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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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