mirror/AssetStudio
1
0
Fork 0
mirror of https://github.com/aelurum/AssetStudio.git synced 2025-05-27 22:00:23 -04:00
Code Issues Packages Projects Releases Wiki Activity

support blocksinfo at end of file

Browse Source
This commit is contained in:
Perfare 2016-10-15 19:53:51 +08:00
parent a831456242
commit 4eebbaa5ef
1 changed files with 81 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

134
Unity Studio/BundleFile.cs
View File

@ -123,80 +123,108 @@ namespace Unity_Studio
var bundleSize = b_Stream.ReadInt64(); var bundleSize = b_Stream.ReadInt64();
int compressedSize = b_Stream.ReadInt32(); int compressedSize = b_Stream.ReadInt32();
int uncompressedSize = b_Stream.ReadInt32(); int uncompressedSize = b_Stream.ReadInt32();
int flag = b_Stream.ReadInt32() & 0x3F; int flag = b_Stream.ReadInt32();
var entryinfoBytes = b_Stream.ReadBytes(compressedSize); byte[] blocksInfoBytes;
EndianStream entryinfo; if ((flag & 0x80) != 0)//at end of file
if (flag == 3)//LZ4
{ {
byte[] uncompressedBytes = new byte[uncompressedSize]; b_Stream.Position = b_Stream.BaseStream.Length - compressedSize;
using (var mstream = new MemoryStream(entryinfoBytes)) blocksInfoBytes = b_Stream.ReadBytes(compressedSize);
{ b_Stream.Position = 0x2E;
var decoder = new Lz4DecoderStream(mstream);
decoder.Read(uncompressedBytes, 0, uncompressedSize);
decoder.Dispose();
}
entryinfo = new EndianStream(new MemoryStream(uncompressedBytes), EndianType.BigEndian);
}
else if(flag == 1)//LZMA
{
entryinfo = new EndianStream(SevenZip.Compression.LZMA.SevenZipHelper.StreamDecompress(new MemoryStream(entryinfoBytes)), EndianType.BigEndian);
} }
else else
{ {
entryinfo = new EndianStream(new MemoryStream(entryinfoBytes), EndianType.BigEndian); blocksInfoBytes = b_Stream.ReadBytes(compressedSize);
} }
using (entryinfo) EndianStream blocksInfo;
switch (flag & 0x3F)
{ {
entryinfo.Position = 0x10; default:
int blockcount = entryinfo.ReadInt32(); case 0://None
EndianStream assetsData;
var assetsDatam = new MemoryStream();
for (int i = 0; i < blockcount; i++)
{
uncompressedSize = entryinfo.ReadInt32();
compressedSize = entryinfo.ReadInt32();
flag = entryinfo.ReadInt16() & 0x3F;
var compressedBytes = b_Stream.ReadBytes(compressedSize);
if (flag == 3)//LZ4
{ {
var uncompressedBytes = new byte[uncompressedSize]; blocksInfo = new EndianStream(new MemoryStream(blocksInfoBytes), EndianType.BigEndian);
using (var mstream = new MemoryStream(compressedBytes)) break;
}
case 1://LZMA
{
blocksInfo = new EndianStream(SevenZip.Compression.LZMA.SevenZipHelper.StreamDecompress(new MemoryStream(blocksInfoBytes)), EndianType.BigEndian);
break;
}
case 2://LZ4
case 3://LZ4HC
{
byte[] uncompressedBytes = new byte[uncompressedSize];
using (var mstream = new MemoryStream(blocksInfoBytes))
{ {
var decoder = new Lz4DecoderStream(mstream); var decoder = new Lz4DecoderStream(mstream);
decoder.Read(uncompressedBytes, 0, uncompressedSize); decoder.Read(uncompressedBytes, 0, uncompressedSize);
decoder.Dispose(); decoder.Dispose();
} }
assetsDatam.Write(uncompressedBytes, 0, uncompressedSize); blocksInfo = new EndianStream(new MemoryStream(uncompressedBytes), EndianType.BigEndian);
break;
} }
else if(flag == 1)//LZMA //case 4:LZHAM?
}
using (blocksInfo)
{
blocksInfo.Position = 0x10;
int blockcount = blocksInfo.ReadInt32();
EndianStream assetsData;
var assetsDataStream = new MemoryStream();
for (int i = 0; i < blockcount; i++)
{
uncompressedSize = blocksInfo.ReadInt32();
compressedSize = blocksInfo.ReadInt32();
flag = blocksInfo.ReadInt16();
var compressedBytes = b_Stream.ReadBytes(compressedSize);
switch (flag & 0x3F)
{ {
var uncompressedBytes = new byte[uncompressedSize]; default:
using (var mstream = new MemoryStream(compressedBytes)) case 0://None
{ {
var decoder = SevenZip.Compression.LZMA.SevenZipHelper.StreamDecompress(mstream, uncompressedSize); assetsDataStream.Write(compressedBytes, 0, compressedSize);
decoder.Read(uncompressedBytes, 0, uncompressedSize); break;
decoder.Dispose(); }
} case 1://LZMA
assetsDatam.Write(uncompressedBytes, 0, uncompressedSize); {
} var uncompressedBytes = new byte[uncompressedSize];
else using (var mstream = new MemoryStream(compressedBytes))
{ {
assetsDatam.Write(compressedBytes, 0, compressedSize); var decoder = SevenZip.Compression.LZMA.SevenZipHelper.StreamDecompress(mstream, uncompressedSize);
decoder.Read(uncompressedBytes, 0, uncompressedSize);
decoder.Dispose();
}
assetsDataStream.Write(uncompressedBytes, 0, uncompressedSize);
break;
}
case 2://LZ4
case 3://LZ4HC
{
var uncompressedBytes = new byte[uncompressedSize];
using (var mstream = new MemoryStream(compressedBytes))
{
var decoder = new Lz4DecoderStream(mstream);
decoder.Read(uncompressedBytes, 0, uncompressedSize);
decoder.Dispose();
}
assetsDataStream.Write(uncompressedBytes, 0, uncompressedSize);
break;
}
//case 4:LZHAM?
} }
} }
assetsData = new EndianStream(assetsDatam, EndianType.BigEndian); assetsData = new EndianStream(assetsDataStream, EndianType.BigEndian);
using (assetsData) using (assetsData)
{ {
var entryinfo_count = entryinfo.ReadInt32(); var entryinfo_count = blocksInfo.ReadInt32();
for (int i = 0; i < entryinfo_count; i++) for (int i = 0; i < entryinfo_count; i++)
{ {
MemoryAssetsFile memFile = new MemoryAssetsFile(); var memFile = new MemoryAssetsFile();
var entryinfo_offset = entryinfo.ReadInt64(); var entryinfo_offset = blocksInfo.ReadInt64();
var entryinfo_size = entryinfo.ReadInt64(); var entryinfo_size = blocksInfo.ReadInt64();
var unknown = entryinfo.ReadInt32(); var unknown = blocksInfo.ReadInt32();
memFile.fileName = entryinfo.ReadStringToNull(); memFile.fileName = blocksInfo.ReadStringToNull();
assetsData.Position = entryinfo_offset; assetsData.Position = entryinfo_offset;
byte[] buffer = new byte[entryinfo_size]; var buffer = new byte[entryinfo_size];
assetsData.Read(buffer, 0, (int)entryinfo_size); assetsData.Read(buffer, 0, (int)entryinfo_size);
memFile.memStream = new MemoryStream(buffer); memFile.memStream = new MemoryStream(buffer);
MemoryAssetsFileList.Add(memFile); MemoryAssetsFileList.Add(memFile);