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implemented DAI_SYSTEM resource archives.
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morkt
parent
33ffb0da6f
commit
dabed60304
@ -118,6 +118,7 @@
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<Compile Include="Cyberworks\ArcApp.cs" />
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<Compile Include="Cyberworks\ArcP8.cs" />
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<Compile Include="Cyberworks\ImageTB1.cs" />
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<Compile Include="DaiSystem\ArcPAC.cs" />
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<Compile Include="DirectDraw\DxtDecoder.cs" />
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<Compile Include="elf\ArcAi5DAT.cs" />
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<Compile Include="elf\ImageRMT.cs" />
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204
ArcFormats/DaiSystem/ArcPAC.cs
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204
ArcFormats/DaiSystem/ArcPAC.cs
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@ -0,0 +1,204 @@
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//! \file ArcPAC.cs
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//! \date 2018 Jan 11
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//! \brief DAI system 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.Diagnostics;
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using System.IO;
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using System.Linq;
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using GameRes.Utility;
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namespace GameRes.Formats.DaiSystem
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{
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[Export(typeof(ArchiveFormat))]
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public class PacOpener : ArchiveFormat
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{
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public override string Tag { get { return "PAC/DAI"; } }
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public override string Description { get { return "DAI system resource archive"; } }
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public override uint Signature { get { return 0x5F494144; } } // 'DAI_SYSTEM_01000'
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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 override ArcFile TryOpen (ArcView file)
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{
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if (!file.View.AsciiEqual (4, "SYSTEM_01000"))
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return null;
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int count = Binary.BigEndian (file.View.ReadUInt16 (0x10));
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if (!IsSaneCount (count))
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return null;
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uint index_size = Binary.BigEndian (file.View.ReadUInt32 (0x12));
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var index = file.View.ReadBytes (0x16, index_size);
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for (int i = 0; i < index.Length; ++i)
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index[i] -= (byte)(i + 0x28);
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int index_offset = 0;
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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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int name_end = Array.IndexOf<byte> (index, (byte)',', index_offset);
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if (-1 == name_end)
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return null;
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var name = Encodings.cp932.GetString (index, index_offset, name_end - index_offset);
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index_offset = name_end + 1;
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var entry = FormatCatalog.Instance.Create<Entry> (name);
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entry.Offset = BigEndian.ToUInt32 (index, index_offset);
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index_offset += 5;
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dir.Add (entry);
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}
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for (int i = 1; i < dir.Count; ++i)
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{
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var entry = dir[i-1];
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entry.Size = (uint)(dir[i].Offset - entry.Offset);
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if (!entry.CheckPlacement (file.MaxOffset))
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return null;
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}
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dir[dir.Count-1].Size = (uint)(file.MaxOffset - dir[dir.Count-1].Offset);
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DetectFileTypes (file, dir);
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return new ArcFile (file, this, dir);
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}
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void DetectFileTypes (ArcView file, List<Entry> dir)
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{
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foreach (var entry in dir.Where (e => string.IsNullOrEmpty (e.Type)))
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{
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uint signature = file.View.ReadUInt32 (entry.Offset);
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if (0x05304148 == signature)
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{
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entry.Type = "image";
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continue;
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}
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else if (0x304148 == (signature & 0xFFFFFF))
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{
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uint encryption = file.View.ReadUInt32 (entry.Offset+8);
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long offset = entry.Offset + 0x10 + (signature >> 24);
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if (0 != encryption)
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{
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if (4 == encryption)
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{
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uint bits = Binary.BigEndian (file.View.ReadUInt32 (offset + 8));
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if (bits > entry.Size)
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continue;
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if (file.View.AsciiEqual (offset+12+bits, "BM"))
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{
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entry.ChangeType (ImageFormat.Bmp);
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}
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else if (file.View.AsciiEqual (entry.Offset+entry.Size-0x12, "TRUEVISION"))
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{
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entry.ChangeType (ImageFormat.Tga);
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}
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}
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continue;
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}
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signature = file.View.ReadUInt32 (offset);
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}
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entry.ChangeType (AutoEntry.DetectFileType (signature));
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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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if (!arc.File.View.AsciiEqual (entry.Offset, "HA0"))
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return base.OpenEntry (arc, entry);
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byte header_length = arc.File.View.ReadByte (entry.Offset+3);
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uint ha0_header_length = 0x10u + header_length;
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if (ha0_header_length >= entry.Size)
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return base.OpenEntry (arc, entry);
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uint unpacked_size = Binary.BigEndian (arc.File.View.ReadUInt32 (entry.Offset+4));
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uint pattern = arc.File.View.ReadUInt32 (entry.Offset+8);
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var header = arc.File.View.ReadBytes (entry.Offset+0x10, header_length);
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var input = arc.File.View.ReadBytes (entry.Offset + ha0_header_length, entry.Size - ha0_header_length);
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while (pattern != 0)
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{
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uint code = pattern >> 24;
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switch (code)
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{
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case 0: break;
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case 2: input = Decrypt2 (input); break;
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case 3: input = Decrypt3 (input); break;
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case 4: input = Unpack4 (input); break;
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default:
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Trace.WriteLine (string.Format ("Unknown encryption method ({0})", code), "[DAI_SYSTEM]");
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return base.OpenEntry (arc, entry);
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}
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pattern <<= 8;
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}
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return new BinMemoryStream (input, entry.Name);
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}
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byte[] Decrypt2 (byte[] input)
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{
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var output = new byte[input.Length];
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int src = 0;
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for (int i = 0; i < 3; ++i)
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{
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for (int dst = i; dst < output.Length; dst += 3)
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output[dst] = input[src++];
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}
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return output;
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}
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byte[] Decrypt3 (byte[] input)
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{
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for (int i = 1; i < input.Length; ++i)
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{
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input[i] += input[i-1];
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}
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return input;
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}
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byte[] Unpack4 (byte[] input)
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{
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int unpacked_size = BigEndian.ToInt32 (input, 0);
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var output = new byte[unpacked_size];
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int ctl_bits = BigEndian.ToInt32 (input, 4);
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int ctl_bytes = BigEndian.ToInt32 (input, 8);
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int ctl = 12;
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int src = 12 + ctl_bytes;
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int dst = 0;
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int bits = 2;
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while (dst < output.Length)
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{
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bits >>= 1;
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if (1 == bits)
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{
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bits = input[ctl++] | 0x100;
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}
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if (0 == (bits & 1))
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{
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output[dst++] = input[src++];
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}
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else
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{
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int offset = input[src++];
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int count = input[src++];
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Binary.CopyOverlapped (output, dst-offset, dst, count);
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dst += count;
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}
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}
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return output;
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}
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}
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}
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