//! \file ArcMPK.cs //! \date 2018 Aug 11 //! \brief Stdio Tako resource archive. // // Copyright (C) 2018 by morkt // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to // deal in the Software without restriction, including without limitation the // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or // sell copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS // IN THE SOFTWARE. // using System.Collections.Generic; using System.ComponentModel.Composition; using System.IO; using System.Linq; namespace GameRes.Formats.Tako { [Export(typeof(ArchiveFormat))] public class MpkOpener : ArchiveFormat { public override string Tag { get { return "MPK/HG"; } } public override string Description { get { return "Studio Tako resource archive"; } } public override uint Signature { get { return 0x502D4748; } } // 'HG-P' public override bool IsHierarchic { get { return false; } } public override bool CanWrite { get { return false; } } public MpkOpener () { Signatures = new uint[] { 0x502D4748, 0x572D4748 }; } public override ArcFile TryOpen (ArcView file) { int count = file.View.ReadInt32 (4); if (!IsSaneCount (count) || VFS.IsPathEqualsToFileName (file.Name, "00.mpk")) return null; var list_name = VFS.ChangeFileName (file.Name, "00.mpk"); List<string> filelist; if (VFS.FileExists (list_name)) { using (var s = VFS.OpenStream (list_name)) using (var xs = new XoredStream (s, 0xA)) using (var reader = new StreamReader (xs, Encodings.cp932)) { filelist = new List<string> (count); string filename; while ((filename = reader.ReadLine()) != null) filelist.Add (filename); } } else { var base_name = Path.GetFileNameWithoutExtension (file.Name); filelist = Enumerable.Range (0, count).Select (x => string.Format ("{0}#{1:D4}", base_name, x)).ToList(); } bool has_sizes = file.View.ReadByte (3) != 'P'; uint index_offset = 8; uint record_size = has_sizes ? 8u : 4u; var dir = new List<Entry> (count); for (int i = 0; i < count; ++i) { var entry = FormatCatalog.Instance.Create<Entry> (filelist[i]); entry.Offset = file.View.ReadUInt32 (index_offset); if (has_sizes) { entry.Size = file.View.ReadUInt32 (index_offset+4); if (!entry.CheckPlacement (file.MaxOffset)) return null; } else if (entry.Offset > file.MaxOffset) return null; dir.Add (entry); index_offset += record_size; } if (!has_sizes) { for (int i = 1; i < count; ++i) { dir[i-1].Size = (uint)(dir[i].Offset - dir[i-1].Offset); } dir[dir.Count-1].Size = (uint)(file.MaxOffset - dir[dir.Count-1].Offset); } return new ArcFile (file, this, dir); } public override IImageDecoder OpenImage (ArcFile arc, Entry entry) { var header = new byte[2] { (byte)'B', (byte)'M' }; Stream input = arc.File.CreateStream (entry.Offset, entry.Size); input = new PrefixStream (header, input); var bin = new BinaryStream (input, entry.Name); try { return new ImageFormatDecoder (bin); } catch { bin.Dispose(); throw; } } } }