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(Unity): implemented 'resources.assets' archives.

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This commit is contained in:
morkt 2017-12-15 01:16:16 +04:00
parent 59924e0285
commit f071bef660
4 changed files with 287 additions and 4 deletions
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1
ArcFormats/ArcFormats.csproj
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@ -571,6 +571,7 @@
<Compile Include="ShiinaRio\ArcS25.cs" />
<Compile Include="ArcSAF.cs" />
<Compile Include="BlackCyc\ArcVPK.cs" />
<Compile Include="Unity\ArcASSET.cs" />
<Compile Include="Unity\ArcUnityFS.cs" />
<Compile Include="Unity\Asset.cs" />
<Compile Include="Unity\AssetReader.cs" />

264
ArcFormats/Unity/ArcASSET.cs Normal file
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@ -0,0 +1,264 @@
//! \file ArcASSET.cs
//! \date 2017 Nov 22
//! \brief Unity assets archive.
//
// Copyright (C) 2017 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 System.Linq;
using GameRes.Utility;
namespace GameRes.Formats.Unity
{
[Export(typeof(ArchiveFormat))]
public class UnityAssetOpener : ArchiveFormat
{
public override string Tag { get { return "ASSETS/UNITY"; } }
public override string Description { get { return "Unity game engine assets archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public override ArcFile TryOpen (ArcView file)
{
uint header_size = Binary.BigEndian (file.View.ReadUInt32 (0));
uint file_size = Binary.BigEndian (file.View.ReadUInt32 (4));
if (file_size != file.MaxOffset || header_size > file_size || 0 == header_size)
return null;
using (var stream = file.CreateStream())
using (var input = new AssetReader (stream))
{
var index = new ResourcesAssetsDeserializer (file);
var dir = index.Parse (input);
if (null == dir || 0 == dir.Count)
return null;
var res_map = index.GenerateResourceMap (dir);
return new UnityResourcesAsset (file, this, dir, res_map);
}
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
var uarc = (UnityResourcesAsset)arc;
var uent = (AssetEntry)entry;
if (null == uent.Bundle || !uarc.ResourceMap.ContainsKey (uent.Bundle.Name))
return arc.File.CreateStream (entry.Offset, entry.Size);
var bundle = uarc.ResourceMap[uent.Bundle.Name];
return bundle.CreateStream (entry.Offset, entry.Size);
}
public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
{
var aent = entry as AssetEntry;
if (null == aent || aent.AssetObject.TypeId != 28)
return base.OpenImage (arc, entry);
var obj = aent.AssetObject;
using (var stream = arc.File.CreateStream (obj.Offset, obj.Size))
using (var reader = new AssetReader (stream))
{
reader.SetupReaders (obj.Asset);
var tex = new Texture2D();
tex.Load (reader);
var input = OpenEntry (arc, entry);
try
{
tex.m_Data = new byte[entry.Size];
input.Read (tex.m_Data, 0, tex.m_Data.Length);
var bin_input = BinaryStream.FromStream (input, entry.Name);
var tex_reader = new AssetReader (bin_input);
tex_reader.SetupReaders (obj.Asset);
return new Texture2DDecoder (tex, tex_reader);
}
catch
{
input.Dispose();
throw;
}
}
}
}
internal class UnityResourcesAsset : ArcFile
{
public readonly IDictionary<string, ArcView> ResourceMap;
public UnityResourcesAsset (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, IDictionary<string, ArcView> res_map)
: base (arc, impl, dir)
{
ResourceMap = res_map;
}
#region IDisposable Members
bool m_disposed = false;
protected override void Dispose (bool disposing)
{
if (!m_disposed)
{
if (disposing)
{
foreach (var res in ResourceMap.Values)
{
res.Dispose();
}
}
m_disposed = true;
}
}
#endregion
}
internal class ResourcesAssetsDeserializer
{
string m_res_name;
Dictionary<string, BundleEntry> m_bundles;
public ResourcesAssetsDeserializer (ArcView file)
{
m_res_name = file.Name;
}
public List<Entry> Parse (AssetReader input)
{
var asset = new Asset();
asset.Load (input);
var dir = new List<Entry>();
m_bundles = new Dictionary<string, BundleEntry>();
var used_names = new HashSet<string>();
foreach (var obj in asset.Objects.Where (o => o.TypeId > 0))
{
input.Position = obj.Offset;
AssetEntry entry = null;
switch (obj.TypeId)
{
default:
break;
case 28: // Texture2D
{
var tex = new Texture2D();
tex.Load (input);
if (tex.m_StreamData != null && !string.IsNullOrEmpty (tex.m_StreamData.Path))
{
entry = new AssetEntry {
Name = tex.m_Name,
Type = "image",
Offset = tex.m_StreamData.Offset,
Size = tex.m_StreamData.Size,
Bundle = GetBundle (tex.m_StreamData.Path),
AssetObject = obj,
};
}
break;
}
case 83: // AudioClip
{
var clip = new AudioClip();
clip.Load (input);
if (!string.IsNullOrEmpty (clip.m_Source))
{
entry = new AssetEntry {
Name = clip.m_Name,
Type = "audio",
Offset = clip.m_Offset,
Size = (uint)clip.m_Size,
Bundle = GetBundle (clip.m_Source),
AssetObject = obj,
};
}
break;
}
case 49: // TextAsset
{
var name = input.ReadString();
input.Align();
uint size = input.ReadUInt32();
entry = new AssetEntry {
Name = name,
Offset = input.Position,
Size = size,
AssetObject = obj,
};
break;
}
case 128: // Font
{
entry = new AssetEntry {
Offset = obj.Offset,
Size = obj.Size,
AssetObject = obj,
};
break;
}
}
if (entry != null)
{
if (string.IsNullOrEmpty (entry.Name)
entry.Name = string.Format ("{0:D4} [{1}]", obj.PathId, obj.TypeId);
else if (!used_names.Add (entry.Name))
entry.Name = string.Format ("{0}-{1}", entry.Name, obj.PathId);
dir.Add (entry);
}
}
return dir;
}
public Dictionary<string, ArcView> GenerateResourceMap (List<Entry> dir)
{
var res_map = new Dictionary<string, ArcView>();
var asset_dir = VFS.GetDirectoryName (m_res_name);
foreach (AssetEntry entry in dir)
{
if (null == entry.Bundle)
continue;
if (res_map.ContainsKey (entry.Bundle.Name))
continue;
var bundle_name = VFS.CombinePath (asset_dir, entry.Bundle.Name);
if (!VFS.FileExists (bundle_name))
{
entry.Bundle = null;
entry.Offset = entry.AssetObject.Offset;
entry.Size = entry.AssetObject.Size;
continue;
}
res_map[entry.Bundle.Name] = VFS.OpenView (bundle_name);
}
return res_map;
}
BundleEntry GetBundle (string path)
{
BundleEntry bundle;
if (!m_bundles.TryGetValue (path, out bundle))
{
bundle = new BundleEntry { Name = path };
m_bundles[path] = bundle;
}
return bundle;
}
}
}

18
ArcFormats/Unity/Asset.cs
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@ -124,7 +124,6 @@ namespace GameRes.Formats.Unity
Trace.WriteLine ("Unknown type id", obj.ClassId.ToString());
m_types[obj.TypeId] = null;
}
throw new ApplicationException (string.Format ("Unknwon type id {0}", obj.ClassId));
}
if (m_objects.ContainsKey (obj.PathId))
throw new ApplicationException (string.Format ("Duplicate asset object {0} (PathId: {1})", obj, obj.PathId));
@ -390,6 +389,7 @@ namespace GameRes.Formats.Unity
internal class AudioClip
{
public string m_Name;
public int m_LoadType;
public int m_Channels;
public int m_Frequency;
@ -407,7 +407,7 @@ namespace GameRes.Formats.Unity
public void Load (AssetReader reader)
{
var name = reader.ReadString();
m_Name = reader.ReadString();
reader.Align();
m_LoadType = reader.ReadInt32();
m_Channels = reader.ReadInt32();
@ -428,4 +428,18 @@ namespace GameRes.Formats.Unity
m_CompressionFormat = reader.ReadInt32();
}
}
internal class StreamingInfo
{
public uint Offset;
public uint Size;
public string Path;
public void Load (AssetReader reader)
{
Offset = reader.ReadUInt32();
Size = reader.ReadUInt32();
Path = reader.ReadString();
}
}
}

8
ArcFormats/Unity/AssetReader.cs
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@ -46,9 +46,13 @@ namespace GameRes.Formats.Unity
set { m_input.Position = value; }
}
public AssetReader (Stream input, string name)
public AssetReader (Stream input, string name) : this (BinaryStream.FromStream (input, name))
{
m_input = BinaryStream.FromStream (input, name);
}
public AssetReader (IBinaryStream input)
{
m_input = input;
SetupReaders (0, false);
}