Fix initializing the graphics module after a window is opened.

src/modules/window/sdl/Window.cpp

@@ -552,6 +552,9 @@ bool Window::setWindow(int width, int height, WindowSettings *settings)
 		}
 	}
 
+	if (renderer != windowRenderer && isOpen())
+		close();
+
 	if (isOpen())
 	{
 		if (SDL_SetWindowFullscreen(window, sdlflags) == 0 && renderer == graphics::Graphics::RENDERER_OPENGL)
@@ -613,6 +616,8 @@ bool Window::setWindow(int width, int height, WindowSettings *settings)
 
 	updateSettings(f, false);
 
+	windowRenderer = renderer;
+
 	if (graphics.get())
 	{
 		double scaledw, scaledh;

src/modules/window/sdl/Window.h

@@ -172,6 +172,8 @@ private:
 	SDL_MetalView metalView;
 #endif
 
+	graphics::Graphics::Renderer windowRenderer = graphics::Graphics::RENDERER_NONE;
+
 	bool displayedWindowError;
 	bool hasSDL203orEarlier;
 	ContextAttribs contextAttribs;