text: /*
   * 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 */
  