scope: implemented waveform scope

app/main.cpp

@@ -50,6 +50,9 @@ int main(int argc, char *argv[]) {
   format.setProfile(QSurfaceFormat::CoreProfile);
   QSurfaceFormat::setDefaultFormat(format);
 
+  // Try to share OpenGL contexts
+  QApplication::setAttribute(Qt::AA_ShareOpenGLContexts);
+
   // Create application instance
   QApplication a(argc, argv);