| // 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. |
| |
| #include "cc/test/lap_timer.h" |
| |
| #include "base/logging.h" |
| |
| namespace cc { |
| |
| LapTimer::LapTimer(int warmup_laps, |
| base::TimeDelta time_limit, |
| int check_interval) |
| : warmup_laps_(warmup_laps), |
| time_limit_(time_limit), |
| check_interval_(check_interval) { |
| DCHECK_GT(check_interval, 0); |
| Reset(); |
| } |
| |
| void LapTimer::Reset() { |
| accumulator_ = base::TimeDelta(); |
| num_laps_ = 0; |
| accumulated_ = true; |
| remaining_warmups_ = warmup_laps_; |
| Start(); |
| } |
| |
| void LapTimer::Start() { start_time_ = base::TimeTicks::HighResNow(); } |
| |
| bool LapTimer::IsWarmedUp() { return remaining_warmups_ <= 0; } |
| |
| void LapTimer::NextLap() { |
| if (!IsWarmedUp()) { |
| --remaining_warmups_; |
| if (IsWarmedUp()) { |
| Start(); |
| } |
| return; |
| } |
| ++num_laps_; |
| accumulated_ = (num_laps_ % check_interval_) == 0; |
| if (accumulated_) { |
| base::TimeTicks now = base::TimeTicks::HighResNow(); |
| accumulator_ += now - start_time_; |
| start_time_ = now; |
| } |
| } |
| |
| bool LapTimer::HasTimeLimitExpired() { return accumulator_ >= time_limit_; } |
| |
| float LapTimer::MsPerLap() { |
| DCHECK(accumulated_); |
| return accumulator_.InMillisecondsF() / num_laps_; |
| } |
| |
| float LapTimer::LapsPerSecond() { |
| DCHECK(accumulated_); |
| return num_laps_ / accumulator_.InSecondsF(); |
| } |
| |
| int LapTimer::NumLaps() { return num_laps_; } |
| |
| } // namespace cc |