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Support the 'UnityFS' asset bundle type and a lot of change

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This commit is contained in:
Perfare
2016-08-02 23:11:14 +08:00
parent cb7601405c
commit 20e8d89f1a
38 changed files with 5320 additions and 10108 deletions
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118
Unity Studio/BundleFile.cs
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@ -10,9 +10,9 @@ namespace Unity_Studio
{
public class BundleFile
{
public int ver1;
public string ver2;
public string ver3;
public int format;
public string versionPlayer;
public string versionEngine;
public List<MemoryAssetsFile> MemoryAssetsFileList = new List<MemoryAssetsFile>();
public class MemoryAssetsFile
@ -40,17 +40,11 @@ namespace Unity_Studio
using (var inputStream = new MemoryStream(lz4buffer))
{
var decoder = new Lz4DecoderStream(inputStream);
filebuffer = new byte[uncompressedSize]; //is this ok?
for (;;)
{
int nRead = decoder.Read(filebuffer, 0, uncompressedSize);
if (nRead == 0)
break;
}
filebuffer = new byte[uncompressedSize];
decoder.Read(filebuffer, 0, uncompressedSize);
decoder.Dispose();
}
}
using (var b_Stream = new EndianStream(new MemoryStream(filebuffer), EndianType.BigEndian))
{
readBundle(b_Stream);
@ -67,14 +61,17 @@ namespace Unity_Studio
private void readBundle(EndianStream b_Stream)
{
var header = b_Stream.ReadStringToNull();
var signature = b_Stream.ReadStringToNull();
if (header == "UnityWeb" || header == "UnityRaw" || header == "\xFA\xFA\xFA\xFA\xFA\xFA\xFA\xFA")
if (signature == "UnityWeb" || signature == "UnityRaw" || signature == "\xFA\xFA\xFA\xFA\xFA\xFA\xFA\xFA")
{
ver1 = b_Stream.ReadInt32();
ver2 = b_Stream.ReadStringToNull();
ver3 = b_Stream.ReadStringToNull();
if (ver1 < 6) { int bundleSize = b_Stream.ReadInt32(); }
format = b_Stream.ReadInt32();
versionPlayer = b_Stream.ReadStringToNull();
versionEngine = b_Stream.ReadStringToNull();
if (format < 6)
{
int bundleSize = b_Stream.ReadInt32();
}
else
{
long bundleSize = b_Stream.ReadInt64();
@ -95,7 +92,7 @@ namespace Unity_Studio
}
b_Stream.Position = offset;
switch (header)
switch (signature)
{
case "\xFA\xFA\xFA\xFA\xFA\xFA\xFA\xFA": //.bytes
case "UnityWeb":
@ -115,15 +112,84 @@ namespace Unity_Studio
break;
}
}
}
else if (header == "UnityFS")
else if (signature == "UnityFS")
{
ver1 = b_Stream.ReadInt32();
ver2 = b_Stream.ReadStringToNull();
ver3 = b_Stream.ReadStringToNull();
long bundleSize = b_Stream.ReadInt64();
format = b_Stream.ReadInt32();
versionPlayer = b_Stream.ReadStringToNull();
versionEngine = b_Stream.ReadStringToNull();
if (format == 6)
{
var bundleSize = b_Stream.ReadInt64();
int compressedSize = b_Stream.ReadInt32();
int uncompressedSize = b_Stream.ReadInt32();
int unknown = b_Stream.ReadInt32();//Hmm...
var entryinfoBytes = b_Stream.ReadBytes(compressedSize);
EndianStream entryinfo;
if (uncompressedSize > compressedSize)
{
byte[] uncompressedBytes = new byte[uncompressedSize];
using (var mstream = new MemoryStream(entryinfoBytes))
{
var decoder = new Lz4DecoderStream(mstream);
decoder.Read(uncompressedBytes, 0, uncompressedSize);
decoder.Dispose();
}
entryinfo = new EndianStream(new MemoryStream(uncompressedBytes), EndianType.BigEndian);
}
else
{
entryinfo = new EndianStream(new MemoryStream(entryinfoBytes), EndianType.BigEndian);
}
using (entryinfo)
{
entryinfo.Position = 0x10;
int blockcount = entryinfo.ReadInt32();
EndianStream assetsData;
var assetsDatam = new MemoryStream();
for (int i = 0; i < blockcount; i++)
{
uncompressedSize = entryinfo.ReadInt32();
compressedSize = entryinfo.ReadInt32();
var compressedBytes = b_Stream.ReadBytes(compressedSize);
if (uncompressedSize > compressedSize)
{
var uncompressedBytes = new byte[uncompressedSize];
using (var mstream = new MemoryStream(compressedBytes))
{
var decoder = new Lz4DecoderStream(mstream);
decoder.Read(uncompressedBytes, 0, uncompressedSize);
decoder.Dispose();
}
assetsDatam.Write(uncompressedBytes, 0, uncompressedSize);
}
else
{
assetsDatam.Write(compressedBytes, 0, compressedSize);
}
unknown = entryinfo.ReadInt16();
}
//assetsDatam.Capacity = (int)assetsDatam.Length;
assetsData = new EndianStream(assetsDatam, EndianType.BigEndian);
using (assetsData)
{
var entryinfo_count = entryinfo.ReadInt32();
for (int i = 0; i < entryinfo_count; i++)
{
MemoryAssetsFile memFile = new MemoryAssetsFile();
var entryinfo_offset = entryinfo.ReadInt64();
var entryinfo_size = entryinfo.ReadInt64();
unknown = entryinfo.ReadInt32();
memFile.fileName = entryinfo.ReadStringToNull();
assetsData.Position = entryinfo_offset;
byte[] buffer = new byte[entryinfo_size];
assetsData.Read(buffer, 0, (int)entryinfo_size);
memFile.memStream = new MemoryStream(buffer);
MemoryAssetsFileList.Add(memFile);
}
}
}
}
}
}