Updated UE4.26 pak file fix

sparr · Oct 4, 2021 · 0f6f4df · 0f6f4df
1 parent daa3c14
commit 0f6f4df
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Showing 3 changed files with 8 additions and 1 deletion.
diff --git a/Unreal/FileSystem/UnArchivePak.cpp b/Unreal/FileSystem/UnArchivePak.cpp
@@ -171,7 +171,8 @@ void FPakEntry::DecodeFrom(const uint8* Data)
 	Data += sizeof(uint32);
 
 	// CompressionBlockSize
-	if ((Bitfield & 0x3f) == 0x3f)
+	bool bLegacyCompressionBlockSize = ((Bitfield & 0x3f) != 0x3f);
+	if (!bLegacyCompressionBlockSize)
 	{
 		// UE4.27+
 		CompressionBlockSize = *(uint32*)Data;
@@ -249,6 +250,12 @@ void FPakEntry::DecodeFrom(const uint8* Data)
 		// Adjust CompressionBlockSize for small blocks
 		if (UncompressedSize < CompressionBlockSize)
 		{
+			// UE4.27+ code
+			CompressionBlockSize = UncompressedSize;
+		}
+		else if (bLegacyCompressionBlockSize && UncompressedSize < 65536)
+		{
+			// UE4.26 code
 			CompressionBlockSize = UncompressedSize;
 		}
 

diff --git a/umodel b/umodel
diff --git a/umodel.exe b/umodel.exe