mirror of
https://github.com/crskycode/GARbro.git
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378 lines
14 KiB
C#
378 lines
14 KiB
C#
//! \file ArcKogado.cs
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//! \date Sun Aug 24 22:01:05 2014
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//! \brief Hypatia game engine archive implementation.
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//
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// Copyright (C) 2014-2018 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.Collections.Generic;
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using System.ComponentModel.Composition;
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using System.Diagnostics;
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using System.Text;
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using GameRes.Formats.Kogado;
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using GameRes.Formats.Strings;
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using GameRes.Utility;
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namespace GameRes.Formats.Hypatia
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{
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public class HypEntry : PackedEntry
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{
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// 0 : Not compressed
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// 1 : Mariel compression
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// 2 : Cocotte compression
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// 3 : Xor 0xff encryption
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public byte CompressionType;
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public bool HasCheckSum;
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public ushort CheckSum;
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public long FileTime;
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}
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[Export(typeof(ArchiveFormat))]
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public class PakOpener : ArchiveFormat
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{
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public override string Tag { get { return "PAK/HyPack"; } }
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public override string Description { get { return arcStrings.KogadoDescription; } }
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public override uint Signature { get { return 0x61507948; } } // 'HyPa'
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public override bool IsHierarchic { get { return false; } }
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public override bool CanWrite { get { return true; } }
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public PakOpener ()
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{
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Extensions = new string[] { "pak", "dat" };
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ContainedFormats = new[] {
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"PNG", "BMP", "JPEG", "WBM/HYPATIA",
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"OGG", "WAV", "ADP/HYPATIA",
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"TXT", "SCR"
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};
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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 (0, "HyPack"))
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return null;
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int version = file.View.ReadUInt16 (6);
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int entry_size;
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switch (version)
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{
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case 0x100: entry_size = 32; break;
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case 0x200: entry_size = 40; break;
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case 0x300:
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case 0x301: entry_size = 48; break;
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default: return null;
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}
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long index_offset = 0x10 + file.View.ReadUInt32 (8);
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if (index_offset >= file.MaxOffset)
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return null;
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int entry_count = file.View.ReadInt32 (12);
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if (entry_count <= 0 || entry_count > 0xfffff)
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return null;
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uint index_size = (uint)(entry_count * entry_size);
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if (index_size > file.View.Reserve (index_offset, index_size))
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return null;
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long data_offset = 0x10;
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var dir = new List<Entry> (entry_count);
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for (int i = 0; i < entry_count; ++i)
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{
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string name = file.View.ReadString (index_offset, 0x15);
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string ext = file.View.ReadString (index_offset+0x15, 3);
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if (0 == name.Length)
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name = i.ToString ("D5");
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if (0 != ext.Length)
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name += '.'+ext;
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var entry = Create<HypEntry> (name);
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entry.Offset = data_offset + file.View.ReadUInt32 (index_offset + 0x18);
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if (version >= 0x200)
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{
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entry.UnpackedSize = file.View.ReadUInt32 (index_offset + 0x1c);
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entry.Size = file.View.ReadUInt32 (index_offset + 0x20);
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entry.CompressionType = file.View.ReadByte (index_offset + 0x24);
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entry.IsPacked = 0 != entry.CompressionType;
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if (version >= 0x300)
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{
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entry.HasCheckSum = 0 != file.View.ReadByte (index_offset + 0x25);
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entry.CheckSum = file.View.ReadUInt16 (index_offset + 0x26);
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entry.FileTime = file.View.ReadInt64 (index_offset + 0x28);
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}
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}
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else
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entry.Size = file.View.ReadUInt32 (index_offset + 0x1c);
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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 += entry_size;
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}
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return 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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var input = arc.File.CreateStream (entry.Offset, entry.Size);
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var packed_entry = entry as HypEntry;
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if (null == packed_entry || !packed_entry.IsPacked)
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return input;
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if (packed_entry.CompressionType > 3)
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{
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Trace.WriteLine (string.Format ("{1}: Unknown compression type {0}",
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packed_entry.CompressionType, packed_entry.Name),
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"Kogado.PakOpener.OpenEntry");
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return input;
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}
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if (3 == packed_entry.CompressionType)
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return new InputCryptoStream (input, new NotTransform());
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try
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{
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if (2 == packed_entry.CompressionType)
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{
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var decoded = new MemoryStream ((int)packed_entry.UnpackedSize);
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try
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{
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var cocotte = new CocotteEncoder();
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if (!cocotte.Decode (input, decoded))
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throw new InvalidFormatException ("Invalid Cocotte-encoded stream");
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decoded.Position = 0;
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return decoded;
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}
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catch
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{
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decoded.Dispose();
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throw;
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}
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}
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// if (1 == packed_entry.CompressionType)
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var unpacked = new byte[packed_entry.UnpackedSize];
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var mariel = new MarielEncoder();
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mariel.Unpack (input, unpacked, unpacked.Length);
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return new BinMemoryStream (unpacked, entry.Name);
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}
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finally
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{
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input.Dispose();
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}
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}
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internal class OutputEntry : HypEntry
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{
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public byte[] IndexName;
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public byte[] IndexExt;
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}
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// files inside archive are aligned to 0x10 boundary.
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// to convert DateTime structure into entry time:
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// entry.FileTime = file_info.CreationTimeUtc.Ticks;
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//
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// last two bytes of archive is CRC16 of the whole file
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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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const long data_offset = 0x10;
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var encoding = Encodings.cp932.WithFatalFallback();
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int callback_count = 0;
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var output_list = new List<OutputEntry> (list.Count());
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foreach (var entry in list)
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{
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try
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{
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string name = Path.GetFileNameWithoutExtension (entry.Name);
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string ext = Path.GetExtension (entry.Name);
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byte[] name_buf = new byte[0x15];
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byte[] ext_buf = new byte[3];
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encoding.GetBytes (name, 0, name.Length, name_buf, 0);
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if (!string.IsNullOrEmpty (ext))
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{
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ext = ext.TrimStart ('.').ToLowerInvariant();
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encoding.GetBytes (ext, 0, ext.Length, ext_buf, 0);
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}
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var out_entry = new OutputEntry
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{
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Name = entry.Name,
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IndexName = name_buf,
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IndexExt = ext_buf,
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};
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output_list.Add (out_entry);
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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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}
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if (null != callback)
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callback (output_list.Count+2, null, null);
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output.Position = data_offset;
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uint current_offset = 0;
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foreach (var entry in output_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.FileTime = File.GetCreationTimeUtc (entry.Name).Ticks;
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entry.Offset = current_offset;
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entry.CompressionType = 0;
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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 || current_offset + size + 0x0f > uint.MaxValue)
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throw new FileSizeException();
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entry.Size = (uint)size;
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entry.UnpackedSize = entry.Size;
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using (var checked_stream = new CheckedStream (output, new Crc16()))
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{
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input.CopyTo (checked_stream);
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entry.HasCheckSum = true;
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entry.CheckSum = (ushort)checked_stream.CheckSumValue;
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}
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current_offset += (uint)size + 0x0f;
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current_offset &= ~0x0fu;
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output.Position = data_offset + current_offset;
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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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uint index_offset = current_offset;
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using (var index = new BinaryWriter (output, encoding, true))
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{
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foreach (var entry in output_list)
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{
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index.Write (entry.IndexName);
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index.Write (entry.IndexExt);
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index.Write ((uint)entry.Offset);
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index.Write (entry.UnpackedSize);
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index.Write (entry.Size);
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index.Write (entry.CompressionType);
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index.Write (entry.HasCheckSum);
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index.Write (entry.CheckSum);
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index.Write (entry.FileTime);
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}
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index.BaseStream.Position = 0;
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index.Write (Signature);
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index.Write (0x03006b63);
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index.Write (index_offset);
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index.Write (output_list.Count);
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if (null != callback)
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callback (callback_count++, null, arcStrings.MsgCalculatingChecksum);
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output.Position = 0;
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using (var checked_stream = new CheckedStream (output, new Crc16()))
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{
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checked_stream.CopyTo (Stream.Null);
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index.Write ((ushort)checked_stream.CheckSumValue);
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}
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}
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}
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}
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internal class MarielEncoder
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{
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public void Unpack (IBinaryStream input, byte[] dest, int dest_size)
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{
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int out_pos = 0;
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uint bits = 0;
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while (dest_size > 0)
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{
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bool carry = 0 != (bits & 0x80000000);
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bits <<= 1;
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if (0 == bits)
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{
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bits = input.ReadUInt32();
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carry = 0 != (bits & 0x80000000);
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bits = (bits << 1) | 1u;
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}
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int b = input.ReadByte();
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if (-1 == b)
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break;
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if (!carry)
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{
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dest[out_pos++] = (byte)b;
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dest_size--;
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continue;
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}
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int offset = (b & 0x0f) + 1;
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int count = ((b >> 4) & 0x0f) + 1;
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if (0x0f == count)
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{
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b = input.ReadByte();
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if (-1 == b)
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break;
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count = (byte)b;
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}
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else if (count > 0x0f)
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{
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count = input.ReadUInt16();
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}
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if (offset >= 0x0b)
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{
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offset -= 0x0b;
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offset <<= 8;
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offset |= input.ReadUInt8();
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}
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if (count > dest_size)
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count = dest_size;
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int src = out_pos - offset;
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if (src < 0 || src >= out_pos)
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break;
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Binary.CopyOverlapped (dest, src, out_pos, count);
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out_pos += count;
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dest_size -= count;
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}
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}
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}
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[Export(typeof(ResourceAlias))]
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[ExportMetadata("Extension", "SND")]
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[ExportMetadata("Target", "OGG")]
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public class SndFormat : ResourceAlias { }
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[Export(typeof(ResourceAlias))]
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[ExportMetadata("Extension", "WPN")]
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[ExportMetadata("Target", "TXT")]
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public class WpnFormat : ResourceAlias { }
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[Export(typeof(ResourceAlias))]
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[ExportMetadata("Extension", "WPS")]
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[ExportMetadata("Target", "SCR")]
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public class WpsFormat : ResourceAlias { }
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[Export(typeof(ResourceAlias))]
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[ExportMetadata("Extension", "TBL")]
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[ExportMetadata("Target", "SCR")]
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public class TblFormat : ResourceAlias { }
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[Export(typeof(ResourceAlias))]
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[ExportMetadata("Extension", "BGM")]
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[ExportMetadata("Target", "WAV")]
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public class BgmFormat : ResourceAlias { }
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}
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