cc/debug/rendering_stats_instrumentation.h

   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 CC_EXPORT RenderingStatsInstrumentation {
  17  public:
  18   static scoped_ptr<RenderingStatsInstrumentation> Create();
  19   virtual ~RenderingStatsInstrumentation();
  20
  21   // Return current main thread rendering stats.
  22   MainThreadRenderingStats GetMainThreadRenderingStats() {
  23     return main_stats_;
  24   }
  25   // Return current impl thread rendering stats.
  26   ImplThreadRenderingStats GetImplThreadRenderingStats() {
  27     return impl_stats_;
  28   }
  29   // Return the accumulated, combined rendering stats.
  30   RenderingStats GetRenderingStats();
  31
  32   // Add current main thread rendering stats to accumulator and
  33   // clear current stats.
  34   void AccumulateAndClearMainThreadStats();
  35   // Add current impl thread rendering stats to accumulator and
  36   // clear current stats.
  37   void AccumulateAndClearImplThreadStats();
  38
  39   // Issue trace event for current main thread rendering stats.
  40   void IssueTraceEventForMainThreadStats() {
  41     main_stats_.IssueTraceEvent();
  42   }
  43   // Issue trace event for current impl thread rendering stats.
  44   void IssueTraceEventForImplThreadStats() {
  45     impl_stats_.IssueTraceEvent();
  46   }
  47
  48   // Read and write access to the record_rendering_stats_ flag is not locked to
  49   // improve performance. The flag is commonly turned off and hardly changes
  50   // it's value during runtime.
  51   bool record_rendering_stats() const { return record_rendering_stats_; }
  52   void set_record_rendering_stats(bool record_rendering_stats) {
  53     if (record_rendering_stats_ != record_rendering_stats)
  54       record_rendering_stats_ = record_rendering_stats;
  55   }
  56
  57   base::TimeTicks StartRecording() const;
  58   base::TimeDelta EndRecording(base::TimeTicks start_time) const;
  59
  60   void IncrementAnimationFrameCount();
  61   void IncrementScreenFrameCount(int64 count, bool main_thread);
  62   void IncrementDroppedFrameCount(int64 count);
  63
  64   void AddCommit(base::TimeDelta duration);
  65   void AddPaint(base::TimeDelta duration, int64 pixels);
  66   void AddRecord(base::TimeDelta duration, int64 pixels);
  67   void AddRaster(base::TimeDelta total_duraction,
  68                  base::TimeDelta best_duration,
  69                  int64 pixels,
  70                  bool is_in_pending_tree_now_bin);
  71
  72   void IncrementImplThreadScrolls();
  73   void IncrementMainThreadScrolls();
  74
  75   void AddLayersDrawn(int64 amount);
  76   void AddMissingTiles(int64 amount);
  77
  78   void AddDeferredImageDecode(base::TimeDelta duration);
  79   void AddImageGathering(base::TimeDelta duration);
  80
  81   void IncrementDeferredImageCacheHitCount();
  82
  83   void AddAnalysisResult(base::TimeDelta duration, bool is_solid_color);
  84
  85  protected:
  86   RenderingStatsInstrumentation();
  87
  88  private:
  89   MainThreadRenderingStats main_stats_;
  90   MainThreadRenderingStats main_stats_accu_;
  91   ImplThreadRenderingStats impl_stats_;
  92   ImplThreadRenderingStats impl_stats_accu_;
  93
  94   bool record_rendering_stats_;
  95
  96   base::Lock lock_;
  97
  98   DISALLOW_COPY_AND_ASSIGN(RenderingStatsInstrumentation);
  99 };
 100
 101 }  // namespace cc
 102
 103 #endif  // CC_DEBUG_RENDERING_STATS_INSTRUMENTATION_H_