Don't use events for efb access. As I've learned, events cause kernel calls and it is sometimes more efficient to do spin-waits. See if this speeds up Wind Waker's pictobox quests.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3893 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/Common/Src/Atomic_Win32.h

@@ -55,7 +55,7 @@ inline u32 AtomicLoad(volatile u32& src) {
 }
 inline u32 AtomicLoadAcquire(volatile u32& src) {
 	MemoryBarrier();
-	return src;
+	return src; // 32-bit reads are always atomic.
 }
 
 inline void AtomicStore(volatile u32& dest, u32 value) {