79 lines
2.2 KiB
C#
79 lines
2.2 KiB
C#
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using System.Collections;
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using System.Collections.Generic;
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using System.IO;
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using UnityEngine;
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using System.Text;
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namespace UnityFS
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{
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public static class UnityBinUtils
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{
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public static void SwapUInt(ref uint val)
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{
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val = (val >> 24) | ((val >> 8) & 0x0000ff00) | ((val << 8) & 0x00ff0000) | (val << 24);
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}
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public static string ReadRawString(this BinaryReader br)
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{
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long startPos = br.BaseStream.Position;
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while (true)
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{
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byte val = br.ReadByte();
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if(val == 0)
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break;
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}
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int size = (int)(br.BaseStream.Position - startPos);
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br.BaseStream.Position = startPos;
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byte[] buffer = br.ReadBytes(size);
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string ret = Encoding.UTF8.GetString(buffer, 0, size - 1);
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return ret;
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}
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public static void WriteRawString(this BinaryWriter bw, string str)
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{
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byte[] buffer = Encoding.UTF8.GetBytes(str);
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bw.Write(buffer, 0, buffer.Length);
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bw.Write((byte)0);
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}
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public static string ReadSizeString(this BinaryReader br)
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{
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int size = br.ReadInt32();
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byte[] buff = br.ReadBytes(size);
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br.BaseStream.AlignOffset4();
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string ret = Encoding.UTF8.GetString(buff);
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return ret;
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}
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public static void WriteSizeString(this BinaryWriter bw, string str)
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{
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byte[] buff = Encoding.UTF8.GetBytes(str);
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bw.Write(buff.Length);
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bw.Write(buff, 0, buff.Length);
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bw.BaseStream.AlignOffset4();
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}
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public static void AlignOffset4(this Stream stream)
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{
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int offset = (((int)stream.Position + 3) >> 2) << 2;
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stream.Position = offset;
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}
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public static long AlignedReadInt64(this BinaryReader br)
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{
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br.BaseStream.AlignOffset4();
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return br.ReadInt64();
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}
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public static void AlignedWriteInt64(this BinaryWriter bw, long val)
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{
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bw.BaseStream.AlignOffset4();
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bw.Write(val);
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}
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}
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}
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