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implemented Gx4Lib archives.
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morkt
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706add22ff
229
ArcFormats/Unity/Gx4Lib/ArcDAT.cs
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229
ArcFormats/Unity/Gx4Lib/ArcDAT.cs
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//! \file ArcDAT.cs
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//! \date 2018 Aug 30
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//! \brief Unity GX4Lib 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.ComponentModel.Composition;
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using System.IO;
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using System.Linq;
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using System.Windows.Media;
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using GameRes.Gx4Lib;
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using GameRes.Utility;
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namespace GameRes.Formats.Unity.Gx4Lib
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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/GX4LIB"; } }
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public override string Description { get { return "Unity GX4Lib 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 override ArcFile TryOpen (ArcView file)
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{
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uint index_size = file.View.ReadUInt32 (0);
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if (index_size <= 12 || index_size >= file.MaxOffset)
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return null;
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if (file.View.ReadInt32 (5) != 1 || file.View.ReadInt32 (9) != -1)
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return null;
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using (var hstream = file.CreateStream (4, index_size))
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{
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var pf = new PackageFile();
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var index = pf.Deserialize (hstream);
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if (null == index)
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return null;
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string type = "";
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if (index is PFAudioHeaders)
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type = "audio";
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else if (index is PFImageHeaders)
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type = "image";
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uint data_offset = index_size + 4;
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var dir = index.headers.Select (h => new PackedEntry {
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Name = h.FileName,
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Type = type,
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Offset = h.readStartBytePos + data_offset,
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Size = (uint)h.ByteLength
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} as Entry).ToList();
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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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if (arc.File.View.AsciiEqual (entry.Offset, "UnityRaw"))
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return OpenUnityRaw (arc, entry);
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var pent = (PackedEntry)entry;
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if (!pent.IsPacked)
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{
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byte id = arc.File.View.ReadByte (entry.Offset);
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uint packed_size = arc.File.View.ReadUInt32 (entry.Offset+1);
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if ((id & ~1) != 0x5E || packed_size != entry.Size)
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return base.OpenEntry (arc, entry);
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pent.IsPacked = 0 != (id & 1);
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pent.UnpackedSize = arc.File.View.ReadUInt32 (entry.Offset+5);
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}
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if (!pent.IsPacked)
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return arc.File.CreateStream (pent.Offset+9, pent.UnpackedSize);
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var data = new byte[pent.UnpackedSize];
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using (var input = arc.File.CreateStream (pent.Offset+9, pent.Size))
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QlzUnpack (input, data);
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return new BinMemoryStream (data, entry.Name);
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}
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public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
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{
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var input = arc.OpenBinaryEntry (entry);
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int length = (int)(input.Length - 0x10);
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if ((length & 3) != 0)
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return ImageFormatDecoder.Create (input);
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uint width = input.ReadUInt32();
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uint height = input.ReadUInt32();
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int buf_width = input.ReadInt32();
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int buf_height = input.ReadInt32();
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var info = new ImageMetaData { Width = width, Height = height, BPP = 32 };
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return new Gx4ImageDecoder (input, info);
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}
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Stream OpenUnityRaw (ArcFile arc, Entry entry)
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{
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using (var stream = arc.File.CreateStream (entry.Offset, entry.Size))
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using (var input = new AssetReader (stream))
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{
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var signature = input.ReadCString();
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if (signature != "UnityRaw")
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return base.OpenEntry (arc, entry);
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int format = input.ReadInt32();
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input.ReadCString();
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input.ReadCString();
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uint file_size = input.ReadUInt32();
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if (file_size != entry.Size)
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return base.OpenEntry (arc, entry);
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uint header_size = input.ReadUInt32();
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int entry_count = input.ReadInt32();
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int bundle_count = input.ReadInt32();
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if (entry_count != 1 || bundle_count != 1)
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return base.OpenEntry (arc, entry);
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input.Position = header_size;
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int count = input.ReadInt32();
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long asset_pos = input.Position;
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input.ReadCString(); // asset_name
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header_size = input.ReadUInt32();
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uint asset_size = input.ReadUInt32();
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long base_pos = asset_pos + header_size - 4;
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input.Position = base_pos;
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var index = new ResourcesAssetsDeserializer (arc.File);
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var dir = index.Parse (input, base_pos);
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if (null == dir || 0 == dir.Count)
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return base.OpenEntry (arc, entry);;
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return arc.File.CreateStream (entry.Offset + dir[0].Offset, dir[0].Size);
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}
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}
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void QlzUnpack (IBinaryStream input, byte[] output)
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{
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int dst = 0;
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uint bits = 1;
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int output_last = output.Length - 11;
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while (dst < output.Length)
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{
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if (1 == bits)
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{
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bits = input.ReadUInt32();
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}
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if ((bits & 1) == 1)
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{
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int ctl = input.PeekByte();
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int offset, count = 3;
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if ((ctl & 3) == 0)
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{
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offset = input.ReadUInt8() >> 2;
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}
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else if ((ctl & 2) == 0)
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{
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offset = input.ReadUInt16() >> 2;
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}
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else if ((ctl & 1) == 0)
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{
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offset = input.ReadUInt16() >> 6;
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count += ((ctl >> 2) & 0xF);
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}
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else if ((ctl & 0x7F) != 3)
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{
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offset = (input.ReadInt24() >> 7) & 0x1FFFF;
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count += ((ctl >> 2) & 0x1F) - 1;
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}
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else
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{
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uint v = input.ReadUInt32();
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offset = (int)(v >> 15);
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count += (int)((v >> 7) & 0xFF);
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}
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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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else
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{
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if (dst > output_last)
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break;
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output[dst++] = input.ReadUInt8();
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}
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bits >>= 1;
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}
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while (dst < output.Length)
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{
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if (1 == bits)
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{
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input.Seek (4, SeekOrigin.Current);
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bits = 0x80000000u;
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}
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output[dst++] = input.ReadUInt8();
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bits >>= 1;
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}
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}
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}
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internal class Gx4ImageDecoder : BinaryImageDecoder
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{
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public Gx4ImageDecoder (IBinaryStream input, ImageMetaData info) : base (input, info)
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{
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}
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protected override ImageData GetImageData ()
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{
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m_input.Position = 0x10;
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int stride = (int)Info.Width * 4;
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var pixels = m_input.ReadBytes (stride * (int)Info.Height);
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for (int i = 0; i < pixels.Length; i += 4)
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{
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byte t = pixels[i];
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pixels[i] = pixels[i+2];
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pixels[i+2] = t;
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}
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return ImageData.CreateFlipped (Info, PixelFormats.Bgra32, null, pixels, stride);
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}
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}
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}
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