mirror of
https://github.com/SabreTools/SabreTools.Serialization.git
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7689c6dd07
This change looks dramatic, but it's just separating out the already-split namespaces into separate top-level folders. In theory, every single one could be built into their own Nuget package. `SabreTools.Serialization` still builds the normal Nuget package that is used by all other projects and includes all namespaces.
81 lines
2.7 KiB
C#
81 lines
2.7 KiB
C#
namespace SabreTools.Data.Models.XZ
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{
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/// <summary>
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/// Represents a single compressed block in the stream
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/// </summary>
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public class Block
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{
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/// <summary>
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/// Size of the header
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/// </summary>
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/// <remarks>
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/// The real header size can be calculated by the following:
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/// (HeaderSize + 1) * 4
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/// </remarks>
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public byte HeaderSize { get; set; }
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/// <summary>
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/// The Block Flags field is a bit field
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/// </summary>
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public BlockFlags Flags { get; set; }
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/// <summary>
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/// Size of the compressed data
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/// Present if <see cref="BlockFlags.CompressedSize"/> is set.
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/// </summary>
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/// <remarks>Stored as a variable-length integer</remarks>
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public ulong CompressedSize { get; set; }
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/// <summary>
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/// Size of the block after decompression
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/// Present if <see cref="BlockFlags.UncompressedSize"/> is set.
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/// </summary>
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/// <remarks>Stored as a variable-length integer</remarks>
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public ulong UncompressedSize { get; set; }
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/// <summary>
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/// List of filter flags
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/// </summary>
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/// <remarks>
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/// The number of filter flags is given by the first two
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/// bits of <see cref="Flags"/>
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/// </remarks>
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public FilterFlag[] FilterFlags { get; set; } = [];
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/// <summary>
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/// This field contains as many null byte as it is needed to make
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/// the Block Header have the size specified in Block Header Size.
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/// </summary>
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public byte[] HeaderPadding { get; set; } = [];
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/// <summary>
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/// The CRC32 is calculated over everything in the Block Header
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/// field except the CRC32 field itself. It is stored as an
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/// unsigned 32-bit little endian integer.
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/// </summary>
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public uint Crc32 { get; set; }
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/// <summary>
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/// The format of Compressed Data depends on Block Flags and List
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/// of Filter Flags
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/// </summary>
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public byte[] CompressedData { get; set; } = [];
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/// <summary>
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/// Block Padding MUST contain 0-3 null bytes to make the size of
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/// the Block a multiple of four bytes. This can be needed when
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/// the size of Compressed Data is not a multiple of four.
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/// </summary>
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public byte[] BlockPadding { get; set; } = [];
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/// <summary>
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/// The type and size of the Check field depends on which bits
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/// are set in the Stream Flags field.
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///
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/// The Check, when used, is calculated from the original
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/// uncompressed data.
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/// </summary>
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public byte[] Check { get; set; } = [];
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}
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}
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