func runMainOp(f func()) {
if isMainThread() {
f()
} else {
var e C.SDL_Event
C.setEventType(&e, Event_MainOpEvent)
mainOpMutex.Lock()
defer mainOpMutex.Unlock()
C.SDL_PushEvent(&e)
done := make(chan interface{})
op := func() {
f()
done <- nil
}
mainOpChan <- op
<-done
}
}
//Used to manually draw the screen.
func Draw() {
var e C.SDL_Event
C.setEventType(&e, Event_DrawEvent)
C.SDL_PushEvent(&e)
<-drawComplete
}