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implemented 'CsPack2' archives.
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@ -142,6 +142,7 @@
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<Compile Include="Cadath\ImageCGF.cs" />
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<Compile Include="Carriere\ArcARC.cs" />
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<Compile Include="Carriere\ImageCGD.cs" />
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<Compile Include="CatSystem\ArcDAT.cs" />
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<Compile Include="CDPA\ArcPACK.cs" />
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<Compile Include="Cmvs\ArcCPZ1.cs" />
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<Compile Include="Cmvs\CpzHeader.cs" />
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@ -314,7 +315,9 @@
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<Compile Include="Software House Parsley\ArcUCG.cs" />
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<Compile Include="Speed\ArcARC.cs" />
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<Compile Include="Stack\ArcGPK.cs" />
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<Compile Include="StudioJikkenshitsu\ArcUMPK.cs" />
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<Compile Include="StudioJikkenshitsu\ImageDAT.cs" />
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<Compile Include="StudioJikkenshitsu\ImageGRC.cs" />
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<Compile Include="StudioJikkenshitsu\ImageGRD.cs" />
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<Compile Include="StudioJikkenshitsu\SjTransform.cs" />
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<Compile Include="StudioJikkenshitsu\WidgetSJDAT.xaml.cs">
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127
ArcFormats/CatSystem/ArcDAT.cs
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127
ArcFormats/CatSystem/ArcDAT.cs
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@ -0,0 +1,127 @@
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//! \file ArcDAT.cs
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//! \date 2019 Mar 11
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//! \brief Cat System resource archive.
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//
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// Copyright (C) 2019 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 System.Text;
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namespace GameRes.Formats.CatSystem
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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 "DAT/CSPACK"; } }
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public override string Description { get { return "Cat System resource archive"; } }
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public override uint Signature { get { return 0x61507343; } } // 'CsPack2'
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public override bool IsHierarchic { get { return false; } }
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public override bool CanWrite { get { return false; } }
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public override ArcFile TryOpen (ArcView file)
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{
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if (!file.View.AsciiEqual (0, "CsPack2"))
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return null;
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uint data_offset = file.View.ReadUInt32 (8);
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const int entry_size = 24;
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int count = (int)(data_offset - 12) / entry_size;
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if (!IsSaneCount (count))
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return null;
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var dir = new List<Entry> (count);
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uint next_offset = data_offset;
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var name_decoder = new CsNameDecryptor (0x1E);
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var entry_buffer = new byte[entry_size];
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int index_pos = 12;
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for (int i = 0; i < count; ++i)
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{
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file.View.Read (index_pos, entry_buffer, 0, entry_size);
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var name = name_decoder.Decrypt (entry_buffer);
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var entry = Create<Entry> (name);
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entry.Offset = next_offset;
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next_offset = entry_buffer.ToUInt32 (0)
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^ entry_buffer.ToUInt32 (4)
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^ entry_buffer.ToUInt32 (entry_size - 4);
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entry.Size = (uint)(next_offset - entry.Offset);
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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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index_pos += entry_size;
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}
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return new ArcFile (file, this, dir);
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}
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}
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internal class CsNameDecryptor
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{
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int m_name_length;
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byte[] m_buffer;
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StringBuilder m_name;
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public CsNameDecryptor (int name_length)
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{
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m_name_length = name_length;
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m_buffer = new byte[m_name_length];
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m_name = new StringBuilder (m_name_length);
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}
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public string Decrypt (byte[] buffer)
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{
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int length = m_name_length / 6 * 4;
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int dst = 0;
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for (int pos = 0; pos < length; pos += 4)
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{
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uint num = buffer.ToUInt32 (pos);
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for (int i = 5; i >= 0; --i)
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{
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uint val = num % 40;
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num /= 40;
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m_buffer[dst+i] = (byte)val;
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}
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dst += 6;
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}
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m_name.Clear();
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AppendChars (0, m_name_length - 4);
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if (m_buffer[0x10] != 0)
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{
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m_name.Append ('.');
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AppendChars (0x10, 3);
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}
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return m_name.ToString();
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}
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const string Alphabet = "_0123456789abcdefghijklmnopqrstuvwxyz_";
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void AppendChars (int pos, int length)
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{
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for (int i = 0; i < length; ++i)
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{
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if (0 == m_buffer[pos+i])
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break;
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m_name.Append (Alphabet[m_buffer[pos+i]]);
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}
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}
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}
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}
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