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1 // Copyright 2011 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 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 // Temporary forwarding header |
6 #define CCFrameRateController_h | 6 #include "cc/frame_rate_controller.h" |
7 | |
8 #include "base/memory/scoped_ptr.h" | |
9 #include "base/time.h" | |
10 #include "CCTimer.h" | |
11 #include <wtf/PassRefPtr.h> | |
12 #include <wtf/RefPtr.h> | |
13 | |
14 namespace cc { | |
15 | |
16 class CCThread; | |
17 class CCTimeSource; | |
18 | |
19 class CCFrameRateControllerClient { | |
20 public: | |
21 // Throttled is true when we have a maximum number of frames pending. | |
22 virtual void vsyncTick(bool throttled) = 0; | |
23 | |
24 protected: | |
25 virtual ~CCFrameRateControllerClient() {} | |
26 }; | |
27 | |
28 class CCFrameRateControllerTimeSourceAdapter; | |
29 | |
30 class CCFrameRateController : public CCTimerClient { | |
31 public: | |
32 explicit CCFrameRateController(PassRefPtr<CCTimeSource>); | |
33 // Alternate form of CCFrameRateController with unthrottled frame-rate. | |
34 explicit CCFrameRateController(CCThread*); | |
35 virtual ~CCFrameRateController(); | |
36 | |
37 void setClient(CCFrameRateControllerClient* client) { m_client = client; } | |
38 | |
39 void setActive(bool); | |
40 | |
41 // Use the following methods to adjust target frame rate. | |
42 // | |
43 // Multiple frames can be in-progress, but for every didBeginFrame, a | |
44 // didFinishFrame should be posted. | |
45 // | |
46 // If the rendering pipeline crashes, call didAbortAllPendingFrames. | |
47 void didBeginFrame(); | |
48 void didFinishFrame(); | |
49 void didAbortAllPendingFrames(); | |
50 void setMaxFramesPending(int); // 0 for unlimited. | |
51 | |
52 // This returns null for unthrottled frame-rate. | |
53 base::TimeTicks nextTickTime(); | |
54 | |
55 void setTimebaseAndInterval(base::TimeTicks timebase, base::TimeDelta interv
al); | |
56 void setSwapBuffersCompleteSupported(bool); | |
57 | |
58 protected: | |
59 friend class CCFrameRateControllerTimeSourceAdapter; | |
60 void onTimerTick(); | |
61 | |
62 void postManualTick(); | |
63 | |
64 // CCTimerClient implementation (used for unthrottled frame-rate). | |
65 virtual void onTimerFired() OVERRIDE; | |
66 | |
67 CCFrameRateControllerClient* m_client; | |
68 int m_numFramesPending; | |
69 int m_maxFramesPending; | |
70 RefPtr<CCTimeSource> m_timeSource; | |
71 scoped_ptr<CCFrameRateControllerTimeSourceAdapter> m_timeSourceClientAdapter
; | |
72 bool m_active; | |
73 bool m_swapBuffersCompleteSupported; | |
74 | |
75 // Members for unthrottled frame-rate. | |
76 bool m_isTimeSourceThrottling; | |
77 scoped_ptr<CCTimer> m_manualTicker; | |
78 }; | |
79 | |
80 } // namespace cc | |
81 | |
82 #endif // CCFrameRateController_h | |
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