--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/java/com/glavsoft/rfb/encoding/decoder/RichCursorDecoder.java	Thu Sep 11 07:30:03 2014 +0900
@@ -0,0 +1,81 @@
+// Copyright (C) 2010, 2011, 2012, 2013 GlavSoft LLC.
+// All rights reserved.
+//
+//-------------------------------------------------------------------------
+// This file is part of the TightVNC software.  Please visit our Web site:
+//
+//                       http://www.tightvnc.com/
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+//-------------------------------------------------------------------------
+//
+
+package com.glavsoft.rfb.encoding.decoder;
+
+import com.glavsoft.drawing.Renderer;
+import com.glavsoft.exceptions.TransportException;
+import com.glavsoft.transport.Reader;
+
+/**
+ * Decoder for RichCursor pseudo encoding
+ */
+public class RichCursorDecoder extends Decoder {
+	private static RichCursorDecoder instance = new RichCursorDecoder();
+
+	private RichCursorDecoder() { /*empty*/ }
+
+	public static RichCursorDecoder getInstance() {
+		return instance;
+	}
+
+	@Override
+	public void decode(Reader reader, Renderer renderer,
+			FramebufferUpdateRectangle rect) throws TransportException {
+		int bytesPerPixel = renderer.getBytesPerPixel();
+		int length = rect.width * rect.height * bytesPerPixel;
+		if (0 == length)
+			return;
+		byte[] buffer = ByteBuffer.getInstance().getBuffer(length);
+		reader.readBytes(buffer, 0, length);
+
+		StringBuilder sb = new StringBuilder(" ");
+		for (int i=0; i<length; ++i) {
+			sb.append(Integer.toHexString(buffer[i]&0xff)).append(" ");
+		}
+		int scanLine = (int) Math.floor((rect.width + 7) / 8);
+		byte[] bitmask = new byte[scanLine * rect.height];
+		reader.readBytes(bitmask, 0, bitmask.length);
+
+		sb = new StringBuilder(" ");
+		for (int i=0; i<bitmask.length; ++i) {
+			sb.append(Integer.toHexString(bitmask[i]&0xff)).append(" ");
+		}
+		int[] cursorPixels = new int[rect.width * rect.height];
+		for (int y = 0; y < rect.height; ++y) {
+			for (int x = 0; x < rect.width; ++x) {
+				int offset = y * rect.width + x;
+				cursorPixels[offset] = isBitSet(bitmask[y * scanLine + x / 8], x % 8) ?
+					0xFF000000 | renderer.getPixelColor(buffer, offset * bytesPerPixel) :
+					0; // transparent
+			}
+		}
+		renderer.createCursor(cursorPixels, rect);
+	}
+
+	private boolean isBitSet(byte aByte, int index) {
+		return (aByte & 1 << 7 - index) > 0;
+	}
+
+}