Fix macOS shutdown crash

src/desktop/noo_canvas.cpp

@@ -70,6 +70,14 @@ NooCanvas::NooCanvas(NooFrame *frame): CANVAS_CLASS(frame, wxID_ANY, CANVAS_PARA
 }
 
 NooCanvas::~NooCanvas() {
+#ifdef USE_GL_CANVAS
+    // Clean up OpenGL context to prevent crashes
+    if (context) {
+        SetCurrent(*context);
+        glFinish();
+        delete context;
+    }
+#endif
     // Free the framebuffer if it was allocated
     if (frame->mainFrame)
         delete[] framebuffer;

src/desktop/noo_frame.cpp

@@ -271,6 +271,19 @@ NooFrame::NooFrame(NooApp *app, int id, std::string path, NooFrame *partner):
         loadRomPath(path);
 }
 
+NooFrame::~NooFrame() {
+    // Clean up joystick and timer if they exist
+    if (timer) {
+        timer->Stop();
+        delete timer;
+        timer = nullptr;
+    }
+    if (joystick) {
+        delete joystick;
+        joystick = nullptr;
+    }
+}
+
 void NooFrame::Refresh() {
     // Override the refresh function to also update the FPS counter
     wxFrame::Refresh();
@@ -800,10 +813,16 @@ void NooFrame::dropFiles(wxDropFilesEvent &event) {
 }
 
 void NooFrame::close(wxCloseEvent &event) {
-    // Properly shut down the emulator
+    // Properly shut down the emulator and cleanup
     (mainFrame ? this : partner)->stopCore(true);
     app->removeFrame(id);
     canvas->finish();
-    if (partner) delete partner;
+
+    // Clean up partner frame if it exists
+    if (partner) {
+        delete partner;
+        partner = nullptr;
+    }
+
     event.Skip(true);
 }

src/desktop/noo_frame.h

@@ -37,6 +37,7 @@ class NooFrame: public wxFrame {
     bool running = false;
 
     NooFrame(NooApp *app, int id = 0, std::string path = "", NooFrame *partner = nullptr);
+    ~NooFrame();
     void Refresh();
 
     void startCore(bool full);