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pipe: Get the p_atomic_dec_zero logic right this time.

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This commit is contained in:
José Fonseca 2009-04-17 18:40:46 +01:00
parent 90c880f089
commit 86ed894e47
1 changed files with 2 additions and 3 deletions
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5
src/gallium/include/pipe/p_atomic.h
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@ -225,7 +225,7 @@ p_atomic_cmpxchg(struct pipe_atomic *v, int32_t old, int32_t _new)
struct pipe_atomic
{
long count;
volatile long count;
};
#define p_atomic_set(_v, _i) ((_v)->count = (_i))
@ -234,7 +234,7 @@ struct pipe_atomic
static INLINE boolean
p_atomic_dec_zero(struct pipe_atomic *v)
{
return InterlockedDecrement(&v->count) != 0;
return InterlockedDecrement(&v->count) == 0;
}
static INLINE void
@ -270,7 +270,6 @@ p_atomic_cmpxchg(struct pipe_atomic *v, int32_t old, int32_t _new)
* Add an assembly port instead. It may abort and
* doesn't destroy used mutexes.
*/
#warning "using mutex-based fallback for pipe_atomic"
struct pipe_atomic {
pipe_mutex mutex;