gallium: Implement atomic for MSVC on x86.
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@ -66,7 +66,71 @@ p_atomic_cmpxchg(struct pipe_atomic *v, int32_t old, int32_t new)
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return __sync_val_compare_and_swap(&v->count, old, new);
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}
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#elif (defined(PIPE_SUBSYSTEM_WINDOWS_USER)) /* (defined(PIPE_CC_GCC)) */
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#elif (defined(PIPE_ARCH_X86) && defined(PIPE_CC_MSVC)) /* (defined(PIPE_CC_GCC)) */
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struct pipe_atomic
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{
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int32_t count;
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};
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#define p_atomic_set(_v, _i) ((_v)->count = (_i))
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#define p_atomic_read(_v) ((_v)->count)
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static INLINE boolean
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p_atomic_dec_zero(struct pipe_atomic *v)
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{
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int32_t *pcount = &v->count;
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unsigned char c;
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__asm {
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mov eax, [pcount]
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lock dec dword ptr [eax]
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sete byte ptr [c]
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}
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return c != 0;
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}
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static INLINE void
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p_atomic_inc(struct pipe_atomic *v)
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{
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int32_t *pcount = &v->count;
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__asm {
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mov eax, [pcount]
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lock inc dword ptr [eax]
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}
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}
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static INLINE void
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p_atomic_dec(struct pipe_atomic *v)
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{
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int32_t *pcount = &v->count;
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__asm {
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mov eax, [pcount]
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lock dec dword ptr [eax]
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}
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}
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static INLINE int32_t
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p_atomic_cmpxchg(struct pipe_atomic *v, int32_t old, int32_t new)
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{
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int32_t *pcount = &v->count;
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int32_t orig;
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__asm {
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mov ecx, [pcount]
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mov eax, [old]
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mov edx, [new]
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lock cmpxchg [ecx], edx
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mov [orig], eax
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}
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return orig;
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}
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#elif (defined(PIPE_SUBSYSTEM_WINDOWS_USER)) /* (defined(PIPE_ARCH_X86) && defined(PIPE_CC_MSVC)) */
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struct pipe_atomic
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{
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