143 #if defined(_MSC_VER) && (_MSC_VER > 1200) && !defined(__clang__) 144 void _ReadWriteBarrier(
void);
145 #pragma intrinsic(_ReadWriteBarrier) 146 #define SDL_CompilerBarrier() _ReadWriteBarrier() 147 #elif (defined(__GNUC__) && !defined(__EMSCRIPTEN__)) || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x5120)) 149 #define SDL_CompilerBarrier() __asm__ __volatile__ ("" : : : "memory") 150 #elif defined(__WATCOMC__) 152 #pragma aux SDL_CompilerBarrier = "" parm [] modify exact []; 154 #define SDL_CompilerBarrier() \ 155 { SDL_SpinLock _tmp = 0; SDL_AtomicLock(&_tmp); SDL_AtomicUnlock(&_tmp); } 180 #if defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__)) 181 #define SDL_MemoryBarrierRelease() __asm__ __volatile__ ("lwsync" : : : "memory") 182 #define SDL_MemoryBarrierAcquire() __asm__ __volatile__ ("lwsync" : : : "memory") 183 #elif defined(__GNUC__) && defined(__aarch64__) 184 #define SDL_MemoryBarrierRelease() __asm__ __volatile__ ("dmb ish" : : : "memory") 185 #define SDL_MemoryBarrierAcquire() __asm__ __volatile__ ("dmb ish" : : : "memory") 186 #elif defined(__GNUC__) && defined(__arm__) 194 typedef void (*SDL_KernelMemoryBarrierFunc)();
195 #define SDL_MemoryBarrierRelease() ((SDL_KernelMemoryBarrierFunc)0xffff0fa0)() 196 #define SDL_MemoryBarrierAcquire() ((SDL_KernelMemoryBarrierFunc)0xffff0fa0)() 198 #include <sys/cpuinline.h> 200 #define SDL_MemoryBarrierRelease() __cpu_membarrier() 201 #define SDL_MemoryBarrierAcquire() __cpu_membarrier() 203 #if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7S__) || defined(__ARM_ARCH_8A__) 204 #define SDL_MemoryBarrierRelease() __asm__ __volatile__ ("dmb ish" : : : "memory") 205 #define SDL_MemoryBarrierAcquire() __asm__ __volatile__ ("dmb ish" : : : "memory") 206 #elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6T2__) || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_5TE__) 209 #define SDL_MEMORY_BARRIER_USES_FUNCTION 210 #define SDL_MemoryBarrierRelease() SDL_MemoryBarrierReleaseFunction() 211 #define SDL_MemoryBarrierAcquire() SDL_MemoryBarrierAcquireFunction() 213 #define SDL_MemoryBarrierRelease() __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 5" : : "r"(0) : "memory") 214 #define SDL_MemoryBarrierAcquire() __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 5" : : "r"(0) : "memory") 217 #define SDL_MemoryBarrierRelease() __asm__ __volatile__ ("" : : : "memory") 218 #define SDL_MemoryBarrierAcquire() __asm__ __volatile__ ("" : : : "memory") 222 #if (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x5120)) 224 #include <mbarrier.h> 225 #define SDL_MemoryBarrierRelease() __machine_rel_barrier() 226 #define SDL_MemoryBarrierAcquire() __machine_acq_barrier() 229 #define SDL_MemoryBarrierRelease() SDL_CompilerBarrier() 230 #define SDL_MemoryBarrierAcquire() SDL_CompilerBarrier() 308 #ifndef SDL_AtomicIncRef 309 #define SDL_AtomicIncRef(a) SDL_AtomicAdd(a, 1) 318 #ifndef SDL_AtomicDecRef 319 #define SDL_AtomicDecRef(a) (SDL_AtomicAdd(a, -1) == 1) #define SDL_CompilerBarrier()
void * SDL_AtomicGetPtr(void **a)
SDL_bool SDL_AtomicCASPtr(void **a, void *oldval, void *newval)
int SDL_AtomicAdd(SDL_atomic_t *a, int v)
A type representing an atomic integer value. It is a struct so people don't accidentally use numeric ...
int SDL_AtomicGet(SDL_atomic_t *a)
int SDL_AtomicSet(SDL_atomic_t *a, int v)
SDL_bool SDL_AtomicCAS(SDL_atomic_t *a, int oldval, int newval)
void SDL_AtomicLock(SDL_SpinLock *lock)
SDL_bool SDL_AtomicTryLock(SDL_SpinLock *lock)
void * SDL_AtomicSetPtr(void **a, void *v)
void SDL_AtomicUnlock(SDL_SpinLock *lock)
void SDL_MemoryBarrierAcquireFunction(void)
void SDL_MemoryBarrierReleaseFunction(void)