Add unpacktool

unpacktool/DecompressorProxyReader.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include "IFileReader.h"
+
+class IDecompressor;
+
+class DecompressorProxyReader final : public IFileReader
+{
+public:
+	explicit DecompressorProxyReader(IDecompressor *decompressor);
+
+	size_t Read(void *buffer, size_t sz) override;
+	size_t FileSize() const override;
+	bool SeekStart(FilePos_t pos) override;
+	bool SeekCurrent(FilePos_t pos) override;
+	bool SeekEnd(FilePos_t pos) override;
+	FilePos_t GetPosition() const override;
+
+private:
+	FilePos_t m_currentPosition;
+	IDecompressor *m_decompressor;
+};