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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 CC_SCHEDULER_SCHEDULER_STATE_MACHINE_H_ | 5 #ifndef CC_SCHEDULER_SCHEDULER_STATE_MACHINE_H_ |
6 #define CC_SCHEDULER_SCHEDULER_STATE_MACHINE_H_ | 6 #define CC_SCHEDULER_SCHEDULER_STATE_MACHINE_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
11 #include "base/memory/scoped_ptr.h" | 11 #include "base/memory/scoped_ptr.h" |
12 #include "base/time/time.h" | 12 #include "base/time/time.h" |
13 #include "cc/base/cc_export.h" | 13 #include "cc/base/cc_export.h" |
14 #include "cc/output/begin_frame_args.h" | 14 #include "cc/output/begin_frame_args.h" |
15 #include "cc/scheduler/draw_result.h" | 15 #include "cc/scheduler/draw_result.h" |
16 #include "cc/scheduler/scheduler_settings.h" | 16 #include "cc/scheduler/scheduler_settings.h" |
17 | 17 |
18 namespace base { | 18 namespace base { |
| 19 namespace debug { |
| 20 class ConvertableToTraceForamt; |
| 21 class TracedValue; |
| 22 } |
19 class Value; | 23 class Value; |
20 } | 24 } |
21 | 25 |
22 namespace cc { | 26 namespace cc { |
23 | 27 |
24 // The SchedulerStateMachine decides how to coordinate main thread activites | 28 // The SchedulerStateMachine decides how to coordinate main thread activites |
25 // like painting/running javascript with rendering and input activities on the | 29 // like painting/running javascript with rendering and input activities on the |
26 // impl thread. | 30 // impl thread. |
27 // | 31 // |
28 // The state machine tracks internal state but is also influenced by external | 32 // The state machine tracks internal state but is also influenced by external |
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95 ACTION_UPDATE_VISIBLE_TILES, | 99 ACTION_UPDATE_VISIBLE_TILES, |
96 ACTION_ACTIVATE_SYNC_TREE, | 100 ACTION_ACTIVATE_SYNC_TREE, |
97 ACTION_DRAW_AND_SWAP_IF_POSSIBLE, | 101 ACTION_DRAW_AND_SWAP_IF_POSSIBLE, |
98 ACTION_DRAW_AND_SWAP_FORCED, | 102 ACTION_DRAW_AND_SWAP_FORCED, |
99 ACTION_DRAW_AND_SWAP_ABORT, | 103 ACTION_DRAW_AND_SWAP_ABORT, |
100 ACTION_BEGIN_OUTPUT_SURFACE_CREATION, | 104 ACTION_BEGIN_OUTPUT_SURFACE_CREATION, |
101 ACTION_MANAGE_TILES, | 105 ACTION_MANAGE_TILES, |
102 }; | 106 }; |
103 static const char* ActionToString(Action action); | 107 static const char* ActionToString(Action action); |
104 | 108 |
105 scoped_ptr<base::Value> AsValue() const; | 109 scoped_refptr<base::debug::ConvertableToTraceFormat> AsValue() const; |
| 110 void AsValueInto(base::debug::TracedValue* dict) const; |
106 | 111 |
107 Action NextAction() const; | 112 Action NextAction() const; |
108 void UpdateState(Action action); | 113 void UpdateState(Action action); |
109 | 114 |
110 // Indicates whether the impl thread needs a BeginImplFrame callback in order | 115 // Indicates whether the impl thread needs a BeginImplFrame callback in order |
111 // to make progress. | 116 // to make progress. |
112 bool BeginFrameNeeded() const; | 117 bool BeginFrameNeeded() const; |
113 | 118 |
114 // Indicates that we need to independently poll for new state and actions | 119 // Indicates that we need to independently poll for new state and actions |
115 // because we can't expect a BeginImplFrame. This is mostly used to avoid | 120 // because we can't expect a BeginImplFrame. This is mostly used to avoid |
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301 bool skip_begin_main_frame_to_reduce_latency_; | 306 bool skip_begin_main_frame_to_reduce_latency_; |
302 bool continuous_painting_; | 307 bool continuous_painting_; |
303 | 308 |
304 private: | 309 private: |
305 DISALLOW_COPY_AND_ASSIGN(SchedulerStateMachine); | 310 DISALLOW_COPY_AND_ASSIGN(SchedulerStateMachine); |
306 }; | 311 }; |
307 | 312 |
308 } // namespace cc | 313 } // namespace cc |
309 | 314 |
310 #endif // CC_SCHEDULER_SCHEDULER_STATE_MACHINE_H_ | 315 #endif // CC_SCHEDULER_SCHEDULER_STATE_MACHINE_H_ |
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