Mesa (master): gallium: Implement atomic interface for windows user mode subsystem.
MichaŠKról
michal at kemper.freedesktop.org
Mon Mar 16 12:15:54 UTC 2009
Module: Mesa
Branch: master
Commit: a7d42e11b4e97f19eaeb3b5ee811f04adb05b13d
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=a7d42e11b4e97f19eaeb3b5ee811f04adb05b13d
Author: Michal Krol <michal at vmware.com>
Date: Mon Mar 16 13:07:22 2009 +0100
gallium: Implement atomic interface for windows user mode subsystem.
---
src/gallium/include/pipe/p_atomic.h | 36 ++++++++++++++++++++++++++++++++++-
1 files changed, 35 insertions(+), 1 deletions(-)
diff --git a/src/gallium/include/pipe/p_atomic.h b/src/gallium/include/pipe/p_atomic.h
index 773ae98..13866d2 100644
--- a/src/gallium/include/pipe/p_atomic.h
+++ b/src/gallium/include/pipe/p_atomic.h
@@ -66,7 +66,41 @@ p_atomic_cmpxchg(struct pipe_atomic *v, int32_t old, int32_t new)
return __sync_val_compare_and_swap(&v->count, old, new);
}
-#else /* (defined(PIPE_CC_GCC)) */
+#elif (defined(PIPE_SUBSYSTEM_WINDOWS_USER)) /* (defined(PIPE_CC_GCC)) */
+
+struct pipe_atomic
+{
+ long count;
+};
+
+#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);
+}
+
+static INLINE void
+p_atomic_inc(struct pipe_atomic *v)
+{
+ InterlockedIncrement(&v->count);
+}
+
+static INLINE void
+p_atomic_dec(struct pipe_atomic *v)
+{
+ 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);
+}
+
+#else /* (defined(PIPE_SUBSYSTEM_WINDOWS_USER)) */
#include "pipe/p_thread.h"
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