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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_DEBUG_RENDERING_STATS_INSTRUMENTATION_H_
#define CC_DEBUG_RENDERING_STATS_INSTRUMENTATION_H_
#include "base/memory/scoped_ptr.h"
#include "base/synchronization/lock.h"
#include "cc/debug/rendering_stats.h"
namespace cc {
// RenderingStatsInstrumentation is shared among threads and manages conditional
// recording of rendering stats into a private RenderingStats instance.
class CC_EXPORT RenderingStatsInstrumentation {
public:
static scoped_ptr<RenderingStatsInstrumentation> Create();
virtual ~RenderingStatsInstrumentation();
RenderingStats GetRenderingStats();
// Read and write access to the record_rendering_stats_ flag is not locked to
// improve performance. The flag is commonly turned off and hardly changes
// it's value during runtime.
bool record_rendering_stats() const { return record_rendering_stats_; }
void set_record_rendering_stats(bool record_rendering_stats) {
if (record_rendering_stats_ != record_rendering_stats)
record_rendering_stats_ = record_rendering_stats;
}
base::TimeTicks StartRecording() const;
base::TimeDelta EndRecording(base::TimeTicks start_time) const;
// TODO(egraether): Remove after switching Layer::update() to use this class.
// Used in LayerTreeHost::paintLayerContents().
void AddStats(const RenderingStats& other);
void IncrementAnimationFrameCount();
void SetScreenFrameCount(int64 count);
void SetDroppedFrameCount(int64 count);
void AddCommit(base::TimeDelta duration);
void AddPaint(base::TimeDelta duration, int64 pixels);
void AddRaster(base::TimeDelta duration,
int64 pixels,
bool is_in_pending_tree_now_bin);
void IncrementImplThreadScrolls();
void IncrementMainThreadScrolls();
void AddLayersDrawn(int64 amount);
void AddMissingTiles(int64 amount);
void AddDeferredImageDecode(base::TimeDelta duration);
void AddImageGathering(base::TimeDelta duration);
void IncrementDeferredImageCacheHitCount();
protected:
RenderingStatsInstrumentation();
private:
RenderingStats rendering_stats_;
bool record_rendering_stats_;
base::Lock lock_;
DISALLOW_COPY_AND_ASSIGN(RenderingStatsInstrumentation);
};
} // namespace cc
#endif // CC_DEBUG_RENDERING_STATS_INSTRUMENTATION_H_
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