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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 "components/exo/compositor_frame_sink_holder.h" | |
6 | |
7 #include "cc/resources/returned_resource.h" | |
8 #include "components/exo/surface.h" | |
9 | |
10 namespace exo { | |
11 | |
12 //////////////////////////////////////////////////////////////////////////////// | |
13 // CompositorFrameSinkHolder, public: | |
14 | |
15 CompositorFrameSinkHolder::CompositorFrameSinkHolder( | |
16 cc::mojom::MojoCompositorFrameSinkPtr compositor_frame_sink, | |
17 Surface* surface, | |
18 cc::mojom::MojoCompositorFrameSinkClientRequest request) | |
19 : compositor_frame_sink_(std::move(compositor_frame_sink)), | |
20 surface_(surface), | |
21 begin_frame_source_(base::MakeUnique<cc::ExternalBeginFrameSource>(this)), | |
22 binding_(this, std::move(request)), | |
23 weak_factory_(this) { | |
24 surface_->AddSurfaceObserver(this); | |
25 } | |
26 | |
27 bool CompositorFrameSinkHolder::HasReleaseCallbacksForResource( | |
28 cc::ResourceId id) { | |
29 return release_callbacks_.find(id) != release_callbacks_.end(); | |
30 } | |
31 | |
32 void CompositorFrameSinkHolder::AddResourceReleaseCallback( | |
33 cc::ResourceId id, | |
34 std::unique_ptr<cc::SingleReleaseCallback> callback) { | |
35 release_callbacks_[id] = std::make_pair(this, std::move(callback)); | |
36 } | |
37 | |
38 void CompositorFrameSinkHolder::ActivateFrameCallbacks( | |
39 std::list<FrameCallback>* frame_callbacks) { | |
40 active_frame_callbacks_.splice(active_frame_callbacks_.end(), | |
41 *frame_callbacks); | |
42 UpdateNeedsBeginFrame(); | |
43 } | |
44 | |
45 void CompositorFrameSinkHolder::CancelFrameCallbacks() { | |
46 // Call pending frame callbacks with a null frame time to indicate that they | |
47 // have been cancelled. | |
48 for (const auto& frame_callback : active_frame_callbacks_) | |
49 frame_callback.Run(base::TimeTicks()); | |
50 } | |
51 | |
52 void CompositorFrameSinkHolder::SetNeedsBeginFrame(bool needs_begin_frame) { | |
53 needs_begin_frame_ = needs_begin_frame; | |
54 OnNeedsBeginFrames(needs_begin_frame); | |
55 } | |
56 | |
57 //////////////////////////////////////////////////////////////////////////////// | |
58 // cc::mojom::MojoCompositorFrameSinkClient overrides: | |
59 | |
60 void CompositorFrameSinkHolder::DidReceiveCompositorFrameAck() { | |
61 // TODO(staraz): Implement this | |
62 } | |
63 | |
64 void CompositorFrameSinkHolder::OnBeginFrame(const cc::BeginFrameArgs& args) { | |
65 while (!active_frame_callbacks_.empty()) { | |
66 active_frame_callbacks_.front().Run(args.frame_time); | |
67 active_frame_callbacks_.pop_front(); | |
68 } | |
69 begin_frame_source_->OnBeginFrame(args); | |
70 } | |
71 | |
72 void CompositorFrameSinkHolder::ReclaimResources( | |
73 const cc::ReturnedResourceArray& resources) { | |
74 scoped_refptr<CompositorFrameSinkHolder> holder(this); | |
reveman
2016/12/07 22:13:37
I haven't seen this pattern used elsewhere in chro
Alex Z.
2016/12/09 16:16:27
Done.
reveman
2016/12/09 16:33:59
I'm still seeing release_callbacks_ accessed below
Alex Z.
2016/12/09 19:47:11
I am moving the release callback to a local variab
| |
75 for (auto& resource : resources) { | |
76 auto it = release_callbacks_.find(resource.id); | |
77 DCHECK(it != release_callbacks_.end()); | |
78 it->second.second->Run(resource.sync_token, resource.lost); | |
79 release_callbacks_.erase(it); | |
80 } | |
81 } | |
82 | |
83 void CompositorFrameSinkHolder::WillDrawSurface() { | |
84 if (surface_) | |
85 surface_->WillDraw(); | |
86 | |
87 UpdateNeedsBeginFrame(); | |
88 } | |
89 | |
90 //////////////////////////////////////////////////////////////////////////////// | |
91 // cc::BeginFrameObserver overrides: | |
92 | |
93 const cc::BeginFrameArgs& CompositorFrameSinkHolder::LastUsedBeginFrameArgs() | |
94 const { | |
95 return last_begin_frame_args_; | |
96 } | |
97 | |
98 void CompositorFrameSinkHolder::OnBeginFrameSourcePausedChanged(bool paused) {} | |
99 | |
100 //////////////////////////////////////////////////////////////////////////////// | |
101 // cc::ExternalBeginFrameSouceClient overrides: | |
102 | |
103 void CompositorFrameSinkHolder::OnNeedsBeginFrames(bool needs_begin_frames) { | |
104 compositor_frame_sink_->SetNeedsBeginFrame(needs_begin_frames); | |
105 } | |
106 | |
107 //////////////////////////////////////////////////////////////////////////////// | |
108 // SurfaceObserver overrides: | |
109 | |
110 void CompositorFrameSinkHolder::OnSurfaceDestroying(Surface* surface) { | |
111 surface_->RemoveSurfaceObserver(this); | |
112 surface_ = nullptr; | |
113 } | |
114 | |
115 //////////////////////////////////////////////////////////////////////////////// | |
116 // ExoComopositorFrameSink, private: | |
117 | |
118 CompositorFrameSinkHolder::~CompositorFrameSinkHolder() {} | |
119 | |
120 void CompositorFrameSinkHolder::UpdateNeedsBeginFrame() { | |
121 if (!begin_frame_source_) | |
122 return; | |
123 | |
124 bool needs_begin_frame = !active_frame_callbacks_.empty(); | |
125 if (needs_begin_frame == needs_begin_frame_) | |
126 return; | |
127 | |
128 needs_begin_frame_ = needs_begin_frame; | |
129 OnNeedsBeginFrames(needs_begin_frame_); | |
130 } | |
131 | |
132 } // namespace exo | |
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