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implemented Maika BK archives.
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@ -120,6 +120,7 @@
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<Compile Include="elf\ImageRMT.cs" />
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<Compile Include="HuffmanCompression.cs" />
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<Compile Include="Lambda\ArcLAX.cs" />
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<Compile Include="Maika\ArcBK.cs" />
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<Compile Include="Nexas\ArcTPF.cs" />
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<Compile Include="LiveMaker\ImageGALX.cs" />
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<Compile Include="Otemoto\ArcTLZ.cs" />
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150
ArcFormats/Maika/ArcBK.cs
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150
ArcFormats/Maika/ArcBK.cs
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//! \file ArcBK.cs
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//! \date 2018 Jan 02
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//! \brief MAIKA 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.Collections.Generic;
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using System.ComponentModel.Composition;
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using System.IO;
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using GameRes.Compression;
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namespace GameRes.Formats.Maika
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{
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[Export(typeof(ArchiveFormat))]
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public class BkOpener : ArchiveFormat
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{
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public override string Tag { get { return "DAT/BK"; } }
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public override string Description { get { return "Maika resource archive"; } }
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public override uint Signature { get { return 0; } }
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public override bool IsHierarchic { get { return true; } }
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public override bool CanWrite { get { return false; } }
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public override ArcFile TryOpen (ArcView file)
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{
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uint index_offset = file.View.ReadUInt32 (0);
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uint index_size = file.View.ReadUInt32 (4);
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if (index_offset+index_size != file.MaxOffset)
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return null;
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using (var input = file.CreateStream (index_offset, index_size))
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using (var packed = new PackedStream<LzBitsDecompressor> (input))
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using (var index = new BinaryStream (packed, file.Name))
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{
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int count = index.ReadInt32();
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if (!IsSaneCount (count))
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return null;
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var dir = new List<Entry> (count);
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for (int i = 0; i < count; ++i)
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{
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uint offset = index.ReadUInt32();
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uint size = index.ReadUInt32();
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uint unpacked_size = index.ReadUInt32();
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var name = index.ReadCString (0x104);
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var entry = FormatCatalog.Instance.Create<PackedEntry> (name);
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entry.Offset = offset;
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entry.Size = size;
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entry.UnpackedSize = unpacked_size;
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if (!entry.CheckPlacement (file.MaxOffset))
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return null;
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if (name.HasExtension (".gpt"))
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entry.Type = "image";
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entry.IsPacked = entry.Size != entry.UnpackedSize;
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dir.Add (entry);
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}
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return new ArcFile (file, this, dir);
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}
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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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var pent = entry as PackedEntry;
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if (null == pent || !pent.IsPacked)
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return input;
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input = new PackedStream<LzBitsDecompressor> (input);
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input = new LimitStream (input, pent.UnpackedSize);
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if (entry.Name.HasExtension (".gpa"))
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input = new XoredStream (input, 0xFF);
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return input;
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}
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}
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internal class LzBitsDecompressor : Decompressor
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{
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MsbBitStream m_input;
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public override void Initialize (Stream input)
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{
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m_input = new MsbBitStream (input, true);
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}
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protected override IEnumerator<int> Unpack ()
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{
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var frame = new byte[0x400];
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int frame_pos = 1;
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for (;;)
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{
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int bit = m_input.GetNextBit();
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if (-1 == bit)
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yield break;
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if (bit != 0)
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{
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int v = m_input.GetBits (8);
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if (-1 == v)
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yield break;
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m_buffer[m_pos++] = frame[frame_pos++ & 0x3FF] = (byte)v;
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if (0 == --m_length)
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yield return m_pos;
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}
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else
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{
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int offset = m_input.GetBits (10);
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if (-1 == offset)
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yield break;
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int count = m_input.GetBits (5);
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if (-1 == count)
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yield break;
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count += 2;
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while (count-- > 0)
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{
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byte v = frame[offset++ & 0x3FF];
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m_buffer[m_pos++] = frame[frame_pos++ & 0x3FF] = v;
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if (0 == --m_length)
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yield return m_pos;
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}
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}
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}
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}
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#region IDisposable Members
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bool m_disposed = false;
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protected override void Dispose (bool disposing)
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{
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if (disposing && !m_disposed)
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{
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m_input.Dispose();
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m_disposed = true;
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}
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}
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#endregion
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}
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}
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