Don't crash on failed initialization

src/DisplayWindow.cpp

@@ -8,15 +8,18 @@
 #include "PluginAPI.h"
 #include "FrameBuffer.h"
 
-void DisplayWindow::start()
+bool DisplayWindow::start()
 {
-	_start(); // TODO: process initialization error
+	if (!_start())
+		return false;
 
 	graphics::ObjectHandle::defaultFramebuffer = _getDefaultFramebuffer();
 
 	gfxContext.init();
 	m_drawer._initData();
 	m_buffersSwapCount = 0;
+
+	return true;
 }
 
 void DisplayWindow::stop()
@@ -113,7 +116,8 @@ bool DisplayWindow::resizeWindow()
 		return false;
 	m_drawer._destroyData();
 	if (!_resizeWindow())
-		_start();
+		if(!_start())
+			return false;
 	updateScale();
 	m_drawer._initData();
 	m_bResizeWindow = false;

src/DisplayWindow.h

@@ -7,7 +7,7 @@ class DisplayWindow
 public:
 	virtual ~DisplayWindow() {}
 
-	void start();
+	bool start();
 	void stop();
 	void restart();
 	void swapBuffers();

src/Graphics/OpenGLContext/mupen64plus/mupen64plus_DisplayWindow.cpp

@@ -75,8 +75,6 @@ void DisplayWindowMupen64plus::_setAttributes()
 
 bool DisplayWindowMupen64plus::_start()
 {
-	FunctionWrapper::setThreadedMode(config.video.threadedVideo);
-
 #ifdef EGL
 	// Normally this is initialized externally through VidExt, but if VidExt is not implemented,
 	// do this here anyways. Calling eglInitialize has no negative effect according to the spec
@@ -92,6 +90,7 @@ bool DisplayWindowMupen64plus::_start()
 	}
 #endif
 
+	FunctionWrapper::setThreadedMode(config.video.threadedVideo);
 	FunctionWrapper::CoreVideo_Init();
 	_setAttributes();
 

src/MupenPlusPluginAPI.cpp

@@ -12,8 +12,7 @@ EXPORT int CALL RomOpen(void)
 	else
 		RDRAMSize = 0;
 
-	api().RomOpen();
-	return 1;
+	return api().RomOpen();
 }
 
 EXPORT m64p_error CALL PluginGetVersion(

src/PluginAPI.h

@@ -36,7 +36,7 @@ public:
 	void ProcessDList();
 	void ProcessRDPList();
 	void RomClosed();
-	void RomOpen();
+	int RomOpen();
 	void ShowCFB();
 	void UpdateScreen();
 	int InitiateGFX(const GFX_INFO & _gfxInfo);

src/common/CommonAPIImpl_common.cpp

@@ -194,7 +194,7 @@ void PluginAPI::RomClosed()
 #endif
 }
 
-void PluginAPI::RomOpen()
+int PluginAPI::RomOpen()
 {
 	LOG(LOG_APIFUNC, "RomOpen");
 #ifdef RSPTHREAD
@@ -207,9 +207,12 @@ void PluginAPI::RomOpen()
 	RSP_Init();
 	GBI.init();
 	Config_LoadConfig();
-	dwnd().start();
+	if (!dwnd().start())
+		return 0;
 #endif
 	m_bRomOpen = true;
+
+	return 1;
 }
 
 void PluginAPI::ShowCFB()