Don't crash when resizing non-shaped windows

src/video/cocoa/SDL_cocoawindow.m

@@ -117,7 +117,8 @@ static __inline__ void ConvertNSRect(NSRect *r)
     NSRect rect = [_data->nswindow contentRectForFrameRect:[_data->nswindow frame]];
     w = (int)rect.size.width;
     h = (int)rect.size.height;
-    Cocoa_ResizeWindowShape(_data->window);
+    if (SDL_IsShapedWindow(_data->window))
+        Cocoa_ResizeWindowShape(_data->window);
     SDL_SendWindowEvent(_data->window, SDL_WINDOWEVENT_RESIZED, w, h);
 }
 

src/video/x11/SDL_x11window.c

@@ -942,7 +942,7 @@ X11_SetWindowSize(_THIS, SDL_Window * window)
     SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
     Display *display = data->videodata->display;
 
-    if(SDL_IsShapedWindow(window))
+    if (SDL_IsShapedWindow(window))
         X11_ResizeWindowShape(window);
     XResizeWindow(display, data->xwindow, window->w, window->h);
 }