源码BUG求帮忙修复

lcsq001 · 发表于 7 小时前

在咱们论坛下载了一份 LZSS压缩的源码可是无法正常运行求大神帮忙看看修复一下感激不尽附件源码

补充内容 (2026-2-10 11:12):
BUG 原因好像是结尾不能有0 这个字节

你的猫 · 发表于 7 小时前

子程序名	返回值类型	公开	备注
_启动子程序	整数型

变量名	类型	静态	数组	备注
原始文本	字节集
压缩后	字节集
i	整数型

原始文本＝ { 0, 0, 0, 0, 0, 0, 0, 0, 225, 3, 0, 0, 0, 0, 0, 0, 55, 43, 0, 0, 0, 0, 0, 0, 245, 57, 1, 0, 0, 0, 0, 0, 8, 226, 4, 0, 0, 0, 0, 0, 132, 71, 15, 0, 0, 0, 0, 0, 232, 166, 215, 0, 0, 0, 0, 0, 15, 108, 90, 1, 0, 0, 0, 0, 147, 108, 89, 2, 0, 0, 0, 0, 104, 204, 12, 6, 0, 0, 0, 0, 124, 55, 66, 11, 0, 0, 0, 0, 160, 186, 66, 19, 0, 0, 0, 0, 84, 84, 233, 30, 0, 0, 0, 0, 219, 207, 61, 46, 0, 0, 0, 0 }

如果 (取字节集长度 (原始文本) ＞ 1024 × 1024)

压缩后＝压缩数据 (原始文本)

调试输出 (取字节集长度 (原始文本), 取字节集长度 (压缩后))
返回 (0)

i支持库列表	支持库注释
dp1	数据操作支持库一
spec	特殊功能支持库

lcsq001 · 发表于 7 小时前

你的猫发表于 2026-2-10 10:37
[e=3].版本 2
.支持库 dp1
.支持库 spec

什么个意思不要乱回复谢谢

z573277679 · 发表于 6 小时前

开始运行被调试程序
* 字节集:79{182,80,0,225,3,48,0,55,43,48,0,245,187,57,1,32,0,8,226,4,32,0,132,187,71,15,32,0,232,166,215,32,0,15,123,108,90,32,26,147,108,89,2,16,0,239,104,204,12,6,16,0,124,55,66,189,11,16,0,160,186,66,19,16,0,84,247,84,233,30,16,0,219,207,61,46,0,16,0}
* 字节集:112{0,0,0,0,0,0,0,0,225,3,0,0,0,0,0,0,55,43,0,0,0,0,0,0,245,57,1,0,0,0,0,0,8,226,4,0,0,0,0,0,132,71,15,0,0,0,0,0,232,166,215,0,0,0,0,0,15,108,90,1,0,0,0,0,147,108,89,2,0,0,0,0,104,204,12,6,0,0,0,0,124,55,66,11,0,0,0,0,160,186,66,19,0,0,0,0,84,84,233,30,0,0,0,0,219,207,61,46,0,0,0,0}
被调试易程序运行完毕

lzss解压缩.e (968.76 KB, 下载次数: 7)

lcsq001 · 发表于 6 小时前

z573277679 发表于 2026-2-10 11:16
开始运行被调试程序
* 字节集:79{182,80,0,225,3,48,0,55,43,48,0,245,187,57,1,32,0,8,226,4,32,0,132,187 ...

滑动窗口：4096字节的循环缓冲区

最小匹配长度：3字节（小于等于2的匹配不压缩）

最大匹配长度：16字节

偏移量编码：12位（0-4095）

长度编码：4位（3-18，实际3-16）
按照这个参数压缩与解压的该怎么改压

484508911 · 发表于 6 小时前

自己看源码修复完了！

补充内容 (2026-2-10 11:44):
还有啥不懂直接我问！

z573277679 · 发表于 5 小时前

lcsq001 发表于 2026-2-10 11:27
滑动窗口：4096字节的循环缓冲区

最小匹配长度：3字节（小于等于2的匹配不压缩）

lzss解压缩.e (163.48 KB, 下载次数: 1)

lcsq001 · 发表于 1 小时前

z573277679 发表于 2026-2-10 12:59

大哥一直不对您在源代码把  感谢
using System;
using BKSystem.IO;

namespace TBL_TOOL
{
// Token: 0x02000007 RID: 7
public class LZ77
{
      // Token: 0x060000BC RID: 188 RVA: 0x00006B90 File Offset: 0x00004D90
      public static byte[] Compress(byte[] data)
      {
         if (data.Length == 0)
         {
            return new byte[4];
         }
         BitStream bitStream = new BitStream();
         bitStream.Write(true);
         bitStream.Write(data[0]);
         int i = 1;
         while (i < data.Length)
         {
            int num = i - 32;
            if (num < 0)
            {
                  num = 0;
            }
            int num2 = 0;
            while (i > num + num2)
            {
                  while (data[i == data[num + num2])
                  {
                     i++;
                     num2++;
                     if (i >= data.Length || num2 >= 15)
                     {
                        break;
                     }
                  }
                  num++;
                  if (num2 < 2 && num2 > 0)
                  {
                     i -= num2;
                     num2 = 0;
                  }
                  else if (num2 >= 2)
                  {
                     break;
                  }
            }
            if (num2 != 0)
            {
                  bitStream.Write(false);
                  bitStream.Write(num, 0, 12);
                  bitStream.Write(num2 - 2, 0, 4);
            }
            else
            {
                  bitStream.Write(true);
                  bitStream.Write(data[i]);
                  i++;
            }
         }
         bitStream.Write(false);
         bitStream.Write(0, 0, 12);
         byte[] array = new byte[bitStream.Length8];
         return bitStream.ToByteArray();
      }
}
}

压缩
// Token: 0x060000B3 RID: 179 RVA: 0x00005C2C File Offset: 0x00003E2C
      private bool DecryptFile(string fn)
      {
         bool result;
         try
         {
            FileStream fileStream = new FileStream(fn, FileMode.Open);
            byte[] array = new byte[(int)fileStream.Length];
            fileStream.Read(array, 0, (int)fileStream.Length);
            byte[] buffer;
            this.bit_reverse(ref array, out buffer);
            MemoryStream memoryStream = new MemoryStream(buffer);
            BitStream bitStream = new BitStream(memoryStream);
            MemoryStream memoryStream2 = new MemoryStream();
            bitStream.Position = 0L;
            bitStream.ReadByte();
            bool flag = true;
            uint input;
            bitStream.Read(out input);
            if ((ulong)this.HiLoShift(input) == (ulong)((long)(array.Length - 9)))
            {
                  uint num;
                  bitStream.Read(out num);
                  uint num2 = 0U;
                  uint num3;
                  bitStream.Read(out num3);
                  for (;;)
                  {
                     bitStream.Read(out flag);
                     while (flag)
                     {
                        byte value;
                        bitStream.Read(out value);
                        memoryStream2.WriteByte(value);
                        bitStream.Read(out flag);
                     }
                     uint num4;
                     bitStream.Read(out num4, 0, 12);
                     if (num4 == 0U)
                     {
                        break;
                     }
                     uint num5;
                     bitStream.Read(out num5, 0, 4);
                     long position = memoryStream2.Position;
                     memoryStream2.Position = (long)((ulong)(num2 * 4095U + num4 - 1U));
                     int num6 = 0;
                     while ((long)num6 <= (long)((ulong)(num5 + 1U)))
                     {
                        byte value2 = (byte)memoryStream2.ReadByte();
                        memoryStream2.Position = position;
                        memoryStream2.WriteByte(value2);
                        position = memoryStream2.Position;
                        memoryStream2.Position = (long)((ulong)(num2 * 4095U + num4) + (ulong)((long)num6));
                        num6++;
                     }
                     memoryStream2.Position = position;
                     if (num4 + num5 + 2U > 4095U)
                     {
                        num2 = ((num2 < (num4 + num5 + 2U) / 4095U) ? ((num4 + num5 + 2U) / 4095U) : num2);
                     }
                  }
            }
            else
            {
                  this.statusStrip1.Text = "Wrong File.";
            }
            string path = fn.Remove(fn.Length - 4) + "_DE.tbl";
            FileStream fileStream2 = new FileStream(path, FileMode.Create);
            memoryStream2.WriteTo(fileStream2);
            fileStream.Close();
            fileStream2.Close();
            memoryStream.Close();
            bitStream.Close();
            memoryStream2.Close();
            result = true;
         }
         catch (Exception)
         {
            result = false;
         }
         return result;
      }

是咱们参数不对还是哪里错了

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