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implemented Ail 'LNK2' archives.
This commit is contained in:
morkt
206
ArcFormats/Ail/ArcAil.cs
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206
ArcFormats/Ail/ArcAil.cs
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//! \file ArcAil.cs
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//! \date Mon Apr 20 21:21:49 2015
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//! \brief Ail resource archives.
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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.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.Ail
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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/Ail"; } }
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public override string Description { get { return "Ail 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 CanWrite { get { return false; } }
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public DatOpener ()
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{
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Extensions = new string[] { "dat", "snl" };
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}
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public override ArcFile TryOpen (ArcView file)
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{
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int count = file.View.ReadInt32 (0);
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if (!IsSaneCount (count))
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return null;
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var dir = ReadIndex (file, 4, count);
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if (null == dir)
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return null;
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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 pentry = entry as PackedEntry;
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if (null == pentry || !pentry.IsPacked)
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return input;
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using (input)
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{
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byte[] data = new byte[pentry.UnpackedSize];
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LzssUnpack (input, data);
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return new BinMemoryStream (data, entry.Name);
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}
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}
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internal List<Entry> ReadIndex (ArcView file, uint index_offset, int count)
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{
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var base_name = Path.GetFileNameWithoutExtension (file.Name);
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long offset = index_offset + count*4;
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if (offset >= file.MaxOffset)
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return null;
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var dir = new List<Entry> (count/2);
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for (int i = 0; i < count; ++i)
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{
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uint size = file.View.ReadUInt32 (index_offset);
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if (size != 0 && size != uint.MaxValue)
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{
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var entry = new PackedEntry
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{
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Name = string.Format ("{0}#{1:D5}", base_name, i),
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Offset = offset,
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Size = size,
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IsPacked = false,
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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 += size;
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}
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index_offset += 4;
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}
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if (0 == dir.Count)
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return null;
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DetectFileTypes (file, dir);
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return dir;
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}
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internal void DetectFileTypes (ArcView file, List<Entry> dir)
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{
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byte[] preview = new byte[16];
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byte[] sign_buf = new byte[4];
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foreach (PackedEntry entry in dir)
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{
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uint extra = 6;
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if (extra > entry.Size)
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continue;
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uint signature = file.View.ReadUInt32 (entry.Offset);
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if (1 == (signature & 0xFFFF))
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{
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entry.IsPacked = true;
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entry.UnpackedSize = file.View.ReadUInt32 (entry.Offset+2);
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}
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else if (0 == signature)
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{
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extra = 4;
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}
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entry.Offset += extra;
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entry.Size -= extra;
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if (entry.IsPacked)
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{
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file.View.Read (entry.Offset, preview, 0, (uint)preview.Length);
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using (var input = new MemoryStream (preview))
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{
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LzssUnpack (input, sign_buf);
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signature = LittleEndian.ToUInt32 (sign_buf, 0);
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}
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}
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else
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{
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signature = file.View.ReadUInt32 (entry.Offset);
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}
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if (0 != signature)
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SetEntryType (entry, signature);
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}
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}
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static void SetEntryType (Entry entry, uint signature)
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{
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var res = AutoEntry.DetectFileType (signature);
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if (null != res)
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entry.ChangeType (res);
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}
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/// <summary>
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/// Custom LZSS decompression with frame pre-initialization and reveresed control bits meaning.
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/// </summary>
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static void LzssUnpack (Stream input, byte[] output)
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{
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int frame_pos = 0xfee;
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byte[] frame = new byte[0x1000];
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for (int i = 0; i < frame_pos; ++i)
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frame[i] = 0x20;
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int dst = 0;
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int ctl = 0;
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while (dst < output.Length)
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{
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ctl >>= 1;
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if (0 == (ctl & 0x100))
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{
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ctl = input.ReadByte();
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if (-1 == ctl)
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break;
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ctl |= 0xff00;
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}
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if (0 == (ctl & 1))
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{
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int v = input.ReadByte();
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if (-1 == v)
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break;
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output[dst++] = (byte)v;
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frame[frame_pos++] = (byte)v;
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frame_pos &= 0xfff;
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}
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else
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{
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int offset = input.ReadByte();
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if (-1 == offset)
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break;
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int count = input.ReadByte();
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if (-1 == count)
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break;
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offset |= (count & 0xf0) << 4;
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count = (count & 0x0f) + 3;
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for (int i = 0; i < count; i++)
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{
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if (dst >= output.Length)
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break;
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byte v = frame[offset++];
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offset &= 0xfff;
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frame[frame_pos++] = v;
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frame_pos &= 0xfff;
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output[dst++] = v;
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}
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}
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}
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}
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}
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}
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58
ArcFormats/Ail/ArcLNK2.cs
Normal file
58
ArcFormats/Ail/ArcLNK2.cs
Normal file
@@ -0,0 +1,58 @@
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//! \file ArcLNK2.cs
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//! \date 2018 Jan 04
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//! \brief Ail resource archive.
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//
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// Copyright (C) 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.Collections.Generic;
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using System.ComponentModel.Composition;
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using System.IO;
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namespace GameRes.Formats.Ail
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{
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[Export(typeof(ArchiveFormat))]
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public class Lnk2Opener : DatOpener
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{
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public override string Tag { get { return "DAT/LNK2"; } }
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public override string Description { get { return "Ail resource archive"; } }
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public override uint Signature { get { return 0x324B4E4C; } } // 'LNK2'
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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 Lnk2Opener ()
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{
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Extensions = new string[] { "dat" };
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}
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public override ArcFile TryOpen (ArcView file)
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{
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int count = file.View.ReadInt32 (4)*2;
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if (!IsSaneCount (count))
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return null;
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var dir = ReadIndex (file, 8, count);
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if (null == dir)
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return null;
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return new ArcFile (file, this, dir);
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}
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}
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}
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