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https://github.com/SabreTools/SabreTools.Serialization.git
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5bb8557555
* ZArchive support * Fix offset record format * Simplfiy Extensions * Delete unused writers and test data * Rework reader * Fix build
69 lines
2.3 KiB
C#
69 lines
2.3 KiB
C#
namespace SabreTools.Data.Models.ZArchive
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{
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/// <see href="https://github.com/Exzap/ZArchive/"/>
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public static class Constants
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{
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/// <summary>
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/// Number of compressed blocks referred to by a record
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/// </summary>
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public const int BlockSize = 64 * 1024;
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/// <summary>
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/// Number of compressed blocks referred to by a record
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/// </summary>
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public const int BlocksPerOffsetRecord = 16;
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/// <summary>
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/// Number of bytes stored in an offset record
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/// </summary>
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public const int OffsetRecordSize = sizeof(ulong) + sizeof(ushort) * BlocksPerOffsetRecord;
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/// <summary>
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/// Number of bytes stored in a file/directory entry
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/// </summary>
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public const int FileDirectoryEntrySize = 16;
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/// <summary>
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/// Number of bytes stored in the footer
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/// 6 OffsetInfo fields,
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/// </summary>
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public const int FooterSize = 144;
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/// <summary>
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/// NameOffsetAndTypeFlag value for the root node in the FileTree
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/// </summary>
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public const uint RootNode = 0x7FFFFFFF;
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/// <summary>
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/// Mask for the NameOffsetAndTypeFlag value when checking if it is a file
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/// </summary>
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public const uint FileFlag = 0x80000000;
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/// <summary>
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/// Maximum size of the Offset Records section
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/// </summary>
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public const ulong MaxOffsetRecordsSize = 0xFFFFFFFF;
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/// <summary>
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/// Maximum size of the Offset Records section
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/// </summary>
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public const ulong MaxNameTableSize = 0x7FFFFFFF;
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/// <summary>
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/// Maximum size of the File Tree section
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/// </summary>
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public const ulong MaxFileTreeSize = 0x7FFFFFFF;
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/// <summary>
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/// ZArchive magic bytes at end of file
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/// </summary>
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public static readonly byte[] MagicBytes = [0x16, 0x9F, 0x52, 0xD6];
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/// <summary>
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/// ZArchive version field that acts as an extended magic immediately before final 4 magic bytes
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/// Currently only version 1 is implemented, any future version bytes are not suppported yet
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/// </summary>
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public static readonly byte[] Version1Bytes = [0x61, 0xBF, 0x3A, 0x01];
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}
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}
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