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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
reveman
2016/11/16 03:48:38
Why does this need to be in a new file when it's o
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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 <list> | |
6 #include <memory> | |
7 #include <set> | |
8 #include <utility> | |
9 | |
10 #include "base/callback.h" | |
11 #include "base/macros.h" | |
12 #include "base/memory/ref_counted.h" | |
13 #include "base/memory/weak_ptr.h" | |
14 #include "base/observer_list.h" | |
15 #include "cc/ipc/compositor_frame.mojom.h" | |
16 #include "cc/ipc/mojo_compositor_frame_sink.mojom.h" | |
17 #include "cc/resources/transferable_resource.h" | |
18 #include "cc/scheduler/begin_frame_source.h" | |
19 #include "cc/surfaces/surface_factory.h" | |
20 #include "cc/surfaces/surface_factory_client.h" | |
21 #include "cc/surfaces/surface_id_allocator.h" | |
22 #include "mojo/public/cpp/bindings/binding.h" | |
23 #include "third_party/skia/include/core/SkRegion.h" | |
24 #include "third_party/skia/include/core/SkXfermode.h" | |
25 #include "ui/aura/window.h" | |
26 #include "ui/aura/window_observer.h" | |
27 #include "ui/gfx/geometry/rect.h" | |
28 | |
29 namespace cc { | |
30 class SurfaceFactory; | |
31 } | |
32 | |
33 namespace exo { | |
34 | |
35 // This class owns the SurfaceFactory and keeps track of references to the | |
36 // contents of Buffers. It's keeped alive by references from | |
37 // release_callbacks_. It's destroyed when its owning Surface is destroyed and | |
38 // the last outstanding release callback is called. | |
39 class ExoCompositorFrameSink : public base::RefCounted<ExoCompositorFrameSink>, | |
reveman
2016/11/16 03:48:38
Exo is typically not used as a prefix inside the e
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40 public cc::SurfaceFactoryClient, | |
41 public cc::BeginFrameObserver { | |
42 public: | |
43 ExoCompositorFrameSink(const cc::FrameSinkId& frame_sink_id, | |
44 cc::SurfaceManager* surface_manager); | |
45 | |
46 // cc::SurfaceFactoryClient: | |
47 void ReturnResources(const cc::ReturnedResourceArray& resources) override; | |
48 void WillDrawSurface(const cc::LocalFrameId& id, | |
49 const gfx::Rect& damage_rect) override; | |
50 void SetBeginFrameSource(cc::BeginFrameSource* begin_frame_source) override; | |
51 | |
52 // To be cc::mojom::MojoCompositorFrameSink: | |
53 void SubmitCompositorFrame(cc::CompositorFrame frame); | |
54 | |
55 // cc::BeginFrameObserver: | |
56 void OnBeginFrame(const cc::BeginFrameArgs& args) override; | |
57 const cc::BeginFrameArgs& LastUsedBeginFrameArgs() const override; | |
58 void OnBeginFrameSourcePausedChanged(bool paused) override; | |
59 | |
60 const cc::FrameSinkId& frame_sink_id() { return frame_sink_id_; } | |
Fady Samuel
2016/11/15 23:19:46
nit: do you need this?
Alex Z.
2016/11/16 14:55:46
Done.
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61 cc::SurfaceManager* surface_manager() { return surface_manager_; } | |
Fady Samuel
2016/11/15 23:19:46
nit: do you need this?
Alex Z.
2016/11/16 14:55:46
Yes. In CommitSurfaceHierarchy(), the SurfaceManag
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62 | |
63 private: | |
64 friend class base::RefCounted<ExoCompositorFrameSink>; | |
65 friend class Surface; | |
66 | |
67 ~ExoCompositorFrameSink() override; | |
68 void UpdateNeedsBeginFrameInternal(); | |
69 void DidRecieveCompositorFrameAck(); | |
70 | |
71 std::map<int, | |
72 std::pair<scoped_refptr<ExoCompositorFrameSink>, | |
73 std::unique_ptr<cc::SingleReleaseCallback>>> | |
74 release_callbacks_; | |
Fady Samuel
2016/11/15 23:19:46
What is this for?
Alex Z.
2016/11/16 14:55:46
I don't fully understand this part, but it seems t
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75 cc::FrameSinkId frame_sink_id_; | |
Fady Samuel
2016/11/15 23:19:46
Mark as const.
Alex Z.
2016/11/23 14:25:03
Done.
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76 cc::LocalFrameId local_frame_id_; | |
77 cc::SurfaceIdAllocator id_allocator_; | |
78 | |
79 cc::SurfaceManager* surface_manager_; | |
80 cc::SurfaceFactory surface_factory_; | |
81 | |
82 int ack_pending_count_ = 0; | |
83 | |
84 cc::BeginFrameSource* begin_frame_source_ = nullptr; | |
85 | |
86 gfx::Size last_submitted_frame_size_; | |
87 | |
88 cc::BeginFrameArgs last_begin_frame_args_; | |
89 | |
90 bool needs_begin_frame_ = false; | |
91 bool added_frame_observer_ = false; | |
92 }; | |
93 | |
94 } // namespace exo | |
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