|
|||
using (Image<TPixel> image = provider.GetImage(PdfJsJpegDecoder)) |
|||
{ |
|||
image.DebugSave(provider); |
|||
|
|||
provider.Utility.TestName = DecodeProgressiveJpegOutputName; |
|||
image.CompareToReferenceOutput( |
|||
this.GetImageComparer(provider), |
|||
provider, |
|||
appendPixelTypeToFileName: false); |
|||
} |
|||
} |
|||
|
|||
[Theory(Skip = "Debug only, enable manually!")] |
|||
[WithFileCollection(nameof(ProgressiveTestJpegs), PixelTypes.Rgba32)] |
|||
public void CompareJpegDecoders_Progressive<TPixel>(TestImageProvider<TPixel> provider) |
|||
where TPixel : struct, IPixel<TPixel> |
|||
{ |
|||
this.CompareJpegDecodersImpl(provider, DecodeProgressiveJpegOutputName); |
|||
} |
|||
} |
|||
} |
|||
@ -1 +1 @@ |
|||
Subproject commit 8ab54f8003aff94b3a9662b0be46b0062cad6b74 |
|||
Subproject commit 8cff7b09d4a3b8d975a35cf04885264e5765e108 |
|||
|
After Width: | Height: | Size: 330 KiB |
|
Before Width: | Height: | Size: 2.1 MiB After Width: | Height: | Size: 2.1 MiB |
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Reference in new issue