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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 CCTimeSource_h | 5 #ifndef CCTimeSource_h |
6 #define CCTimeSource_h | 6 #define CCTimeSource_h |
7 | 7 |
8 #include <wtf/RefCounted.h> | 8 #include <wtf/RefCounted.h> |
9 | 9 |
10 namespace WebCore { | 10 namespace cc { |
11 | 11 |
12 class CCThread; | 12 class CCThread; |
13 | 13 |
14 class CCTimeSourceClient { | 14 class CCTimeSourceClient { |
15 public: | 15 public: |
16 virtual void onTimerTick() = 0; | 16 virtual void onTimerTick() = 0; |
17 | 17 |
18 protected: | 18 protected: |
19 virtual ~CCTimeSourceClient() { } | 19 virtual ~CCTimeSourceClient() { } |
20 }; | 20 }; |
21 | 21 |
22 // An generic interface for getting a reliably-ticking timesource of | 22 // An generic interface for getting a reliably-ticking timesource of |
23 // a specified rate. | 23 // a specified rate. |
24 // | 24 // |
25 // Be sure to call setActive(false) before releasing your reference to the | 25 // Be sure to call setActive(false) before releasing your reference to the |
26 // timer, or it will keep on ticking! | 26 // timer, or it will keep on ticking! |
27 class CCTimeSource : public RefCounted<CCTimeSource> { | 27 class CCTimeSource : public RefCounted<CCTimeSource> { |
28 public: | 28 public: |
29 virtual ~CCTimeSource() { } | 29 virtual ~CCTimeSource() { } |
30 virtual void setClient(CCTimeSourceClient*) = 0; | 30 virtual void setClient(CCTimeSourceClient*) = 0; |
31 virtual void setActive(bool) = 0; | 31 virtual void setActive(bool) = 0; |
32 virtual bool active() const = 0; | 32 virtual bool active() const = 0; |
33 virtual void setTimebaseAndInterval(double timebase, double intervalSeconds)
= 0; | 33 virtual void setTimebaseAndInterval(double timebase, double intervalSeconds)
= 0; |
34 virtual double lastTickTime() = 0; | 34 virtual double lastTickTime() = 0; |
35 virtual double nextTickTimeIfActivated() = 0; | 35 virtual double nextTickTimeIfActivated() = 0; |
36 }; | 36 }; |
37 | 37 |
38 } | 38 } |
39 #endif // CCSmoothedTimer_h | 39 #endif // CCSmoothedTimer_h |
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