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 base::StaticAtomicSequenceNumber g_next_timeline_id;
  13 base::StaticAtomicSequenceNumber g_next_player_id;
  14
  15 int AnimationIdProvider::NextAnimationId() {
  16   // Animation IDs start from 1.
  17   return g_next_animation_id.GetNext() + 1;
  18 }
  19
  20 int AnimationIdProvider::NextGroupId() {
  21   // Animation group IDs start from 1.
  22   return g_next_group_id.GetNext() + 1;
  23 }
  24
  25 int AnimationIdProvider::NextTimelineId() {
  26   return g_next_timeline_id.GetNext() + 1;
  27 }
  28
  29 int AnimationIdProvider::NextPlayerId() {
  30   return g_next_player_id.GetNext() + 1;
  31 }
  32
  33 }  // namespace cc