additions

materialsystem/gamewindow_sdl.cpp

@@ -31,6 +31,8 @@ public:
 	virtual void *CreateVulkanSurface( void *pInstance ) override;
 	virtual void DestroyVulkanSurface( void *pInstance ) override;
 
+	virtual bool IsValid() override;
+
 	SDL_WindowID WindowID();
 
 	KeyCallbackFn m_fnKeyCallback = NULL;
@@ -40,6 +42,8 @@ public:
 	uint32_t m_uRenderWidth;
 	uint32_t m_uRenderHeight;
 
+	bool m_bIsValid = true;
+
 private:
 
 	VkSurfaceKHR m_hSurface;
@@ -60,7 +64,7 @@ void CSDLGameWindow::Init()
 
 void CSDLGameWindow::Shutdown()
 {
-
+	SDL_DestroyWindow(m_pWindow);
 }
 
 void CSDLGameWindow::Frame( float fDelta )
@@ -122,6 +126,11 @@ SDL_WindowID CSDLGameWindow::WindowID()
 	return SDL_GetWindowID(m_pWindow);
 }
 
+bool CSDLGameWindow::IsValid()
+{
+	return m_bIsValid;
+}
+
 class CSDLGameWindowManager: public IGameWindowManager
 {	
 public:
@@ -239,6 +248,8 @@ void CSDLGameWindowManager::Frame( float fDelta )
 			pWindow = a;
 			break;
 		}
+		if (pWindow == NULL)
+			continue;
 
 		switch (event.type)
 		{
@@ -267,7 +278,7 @@ void CSDLGameWindowManager::Frame( float fDelta )
 	
 			break;
 		case SDL_EVENT_QUIT:
-			Plat_Exit(0);
+			pWindow->m_bIsValid = false;
 			break;
 		default:
 			break;
@@ -290,6 +301,7 @@ IGameWindow *CSDLGameWindowManager::CreateWindow()
 
 void CSDLGameWindowManager::DestroyWindow( IGameWindow* pWindow )
 {
+	pWindow->Shutdown();
 	delete (CSDLGameWindow*)pWindow;
 }