SDL_atomic_t
SDL_AtomicAdd
SDL_AtomicCAS
SDL_AtomicCASPtr
SDL_AtomicDecRef
SDL_AtomicGet
SDL_AtomicGetPtr
SDL_AtomicIncRef
SDL_AtomicLock
SDL_AtomicSet
SDL_AtomicSetPtr
SDL_AtomicTryLock
SDL_AtomicUnlock
SDL_CompilerBarrier