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Side by Side Diff: cc/scheduler_state_machine.h

Issue 11365025: Make cc a component (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: rebase Created 8 years, 1 month ago
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1 // Copyright 2011 The Chromium Authors. All rights reserved. 1 // Copyright 2011 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 CCSchedulerStateMachine_h 5 #ifndef CCSchedulerStateMachine_h
6 #define CCSchedulerStateMachine_h 6 #define CCSchedulerStateMachine_h
7 7
8 #include <string> 8 #include <string>
9 9
10 #include "base/basictypes.h" 10 #include "base/basictypes.h"
11 #include "cc/cc_export.h"
11 12
12 namespace cc { 13 namespace cc {
13 14
14 // The SchedulerStateMachine decides how to coordinate main thread activites 15 // The SchedulerStateMachine decides how to coordinate main thread activites
15 // like painting/running javascript with rendering and input activities on the 16 // like painting/running javascript with rendering and input activities on the
16 // impl thread. 17 // impl thread.
17 // 18 //
18 // The state machine tracks internal state but is also influenced by external st ate. 19 // The state machine tracks internal state but is also influenced by external st ate.
19 // Internal state includes things like whether a frame has been requested, while 20 // Internal state includes things like whether a frame has been requested, while
20 // external state includes things like the current time being near to the vblank time. 21 // external state includes things like the current time being near to the vblank time.
21 // 22 //
22 // The scheduler seperates "what to do next" from the updating of its internal s tate to 23 // The scheduler seperates "what to do next" from the updating of its internal s tate to
23 // make testing cleaner. 24 // make testing cleaner.
24 class SchedulerStateMachine { 25 class CC_EXPORT SchedulerStateMachine {
25 public: 26 public:
26 SchedulerStateMachine(); 27 SchedulerStateMachine();
27 28
28 enum CommitState { 29 enum CommitState {
29 COMMIT_STATE_IDLE, 30 COMMIT_STATE_IDLE,
30 COMMIT_STATE_FRAME_IN_PROGRESS, 31 COMMIT_STATE_FRAME_IN_PROGRESS,
31 COMMIT_STATE_READY_TO_COMMIT, 32 COMMIT_STATE_READY_TO_COMMIT,
32 COMMIT_STATE_WAITING_FOR_FIRST_DRAW, 33 COMMIT_STATE_WAITING_FOR_FIRST_DRAW,
33 }; 34 };
34 35
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152 bool m_drawIfPossibleFailed; 153 bool m_drawIfPossibleFailed;
153 TextureState m_textureState; 154 TextureState m_textureState;
154 ContextState m_contextState; 155 ContextState m_contextState;
155 156
156 DISALLOW_COPY_AND_ASSIGN(SchedulerStateMachine); 157 DISALLOW_COPY_AND_ASSIGN(SchedulerStateMachine);
157 }; 158 };
158 159
159 } 160 }
160 161
161 #endif // CCSchedulerStateMachine_h 162 #endif // CCSchedulerStateMachine_h
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