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new archive formats, AVC and NeXAS.
This commit is contained in:
morkt
parent
9afd8e6cb3
commit
e895f636ab
126
ArcFormats/ArcAVC.cs
Normal file
126
ArcFormats/ArcAVC.cs
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//! \file ArcAVC.cs
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//! \date Sun Mar 15 20:41:17 2015
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//! \brief AVC engine resource archive.
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//
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// Copyright (C) 2015 by morkt
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.Composition;
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using System.IO;
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using GameRes.Utility;
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namespace GameRes.Formats.AVC
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{
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public class ArchiveFile : ArcFile
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{
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public readonly byte[] Key;
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public ArchiveFile (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, byte[] key)
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: base (arc, impl, dir)
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{
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Key = key;
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}
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}
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[Export(typeof(ArchiveFormat))]
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public class DatOpener : ArchiveFormat
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{
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public override string Tag { get { return "AVC"; } }
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public override string Description { get { return "AVC engine resource archive"; } }
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public override uint Signature { get { return 0; } }
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public override bool IsHierarchic { get { return false; } }
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public override bool CanCreate { get { return false; } }
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public DatOpener ()
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{
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Extensions = new string[] { "dat" };
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}
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private static readonly string ArchiveKey = "SETSUEI-";
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public override ArcFile TryOpen (ArcView file)
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{
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var header = new byte[0x34];
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if (0x34 != file.View.Read (0, header, 0, 0x34))
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return null;
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var key = new byte[8];
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/*
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for (int i = 0; i < 8; ++i)
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header[8+i] ^= (byte)ArchiveKey[i];
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for (int i = 0; i < 0x24; ++i)
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header[0x10+i] ^= header[8+(i&7)];
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if (!Binary.AsciiEqual (header, 0x10, "ARCHIVE"))
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return null;
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Buffer.BlockCopy (header, 8, key, 0, 8);
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*/
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for (int i = 0; i < 8; ++i)
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key[i] = (byte)(header[0x10+i] ^ "ARCHIVE\0"[i]);
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for (int i = 9; i < 0x24; ++i)
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header[0x10+i] ^= key[i&7];
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int index_offset = LittleEndian.ToInt32 (header, 0x20);
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int count = LittleEndian.ToInt32 (header, 0x24);
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if (index_offset < 0x24 || index_offset >= file.MaxOffset || count <= 0 || count > 0xfffff)
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return null;
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var index = new byte[0x114 * count];
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int index_size = file.View.Read (index_offset+0x10, index, 0, (uint)index.Length);
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count = index_size / 0x114;
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if (count * 0x114 != index_size)
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return null;
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for (int i = 0; i < index_size; ++i)
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index[i] ^= key[(index_offset+i)&7];
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var dir = new List<Entry> (count);
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index_offset = 0;
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for (int i = 0; i < count; ++i)
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{
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if (0 != index[index_offset++])
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return null;
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int name_length = 0;
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while (name_length < 0x100 && 0 != index[index_offset+name_length])
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name_length++;
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if (0 == name_length)
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continue;
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var name = Encodings.cp932.GetString (index, index_offset, name_length);
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var entry = FormatCatalog.Instance.CreateEntry (name);
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index_offset += 0x107;
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entry.Offset = 0x10 + LittleEndian.ToUInt32 (index, index_offset);
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entry.Size = LittleEndian.ToUInt32 (index, index_offset+4);
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index_offset += 0x0c;
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dir.Add (entry);
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}
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return new ArchiveFile (file, this, dir, key);
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}
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public override Stream OpenEntry (ArcFile arc, Entry entry)
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{
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var arcf = arc as ArchiveFile;
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if (null == arcf)
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return arc.File.CreateStream (entry.Offset, entry.Size);
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var data = new byte[entry.Size];
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arc.File.View.Read (entry.Offset, data, 0, entry.Size);
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int base_offset = (int)(entry.Offset-0x10);
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for (int i = 0; i < data.Length; ++i)
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data[i] ^= arcf.Key[((base_offset+i)&7)];
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return new MemoryStream (data, false);
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}
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}
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}
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@ -63,6 +63,7 @@
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<Compile Include="ArcADPACK.cs" />
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<Compile Include="ArcAFS.cs" />
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<Compile Include="ArcAMI.cs" />
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<Compile Include="ArcAVC.cs" />
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<Compile Include="ArcBGI.cs" />
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<Compile Include="ArcCommon.cs" />
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<Compile Include="ArcDRS.cs" />
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@ -76,6 +77,7 @@
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<Compile Include="ArcMajiro.cs" />
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<Compile Include="ArcMGPK.cs" />
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<Compile Include="ArcNEKO.cs" />
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<Compile Include="ArcNexas.cs" />
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<Compile Include="ArcNitro.cs" />
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<Compile Include="ArcNPA.cs" />
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<Compile Include="ArcNSA.cs" />
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238
ArcFormats/ArcNexas.cs
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238
ArcFormats/ArcNexas.cs
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//! \file ArcNexas.cs
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//! \date Sat Mar 14 18:03:04 2015
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//! \brief NeXAS enginge resource archives implementation.
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//
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// Copyright (C) 2015 by morkt
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//
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using System;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Collections.Generic;
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using System.ComponentModel.Composition;
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using GameRes.Formats.Strings;
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using GameRes.Utility;
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using ZLibNet;
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namespace GameRes.Formats.NeXAS
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{
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public enum Compression
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{
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None,
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Lzss,
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Huffman,
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Deflate,
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DeflateOrNone,
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}
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public class PacArchive : ArcFile
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{
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public readonly Compression PackType;
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public PacArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, Compression type)
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: base (arc, impl, dir)
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{
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PackType = type;
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}
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}
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[Export(typeof(ArchiveFormat))]
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public class PacOpener : ArchiveFormat
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{
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public override string Tag { get { return "PAC"; } }
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public override string Description { get { return "NeXAS engine resource archive"; } }
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public override uint Signature { get { return 0x00434150; } } // 'PAC\000'
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public override bool IsHierarchic { get { return false; } }
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public override bool CanCreate { get { return false; } }
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public override ArcFile TryOpen (ArcView file)
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{
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int count = file.View.ReadInt32 (4);
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if (count <= 0 || count > 0xfffff)
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return null;
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int pack_type = file.View.ReadInt32 (8);
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uint index_size = file.View.ReadUInt32 (file.MaxOffset-4);
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if (index_size >= file.MaxOffset)
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return null;
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byte[] index_packed = new byte[index_size];
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file.View.Read (file.MaxOffset-4-index_size, index_packed, 0, index_size);
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for (int i = 0; i < index_packed.Length; ++i)
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index_packed[i] = (byte)~index_packed[i];
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var index = HuffmanDecode (index_packed, count*0x4c);
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var dir = new List<Entry> (count);
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int offset = 0;
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for (int i = 0; i < count; ++i)
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{
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int name_length = 0;
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while (name_length < 0x40 && 0 != index[offset+name_length])
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name_length++;
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if (0 == name_length)
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continue;
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var name = Encodings.cp932.GetString (index, offset, name_length);
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var entry = new PackedEntry
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{
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Name = name,
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Type = FormatCatalog.Instance.GetTypeFromName (name),
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Offset = LittleEndian.ToUInt32 (index, offset+0x40),
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UnpackedSize = LittleEndian.ToUInt32 (index, offset+0x44),
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Size = LittleEndian.ToUInt32 (index, offset+0x48),
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};
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if (!entry.CheckPlacement (file.MaxOffset))
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return null;
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dir.Add (entry);
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offset += 0x4c;
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}
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if (0 == pack_type)
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return new ArcFile (file, this, dir);
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return new PacArchive (file, this, dir, (Compression)pack_type);
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}
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public override Stream OpenEntry (ArcFile arc, Entry entry)
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{
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var input = arc.File.CreateStream (entry.Offset, entry.Size);
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var pac = arc as PacArchive;
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var pent = entry as PackedEntry;
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if (null == pac || Compression.None == pac.PackType ||
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null == pent || pent.Size == pent.UnpackedSize)
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return input;
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switch (pac.PackType)
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{
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case Compression.Lzss:
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return input; // LZSS compression not implemented
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case Compression.Huffman:
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using (input)
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{
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var packed = new byte[entry.Size];
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input.Read (packed, 0, packed.Length);
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var unpacked = HuffmanDecode (packed, (int)pent.UnpackedSize);
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return new MemoryStream (unpacked, 0, (int)pent.UnpackedSize, false);
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}
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case Compression.Deflate:
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default:
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return new ZLibStream (input, CompressionMode.Decompress);
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}
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}
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static private byte[] HuffmanDecode (byte[] packed, int unpacked_size)
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{
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var dst = new byte[unpacked_size];
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var decoder = new HuffmanDecoder (packed, dst);
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return decoder.Unpack();
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}
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}
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internal class HuffmanDecoder
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{
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byte[] m_src;
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byte[] m_dst;
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ushort[] lhs = new ushort[512];
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ushort[] rhs = new ushort[512];
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ushort t1032 = 256;
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int t0;
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int remaining;
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int t8;
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int t12;
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public HuffmanDecoder (byte[] src, byte[] dst)
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{
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m_src = src;
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m_dst = dst;
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t0 = 0;
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remaining = src.Length;
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t8 = 0;
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t12 = 0;
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}
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public byte[] Unpack ()
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{
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int a2 = 0;
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t1032 = 256;
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ushort v3 = sub_401540();
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ushort v13 = v3; // [sp+0h] [bp-4h]@1
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while (a2 < m_dst.Length)
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{
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ushort v6 = v3;
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if ( v6 >= 0x100u )
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{
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do
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{
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while ( 0 == t8 )
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{
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int v8 = m_src[t0++];
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int v9 = t12;
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t8 += 8;
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--remaining;
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t12 = v8 | (v9 << 8);
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}
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int v10 = t12;
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int v11 = --t8;
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uint v12 = (uint)t12;
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t12 = v10 & ~(-1 << v11);
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if ( 0 != (((-1 << v11) & v12) >> v11) )
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v6 = rhs[v6];
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else
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v6 = lhs[v6];
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}
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while ( v6 >= 0x100u );
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v3 = v13;
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}
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m_dst[a2++] = (byte)v6;
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}
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return m_dst;
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}
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ushort sub_401540()
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{
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if ( 0 != GetBits (1) )
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{
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ushort v4 = t1032++;
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lhs[v4] = sub_401540();
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rhs[v4] = sub_401540();
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return v4;
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}
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else
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{
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return (ushort)GetBits (8);
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}
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}
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uint GetBits (int n)
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{
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while ( n > t8 )
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{
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int v4 = m_src[t0++];
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--remaining;
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t12 = v4 | (t12 << 8);
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t8 += 8;
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}
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int v7 = t12;
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uint v8 = (uint)t12;
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t8 -= n;
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t12 = v7 & ~(-1 << t8);
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return (uint)(((-1 << t8) & v8) >> t8);
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}
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}
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}
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@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
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// You can specify all the values or you can default the Build and Revision Numbers
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// by using the '*' as shown below:
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// [assembly: AssemblyVersion("1.0.*")]
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[assembly: AssemblyVersion ("1.0.4.29")]
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[assembly: AssemblyFileVersion ("1.0.4.29")]
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[assembly: AssemblyVersion ("1.0.4.30")]
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[assembly: AssemblyFileVersion ("1.0.4.30")]
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