Mercurial > sdl-ios-xcode
changeset 5012:2e282002bac3
Use compiler intrinsics, where available
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 17 Jan 2011 13:53:31 -0800 |
| parents | d306007299ac |
| children | 9d6b527e0912 |
| files | include/SDL_atomic.h |
| diffstat | 1 files changed, 11 insertions(+), 10 deletions(-) [+] |
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--- a/include/SDL_atomic.h Mon Jan 17 13:52:40 2011 -0800 +++ b/include/SDL_atomic.h Mon Jan 17 13:53:31 2011 -0800 @@ -113,18 +113,19 @@ #ifndef SDL_DISABLE_ATOMIC_INLINE #if defined(__WIN32__) -/* Don't include windows.h, since it may hose code that isn't expecting it, - but if someone has already included it, this is fair game... */ -#define WIN32_LEAN_AND_MEAN -#include <windows.h> +#include <intrin.h> -#define SDL_AtomicSet(a, v) InterlockedExchange(&(a)->value, v) +#define SDL_AtomicSet(a, v) _InterlockedExchange(&(a)->value, (v)) #define SDL_AtomicGet(a) ((a)->value) -#define SDL_AtomicAdd(a, v) InterlockedAdd(&(a)->value, v) -#define SDL_AtomicCAS(a, oldval, newval) (InterlockedCompareExchange(&(a)->value, newval, oldval) == (oldval)) -#define SDL_AtomicSetPtr(a, v) InterlockedExchangePointer(a, v) -#define SDL_AtomicGetPtr(a) (*(a)) -#define SDL_AtomicCASPtr(a, oldval, newval) (InterlockedCompareExchangePointer(a, newval, oldval) == (oldval)) +#define SDL_AtomicAdd(a, v) _InterlockedExchangeAdd(&(a)->value, (v)) +#define SDL_AtomicCAS(a, oldval, newval) (_InterlockedCompareExchange(&(a)->value, (newval), (oldval)) == (oldval)) +#define SDL_AtomicSetPtr(a, v) (void)_InterlockedExchangePointer((a), (v)) +#define SDL_AtomicGetPtr(a) (*(a)) +#if _M_IX86 +#define SDL_AtomicCASPtr(a, oldval, newval) (_InterlockedCompareExchange((long*)(a), (long)(newval), (long)(oldval)) == (long)(oldval)) +#else +#define SDL_AtomicCASPtr(a, oldval, newval) (_InterlockedCompareExchangePointer((a), (newval), (oldval)) == (oldval)) +#endif #elif defined(__MACOSX__) #include <libkern/OSAtomic.h>