AssetEntry ReadTextAsset(Stream input, UnityObject obj)
{
var script = obj.Type.Children.FirstOrDefault(f => f.Name == "m_Script");
if (null == script)
{
return(null);
}
using (var reader = obj.Open(input))
{
var name = reader.ReadString();
reader.Align();
uint size = reader.ReadUInt32();
var entry = new AssetEntry {
AssetObject = obj,
Offset = obj.Offset + reader.Position,
Size = size,
IsEncrypted = 0 != (script.Flags & 0x04000000),
};
if (entry.IsEncrypted)
{
uint signature = reader.ReadUInt32();
if (0x0D15F641 == signature)
{
entry.Type = "image";
}
else if (0x474E5089 == signature)
{
entry.Type = "image";
entry.IsEncrypted = false;
}
}
return(entry);
}
}
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 (0 == tex.m_DataLength)
{
if (asset.Tree.Version.StartsWith("2017.")) // "2017.2.0f3" || "2017.1.1p1"
{
input.ReadInt64();
}
var stream_data = new StreamingInfo();
stream_data.Load(input);
if (!string.IsNullOrEmpty(stream_data.Path))
{
entry = new AssetEntry {
Name = tex.m_Name,
Type = "image",
Offset = stream_data.Offset,
Size = stream_data.Size,
Bundle = GetBundle(stream_data.Path),
};
}
}
else
{
entry = new AssetEntry {
Name = tex.m_Name,
Type = "image",
Offset = obj.Offset,
Size = obj.Size,
};
}
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),
};
}
break;
}
case 49: // TextAsset
{
var name = input.ReadString();
input.Align();
uint size = input.ReadUInt32();
entry = new AssetEntry {
Name = name,
Offset = input.Position,
Size = size,
};
if (name.HasAnyOfExtensions("jpg", "png"))
{
entry.Type = "image";
}
break;
}
case 128: // Font
{
entry = new AssetEntry {
Offset = obj.Offset,
Size = obj.Size,
};
break;
}
}
if (entry != null)
{
entry.AssetObject = obj;
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 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),
};
}
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),
};
}
break;
}
case 49: // TextAsset
{
var name = input.ReadString();
input.Align();
uint size = input.ReadUInt32();
entry = new AssetEntry {
Name = name,
Offset = input.Position,
Size = size,
};
break;
}
case 128: // Font
{
entry = new AssetEntry {
Offset = obj.Offset,
Size = obj.Size,
};
break;
}
}
if (entry != null)
{
entry.AssetObject = obj;
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);
}
