64 lines
1.5 KiB
C#
64 lines
1.5 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using System.IO;
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namespace MixBrowser
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{
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class MixEntry
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{
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public readonly uint Hash;
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public readonly uint Offset;
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public readonly uint Length;
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public MixEntry(BinaryReader r)
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{
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Hash = r.ReadUInt32();
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Offset = r.ReadUInt32();
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Length = r.ReadUInt32();
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}
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public override string ToString()
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{
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string filename;
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if (Names.TryGetValue(Hash, out filename))
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return string.Format("{0} - offset 0x{1:x8} - length 0x{2:x8}", filename, Offset, Length);
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else
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return string.Format("0x{0:x8} - offset 0x{1:x8} - length 0x{2:x8}", Hash, Offset, Length);
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}
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public static uint HashFilename(string name)
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{
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if (name.Length > 12)
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name = name.Substring(0, 12);
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name = name.ToUpperInvariant();
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if (name.Length % 4 != 0)
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name = name.PadRight(name.Length + (4 - name.Length % 4), '\0');
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MemoryStream ms = new MemoryStream(Encoding.ASCII.GetBytes(name));
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BinaryReader reader = new BinaryReader(ms);
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uint result = 0;
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try
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{
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while(true)
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result = ((result << 1) | (result >> 31)) + reader.ReadUInt32();
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}
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catch (EndOfStreamException) { }
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return result;
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}
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static Dictionary<uint, string> Names = new Dictionary<uint,string>();
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public static void AddStandardName(string s)
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{
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uint hash = HashFilename(s);
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Names.Add(hash, s);
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}
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public const int Size = 12;
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}
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}
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