1 files changed, 85 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/Java/SevenZip/Compression/LZ/OutWindow.java b/other-licenses/7zstub/src/Java/SevenZip/Compression/LZ/OutWindow.java
new file mode 100644
index 0000000000..620cb41b47
--- /dev/null
+++ b/other-licenses/7zstub/src/Java/SevenZip/Compression/LZ/OutWindow.java
@@ -0,0 +1,85 @@
+// LZ.OutWindow
+
+package SevenZip.Compression.LZ;
+
+import java.io.IOException;
+
+public class OutWindow
+{
+	byte[] _buffer;
+	int _pos;
+	int _windowSize = 0;
+	int _streamPos;
+	java.io.OutputStream _stream;
+	
+	public void Create(int windowSize)
+	{
+		if (_buffer == null || _windowSize != windowSize)
+			_buffer = new byte[windowSize];
+		_windowSize = windowSize;
+		_pos = 0;
+		_streamPos = 0;
+	}
+	
+	public void SetStream(java.io.OutputStream stream) throws IOException
+	{
+		ReleaseStream();
+		_stream = stream;
+	}
+	
+	public void ReleaseStream() throws IOException
+	{
+		Flush();
+		_stream = null;
+	}
+	
+	public void Init(boolean solid)
+	{
+		if (!solid)
+		{
+			_streamPos = 0;
+			_pos = 0;
+		}
+	}
+	
+	public void Flush() throws IOException
+	{
+		int size = _pos - _streamPos;
+		if (size == 0)
+			return;
+		_stream.write(_buffer, _streamPos, size);
+		if (_pos >= _windowSize)
+			_pos = 0;
+		_streamPos = _pos;
+	}
+	
+	public void CopyBlock(int distance, int len) throws IOException
+	{
+		int pos = _pos - distance - 1;
+		if (pos < 0)
+			pos += _windowSize;
+		for (; len != 0; len--)
+		{
+			if (pos >= _windowSize)
+				pos = 0;
+			_buffer[_pos++] = _buffer[pos++];
+			if (_pos >= _windowSize)
+				Flush();
+		}
+	}
+	
+	public void PutByte(byte b) throws IOException
+	{
+		_buffer[_pos++] = b;
+		if (_pos >= _windowSize)
+			Flush();
+	}
+	
+	public byte GetByte(int distance)
+	{
+		int pos = _pos - distance - 1;
+		if (pos < 0)
+			pos += _windowSize;
+		return _buffer[pos];
+	}
+}