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280 lines
11 KiB
C#
280 lines
11 KiB
C#
//! \file ArcPD.cs
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//! \date Thu Aug 14 19:10:02 2014
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//! \brief PD archive format implementation.
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//
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// Copyright (C) 2014 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.Linq;
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using System.Text;
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using GameRes.Formats.Properties;
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using GameRes.Formats.Strings;
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using GameRes.Utility;
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namespace GameRes.Formats.Fs
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{
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internal class PackPlusArchive : ArcFile
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{
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public PackPlusArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir)
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: base (arc, impl, dir)
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{
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}
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}
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public class PdOptions : ResourceOptions
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{
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public bool ScrambleContents { get; set; }
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}
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[Export(typeof(ArchiveFormat))]
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public class PdOpener : ArchiveFormat
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{
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public override string Tag { get { return "PD"; } }
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public override string Description { get { return arcStrings.PDDescription; } }
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public override uint Signature { get { return 0x6b636150; } } // Pack
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public override bool IsHierarchic { get { return false; } }
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public override bool CanCreate { get { return true; } }
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public override ArcFile TryOpen (ArcView file)
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{
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uint version = file.View.ReadUInt32 (4);
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if (0x796c6e4f != version && 0x73756c50 != version) // 'Only' || 'Plus'
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return null;
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uint count = file.View.ReadUInt32 (0x40);
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if (count > 0x0fffff || count * 0x90 >= file.MaxOffset)
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return null;
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bool encrypted = 0x73756c50 == version;
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long cur_offset = 0x48;
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var dir = new List<Entry> ((int)count);
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for (uint i = 0; i < count; ++i)
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{
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string name = file.View.ReadString (cur_offset, 0x80);
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var entry = FormatCatalog.Instance.CreateEntry (name);
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entry.Offset = file.View.ReadInt64 (cur_offset+0x80);
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entry.Size = file.View.ReadUInt32 (cur_offset+0x88);
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if (!entry.CheckPlacement (file.MaxOffset))
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return null;
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if (Path.GetExtension (name).Equals (".dsf", System.StringComparison.OrdinalIgnoreCase))
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entry.Type = "script";
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dir.Add (entry);
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cur_offset += 0x90;
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}
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return encrypted ? new PackPlusArchive (file, this, dir) : new ArcFile (file, this, dir);
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}
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public override Stream OpenEntry (ArcFile arc, Entry entry)
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{
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Stream input = arc.File.CreateStream (entry.Offset, entry.Size);
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if (arc is PackPlusArchive)
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{
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MemoryStream buffer;
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using (input)
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{
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buffer = new MemoryStream ((int)entry.Size);
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input.CopyTo (buffer);
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}
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var data = buffer.GetBuffer();
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for (uint i = 0; i < entry.Size; ++i)
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data[i] = (byte)~data[i];
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buffer.Position = 0;
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input = buffer;
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}
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return input;
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}
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public override ResourceOptions GetDefaultOptions ()
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{
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return new PdOptions { ScrambleContents = Settings.Default.PDScrambleContents };
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}
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public override object GetCreationWidget ()
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{
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return new GUI.CreatePDWidget();
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}
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public override void Create (Stream output, IEnumerable<Entry> list, ResourceOptions options,
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EntryCallback callback)
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{
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int file_count = list.Count();
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if (file_count > 0x4000)
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throw new InvalidFormatException (arcStrings.MsgTooManyFiles);
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if (null != callback)
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callback (file_count+2, null, null);
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int callback_count = 0;
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var pd_options = GetOptions<PdOptions> (options);
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using (var writer = new BinaryWriter (output, Encoding.ASCII, true))
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{
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writer.Write (Signature);
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if (pd_options.ScrambleContents)
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writer.Write ((uint)0x73756c50);
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else
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writer.Write ((uint)0x796c6e4f);
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output.Seek (0x38, SeekOrigin.Current);
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writer.Write (file_count);
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writer.Write ((int)0);
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long dir_offset = output.Position;
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if (null != callback)
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callback (callback_count++, null, arcStrings.MsgWritingIndex);
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var encoding = Encodings.cp932.WithFatalFallback();
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byte[] name_buf = new byte[0x80];
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int previous_size = 0;
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// first, write names only
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foreach (var entry in list)
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{
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string name = Path.GetFileName (entry.Name);
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try
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{
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int size = encoding.GetBytes (name, 0, name.Length, name_buf, 0);
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for (int i = size; i < previous_size; ++i)
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name_buf[i] = 0;
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previous_size = size;
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}
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catch (EncoderFallbackException X)
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{
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throw new InvalidFileName (entry.Name, arcStrings.MsgIllegalCharacters, X);
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}
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catch (ArgumentException X)
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{
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throw new InvalidFileName (entry.Name, arcStrings.MsgFileNameTooLong, X);
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}
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writer.Write (name_buf);
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writer.BaseStream.Seek (16, SeekOrigin.Current);
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}
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// now, write files and remember offset/sizes
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long current_offset = 0x240000 + dir_offset;
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output.Seek (current_offset, SeekOrigin.Begin);
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foreach (var entry in list)
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{
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if (null != callback)
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callback (callback_count++, entry, arcStrings.MsgAddingFile);
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entry.Offset = current_offset;
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using (var input = File.OpenRead (entry.Name))
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{
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var size = input.Length;
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if (size > uint.MaxValue)
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throw new FileSizeException();
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current_offset += size;
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entry.Size = (uint)size;
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if (pd_options.ScrambleContents)
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CopyScrambled (input, output);
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else
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input.CopyTo (output);
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}
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}
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if (null != callback)
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callback (callback_count++, null, arcStrings.MsgUpdatingIndex);
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// at last, go back to directory and write offset/sizes
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dir_offset += 0x80;
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foreach (var entry in list)
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{
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writer.BaseStream.Position = dir_offset;
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writer.Write (entry.Offset);
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writer.Write ((long)entry.Size);
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dir_offset += 0x90;
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}
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}
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}
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void CopyScrambled (Stream input, Stream output)
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{
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byte[] buffer = new byte[81920];
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for (;;)
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{
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int read = input.Read (buffer, 0, buffer.Length);
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if (0 == read)
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break;
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for (int i = 0; i < read; ++i)
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buffer[i] = (byte)~buffer[i];
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output.Write (buffer, 0, read);
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}
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}
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}
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[Export(typeof(ArchiveFormat))]
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public class FlyingShinePdOpener : ArchiveFormat
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{
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public override string Tag { get { return "PD/2"; } }
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public override string Description { get { return "Flying Shine resource archive version 2"; } }
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public override uint Signature { get { return 0x69796c46; } } // 'Flyi'
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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 FlyingShinePdOpener ()
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{
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Extensions = new string[] { "pd" };
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}
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public override ArcFile TryOpen (ArcView file)
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{
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if (!file.View.AsciiEqual (4, "ngShinePDFile\0"))
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return null;
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uint crc = file.View.ReadUInt16 (0x12);
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byte key = file.View.ReadByte (0x14);
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int count = file.View.ReadInt32 (0x1c);
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if (count < 0 || count > 0xfffff)
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return null;
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uint index_size = (uint)(0x30 * count);
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if (index_size > file.View.Reserve (0x20, index_size))
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return null;
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var enc = Encodings.cp932;
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var buf = new byte[0x30];
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long index_offset = 0x20;
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var dir = new List<Entry> (count);
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for (uint i = 0; i < count; ++i)
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{
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file.View.Read (index_offset, buf, 0, 0x30);
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DecodeEntry (buf, key);
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int len = Array.IndexOf (buf, (byte)0);
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if (len <= 0 || len >= 0x24)
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return null;
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string name = enc.GetString (buf, 0, len);
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var entry = FormatCatalog.Instance.CreateEntry (name);
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uint shift = LittleEndian.ToUInt32 (buf, 0x24);
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entry.Offset = LittleEndian.ToUInt32 (buf, 0x28) - shift;
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entry.Size = LittleEndian.ToUInt32 (buf, 0x2c) - shift;
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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_offset += 0x30;
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}
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return new ArcFile (file, this, dir);
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}
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void DecodeEntry (byte[] buf, byte key)
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{
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for (int i = 0; i < buf.Length; ++i)
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buf[i] ^= key;
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}
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}
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}
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