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1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CC_DEBUG_RENDERING_STATS_INSTRUMENTATION_H_ | |
6 #define CC_DEBUG_RENDERING_STATS_INSTRUMENTATION_H_ | |
7 | |
8 #include "base/memory/scoped_ptr.h" | |
9 #include "base/synchronization/lock.h" | |
10 #include "cc/debug/rendering_stats.h" | |
11 | |
12 namespace cc { | |
13 | |
14 // RenderingStatsInstrumentation is shared among threads and manages conditional | |
15 // recording of rendering stats into a private RenderingStats instance. | |
16 class RenderingStatsInstrumentation { | |
17 public: | |
18 static scoped_ptr<RenderingStatsInstrumentation> Create(); | |
19 virtual ~RenderingStatsInstrumentation(); | |
20 | |
21 // Return copy of current impl thread rendering stats. | |
22 RenderingStats impl_thread_rendering_stats(); | |
23 | |
24 // Return the accumulated, combined rendering stats. | |
25 RenderingStats GetRenderingStats(); | |
26 | |
27 // Add current impl thread rendering stats to accumulator and | |
28 // clear current stats. | |
29 void AccumulateAndClearImplThreadStats(); | |
30 | |
31 // Read and write access to the record_rendering_stats_ flag is not locked to | |
32 // improve performance. The flag is commonly turned off and hardly changes | |
33 // it's value during runtime. | |
34 bool record_rendering_stats() const { return record_rendering_stats_; } | |
35 void set_record_rendering_stats(bool record_rendering_stats) { | |
36 if (record_rendering_stats_ != record_rendering_stats) | |
37 record_rendering_stats_ = record_rendering_stats; | |
38 } | |
39 | |
40 base::TimeDelta StartRecording() const; | |
41 base::TimeDelta EndRecording(base::TimeDelta start_time) const; | |
42 | |
43 void IncrementFrameCount(int64 count); | |
44 void AddVisibleContentArea(int64 area); | |
45 void AddApproximatedVisibleContentArea(int64 area); | |
46 void AddDrawDuration(base::TimeDelta draw_duration, | |
47 base::TimeDelta draw_duration_estimate); | |
48 void AddBeginMainFrameToCommitDuration( | |
49 base::TimeDelta begin_main_frame_to_commit_duration, | |
50 base::TimeDelta begin_main_frame_to_commit_duration_estimate); | |
51 void AddCommitToActivateDuration( | |
52 base::TimeDelta commit_to_activate_duration, | |
53 base::TimeDelta commit_to_activate_duration_estimate); | |
54 | |
55 protected: | |
56 RenderingStatsInstrumentation(); | |
57 | |
58 private: | |
59 RenderingStats impl_thread_rendering_stats_; | |
60 RenderingStats impl_thread_rendering_stats_accu_; | |
61 | |
62 bool record_rendering_stats_; | |
63 | |
64 base::Lock lock_; | |
65 | |
66 DISALLOW_COPY_AND_ASSIGN(RenderingStatsInstrumentation); | |
67 }; | |
68 | |
69 } // namespace cc | |
70 | |
71 #endif // CC_DEBUG_RENDERING_STATS_INSTRUMENTATION_H_ | |
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