12a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Copyright 2013 The Chromium Authors. All rights reserved. 22a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 32a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// found in the LICENSE file. 42a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 52a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#ifndef CC_DEBUG_PAINT_TIME_COUNTER_H_ 62a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#define CC_DEBUG_PAINT_TIME_COUNTER_H_ 72a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 82a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/basictypes.h" 92a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/memory/scoped_ptr.h" 10eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch#include "base/time/time.h" 112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "cc/debug/ring_buffer.h" 122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)namespace cc { 142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Maintains a history of paint times for each frame 162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class PaintTimeCounter { 172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) public: 182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) static scoped_ptr<PaintTimeCounter> Create(); 192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) size_t HistorySize() const { return ring_buffer_.BufferSize(); } 212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // n = 0 returns the oldest and 232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // n = PaintTimeHistorySize() - 1 the most recent paint time. 242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::TimeDelta GetPaintTimeOfRecentFrame(const size_t& n) const; 252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 26c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) void SavePaintTime(const base::TimeDelta& total_paint_time); 272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void GetMinAndMaxPaintTime(base::TimeDelta* min, base::TimeDelta* max) const; 282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void ClearHistory(); 302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 31c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) typedef RingBuffer<base::TimeDelta, 200> RingBufferType; 322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RingBufferType::Iterator Begin() const { return ring_buffer_.Begin(); } 332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RingBufferType::Iterator End() const { return ring_buffer_.End(); } 342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) private: 362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PaintTimeCounter(); 372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RingBufferType ring_buffer_; 392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::TimeDelta last_total_paint_time_; 402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool can_save_paint_time_delta_; 412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(PaintTimeCounter); 432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} // namespace cc 462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#endif // CC_DEBUG_PAINT_TIME_COUNTER_H_ 48