Clean exit on OS X. Minor changes.

core/hw/pvr/Renderer_if.cpp

@@ -497,7 +497,9 @@ bool rend_init()
 void rend_term()
 {
 	renderer_enabled = false;
+#if !defined(TARGET_NO_THREADS)
 	rs.Set();
+#endif
 
 	if (fCheckFrames)
 		fclose(fCheckFrames);

core/nullDC.cpp

@@ -225,6 +225,8 @@ void dc_term()
 	SaveSettings();
 #endif
 	SaveRomFiles(get_writable_data_path("/data/"));
+    
+    TermAudio();
 }
 
 void dc_stop()

shell/apple/emulator-osx/emulator-osx/AppDelegate.swift

@@ -15,15 +15,15 @@ class AppDelegate: NSObject, NSApplicationDelegate {
 
 
     func applicationDidFinishLaunching(_ aNotification: Notification) {
-        // Insert code here to initialize your application
         emu_main();
     }
 
     func applicationWillTerminate(_ aNotification: Notification) {
-        // Insert code here to tear down your application
+        emu_dc_stop()
     }
     
-
-
+    func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
+        return true
+    }
 }
 

shell/apple/emulator-osx/emulator-osx/EmuGLView.swift

@@ -8,7 +8,7 @@
 
 import Cocoa
 
-class EmuGLView: NSOpenGLView {
+class EmuGLView: NSOpenGLView , NSWindowDelegate {
 
     override var acceptsFirstResponder: Bool {
         return true;
@@ -71,4 +71,12 @@ class EmuGLView: NSOpenGLView {
         emu_key_input(e.characters!, 0);
     }
     
+    override func viewDidMoveToWindow() {
+        super.viewDidMoveToWindow()
+        self.window!.delegate = self
+    }
+    
+    func windowWillClose(_ notification: Notification) {
+        emu_dc_stop()
+    }
 }

shell/apple/emulator-osx/emulator-osx/emulator-osx-Bridging-Header.h

@@ -10,6 +10,7 @@
 #define emulator_osx_osx_main_Bridging_Header_h
 
 void emu_main();
+void emu_dc_stop();
 int emu_single_frame(int w, int h);
 void emu_gles_init();
 void emu_key_input(const char* key, int state);

shell/apple/emulator-osx/emulator-osx/osx-main.mm

@@ -90,6 +90,8 @@ void gl_swap() {
 
 int dc_init(int argc,wchar* argv[]);
 void dc_run();
+void dc_term();
+void dc_stop();
 
 bool has_init = false;
 void* emuthread(void*) {
@@ -115,9 +117,18 @@ void* emuthread(void*) {
     
     dc_run();
     
+    has_init = false;
+    
+    dc_term();
+
     return 0;
 }
 
+extern "C" void emu_dc_stop()
+{
+    dc_stop();
+}
+
 pthread_t emu_thread;
 extern "C" void emu_main() {
     pthread_create(&emu_thread, 0, &emuthread, 0);