129 lines
3.4 KiB
C#
129 lines
3.4 KiB
C#
using System.Runtime.InteropServices;
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using Flawless.Core.Modal;
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namespace Flawless.Core.BinaryDataFormat;
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/* Depot File System Format Design - Version 1
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*
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* For best accessing performance, consider use checksum as filename. Binary info did not contains file name mapping, so
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* use another file to get the file map of this depot. The structure to describe a map has already defined below and you
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* can choose binary or text to store them. Advice to use JSON as text-based solution.
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*
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* Consider of compability when depot format was updated, we have configure a lots of area as empty.
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*
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* Notice that we assume that all data are represent as LITTLE ENDIAN.
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*
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* Padding with 8 byte width, so:
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*
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* ------------------------------------------------------------
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* 0 : Magic Number
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* 1 : ~
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* 2 : ~
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* 3 : ~
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* 4 : Header CRC Checksum (From self range 8 to 63)
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* 5 : ~
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* 6 : ~
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* 7 : ~
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* ------------------------------------------------------------
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* 8 : Version Code
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* 9 : Compressing Algorithm Type
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* 10 : (Preserve)
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* 11 : (Preserve)
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* 12 : (Preserve)
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* 13 : (Preserve)
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* 14 : (Preserve)
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* 15 : (Preserve)
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* ------------------------------------------------------------
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* 16 : File Map MD5 Checksum (From extern map data)
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* 17 : ~
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* 18 : ~
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* 19 : ~
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* 20 : ~
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* 21 : ~
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* 22 : ~
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* 23 : ~
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* ------------------------------------------------------------
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* 24 :
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* 25 : ~
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* 26 : ~
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* 27 : ~
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* 28 : ~
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* 29 : ~
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* 30 : ~
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* 31 : ~
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* ------------------------------------------------------------
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* 32 : Depot MD5 Checksum (From 48 to end, uncompressed)
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* 33 : ~
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* 34 : ~
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* 35 : ~
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* 36 : ~
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* 37 : ~
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* 38 : ~
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* 39 : ~
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* ------------------------------------------------------------
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* 40 : ~
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* 41 : ~
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* 42 : ~
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* 43 : ~
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* 44 : ~
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* 45 : ~
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* 46 : ~
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* 47 : ~
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* ------------------------------------------------------------
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* 48 : Depot Generate Time
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* 49 : ~
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* 50 : ~
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* 51 : ~
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* 52 : ~
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* 53 : ~
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* 54 : ~
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* 55 : ~
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* ------------------------------------------------------------
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* 56 : Payload Size
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* 57 : ~
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* 58 : ~
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* 59 : ~
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* 60 : ~
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* 61 : ~
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* 62 : ~
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* 63 : ~
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* ------------------------------------------------------------
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* PAYLOAD
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* ------------------------------------------------------------
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*/
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[Serializable, StructLayout(LayoutKind.Explicit, CharSet = CharSet.Ansi, Pack = 8, Size = 64)]
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public struct StandardDepotHeaderV1
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{
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// 1A: Not a text-based file
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// F7A373 = Flawless
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public const uint FormatMagicNumber = 0x1AF7A373u;
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[FieldOffset(0)] public uint MagicNumber;
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[FieldOffset(4)] public uint HeaderCRCChecksum;
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[FieldOffset(8)] public byte Version;
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[FieldOffset(9)] public byte CompressType;
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[FieldOffset(16)] public ulong FileMapMd5ChecksumLower;
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[FieldOffset(24)] public ulong FileMapMd5ChecksumUpper;
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[FieldOffset(32)] public ulong DepotMd5ChecksumLower;
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[FieldOffset(40)] public ulong DepotMd5ChecksumUpper;
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[FieldOffset(48)] public ulong GenerateTime;
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[FieldOffset(56)] public ulong PayloadSize;
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}
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[Serializable]
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public struct StandardDepotMapV1
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{
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public uint FileCount;
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public DepotFileInfo[] Files;
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} |