blob: 5d51fafefb7eab2c9c03186d4293ff382ee6ed30 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
// Copyright 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_TREES_LAYER_TREE_HOST_CLIENT_H_
#define CC_TREES_LAYER_TREE_HOST_CLIENT_H_
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/time/time.h"
namespace gfx {
class Vector2d;
}
namespace cc {
class ContextProvider;
class InputHandlerClient;
class OutputSurface;
struct BeginFrameArgs;
class LayerTreeHostClient {
public:
virtual void WillBeginMainFrame(int frame_id) = 0;
// Marks finishing compositing-related tasks on the main thread. In threaded
// mode, this corresponds to DidCommit().
virtual void BeginMainFrame(const BeginFrameArgs& args) = 0;
virtual void DidBeginMainFrame() = 0;
virtual void Layout() = 0;
virtual void ApplyScrollAndScale(const gfx::Vector2d& scroll_delta,
float page_scale) = 0;
// Creates an OutputSurface. If fallback is true, it should attempt to
// create an OutputSurface that is guaranteed to initialize correctly.
virtual scoped_ptr<OutputSurface> CreateOutputSurface(bool fallback) = 0;
virtual void DidInitializeOutputSurface() = 0;
virtual void WillCommit() = 0;
virtual void DidCommit() = 0;
virtual void DidCommitAndDrawFrame() = 0;
virtual void DidCompleteSwapBuffers() = 0;
// Requests that the client insert a rate limiting token in the shared main
// thread context's command stream that will block if the context gets too far
// ahead of the compositor's command stream. Only needed if the tree contains
// a TextureLayer that calls SetRateLimitContext(true).
virtual void RateLimitSharedMainThreadContext() {}
// This hook is for testing.
virtual void DidFailToInitializeOutputSurface() {}
protected:
virtual ~LayerTreeHostClient() {}
};
} // namespace cc
#endif // CC_TREES_LAYER_TREE_HOST_CLIENT_H_
|
