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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CC_TREES_LAYER_TREE_HOST_CLIENT_H_ | 5 #ifndef CC_TREES_LAYER_TREE_HOST_CLIENT_H_ |
6 #define CC_TREES_LAYER_TREE_HOST_CLIENT_H_ | 6 #define CC_TREES_LAYER_TREE_HOST_CLIENT_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 | 9 |
10 #include "base/memory/ref_counted.h" | 10 #include "base/memory/ref_counted.h" |
11 | 11 |
12 namespace gfx { | 12 namespace gfx { |
13 class Vector2d; | 13 class Vector2d; |
14 class Vector2dF; | 14 class Vector2dF; |
15 } | 15 } |
16 | 16 |
17 namespace cc { | 17 namespace cc { |
18 class ContextProvider; | 18 class ContextProvider; |
19 class InputHandlerClient; | 19 class InputHandlerClient; |
20 class OutputSurface; | 20 class CompositorFrameSink; |
21 struct BeginFrameArgs; | 21 struct BeginFrameArgs; |
22 | 22 |
23 class LayerTreeHostClient { | 23 class LayerTreeHostClient { |
24 public: | 24 public: |
25 virtual void WillBeginMainFrame() = 0; | 25 virtual void WillBeginMainFrame() = 0; |
26 // Marks finishing compositing-related tasks on the main thread. In threaded | 26 // Marks finishing compositing-related tasks on the main thread. In threaded |
27 // mode, this corresponds to DidCommit(). | 27 // mode, this corresponds to DidCommit(). |
28 virtual void BeginMainFrame(const BeginFrameArgs& args) = 0; | 28 virtual void BeginMainFrame(const BeginFrameArgs& args) = 0; |
29 virtual void BeginMainFrameNotExpectedSoon() = 0; | 29 virtual void BeginMainFrameNotExpectedSoon() = 0; |
30 virtual void DidBeginMainFrame() = 0; | 30 virtual void DidBeginMainFrame() = 0; |
31 // A LayerTreeHost is bound to a LayerTreeHostClient. Visual frame-based | 31 // A LayerTreeHost is bound to a LayerTreeHostClient. Visual frame-based |
32 // updates to the state of the LayerTreeHost are expected to happen only in | 32 // updates to the state of the LayerTreeHost are expected to happen only in |
33 // calls to LayerTreeHostClient::UpdateLayerTreeHost, which should | 33 // calls to LayerTreeHostClient::UpdateLayerTreeHost, which should |
34 // mutate/invalidate the layer tree or other page parameters as appropriate. | 34 // mutate/invalidate the layer tree or other page parameters as appropriate. |
35 // | 35 // |
36 // An example of a LayerTreeHostClient is (via additional indirections) Blink, | 36 // An example of a LayerTreeHostClient is (via additional indirections) Blink, |
37 // which inside of LayerTreeHostClient::UpdateLayerTreeHost will update | 37 // which inside of LayerTreeHostClient::UpdateLayerTreeHost will update |
38 // (Blink's notions of) style, layout, paint invalidation and compositing | 38 // (Blink's notions of) style, layout, paint invalidation and compositing |
39 // state. (The "compositing state" will result in a mutated layer tree on the | 39 // state. (The "compositing state" will result in a mutated layer tree on the |
40 // LayerTreeHost via additional interface indirections which lead back to | 40 // LayerTreeHost via additional interface indirections which lead back to |
41 // mutations on the LayerTreeHost.) | 41 // mutations on the LayerTreeHost.) |
42 virtual void UpdateLayerTreeHost() = 0; | 42 virtual void UpdateLayerTreeHost() = 0; |
43 virtual void ApplyViewportDeltas( | 43 virtual void ApplyViewportDeltas( |
44 const gfx::Vector2dF& inner_delta, | 44 const gfx::Vector2dF& inner_delta, |
45 const gfx::Vector2dF& outer_delta, | 45 const gfx::Vector2dF& outer_delta, |
46 const gfx::Vector2dF& elastic_overscroll_delta, | 46 const gfx::Vector2dF& elastic_overscroll_delta, |
47 float page_scale, | 47 float page_scale, |
48 float top_controls_delta) = 0; | 48 float top_controls_delta) = 0; |
49 // Request an OutputSurface from the client. When the client has one it should | 49 // Request an CompositorFrameSink from the client. When the client has one it |
50 // call LayerTreeHost::SetOutputSurface. This will result in either | 50 // should |
enne (OOO)
2016/09/14 00:35:45
Comment formatting part #infinity
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51 // DidFailToInitializeOutputSurface or DidInitializeOutputSurface being | 51 // call LayerTreeHost::SetCompositorFrameSink. This will result in either |
52 // DidFailToInitializeCompositorFrameSink or DidInitializeCompositorFrameSink | |
53 // being | |
52 // called. | 54 // called. |
53 virtual void RequestNewOutputSurface() = 0; | 55 virtual void RequestNewCompositorFrameSink() = 0; |
54 virtual void DidInitializeOutputSurface() = 0; | 56 virtual void DidInitializeCompositorFrameSink() = 0; |
55 virtual void DidFailToInitializeOutputSurface() = 0; | 57 virtual void DidFailToInitializeCompositorFrameSink() = 0; |
56 virtual void WillCommit() = 0; | 58 virtual void WillCommit() = 0; |
57 virtual void DidCommit() = 0; | 59 virtual void DidCommit() = 0; |
58 virtual void DidCommitAndDrawFrame() = 0; | 60 virtual void DidCommitAndDrawFrame() = 0; |
59 virtual void DidCompleteSwapBuffers() = 0; | 61 virtual void DidCompleteSwapBuffers() = 0; |
60 virtual void DidCompletePageScaleAnimation() = 0; | 62 virtual void DidCompletePageScaleAnimation() = 0; |
61 | 63 |
62 protected: | 64 protected: |
63 virtual ~LayerTreeHostClient() {} | 65 virtual ~LayerTreeHostClient() {} |
64 }; | 66 }; |
65 | 67 |
66 } // namespace cc | 68 } // namespace cc |
67 | 69 |
68 #endif // CC_TREES_LAYER_TREE_HOST_CLIENT_H_ | 70 #endif // CC_TREES_LAYER_TREE_HOST_CLIENT_H_ |
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