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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /media/ffvpx/libavutil/atomic_win32.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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diff --git a/media/ffvpx/libavutil/atomic_win32.h b/media/ffvpx/libavutil/atomic_win32.h
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+/*
+ * Copyright (c) 2012 Ronald S. Bultje <rsbultje@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_ATOMIC_WIN32_H
+#define AVUTIL_ATOMIC_WIN32_H
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+#define avpriv_atomic_int_get atomic_int_get_win32
+static inline int atomic_int_get_win32(volatile int *ptr)
+{
+ MemoryBarrier();
+ return *ptr;
+}
+
+#define avpriv_atomic_int_set atomic_int_set_win32
+static inline void atomic_int_set_win32(volatile int *ptr, int val)
+{
+ *ptr = val;
+ MemoryBarrier();
+}
+
+#define avpriv_atomic_int_add_and_fetch atomic_int_add_and_fetch_win32
+static inline int atomic_int_add_and_fetch_win32(volatile int *ptr, int inc)
+{
+ return inc + InterlockedExchangeAdd(ptr, inc);
+}
+
+#define avpriv_atomic_ptr_cas atomic_ptr_cas_win32
+static inline void *atomic_ptr_cas_win32(void * volatile *ptr,
+ void *oldval, void *newval)
+{
+ return InterlockedCompareExchangePointer(ptr, newval, oldval);
+}
+
+#endif /* AVUTIL_ATOMIC_WIN32_H */