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
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
// Copyright 2011 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_SINGLE_THREAD_PROXY_H_
#define CC_TREES_SINGLE_THREAD_PROXY_H_
#include <limits>
#include "base/time/time.h"
#include "cc/animation/animation_events.h"
#include "cc/output/begin_frame_args.h"
#include "cc/trees/layer_tree_host_impl.h"
#include "cc/trees/proxy.h"
namespace cc {
class ContextProvider;
class LayerTreeHost;
class SingleThreadProxy : public Proxy, LayerTreeHostImplClient {
public:
static scoped_ptr<Proxy> Create(LayerTreeHost* layer_tree_host);
virtual ~SingleThreadProxy();
// Proxy implementation
virtual bool CompositeAndReadback(void* pixels, gfx::Rect rect) OVERRIDE;
virtual void FinishAllRendering() OVERRIDE;
virtual bool IsStarted() const OVERRIDE;
virtual void SetLayerTreeHostClientReady() OVERRIDE;
virtual void SetVisible(bool visible) OVERRIDE;
virtual void CreateAndInitializeOutputSurface() OVERRIDE;
virtual const RendererCapabilities& GetRendererCapabilities() const OVERRIDE;
virtual void SetNeedsAnimate() OVERRIDE;
virtual void SetNeedsCommit() OVERRIDE;
virtual void SetNeedsRedraw(gfx::Rect damage_rect) OVERRIDE;
virtual void SetDeferCommits(bool defer_commits) OVERRIDE;
virtual bool CommitRequested() const OVERRIDE;
virtual void MainThreadHasStoppedFlinging() OVERRIDE {}
virtual void Start(scoped_ptr<OutputSurface> first_output_surface) OVERRIDE;
virtual void Stop() OVERRIDE;
virtual size_t MaxPartialTextureUpdates() const OVERRIDE;
virtual void AcquireLayerTextures() OVERRIDE {}
virtual void ForceSerializeOnSwapBuffers() OVERRIDE;
virtual scoped_ptr<base::Value> AsValue() const OVERRIDE;
virtual bool CommitPendingForTesting() OVERRIDE;
// LayerTreeHostImplClient implementation
virtual void DidTryInitializeRendererOnImplThread(
bool success,
scoped_refptr<ContextProvider> offscreen_context_provider) OVERRIDE;
virtual void DidLoseOutputSurfaceOnImplThread() OVERRIDE;
virtual void OnSwapBuffersCompleteOnImplThread() OVERRIDE {}
virtual void BeginFrameOnImplThread(const BeginFrameArgs& args)
OVERRIDE {}
virtual void OnCanDrawStateChanged(bool can_draw) OVERRIDE;
virtual void OnHasPendingTreeStateChanged(bool have_pending_tree) OVERRIDE;
virtual void SetNeedsRedrawOnImplThread() OVERRIDE;
virtual void SetNeedsRedrawRectOnImplThread(gfx::Rect dirty_rect) OVERRIDE;
virtual void DidInitializeVisibleTileOnImplThread() OVERRIDE;
virtual void SetNeedsCommitOnImplThread() OVERRIDE;
virtual void PostAnimationEventsToMainThreadOnImplThread(
scoped_ptr<AnimationEventsVector> events,
base::Time wall_clock_time) OVERRIDE;
virtual bool ReduceContentsTextureMemoryOnImplThread(
size_t limit_bytes,
int priority_cutoff) OVERRIDE;
virtual void ReduceWastedContentsTextureMemoryOnImplThread() OVERRIDE;
virtual void SendManagedMemoryStats() OVERRIDE;
virtual bool IsInsideDraw() OVERRIDE;
virtual void RenewTreePriority() OVERRIDE {}
virtual void RequestScrollbarAnimationOnImplThread(base::TimeDelta delay)
OVERRIDE {}
virtual void DidActivatePendingTree() OVERRIDE {}
// Called by the legacy path where RenderWidget does the scheduling.
void CompositeImmediately(base::TimeTicks frame_begin_time);
private:
explicit SingleThreadProxy(LayerTreeHost* layer_tree_host);
void OnOutputSurfaceInitializeAttempted(bool success);
bool CommitAndComposite(base::TimeTicks frame_begin_time,
gfx::Rect device_viewport_damage_rect,
bool for_readback,
LayerTreeHostImpl::FrameData* frame);
void DoCommit(scoped_ptr<ResourceUpdateQueue> queue);
bool DoComposite(
scoped_refptr<cc::ContextProvider> offscreen_context_provider,
base::TimeTicks frame_begin_time,
gfx::Rect device_viewport_damage_rect,
bool for_readback,
LayerTreeHostImpl::FrameData* frame);
void DidSwapFrame();
bool ShouldComposite() const;
// Accessed on main thread only.
LayerTreeHost* layer_tree_host_;
bool created_offscreen_context_provider_;
// Holds the first output surface passed from Start. Should not be used for
// anything else.
scoped_ptr<OutputSurface> first_output_surface_;
// Used on the Thread, but checked on main thread during
// initialization/shutdown.
scoped_ptr<LayerTreeHostImpl> layer_tree_host_impl_;
RendererCapabilities renderer_capabilities_for_main_thread_;
bool next_frame_is_newly_committed_frame_;
bool inside_draw_;
DISALLOW_COPY_AND_ASSIGN(SingleThreadProxy);
};
// For use in the single-threaded case. In debug builds, it pretends that the
// code is running on the impl thread to satisfy assertion checks.
class DebugScopedSetImplThread {
public:
explicit DebugScopedSetImplThread(Proxy* proxy) : proxy_(proxy) {
#ifndef NDEBUG
previous_value_ = proxy_->impl_thread_is_overridden_;
proxy_->SetCurrentThreadIsImplThread(true);
#endif
}
~DebugScopedSetImplThread() {
#ifndef NDEBUG
proxy_->SetCurrentThreadIsImplThread(previous_value_);
#endif
}
private:
bool previous_value_;
Proxy* proxy_;
DISALLOW_COPY_AND_ASSIGN(DebugScopedSetImplThread);
};
// For use in the single-threaded case. In debug builds, it pretends that the
// code is running on the main thread to satisfy assertion checks.
class DebugScopedSetMainThread {
public:
explicit DebugScopedSetMainThread(Proxy* proxy) : proxy_(proxy) {
#ifndef NDEBUG
previous_value_ = proxy_->impl_thread_is_overridden_;
proxy_->SetCurrentThreadIsImplThread(false);
#endif
}
~DebugScopedSetMainThread() {
#ifndef NDEBUG
proxy_->SetCurrentThreadIsImplThread(previous_value_);
#endif
}
private:
bool previous_value_;
Proxy* proxy_;
DISALLOW_COPY_AND_ASSIGN(DebugScopedSetMainThread);
};
// For use in the single-threaded case. In debug builds, it pretends that the
// code is running on the impl thread and that the main thread is blocked to
// satisfy assertion checks
class DebugScopedSetImplThreadAndMainThreadBlocked {
public:
explicit DebugScopedSetImplThreadAndMainThreadBlocked(Proxy* proxy)
: impl_thread_(proxy), main_thread_blocked_(proxy) {}
private:
DebugScopedSetImplThread impl_thread_;
DebugScopedSetMainThreadBlocked main_thread_blocked_;
DISALLOW_COPY_AND_ASSIGN(DebugScopedSetImplThreadAndMainThreadBlocked);
};
} // namespace cc
#endif // CC_TREES_SINGLE_THREAD_PROXY_H_
|
