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 "base/memory/scoped_ptr.h"
   9 #include "cc/base/rolling_time_delta_history.h"
  10
  11 namespace base {
  12 namespace trace_event {
  13 class TracedValue;
  14 }  // namespace trace_event
  15 }  // namespace base
  16
  17 namespace cc {
  18
  19 class RenderingStatsInstrumentation;
  20
  21 class CC_EXPORT CompositorTimingHistory {
  22  public:
  23   enum UMACategory {
  24     RENDERER_UMA,
  25     BROWSER_UMA,
  26     NULL_UMA,
  27   };
  28   class UMAReporter;
  29
  30   CompositorTimingHistory(
  31       UMACategory uma_category,
  32       RenderingStatsInstrumentation* rendering_stats_instrumentation);
  33   virtual ~CompositorTimingHistory();
  34
  35   void AsValueInto(base::trace_event::TracedValue* state) const;
  36
  37   virtual base::TimeDelta BeginMainFrameToCommitDurationEstimate() const;
  38   virtual base::TimeDelta CommitToReadyToActivateDurationEstimate() const;
  39   virtual base::TimeDelta PrepareTilesDurationEstimate() const;
  40   virtual base::TimeDelta ActivateDurationEstimate() const;
  41   virtual base::TimeDelta DrawDurationEstimate() const;
  42
  43   void SetRecordingEnabled(bool enabled);
  44
  45   void WillBeginMainFrame();
  46   void BeginMainFrameAborted();
  47   void DidCommit();
  48   void WillPrepareTiles();
  49   void DidPrepareTiles();
  50   void ReadyToActivate();
  51   void WillActivate();
  52   void DidActivate();
  53   void WillDraw();
  54   void DidDraw();
  55
  56  protected:
  57   static scoped_ptr<UMAReporter> CreateUMAReporter(UMACategory category);
  58   virtual base::TimeTicks Now() const;
  59
  60   bool AffectsEstimate() const;
  61
  62   bool enabled_;
  63   int draws_left_before_estimates_affected_;
  64
  65   RollingTimeDeltaHistory begin_main_frame_to_commit_duration_history_;
  66   RollingTimeDeltaHistory commit_to_ready_to_activate_duration_history_;
  67   RollingTimeDeltaHistory prepare_tiles_duration_history_;
  68   RollingTimeDeltaHistory activate_duration_history_;
  69   RollingTimeDeltaHistory draw_duration_history_;
  70
  71   base::TimeTicks begin_main_frame_sent_time_;
  72   base::TimeTicks commit_time_;
  73   base::TimeTicks start_prepare_tiles_time_;
  74   base::TimeTicks start_activate_time_;
  75   base::TimeTicks start_draw_time_;
  76
  77   scoped_ptr<UMAReporter> uma_reporter_;
  78   RenderingStatsInstrumentation* rendering_stats_instrumentation_;
  79
  80  private:
  81   DISALLOW_COPY_AND_ASSIGN(CompositorTimingHistory);
  82 };
  83
  84 }  // namespace cc
  85
  86 #endif  // CC_SCHEDULER_COMPOSITOR_TIMING_HISTORY_H_