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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 CCFrameRateController_h | 5 #ifndef CCFrameRateController_h |
6 #define CCFrameRateController_h | 6 #define CCFrameRateController_h |
7 | 7 |
8 #include "base/memory/ref_counted.h" | 8 #include "base/memory/ref_counted.h" |
9 #include "base/memory/scoped_ptr.h" | 9 #include "base/memory/scoped_ptr.h" |
| 10 #include "base/memory/weak_ptr.h" |
10 #include "base/time.h" | 11 #include "base/time.h" |
11 #include "cc/timer.h" | |
12 | 12 |
13 namespace cc { | 13 namespace cc { |
14 | 14 |
15 class Thread; | 15 class Thread; |
16 class TimeSource; | 16 class TimeSource; |
17 | 17 |
18 class FrameRateControllerClient { | 18 class FrameRateControllerClient { |
19 public: | 19 public: |
20 // Throttled is true when we have a maximum number of frames pending. | 20 // Throttled is true when we have a maximum number of frames pending. |
21 virtual void vsyncTick(bool throttled) = 0; | 21 virtual void vsyncTick(bool throttled) = 0; |
22 | 22 |
23 protected: | 23 protected: |
24 virtual ~FrameRateControllerClient() {} | 24 virtual ~FrameRateControllerClient() {} |
25 }; | 25 }; |
26 | 26 |
27 class FrameRateControllerTimeSourceAdapter; | 27 class FrameRateControllerTimeSourceAdapter; |
28 | 28 |
29 class FrameRateController : public TimerClient { | 29 class FrameRateController { |
30 public: | 30 public: |
31 explicit FrameRateController(scoped_refptr<TimeSource>); | 31 explicit FrameRateController(scoped_refptr<TimeSource>); |
32 // Alternate form of FrameRateController with unthrottled frame-rate. | 32 // Alternate form of FrameRateController with unthrottled frame-rate. |
33 explicit FrameRateController(Thread*); | 33 explicit FrameRateController(Thread*); |
34 virtual ~FrameRateController(); | 34 virtual ~FrameRateController(); |
35 | 35 |
36 void setClient(FrameRateControllerClient* client) { m_client = client; } | 36 void setClient(FrameRateControllerClient* client) { m_client = client; } |
37 | 37 |
38 void setActive(bool); | 38 void setActive(bool); |
39 | 39 |
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52 base::TimeTicks nextTickTime(); | 52 base::TimeTicks nextTickTime(); |
53 | 53 |
54 void setTimebaseAndInterval(base::TimeTicks timebase, base::TimeDelta interv
al); | 54 void setTimebaseAndInterval(base::TimeTicks timebase, base::TimeDelta interv
al); |
55 void setSwapBuffersCompleteSupported(bool); | 55 void setSwapBuffersCompleteSupported(bool); |
56 | 56 |
57 protected: | 57 protected: |
58 friend class FrameRateControllerTimeSourceAdapter; | 58 friend class FrameRateControllerTimeSourceAdapter; |
59 void onTimerTick(); | 59 void onTimerTick(); |
60 | 60 |
61 void postManualTick(); | 61 void postManualTick(); |
62 | 62 void manualTick(); |
63 // TimerClient implementation (used for unthrottled frame-rate). | |
64 virtual void onTimerFired() OVERRIDE; | |
65 | 63 |
66 FrameRateControllerClient* m_client; | 64 FrameRateControllerClient* m_client; |
67 int m_numFramesPending; | 65 int m_numFramesPending; |
68 int m_maxFramesPending; | 66 int m_maxFramesPending; |
69 scoped_refptr<TimeSource> m_timeSource; | 67 scoped_refptr<TimeSource> m_timeSource; |
70 scoped_ptr<FrameRateControllerTimeSourceAdapter> m_timeSourceClientAdapter; | 68 scoped_ptr<FrameRateControllerTimeSourceAdapter> m_timeSourceClientAdapter; |
71 bool m_active; | 69 bool m_active; |
72 bool m_swapBuffersCompleteSupported; | 70 bool m_swapBuffersCompleteSupported; |
73 | 71 |
74 // Members for unthrottled frame-rate. | 72 // Members for unthrottled frame-rate. |
75 bool m_isTimeSourceThrottling; | 73 bool m_isTimeSourceThrottling; |
76 scoped_ptr<Timer> m_manualTicker; | 74 base::WeakPtrFactory<FrameRateController> m_weakFactory; |
| 75 Thread* m_thread; |
| 76 |
| 77 DISALLOW_COPY_AND_ASSIGN(FrameRateController); |
77 }; | 78 }; |
78 | 79 |
79 } // namespace cc | 80 } // namespace cc |
80 | 81 |
81 #endif // CCFrameRateController_h | 82 #endif // CCFrameRateController_h |
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