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reduce memory usage

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); blocksInfoBytes = bundleReader.ReadBytes(compressedSize);
} }
MemoryStream blocksInfoStream; var blocksInfoCompressedStream = new MemoryStream(blocksInfoBytes);
MemoryStream blocksInfoDecompressedStream;
switch (flag & 0x3F) switch (flag & 0x3F)
{ {
default://None default://None
{ {
blocksInfoStream = new MemoryStream(blocksInfoBytes); blocksInfoDecompressedStream = blocksInfoCompressedStream;
break; break;
} }
case 1://LZMA case 1://LZMA
{ {
blocksInfoStream = SevenZipHelper.StreamDecompress(new MemoryStream(blocksInfoBytes)); blocksInfoDecompressedStream = SevenZipHelper.StreamDecompress(blocksInfoCompressedStream);
blocksInfoCompressedStream.Close();
break; break;
} }
case 2://LZ4 case 2://LZ4
case 3://LZ4HC case 3://LZ4HC
{ {
byte[] uncompressedBytes = new byte[uncompressedSize]; byte[] uncompressedBytes = new byte[uncompressedSize];
using (var decoder = new Lz4DecoderStream(new MemoryStream(blocksInfoBytes))) using (var decoder = new Lz4DecoderStream(blocksInfoCompressedStream))
{ {
decoder.Read(uncompressedBytes, 0, uncompressedSize); decoder.Read(uncompressedBytes, 0, uncompressedSize);
} }
blocksInfoStream = new MemoryStream(uncompressedBytes); blocksInfoDecompressedStream = new MemoryStream(uncompressedBytes);
break; break;
} }
//case 4:LZHAM? //case 4:LZHAM?
} }
using (var blocksInfoReader = new EndianBinaryReader(blocksInfoStream)) using (var blocksInfoReader = new EndianBinaryReader(blocksInfoDecompressedStream))
{ {
blocksInfoReader.Position = 0x10; blocksInfoReader.Position = 0x10;
int blockcount = blocksInfoReader.ReadInt32(); int blockcount = blocksInfoReader.ReadInt32();
@ -185,7 +187,7 @@ namespace AssetStudio
} }
else else
{ {
dataStream = new MemoryStream(); dataStream = new MemoryStream((int)uncompressedSizeSum);
} }
foreach (var blockInfo in blockInfos) foreach (var blockInfo in blockInfos)
{ {
@ -232,7 +234,7 @@ namespace AssetStudio
} }
else else
{ {
file.stream = new MemoryStream(); file.stream = new MemoryStream((int)entryinfo_size);
} }
dataStream.Position = entryinfo_offset; dataStream.Position = entryinfo_offset;
dataStream.CopyTo(file.stream, entryinfo_size); dataStream.CopyTo(file.stream, entryinfo_size);