cc/animation/animation_id_provider.cc

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/atomic_sequence_num.h"
   6 #include "cc/animation/animation_id_provider.h"
   7
   8 namespace cc {
   9
  10 base::StaticAtomicSequenceNumber g_next_animation_id;
  11 base::StaticAtomicSequenceNumber g_next_group_id;
  12
  13 int AnimationIdProvider::NextAnimationId() {
  14   // Animation IDs start from 1.
  15   return g_next_animation_id.GetNext() + 1;
  16 }
  17
  18 int AnimationIdProvider::NextGroupId() {
  19   // Animation group IDs start from 1.
  20   return g_next_group_id.GetNext() + 1;
  21 }
  22
  23 }  // namespace cc