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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::RegisterFrameSinkToParent( | |
31 const cc::FrameSinkId& child_frame_sink_id) { | |
32 auto surface_iter = registered_surface_instances_.find(child_frame_sink_id); | |
33 if (surface_iter == registered_surface_instances_.end()) | |
34 return; | |
35 OffscreenCanvasSurfaceImpl* surfaceImpl = surface_iter->second; | |
36 if (surfaceImpl->parent_frame_sink_id().is_valid()) { | |
37 GetSurfaceManager()->RegisterFrameSinkHierarchy( | |
38 surfaceImpl->parent_frame_sink_id(), child_frame_sink_id); | |
39 } | |
40 } | |
41 | |
42 void OffscreenCanvasSurfaceManager::UnregisterFrameSinkFromParent( | |
43 const cc::FrameSinkId& child_frame_sink_id) { | |
44 auto surface_iter = registered_surface_instances_.find(child_frame_sink_id); | |
45 if (surface_iter == registered_surface_instances_.end()) | |
46 return; | |
47 OffscreenCanvasSurfaceImpl* surfaceImpl = surface_iter->second; | |
48 if (surfaceImpl->parent_frame_sink_id().is_valid()) { | |
49 GetSurfaceManager()->UnregisterFrameSinkHierarchy( | |
50 surfaceImpl->parent_frame_sink_id(), child_frame_sink_id); | |
51 } | |
52 } | |
53 | |
54 void OffscreenCanvasSurfaceManager::OnSurfaceCreated( | |
55 const cc::SurfaceInfo& surface_info) { | |
56 auto surface_iter = | |
57 registered_surface_instances_.find(surface_info.id().frame_sink_id()); | |
58 if (surface_iter == registered_surface_instances_.end()) | |
59 return; | |
60 OffscreenCanvasSurfaceImpl* surfaceImpl = surface_iter->second; | |
61 surfaceImpl->OnSurfaceCreated(surface_info); | |
62 } | |
63 | |
64 void OffscreenCanvasSurfaceManager::RegisterOffscreenCanvasSurfaceInstance( | |
65 const cc::FrameSinkId& frame_sink_id, | |
66 OffscreenCanvasSurfaceImpl* surface_instance) { | |
67 DCHECK(surface_instance); | |
68 DCHECK_EQ(registered_surface_instances_.count(frame_sink_id), 0u); | |
69 registered_surface_instances_[frame_sink_id] = surface_instance; | |
70 } | |
71 | |
72 void OffscreenCanvasSurfaceManager::UnregisterOffscreenCanvasSurfaceInstance( | |
73 const cc::FrameSinkId& frame_sink_id) { | |
74 DCHECK_EQ(registered_surface_instances_.count(frame_sink_id), 1u); | |
75 registered_surface_instances_.erase(frame_sink_id); | |
76 } | |
77 | |
78 OffscreenCanvasSurfaceImpl* OffscreenCanvasSurfaceManager::GetSurfaceInstance( | |
79 const cc::FrameSinkId& frame_sink_id) { | |
80 auto search = registered_surface_instances_.find(frame_sink_id); | |
81 if (search != registered_surface_instances_.end()) { | |
82 return search->second; | |
83 } | |
84 return nullptr; | |
85 } | |
86 | |
87 } // namespace content | |
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