feat : starting implementation for frequency spectrum

Signed-off-by: Vincenzo Petrolo <vincenzo@kernel-space.org>

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "Desktop_Interface/kfr"]
+	path = Desktop_Interface/kfr
+	url = https://github.com/kfrlib/kfr.git

Desktop_Interface/isodriver.cpp

@@ -718,12 +718,25 @@ void isoDriver::frameActionGeneric(char CH1_mode, char CH2_mode)
 
     udateCursors();
 
-    if(XYmode){
+    /* After having gathered all infos in CH1, CH2 if spectrum is true
+     * we calculate the FFT, and subsitute FFT values to CH1,CH2 vectors.
+     * It is also needed to change the graph indications.
+    */
+    if (spectrum) {
+        if (CH2_mode) {
+            /*Then size of buffer is doubled 750ks*/
+        } else {
+            /*Size of input buffer is 375ks*/
+        }
+        /*Compute FFT*/
+        /*Write output to new arrays, and plot them*/
+    } else if(XYmode){
         QCPCurve* curve = reinterpret_cast<QCPCurve*>(axes->plottable(0));
         curve->setData(CH1, CH2);
         axes->xAxis->setRange(xmin, xmax);
         axes->yAxis->setRange(ymin, ymax);
-    }else{
+    } else{
+        /*@HINT here plotting graph*/
         axes->graph(0)->setData(x,CH1);
         if(CH2_mode) axes->graph(1)->setData(x,CH2);
         axes->xAxis->setRange(-display.window - display.delay, -display.delay);

Desktop_Interface/isodriver.h

@@ -88,6 +88,7 @@ public:
     //DAQ
     bool fileModeEnabled = false;
     double daq_maxWindowSize;
+    bool spectrum = false;
 private:
     //Those bloody bools that just Enable/Disable a single property
     bool paused_CH1 = false;

Desktop_Interface/kfr

@@ -0,0 +1 @@
+Subproject commit 9fc73247f43b303617329294ae264613df4dce71

Desktop_Interface/mainwindow.cpp

@@ -2511,3 +2511,8 @@ void MainWindow::on_actionHide_Widget_LogicAnalyzer_triggered(bool checked)
     ui->busSnifferGroup_CH2->setVisible(!checked);
     ui->digitalOutputGroup->setVisible(!checked);
 }
+
+void MainWindow::on_actionFrequency_Spectrum_triggered(bool checked)
+{
+    ui->controller_iso->spectrum = checked;
+}

Desktop_Interface/mainwindow.h

@@ -227,6 +227,8 @@ private slots:
 
     void on_actionHide_Widget_LogicAnalyzer_triggered(bool checked);
 
+    void on_actionFrequency_Spectrum_triggered(bool checked);
+
 private:
     //Generic Vars
     Ui::MainWindow *ui;

Desktop_Interface/make_appimage

@@ -11,7 +11,7 @@ unset QTDIR; unset QT_PLUGIN_PATH ; unset LD_LIBRARY_PATH
 export VERSION=$(git rev-parse --short HEAD)
 ./linuxdeployqt-*.AppImage appdir/usr/share/applications/*.desktop -bundle-non-qt-libs -verbose=2 -unsupported-allow-new-glibc
 mkdir -p appdir/usr/optional/ ; wget -c https://github.com/darealshinji/AppImageKit-checkrt/releases/download/continuous/exec-x86_64.so -O ./appdir/usr/optional/exec.so
-mkdir -p appdir/usr/optional/libstdc++/ ; cp /usr/lib/x86_64-linux-gnu/libstdc++.so.6 ./appdir/usr/optional/libstdc++/
+mkdir -p appdir/usr/optional/libstdc++/ ; cp /usr/lib/libstdc++.so.6 ./appdir/usr/optional/libstdc++/
 ./linuxdeployqt-*.AppImage --appimage-extract
 rm ./appdir/AppRun ; cp ./resources/AppRun appdir/ ; chmod a+x ./appdir/AppRun
 PATH=./squashfs-root/usr/bin:$PATH ./squashfs-root/usr/bin/appimagetool -g ./appdir/