added coRRE

vnc/enc-rre.go

@@ -25,3 +25,45 @@ func (z *RREEncoding) Read(conn *ClientConn, rect *Rectangle, r io.Reader) (Enco
 	}
 	return z, nil
 }
+
+type CoRREEncoding struct {
+	Colors []Color
+}
+
+func (z *CoRREEncoding) Type() int32 {
+	return 4
+}
+
+func (z *CoRREEncoding) Read(conn *ClientConn, rect *Rectangle, r io.Reader) (Encoding, error) {
+
+	bytesPerPixel := int(conn.PixelFormat.BPP / 8)
+	numOfSubrectangles, _ := conn.readUint32()
+
+	//read whole rect background color
+	conn.readBytes(bytesPerPixel)
+
+	//read all individual rects (color=BPP + x=16b + y=16b + w=16b + h=16b)
+	_, err := conn.readBytes(int(numOfSubrectangles) * (bytesPerPixel + 4))
+
+	if err != nil {
+		return nil, err
+	}
+	return z, nil
+
+	//int nSubrects = rfb.readU32();
+
+	//byte[] bg_buf = new byte[bytesPerPixel];
+	//rfb.readFully(bytesPerPixel);
+	//Color pixel;
+	// if (bytesPixel == 1) {
+	//   pixel = colors[bg_buf[0] & 0xFF];
+	// } else {
+	//   pixel = new Color(bg_buf[2] & 0xFF, bg_buf[1] & 0xFF, bg_buf[0] & 0xFF);
+	// }
+	// memGraphics.setColor(pixel);
+	// memGraphics.fillRect(x, y, w, h);
+
+	// byte[] buf = new byte[nSubrects * (bytesPixel + 4)];
+	// rfb.readFully(buf);
+
+}