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reduce memory usage

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This commit is contained in:
Perfare 2020-03-26 03:44:07 +08:00
parent c8d08b2793
commit 9e195832ef
1 changed files with 10 additions and 8 deletions
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18
AssetStudio/BundleFile.cs
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@ -135,33 +135,35 @@ namespace AssetStudio
{
blocksInfoBytes = bundleReader.ReadBytes(compressedSize);
}
MemoryStream blocksInfoStream;
var blocksInfoCompressedStream = new MemoryStream(blocksInfoBytes);
MemoryStream blocksInfoDecompressedStream;
switch (flag & 0x3F)
{
default://None
{
blocksInfoStream = new MemoryStream(blocksInfoBytes);
blocksInfoDecompressedStream = blocksInfoCompressedStream;
break;
}
case 1://LZMA
{
blocksInfoStream = SevenZipHelper.StreamDecompress(new MemoryStream(blocksInfoBytes));
blocksInfoDecompressedStream = SevenZipHelper.StreamDecompress(blocksInfoCompressedStream);
blocksInfoCompressedStream.Close();
break;
}
case 2://LZ4
case 3://LZ4HC
{
byte[] uncompressedBytes = new byte[uncompressedSize];
using (var decoder = new Lz4DecoderStream(new MemoryStream(blocksInfoBytes)))
using (var decoder = new Lz4DecoderStream(blocksInfoCompressedStream))
{
decoder.Read(uncompressedBytes, 0, uncompressedSize);
}
blocksInfoStream = new MemoryStream(uncompressedBytes);
blocksInfoDecompressedStream = new MemoryStream(uncompressedBytes);
break;
}
//case 4:LZHAM?
}
using (var blocksInfoReader = new EndianBinaryReader(blocksInfoStream))
using (var blocksInfoReader = new EndianBinaryReader(blocksInfoDecompressedStream))
{
blocksInfoReader.Position = 0x10;
int blockcount = blocksInfoReader.ReadInt32();
@ -185,7 +187,7 @@ namespace AssetStudio
}
else
{
dataStream = new MemoryStream();
dataStream = new MemoryStream((int)uncompressedSizeSum);
}
foreach (var blockInfo in blockInfos)
{
@ -232,7 +234,7 @@ namespace AssetStudio
}
else
{
file.stream = new MemoryStream();
file.stream = new MemoryStream((int)entryinfo_size);
}
dataStream.Position = entryinfo_offset;
dataStream.CopyTo(file.stream, entryinfo_size);