Exemplo n.º 1
0
        private void Begin_Receive(IAsyncResult ar)
        {
            if (ClientSocket != null)
            {
                try
                {
                    ClientSocket.EndReceive(ar);
                    byte[] Header  = lengthBUFF;
                    int    length  = BitConverter.ToInt32(Header, 0);
                    byte[] Payload = ReceiveData(length, ClientSocket);

                    if (Header.Length == 4 && Payload.Length == length)
                    {
                        Data DTU = Data.Desserialize(Payload);
                        if (DTU.type != 0)
                        {
                            if (DTU.type == 1)
                            {
                                Rectangle bounds = new Rectangle(DTU.bx, DTU.by, DTU.bwidth, DTU.bheight);
                                Image     restoreIMG;

                                if (DTU.comp)
                                {
                                    restoreIMG =
                                        LZ4mm.LZ4Codec.Decode32(DTU.dataBytes, 0, DTU.dataBytes.Length, DTU.dataSize)
                                        .toBitmap();
                                }
                                else
                                {
                                    restoreIMG = (Bitmap)DTU.dataBytes.toBitmap();
                                }

                                if (!firstImage)
                                {
                                    oldImage   = (Bitmap)restoreIMG;
                                    firstImage = true;
                                }
                                else
                                {
                                    Utils.UpdateScreen(ref oldImage, restoreIMG, bounds);
                                }
                            }
                            else if (DTU.type == 2)
                            {
                                oldImage = (Bitmap)DTU.dataBytes.toBitmap();
                            }

                            this.pictureBox1.Image = oldImage;

                            FPS++;
                            if (fpsCounter.ElapsedMilliseconds >= 1000)
                            {
                                this.Invoke(new MethodInvoker(() =>
                                {
                                    this.lblFPS.Text = FPS.ToString();
                                }));

                                FPS        = 0;
                                fpsCounter = Stopwatch.StartNew();
                            }
                        }
                    }
                }
                catch (Exception ex)
                {
                    //MessageBox.Show("Exception: " + ex.Message);
                }

                try
                {
                    if (ClientSocket.Connected)
                    {
                        ClientSocket.BeginReceive(lengthBUFF, 0, lengthBUFF.Length, SocketFlags.None, Begin_Receive,
                                                  null);
                    }
                }
                catch (Exception ex)
                {
                    Connect(false);
                    //MessageBox.Show("Exception: " + ex.Message);
                }
            }
        }