From c9425ed87603ff90145d53e900ddd68b619909bd Mon Sep 17 00:00:00 2001 From: morkt Date: Tue, 2 Jan 2018 20:24:15 +0400 Subject: [PATCH] implemented Maika BK archives. --- ArcFormats/ArcFormats.csproj | 1 + ArcFormats/Maika/ArcBK.cs | 150 +++++++++++++++++++++++++++++++++++ 2 files changed, 151 insertions(+) create mode 100644 ArcFormats/Maika/ArcBK.cs diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj index 26b14718..d311cf08 100644 --- a/ArcFormats/ArcFormats.csproj +++ b/ArcFormats/ArcFormats.csproj @@ -120,6 +120,7 @@ + diff --git a/ArcFormats/Maika/ArcBK.cs b/ArcFormats/Maika/ArcBK.cs new file mode 100644 index 00000000..6ca20902 --- /dev/null +++ b/ArcFormats/Maika/ArcBK.cs @@ -0,0 +1,150 @@ +//! \file ArcBK.cs +//! \date 2018 Jan 02 +//! \brief MAIKA 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 GameRes.Compression; + +namespace GameRes.Formats.Maika +{ + [Export(typeof(ArchiveFormat))] + public class BkOpener : ArchiveFormat + { + public override string Tag { get { return "DAT/BK"; } } + public override string Description { get { return "Maika resource archive"; } } + public override uint Signature { get { return 0; } } + public override bool IsHierarchic { get { return true; } } + public override bool CanWrite { get { return false; } } + + public override ArcFile TryOpen (ArcView file) + { + uint index_offset = file.View.ReadUInt32 (0); + uint index_size = file.View.ReadUInt32 (4); + if (index_offset+index_size != file.MaxOffset) + return null; + using (var input = file.CreateStream (index_offset, index_size)) + using (var packed = new PackedStream (input)) + using (var index = new BinaryStream (packed, file.Name)) + { + int count = index.ReadInt32(); + if (!IsSaneCount (count)) + return null; + var dir = new List (count); + for (int i = 0; i < count; ++i) + { + uint offset = index.ReadUInt32(); + uint size = index.ReadUInt32(); + uint unpacked_size = index.ReadUInt32(); + var name = index.ReadCString (0x104); + var entry = FormatCatalog.Instance.Create (name); + entry.Offset = offset; + entry.Size = size; + entry.UnpackedSize = unpacked_size; + if (!entry.CheckPlacement (file.MaxOffset)) + return null; + if (name.HasExtension (".gpt")) + entry.Type = "image"; + entry.IsPacked = entry.Size != entry.UnpackedSize; + dir.Add (entry); + } + return new ArcFile (file, this, dir); + } + } + + public override Stream OpenEntry (ArcFile arc, Entry entry) + { + Stream input = arc.File.CreateStream (entry.Offset, entry.Size); + var pent = entry as PackedEntry; + if (null == pent || !pent.IsPacked) + return input; + input = new PackedStream (input); + input = new LimitStream (input, pent.UnpackedSize); + if (entry.Name.HasExtension (".gpa")) + input = new XoredStream (input, 0xFF); + return input; + } + } + + internal class LzBitsDecompressor : Decompressor + { + MsbBitStream m_input; + + public override void Initialize (Stream input) + { + m_input = new MsbBitStream (input, true); + } + + protected override IEnumerator Unpack () + { + var frame = new byte[0x400]; + int frame_pos = 1; + for (;;) + { + int bit = m_input.GetNextBit(); + if (-1 == bit) + yield break; + if (bit != 0) + { + int v = m_input.GetBits (8); + if (-1 == v) + yield break; + m_buffer[m_pos++] = frame[frame_pos++ & 0x3FF] = (byte)v; + if (0 == --m_length) + yield return m_pos; + } + else + { + int offset = m_input.GetBits (10); + if (-1 == offset) + yield break; + int count = m_input.GetBits (5); + if (-1 == count) + yield break; + count += 2; + while (count-- > 0) + { + byte v = frame[offset++ & 0x3FF]; + m_buffer[m_pos++] = frame[frame_pos++ & 0x3FF] = v; + if (0 == --m_length) + yield return m_pos; + } + } + } + } + + #region IDisposable Members + bool m_disposed = false; + protected override void Dispose (bool disposing) + { + if (disposing && !m_disposed) + { + m_input.Dispose(); + m_disposed = true; + } + } + #endregion + } +}