cc/rendering_stats.h

   1 // Copyright 2012 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_RENDERING_STATS_H_
   6 #define CC_RENDERING_STATS_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/time.h"
  10 #include "cc/cc_export.h"
  11
  12 namespace cc {
  13
  14 struct CC_EXPORT RenderingStats {
  15     // FIXME: Rename these to animationFrameCount and screenFrameCount, crbug.com/138641.
  16     int64 numAnimationFrames;
  17     int64 numFramesSentToScreen;
  18     int64 droppedFrameCount;
  19     double totalPaintTimeInSeconds;
  20     double totalRasterizeTimeInSeconds;
  21     double totalCommitTimeInSeconds;
  22     int64 totalCommitCount;
  23     int64 totalPixelsPainted;
  24     int64 totalPixelsRasterized;
  25     int64 numImplThreadScrolls;
  26     int64 numMainThreadScrolls;
  27     int64 numLayersDrawn;
  28     int64 numMissingTiles;
  29     int64 totalDeferredImageDecodeCount;
  30     int64 totalDeferredImageCacheHitCount;
  31     int64 totalImageGatheringCount;
  32     double totalDeferredImageDecodeTimeInSeconds;
  33     double totalImageGatheringTimeInSeconds;
  34     // Note: when adding new members, please remember to update enumerateFields
  35     // in rendering_stats.cc.
  36
  37     RenderingStats();
  38
  39     // In conjunction with enumerateFields, this allows the embedder to
  40     // enumerate the values in this structure without
  41     // having to embed references to its specific member variables. This
  42     // simplifies the addition of new fields to this type.
  43     class Enumerator {
  44     public:
  45         virtual void AddInt64(const char* name, int64 value) = 0;
  46         virtual void AddDouble(const char* name, double value) = 0;
  47         virtual void AddInt(const char* name, int value) = 0;
  48         virtual void AddTimeDeltaInSecondsF(const char* name,
  49                                             const base::TimeDelta& value) = 0;
  50
  51     protected:
  52         virtual ~Enumerator() { }
  53     };
  54
  55     // Outputs the fields in this structure to the provided enumerator.
  56     void EnumerateFields(Enumerator* enumerator) const;
  57 };
  58
  59 }  // namespace cc
  60
  61 #endif  // CC_RENDERING_STATS_H_