cc/scheduler/compositor_timing_history.h

   1 // Copyright 2014 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_SCHEDULER_COMPOSITOR_TIMING_HISTORY_H_
   6 #define CC_SCHEDULER_COMPOSITOR_TIMING_HISTORY_H_
   7
   8 #include "cc/base/rolling_time_delta_history.h"
   9
  10 namespace base {
  11 namespace trace_event {
  12 class TracedValue;
  13 }  // namespace trace_event
  14 }  // namespace base
  15
  16 namespace cc {
  17
  18 class RenderingStatsInstrumentation;
  19
  20 class CC_EXPORT CompositorTimingHistory {
  21  public:
  22   explicit CompositorTimingHistory(
  23       RenderingStatsInstrumentation* rendering_stats_instrumentation);
  24   virtual ~CompositorTimingHistory();
  25
  26   void AsValueInto(base::trace_event::TracedValue* state) const;
  27
  28   virtual base::TimeDelta DrawDurationEstimate() const;
  29   virtual base::TimeDelta BeginMainFrameToCommitDurationEstimate() const;
  30   virtual base::TimeDelta CommitToActivateDurationEstimate() const;
  31
  32   void WillBeginMainFrame();
  33   void DidCommit();
  34   void DidActivateSyncTree();
  35   void DidStartDrawing();
  36   void DidFinishDrawing();
  37
  38  protected:
  39   void AddDrawDurationUMA(base::TimeDelta draw_duration,
  40                           base::TimeDelta draw_duration_estimate);
  41
  42   RollingTimeDeltaHistory draw_duration_history_;
  43   RollingTimeDeltaHistory begin_main_frame_to_commit_duration_history_;
  44   RollingTimeDeltaHistory commit_to_activate_duration_history_;
  45
  46   base::TimeTicks begin_main_frame_sent_time_;
  47   base::TimeTicks commit_complete_time_;
  48   base::TimeTicks start_draw_time_;
  49
  50   RenderingStatsInstrumentation* rendering_stats_instrumentation_;
  51
  52  private:
  53   DISALLOW_COPY_AND_ASSIGN(CompositorTimingHistory);
  54 };
  55
  56 }  // namespace cc
  57
  58 #endif  // CC_SCHEDULER_COMPOSITOR_TIMING_HISTORY_H_