chromium/device/vr/util/fps_meter.cc

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "device/vr/util/fps_meter.h"

namespace device {

namespace {

static constexpr size_t kDefaultNumFrameTimes = …;

}  // namespace

FPSMeter::FPSMeter() : … { … }

FPSMeter::FPSMeter(size_t window_size) : … { … }

FPSMeter::~FPSMeter() = default;

size_t FPSMeter::GetNumFrameTimes() { … }

void FPSMeter::AddFrame(const base::TimeTicks& time_stamp) { … }

bool FPSMeter::CanComputeFPS() const { … }

// Simply takes the average time delta.
double FPSMeter::GetFPS() const { … }

}  // namespace device