blob: ec21663f203a160c4feaf7881dc488aa78ba1d36 (
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
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
// Copyright 2014 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 ANDROID_WEBVIEW_BROWSER_SHARED_RENDERER_STATE_H_
#define ANDROID_WEBVIEW_BROWSER_SHARED_RENDERER_STATE_H_
#include "base/message_loop/message_loop_proxy.h"
#include "base/synchronization/lock.h"
#include "content/public/browser/android/synchronous_compositor.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/vector2d.h"
namespace android_webview {
class BrowserViewRendererClient;
// Set by BrowserViewRenderer and read by HardwareRenderer.
struct DrawGLInput {
unsigned int frame_id;
gfx::Rect global_visible_rect;
gfx::Vector2d scroll_offset;
int width;
int height;
DrawGLInput();
};
// Set by HardwareRenderer and read by BrowserViewRenderer.
struct DrawGLResult {
unsigned int frame_id;
bool clip_contains_visible_rect;
DrawGLResult();
};
// This class holds renderer state that is shared between UI and RT threads.
// Android framework will block the UI thread when RT is drawing, so no locking
// is needed in this class. In the interim, this class is also responsible for
// thread hopping that should eventually be removed once RT support work is
// complete.
class SharedRendererState {
public:
SharedRendererState(scoped_refptr<base::MessageLoopProxy> ui_loop,
BrowserViewRendererClient* client);
~SharedRendererState();
void ClientRequestDrawGL();
// This function should only be called on UI thread.
void SetCompositorOnUiThread(content::SynchronousCompositor* compositor);
// This function can be called on both UI and RT thread.
content::SynchronousCompositor* GetCompositor();
void SetDrawGLInput(const DrawGLInput& input);
DrawGLInput GetDrawGLInput() const;
private:
void ClientRequestDrawGLOnUIThread();
scoped_refptr<base::MessageLoopProxy> ui_loop_;
// TODO(boliu): Remove |client_on_ui_| from shared state.
BrowserViewRendererClient* client_on_ui_;
base::WeakPtrFactory<SharedRendererState> weak_factory_on_ui_thread_;
base::WeakPtr<SharedRendererState> ui_thread_weak_ptr_;
// Accessed by both UI and RT thread.
mutable base::Lock lock_;
content::SynchronousCompositor* compositor_;
DrawGLInput draw_gl_input_;
};
} // namespace android_webview
#endif // ANDROID_WEBVIEW_BROWSER_SHARED_RENDERER_STATE_H_
|
