cc/surfaces/surface_manager.cc

   1 // Copyright 2014 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 "cc/surfaces/surface_manager.h"
   6
   7 #include "base/logging.h"
   8
   9 namespace cc {
  10
  11 SurfaceManager::SurfaceManager()
  12     : next_surface_id_(1) {
  13 }
  14
  15 SurfaceManager::~SurfaceManager() {}
  16
  17 int SurfaceManager::RegisterAndAllocateIDForSurface(Surface* surface) {
  18   DCHECK(surface);
  19   int surface_id = next_surface_id_++;
  20   surface_map_[surface_id] = surface;
  21   return surface_id;
  22 }
  23
  24 void SurfaceManager::DeregisterSurface(int surface_id) {
  25   SurfaceMap::iterator it = surface_map_.find(surface_id);
  26   DCHECK(it != surface_map_.end());
  27   surface_map_.erase(it);
  28 }
  29
  30 Surface* SurfaceManager::GetSurfaceForID(int surface_id) {
  31   SurfaceMap::iterator it = surface_map_.find(surface_id);
  32   if (it == surface_map_.end())
  33     return NULL;
  34   return it->second;
  35 }
  36
  37 }  // namespace cc