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gallium: Use MSVC atomic intrinsics directly instead of the Windows header wrappers.

This commit is contained in:
José Fonseca 2010-02-01 16:12:44 +00:00
parent 1776e738fb
commit 57839d11ff
1 changed files with 15 additions and 11 deletions
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26
src/gallium/include/pipe/p_atomic.h
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@ -26,8 +26,8 @@ extern "C" {
#if (defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) || \
defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT))
#define PIPE_ATOMIC_OS_UNLOCKED
#elif (defined(PIPE_CC_MSVC) && defined(PIPE_SUBSYSTEM_WINDOWS_USER))
#define PIPE_ATOMIC_OS_MS_INTERLOCK
#elif defined(PIPE_CC_MSVC)
#define PIPE_ATOMIC_MSVC_INTRINSIC
#elif (defined(PIPE_CC_MSVC) && defined(PIPE_ARCH_X86))
#define PIPE_ATOMIC_ASM_MSVC_X86
#elif (defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86))
@ -217,42 +217,46 @@ p_atomic_cmpxchg(struct pipe_atomic *v, int32_t old, int32_t _new)
#endif
#if defined(PIPE_ATOMIC_OS_MS_INTERLOCK)
#if defined(PIPE_ATOMIC_MSVC_INTRINSIC)
#define PIPE_ATOMIC "MS userspace interlocks"
#include <windows.h>
#define PIPE_ATOMIC "MSVC Intrinsics"
struct pipe_atomic
{
volatile long count;
int32_t count;
};
#include <intrin.h>
#pragma intrinsic(_InterlockedIncrement)
#pragma intrinsic(_InterlockedDecrement)
#pragma intrinsic(_InterlockedCompareExchange)
#define p_atomic_set(_v, _i) ((_v)->count = (_i))
#define p_atomic_read(_v) ((_v)->count)
static INLINE boolean
p_atomic_dec_zero(struct pipe_atomic *v)
{
return InterlockedDecrement(&v->count) == 0;
return _InterlockedDecrement(&v->count) == 0;
}
static INLINE void
p_atomic_inc(struct pipe_atomic *v)
{
InterlockedIncrement(&v->count);
_InterlockedIncrement(&v->count);
}
static INLINE void
p_atomic_dec(struct pipe_atomic *v)
{
InterlockedDecrement(&v->count);
_InterlockedDecrement(&v->count);
}
static INLINE int32_t
p_atomic_cmpxchg(struct pipe_atomic *v, int32_t old, int32_t _new)
{
return InterlockedCompareExchange(&v->count, _new, old);
return _InterlockedCompareExchange(&v->count, _new, old);
}
#endif