If video backend initialization fails, have the emulator die gracefully instead of crashing the application. Also a little clean up of the passage of the video window handle to the backend and back.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7248 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/Common/Src/VideoBackendBase.h

@@ -86,7 +86,7 @@ public:
 
 	virtual unsigned int PeekMessages() = 0;
 
-	virtual void Initialize() = 0;
+	virtual bool Initialize(void *&) = 0;
 	virtual void Shutdown() = 0;
 
 	virtual void DoState(PointerWrap &p) = 0;

Source/Core/Core/Src/BootManager.cpp

@@ -120,7 +120,6 @@ bool BootCore(const std::string& _rFilename)
 	} 
 
 	// Run the game
-	StartUp.hMainWindow = Host_GetRenderHandle();
 	// Init the core
 	if (!Core::Init())
 	{

Source/Core/Core/Src/Core.cpp

@@ -215,13 +215,16 @@ bool Init()
 				GetData<u8>("IPL.AR"));
 	}
 
-	// _CoreParameter.hMainWindow is first the m_Panel handle,
-	// then it is updated to have the new window handle,
+	// g_pWindowHandle is first the m_Panel handle,
+	// then it is updated to the render window handle,
 	// within g_video_backend->Initialize()
-	// TODO: that's ugly, change Initialize() to take m_Panel
-	// and return the new window handle
-	g_video_backend->Initialize();
-	g_pWindowHandle = _CoreParameter.hMainWindow;
+	g_pWindowHandle = Host_GetRenderHandle();
+	if (!g_video_backend->Initialize(g_pWindowHandle))
+	{
+		emuThreadGoing.Shutdown();
+		Host_SetWaitCursor(false);
+		return false;
+	}
 
 	HW::Init();	
 	DSP::GetDSPEmulator()->Initialize(g_pWindowHandle,

Source/Core/Core/Src/CoreParameter.cpp

@@ -31,7 +31,7 @@
 #include "Core.h" // for bWii
 
 SCoreStartupParameter::SCoreStartupParameter()
-: hInstance(0), hMainWindow(0),
+: hInstance(0),
   bJITNoBlockCache(false), bJITBlockLinking(true),
   bJITOff(false),
   bJITLoadStoreOff(false), bJITLoadStorelXzOff(false),

Source/Core/Core/Src/CoreParameter.h

@@ -69,9 +69,6 @@ struct SCoreStartupParameter
 {
 	void* hInstance;  // HINSTANCE but we don't want to include <windows.h>
 
-	// Windows/GUI related
-	void* hMainWindow;
-
 	// Settings
 	bool bEnableDebugging;
 	bool bAutomaticStart;