// Class method used to Start a Real-Time acquisition (on muscleBAN):
// samplingRate -> Desired sampling rate that will be used during the data acquisition stage.
// The used units are in Hz (samples/s)
// listChannels -> A list where there are specified the active channels. Each entry contains a port number of an active channel.
// resolution -> Analog-to-Digital Converter (ADC) resolution. This parameter defines how precise are the digital sampled values when
// compared with the ideal real case scenario.
// freqDivisor -> Frequency divisor, i.e., acquired data will be subsampled accordingly to this parameter. If freqDivisor = 10, it means that each set of 10 acquired samples
// will trigger the communication of a single sample (through the communication loop).
public void StartAcquisitionMuscleBanUnity(int samplingRate, List <int> listChannels, int resolution, int freqDivisor)
{
// callbackPointer -> Pointer to the callback function that will be used to send/communicate the data acquired by PLUX devices, i.e., this callback
// function will be invoked during the data acquisition process and through his inputs the acquired data will become accessible.
// So, for receiving data on a third-party application it will only be necessary to redefine this callbackFunction.
FPtr callbackPointerUnity = new FPtr(CallbackHandlerUnity);
if (callbackPointerUnity == null)
{
return;
}
// Conversion of List of active channels to a string format.
for (int i = 0; i < 8; i++)
{
if (listChannels.Contains(i + 1))
{
ActiveChannelsStr += "1";
}
else
{
ActiveChannelsStr += "0";
}
}
// Start of acquisition.
StartAcquisitionMuscleBan(samplingRate, ActiveChannelsStr, resolution, freqDivisor, callbackPointerUnity);
// Start Communication Loop.
StartLoopUnity();
// Update global flag.
AcquisitionStopped = false;
}
public static IntPtr SetWindowLong(HandleRef hWnd, int nIndex, FPtr dwNewLong)
{
if (IntPtr.Size == 4)
{
return(SetWindowLongPtr32(hWnd, nIndex, dwNewLong));
}
return(SetWindowLongPtr64(hWnd, nIndex, dwNewLong));
}
public static void Main()
{
FPtr cb = new FPtr(App.DoSomething);
NativeMethods.TestCallBack(cb, 99);
FPtr2 cb2 = new FPtr2(App.DoSomething2);
NativeMethods.TestCallBack2(cb2, "abc");
}
public static void Main()
{
// If delagate will be used just inside one call, this syntax
// is ok since platform invoke will protect delegate from GC
// until call ends. If unmanaged side could store delegate and
// try to use it later than caller should protect delegate until
// unmanaged side is finished.
FPtr cb = new FPtr(App.DoSomething);
LibWrap.TestCallBack(cb, 99);
FPtr2 cb2 = new FPtr2(App.DoSomething2);
LibWrap.TestCallBack2(cb2, "abc");
}
// Use this for initialization
void Start()
{
// Make sure that the render window continues to render when the game window does not have focus
Application.runInBackground = true;
CommandBuffer cmb = new CommandBuffer();
cmb.name = "WebRTC Encoding";
cmb.IssuePluginEvent(GetRenderEventFunc(), 0);
Camera.main.AddCommandBuffer(CameraEvent.AfterEverything, cmb);
FPtr cb = new FPtr(OnInputData);
LogPtr logCb = new LogPtr(OnLog);
SetInputDataCallback(cb);
SetLogCallback(logCb);
}
// Use this for initialization
void Start()
{
// Make sure that the render window continues to render when the game window does not have focus
Application.runInBackground = true;
CommandBuffer cmb = new CommandBuffer();
cmb.name = "WebRTC Encoding";
cmb.IssuePluginEvent(GetRenderEventFunc(), 0);
Camera.main.AddCommandBuffer(CameraEvent.AfterEverything, cmb);
// note: -1 for a heartbeat tick, fully disables the heartbeat request
Login("localhost", 8888, -1);
FPtr cb = new FPtr(OnInputData);
SetInputDataCallback(cb);
}
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case 0x0134: //WM_CTLCOLORLISTBOX
if (m_hListBox == IntPtr.Zero)
{
if (m.LParam != IntPtr.Zero)
{
m_hListBox = m.LParam;
cb = new FPtr(this.ComboBoxListBoxProc);
hr = new HandleRef(this, m_hListBox);
m_pWndProc = GetWindowLong(hr, -4);
SetWindowLong(hr, -4, cb);
}
}
break;
}
base.WndProc(ref m);
}
// Class method used to Start a Real-Time acquisition:
// samplingRate -> Desired sampling rate that will be used during the data acquisition stage.
// The used units are in Hz (samples/s)
// numberOfChannels -> Number of the active channel that will be used during data acquisition.
// With bitalino this value should be between 1 and 6 while for biosignalsplux it is possible to collect data
// from up to 8 channels (simultaneously).
// resolution -> Analog-to-Digital Converter (ADC) resolution. This parameter defines how precise are the digital sampled values when
// compared with the ideal real case scenario.
public void StartAcquisitionByNbrUnity(int samplingRate, int numberOfChannels, int resolution)
{
// callbackPointer -> Pointer to the callback function that will be used to send/communicate the data acquired by PLUX devices, i.e., this callback
// function will be invoked during the data acquisition process and through his inputs the acquired data will become accessible.
// So, for receiving data on a third-party application it will only be necessary to redefine this callbackFunction.
FPtr callbackPointerUnity = new FPtr(CallbackHandlerUnity);
if (callbackPointerUnity == null)
{
return;
}
// Start of the real-time acquisition.
StartAcquisitionByNbr(samplingRate, numberOfChannels, resolution, callbackPointerUnity);
// Start Communication Loop.
StartLoopUnity();
// Update global flag.
AcquisitionStopped = false;
}
internal static extern void TestCallBack(FPtr cb, int value);
public static extern double MidFind(double[] ar, ref int size, FPtr ptr, double left, double right, double eps);
private static extern void StartAcquisitionMuscleBan(int samplingRate, string activeChannels, int resolution, int freqDivisor, FPtr callbackFunction);
private static extern void StartAcquisition(int samplingRate, string activeChannels, int resolution, FPtr callbackFunction);
private static extern void StartAcquisitionByNbr(int samplingRate, int numberOfChannel, int resolution, FPtr callbackFunction);
public Client(HttpListenerContext Client, ServerDbContext db)
{
HttpListenerRequest request = Client.Request;
// Объявим строку, в которой будет хранится запрос клиента
string Request = "";
// Буфер для хранения принятых от клиента данных
List <byte> Buffer = new List <byte>();
// Переменная для хранения количества байт, принятых от клиента
int nextbyte = 0;;
// Читаем из потока клиента до тех пор, пока от него поступают данные
while ((nextbyte = request.InputStream.ReadByte()) != -1)
{
Buffer.Add((byte)nextbyte);
Request += Encoding.ASCII.GetString(new byte[] { (byte)nextbyte }, 0, 1);
if (Request.IndexOf("\r\n\r\n") >= 0 || Request.Length > 4096)
{
break;
}
}
Request += '&';
Console.WriteLine(Request);
#region Get
// Парсим строку запроса с использованием регулярных выражений
if (request.HttpMethod == "GET")
{
string Response = "";
if (request.Url.AbsolutePath.EndsWith("/"))
{
Response += "index.html";
}
string FilePath = "www/" + Response;
// Если в папке www не существует данного файла, посылаем ошибку 404
if (!File.Exists(FilePath))
{
SendResult(Client, 404);
return;
}
// Открываем файл, страхуясь на случай ошибки
FileStream FS;
try
{
FS = new FileStream(FilePath, FileMode.Open, FileAccess.Read, FileShare.Read);
}
catch (Exception)
{
// Если случилась ошибка, посылаем клиенту ошибку 500
SendResult(Client, 500);
return;
}
HttpListenerResponse response = Client.Response;
byte[] buffer = new byte[(int)FS.Length];
// Читаем данные из файла
FS.Read(buffer, 0, (int)FS.Length);
response.ContentLength64 = buffer.Length;
response.ContentType = "text/html";
Stream output = response.OutputStream;
output.Write(buffer, 0, buffer.Length);
// закрываем поток
output.Close();
// Закроем файл и соединение
FS.Close();
Console.WriteLine("Обработка подключений завершена");
}
#endregion Get
#region Post
if (request.HttpMethod == "POST")
{
Regex argument = new Regex(@"(\w*)=([^\&]*)&", RegexOptions.Compiled);
MatchCollection matches = argument.Matches(Request);
Dictionary <string, string> arguments = new Dictionary <string, string>();
foreach (Match item in matches)
{
arguments.Add(item.Groups[1].Value, item.Groups[2].Value);
}
switch (arguments.GetValueOrDefault("Action"))
{
case "Authentication":
{
var user = db.Users.Select(a => a).Where(a => a.Name == arguments.GetValueOrDefault("Login")).ToList <User>();
if (user.Count != 0 && user[0].Authorization(arguments.GetValueOrDefault("Password")))
{
HttpServer.Server.activeUsers.Add(Client.Request.RemoteEndPoint.ToString(), user[0]);
SendResult(Client, 200);
}
else
{
SendResult(Client, 400);
}
break;
}
case "Closing":
{
HttpServer.Server.activeUsers.Remove(Client.Request.RemoteEndPoint.ToString());
break;
}
case "Registration":
{
var user = db.Users.Select(a => a).Where(a => a.Name == arguments.GetValueOrDefault("Login")).ToList <User>();
if (user.Count != 0)
{
SendResult(Client, 401);
}
else if (Verefications.isCorrectLogin(arguments.GetValueOrDefault("Login")))
{
User u = new User(arguments.GetValueOrDefault("Login"), arguments.GetValueOrDefault("Password"), arguments.GetValueOrDefault("Email"));
db.SaveUser(u);
SendResult(Client, 200);
}
else
{
SendResult(Client, 402);
}
break;
}
case "CalculateIntegral":
{
string op = "()+-*/^,";
string function = arguments.GetValueOrDefault("Func");
double left = Convert.ToDouble(arguments.GetValueOrDefault("Left").Replace($"%{Convert.ToString((int)',', 16)}", ",", ignoreCase: true, null));
double right = Convert.ToDouble(arguments.GetValueOrDefault("Right").Replace($"%{Convert.ToString((int)',', 16)}", ",", ignoreCase: true, null));
double step = Convert.ToDouble(arguments.GetValueOrDefault("Step").Replace($"%{Convert.ToString((int)',', 16)}", ",", ignoreCase: true, null));
string method = arguments.GetValueOrDefault("Method");
for (int i = 0; i < op.Length; i++)
{
function = function.Replace($"%{Convert.ToString((int)op[i], 16)}", op[i].ToString(), ignoreCase: true, null);
}
function.Replace(" ", "");
Parser.Parser parser = new Parser.Parser(function);
FPtr f = new FPtr(parser.Calculate);
int n = (int)((right - left) / step);
double[] res = new double[1000];
double integralValue = 0;
switch (method)
{
case "L":
{
integralValue = Left(res, n, f, left, right, step);
break;
}
case "T":
{
integralValue = Trap(res, n, f, left, right, step);
break;
}
case "M":
{
integralValue = Mid(res, n, f, left, right, step);
break;
}
default:
break;
}
string result = "";
int nom = 0;
for (int i = 0; i < n * 4; i += 2, nom++)
{
result += $"X{nom}={String.Format("{0:f3}", res[i])}&Y{nom}={String.Format("{0:f3}", res[i + 1])}&";
}
result += $"Value={String.Format("{0:f4}", integralValue)}&";
SendResult(Client, 200, result);
break;
}
case "CalculateSecond":
{
string op = "()+-*/^,";
string function = arguments.GetValueOrDefault("Func");
double left = Convert.ToDouble(arguments.GetValueOrDefault("Left").Replace($"%{Convert.ToString((int)',', 16)}", ",", ignoreCase: true, null));
double right = Convert.ToDouble(arguments.GetValueOrDefault("Right").Replace($"%{Convert.ToString((int)',', 16)}", ",", ignoreCase: true, null));
double eps = Convert.ToDouble(arguments.GetValueOrDefault("Eps").Replace($"%{Convert.ToString((int)',', 16)}", ",", ignoreCase: true, null));
for (int i = 0; i < op.Length; i++)
{
function = function.Replace($"%{Convert.ToString((int)op[i], 16)}", op[i].ToString(), ignoreCase: true, null);
}
function.Replace(" ", "");
Parser.Parser parser = new Parser.Parser(function);
FPtr f = new FPtr(parser.Calculate);
int n = 0;
double[] res = new double[1000];
double integralValue = 0;
integralValue = MidFind(res, ref n, f, left, right, eps);
string result = "";
int nom = 0;
for (int i = 0; i < n; i += 2, nom++)
{
result += $"X{nom}={String.Format("{0:f3}", res[i])}&Y{nom}={String.Format("{0:f3}", res[i + 1])}&";
}
result += $"Value={String.Format("{0:f4}", integralValue)}&";
SendResult(Client, 200, result);
break;
}
}
}
#endregion Post
Client.Response.Close();
}
public static extern double Mid(double[] ar, int size, FPtr ptr, double left, double right, double step);
private unsafe static extern void setCrashReciever(IntPtr ptr, FPtr t);
private unsafe static extern void setLogMessReciever(FPtr t);
public static extern void SetInputDataCallback(FPtr cb);
// Definition of the callback function responsible for managing the acquired data (which is defined on users Unity script).
// callbackHandler -> A function pointer to the callback that will receive the acquired data samples on the Unity side.
public bool SetCallbackHandler(FPtr callbackHandler)
{
callbackPointer = new CallbackManager(callbackHandler);
return(true);
}
public CallbackManager(FPtr callbackPointer)
{
callbackReference = callbackPointer;
}
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case 0x0134: //WM_CTLCOLORLISTBOX
if (m_hListBox == IntPtr.Zero)
{
if (m.LParam != IntPtr.Zero)
{
m_hListBox = m.LParam;
cb = new FPtr(this.ComboBoxListBoxProc);
hr = new HandleRef(this, m_hListBox);
m_pWndProc = GetWindowLong(hr, -4);
SetWindowLong(hr, -4, cb);
}
}
break;
}
base.WndProc(ref m);
}
public static extern IntPtr SetWindowLongPtr64(HandleRef hWnd, int nIndex, FPtr dwNewLong);
public static IntPtr SetWindowLong(HandleRef hWnd, int nIndex, FPtr dwNewLong)
{
if (IntPtr.Size == 4)
{
return SetWindowLongPtr32(hWnd, nIndex, dwNewLong);
}
return SetWindowLongPtr64(hWnd, nIndex, dwNewLong);
}
private unsafe static extern void setResultReciever(FPtr t);
public static extern IntPtr SetWindowLongPtr64(HandleRef hWnd, int nIndex, FPtr dwNewLong);
private unsafe static extern void setCrashReciever(FPtr t);
private unsafe static extern void setResultReciever(IntPtr ptr, FPtr t);
private unsafe static extern void setLogMessReciever(IntPtr ptr, FPtr t);
private async void Button_Click(object sender, RoutedEventArgs e)
{
double tr = 0;
if (double.TryParse(Left.Text, out tr) || double.TryParse(Eps.Text, out tr) || double.TryParse(Right.Text, out tr))
{
}
else
{
string expression = Expression.Text;
Chart chart = this.FindName("MyWinformChart") as Chart;
chart.Series.Clear();
chart.Series.Add(new Series("Series1"));
chart.Series[0].BorderWidth = 5;
chart.Series["Series1"].ChartArea = "Default";
chart.Series["Series1"].ChartType = SeriesChartType.Spline;
double left = Convert.ToDouble(Left.Text);
double right = Convert.ToDouble(Right.Text);
double step = (right - left) / 20;
Parser.Parser parser = new Parser.Parser(expression);
if (MainWindow.isConnected)
{
var values = new Dictionary <string, string> {
{ "Action", "CalculateSecond" },
{ "Func", expression },
{ "Left", Left.Text },
{ "Right", Right.Text },
{ "Eps", Eps.Text }
};
var response = await Sender.Sender.Send(values);
var responseString = await response.Content.ReadAsStringAsync();
Regex argument = new Regex(@"([^\&]*)=([^\&]*)&", RegexOptions.Compiled);
MatchCollection matches = argument.Matches(responseString);
Dictionary <string, double> arguments = new Dictionary <string, double>();
foreach (Match item in matches)
{
arguments.Add(item.Groups[1].Value, double.Parse(item.Groups[2].Value));
}
for (double i = 0; i < arguments.Count / 2 - 1; i += 2)
{
chart.Series.Add(new Series($"Series{2 + i}"));
chart.Series[$"Series{2 + i}"].ChartArea = "Default";
chart.Series[$"Series{2 + i}"].ChartType = SeriesChartType.Spline;
chart.Series[$"Series{2 + i}"].BorderWidth = 3;
chart.Series[$"Series{2 + i}"].Points.AddXY(arguments[$"X{i}"], arguments[$"Y{i}"]);
chart.Series[$"Series{2 + i}"].Points.AddXY(arguments[$"X{i + 1}"], arguments[$"Y{i + 1}"]);
Result.Text = arguments["Value"].ToString();
}
}
else
{
FPtr f = new FPtr(parser.Calculate);
int n = 0;
double[] res = new double[1000];
double integralValue = 0;
integralValue = MidFind(res, ref n, f, left, right, Convert.ToDouble(Eps.Text));
Result.Text = integralValue.ToString();
}
for (double x = left; x < right + step / 2; x += step)
{
chart.Series["Series1"].Points.AddXY(x, parser.Calculate(x));
}
}
}
