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
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
/*
* Copyright (C) 2011 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef CCThreadProxy_h
#define CCThreadProxy_h
#include "cc/CCAnimationEvents.h"
#include "cc/CCCompletionEvent.h"
#include "cc/CCLayerTreeHostImpl.h"
#include "cc/CCProxy.h"
#include "cc/CCScheduler.h"
#include <wtf/OwnPtr.h>
namespace WebCore {
class CCInputHandler;
class CCLayerTreeHost;
class CCScheduler;
class CCScopedThreadProxy;
class CCTextureUpdater;
class CCThread;
class CCThreadProxyContextRecreationTimer;
class CCThreadProxy : public CCProxy, CCLayerTreeHostImplClient, CCSchedulerClient {
public:
static PassOwnPtr<CCProxy> create(CCLayerTreeHost*);
virtual ~CCThreadProxy();
// CCProxy implementation
virtual bool compositeAndReadback(void *pixels, const IntRect&) OVERRIDE;
virtual void startPageScaleAnimation(const IntSize& targetPosition, bool useAnchor, float scale, double duration) OVERRIDE;
virtual void finishAllRendering() OVERRIDE;
virtual bool isStarted() const OVERRIDE;
virtual bool initializeContext() OVERRIDE;
virtual void setSurfaceReady() OVERRIDE;
virtual void setVisible(bool) OVERRIDE;
virtual bool initializeLayerRenderer() OVERRIDE;
virtual bool recreateContext() OVERRIDE;
virtual int compositorIdentifier() const OVERRIDE;
virtual void implSideRenderingStats(CCRenderingStats&) OVERRIDE;
virtual const LayerRendererCapabilities& layerRendererCapabilities() const OVERRIDE;
virtual void loseContext() OVERRIDE;
virtual void setNeedsAnimate() OVERRIDE;
virtual void setNeedsCommit() OVERRIDE;
virtual void setNeedsRedraw() OVERRIDE;
virtual bool commitRequested() const OVERRIDE;
virtual void didAddAnimation() OVERRIDE { }
virtual void start() OVERRIDE;
virtual void stop() OVERRIDE;
virtual size_t maxPartialTextureUpdates() const OVERRIDE;
virtual void acquireLayerTextures() OVERRIDE;
virtual void setFontAtlas(PassOwnPtr<CCFontAtlas>) OVERRIDE;
virtual void forceSerializeOnSwapBuffers() OVERRIDE;
// CCLayerTreeHostImplClient implementation
virtual void didLoseContextOnImplThread() OVERRIDE;
virtual void onSwapBuffersCompleteOnImplThread() OVERRIDE;
virtual void setNeedsRedrawOnImplThread() OVERRIDE;
virtual void setNeedsCommitOnImplThread() OVERRIDE;
virtual void postAnimationEventsToMainThreadOnImplThread(PassOwnPtr<CCAnimationEventsVector>, double wallClockTime) OVERRIDE;
// CCSchedulerClient implementation
virtual bool canDraw() OVERRIDE;
virtual bool hasMoreResourceUpdates() const OVERRIDE;
virtual void scheduledActionBeginFrame() OVERRIDE;
virtual CCScheduledActionDrawAndSwapResult scheduledActionDrawAndSwapIfPossible() OVERRIDE;
virtual CCScheduledActionDrawAndSwapResult scheduledActionDrawAndSwapForced() OVERRIDE;
virtual void scheduledActionUpdateMoreResources() OVERRIDE;
virtual void scheduledActionCommit() OVERRIDE;
virtual void scheduledActionBeginContextRecreation() OVERRIDE;
virtual void scheduledActionAcquireLayerTexturesForMainThread() OVERRIDE;
private:
explicit CCThreadProxy(CCLayerTreeHost*);
friend class CCThreadProxyContextRecreationTimer;
// Set on impl thread, read on main thread.
struct BeginFrameAndCommitState {
BeginFrameAndCommitState()
: monotonicFrameBeginTime(0)
, updater(0)
{
}
double monotonicFrameBeginTime;
OwnPtr<CCScrollAndScaleSet> scrollInfo;
CCTextureUpdater* updater;
bool contentsTexturesWereDeleted;
size_t memoryAllocationLimitBytes;
};
OwnPtr<BeginFrameAndCommitState> m_pendingBeginFrameRequest;
// Called on main thread
void beginFrame();
void didCommitAndDrawFrame();
void didCompleteSwapBuffers();
void setAnimationEvents(PassOwnPtr<CCAnimationEventsVector>, double wallClockTime);
void beginContextRecreation();
void tryToRecreateContext();
// Called on impl thread
struct ReadbackRequest {
CCCompletionEvent completion;
bool success;
void* pixels;
IntRect rect;
};
void forceBeginFrameOnImplThread(CCCompletionEvent*);
void beginFrameCompleteOnImplThread(CCCompletionEvent*);
void beginFrameAbortedOnImplThread();
void requestReadbackOnImplThread(ReadbackRequest*);
void requestStartPageScaleAnimationOnImplThread(IntSize targetPosition, bool useAnchor, float scale, double durationSec);
void finishAllRenderingOnImplThread(CCCompletionEvent*);
void initializeImplOnImplThread(CCCompletionEvent*);
void setSurfaceReadyOnImplThread();
void setVisibleOnImplThread(CCCompletionEvent*, bool);
void initializeContextOnImplThread(CCGraphicsContext*);
void initializeLayerRendererOnImplThread(CCCompletionEvent*, bool* initializeSucceeded, LayerRendererCapabilities*);
void layerTreeHostClosedOnImplThread(CCCompletionEvent*);
void setFullRootLayerDamageOnImplThread();
void acquireLayerTexturesForMainThreadOnImplThread(CCCompletionEvent*);
void recreateContextOnImplThread(CCCompletionEvent*, CCGraphicsContext*, bool* recreateSucceeded, LayerRendererCapabilities*);
void implSideRenderingStatsOnImplThread(CCCompletionEvent*, CCRenderingStats*);
CCScheduledActionDrawAndSwapResult scheduledActionDrawAndSwapInternal(bool forcedDraw);
void setFontAtlasOnImplThread(PassOwnPtr<CCFontAtlas>);
void forceSerializeOnSwapBuffersOnImplThread(CCCompletionEvent*);
void setNeedsForcedCommitOnImplThread();
// Accessed on main thread only.
bool m_animateRequested;
bool m_commitRequested;
bool m_forcedCommitRequested;
bool m_contextLost;
OwnPtr<CCThreadProxyContextRecreationTimer> m_contextRecreationTimer;
CCLayerTreeHost* m_layerTreeHost;
int m_compositorIdentifier;
bool m_layerRendererInitialized;
LayerRendererCapabilities m_layerRendererCapabilitiesMainThreadCopy;
bool m_started;
bool m_texturesAcquired;
bool m_inCompositeAndReadback;
OwnPtr<CCLayerTreeHostImpl> m_layerTreeHostImpl;
OwnPtr<CCInputHandler> m_inputHandlerOnImplThread;
OwnPtr<CCScheduler> m_schedulerOnImplThread;
RefPtr<CCScopedThreadProxy> m_mainThreadProxy;
// Holds on to the context we might use for compositing in between initializeContext()
// and initializeLayerRenderer() calls.
OwnPtr<CCGraphicsContext> m_contextBeforeInitializationOnImplThread;
// Set when the main thread is waiting on a scheduledActionBeginFrame to be issued.
CCCompletionEvent* m_beginFrameCompletionEventOnImplThread;
// Set when the main thread is waiting on a readback.
ReadbackRequest* m_readbackRequestOnImplThread;
// Set when the main thread is waiting on a commit to complete.
CCCompletionEvent* m_commitCompletionEventOnImplThread;
// Set when the main thread is waiting on layers to be drawn.
CCCompletionEvent* m_textureAcquisitionCompletionEventOnImplThread;
OwnPtr<CCTextureUpdater> m_currentTextureUpdaterOnImplThread;
// Set when the next draw should post didCommitAndDrawFrame to the main thread.
bool m_nextFrameIsNewlyCommittedFrameOnImplThread;
};
}
#endif
|
