OLD | NEW |
(Empty) | |
| 1 // Copyright 2016 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/lazy_instance.h" |
| 6 #include "cc/surfaces/surface_manager.h" |
| 7 #include "content/browser/compositor/surface_utils.h" |
| 8 #include "content/browser/renderer_host/offscreen_canvas_surface_manager.h" |
| 9 |
| 10 namespace content { |
| 11 |
| 12 namespace { |
| 13 base::LazyInstance<OffscreenCanvasSurfaceManager>::Leaky g_manager = |
| 14 LAZY_INSTANCE_INITIALIZER; |
| 15 } |
| 16 |
| 17 OffscreenCanvasSurfaceManager::OffscreenCanvasSurfaceManager() { |
| 18 GetSurfaceManager()->AddObserver(this); |
| 19 } |
| 20 |
| 21 OffscreenCanvasSurfaceManager::~OffscreenCanvasSurfaceManager() { |
| 22 registered_surface_instances_.clear(); |
| 23 GetSurfaceManager()->RemoveObserver(this); |
| 24 } |
| 25 |
| 26 OffscreenCanvasSurfaceManager* OffscreenCanvasSurfaceManager::GetInstance() { |
| 27 return g_manager.Pointer(); |
| 28 } |
| 29 |
| 30 void OffscreenCanvasSurfaceManager::RegisterOffscreenCanvasSurfaceInstance( |
| 31 cc::FrameSinkId frame_sink_id, |
| 32 OffscreenCanvasSurfaceImpl* surface_instance) { |
| 33 DCHECK(surface_instance); |
| 34 DCHECK_EQ(registered_surface_instances_.count(frame_sink_id), 0u); |
| 35 registered_surface_instances_[frame_sink_id] = surface_instance; |
| 36 } |
| 37 |
| 38 void OffscreenCanvasSurfaceManager::UnregisterOffscreenCanvasSurfaceInstance( |
| 39 cc::FrameSinkId frame_sink_id) { |
| 40 DCHECK_EQ(registered_surface_instances_.count(frame_sink_id), 1u); |
| 41 registered_surface_instances_.erase(frame_sink_id); |
| 42 } |
| 43 |
| 44 OffscreenCanvasSurfaceImpl* OffscreenCanvasSurfaceManager::GetSurfaceInstance( |
| 45 cc::FrameSinkId frame_sink_id) { |
| 46 auto search = registered_surface_instances_.find(frame_sink_id); |
| 47 if (search != registered_surface_instances_.end()) { |
| 48 return search->second; |
| 49 } |
| 50 return nullptr; |
| 51 } |
| 52 |
| 53 } // namespace content |
OLD | NEW |