cc/debug/frame_timing_tracker.cc

   1 // Copyright 2015 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 #include "cc/debug/frame_timing_tracker.h"
   6
   7 #include <algorithm>
   8 #include <limits>
   9
  10 #include "base/metrics/histogram.h"
  11 #include "cc/trees/proxy.h"
  12
  13 namespace cc {
  14
  15 FrameTimingTracker::CompositeTimingEvent::CompositeTimingEvent(
  16     int _frame_id,
  17     base::TimeTicks _timestamp)
  18     : frame_id(_frame_id), timestamp(_timestamp) {
  19 }
  20
  21 FrameTimingTracker::CompositeTimingEvent::~CompositeTimingEvent() {
  22 }
  23
  24 FrameTimingTracker::MainFrameTimingEvent::MainFrameTimingEvent(
  25     int frame_id,
  26     base::TimeTicks timestamp,
  27     base::TimeTicks end_time)
  28     : frame_id(frame_id), timestamp(timestamp), end_time(end_time) {
  29 }
  30
  31 FrameTimingTracker::MainFrameTimingEvent::~MainFrameTimingEvent() {
  32 }
  33
  34 // static
  35 scoped_ptr<FrameTimingTracker> FrameTimingTracker::Create() {
  36   return make_scoped_ptr(new FrameTimingTracker);
  37 }
  38
  39 FrameTimingTracker::FrameTimingTracker() {
  40 }
  41
  42 FrameTimingTracker::~FrameTimingTracker() {
  43 }
  44
  45 void FrameTimingTracker::SaveTimeStamps(
  46     base::TimeTicks timestamp,
  47     const std::vector<FrameAndRectIds>& frame_ids) {
  48   if (!composite_events_)
  49     composite_events_.reset(new CompositeTimingSet);
  50   for (const auto& pair : frame_ids) {
  51     (*composite_events_)[pair.second].push_back(
  52         CompositeTimingEvent(pair.first, timestamp));
  53   }
  54 }
  55
  56 void FrameTimingTracker::SaveMainFrameTimeStamps(
  57     const std::vector<int64_t>& request_ids,
  58     base::TimeTicks main_frame_time,
  59     base::TimeTicks end_time,
  60     int source_frame_number) {
  61   if (!main_frame_events_)
  62     main_frame_events_.reset(new MainFrameTimingSet);
  63   for (const auto& request : request_ids) {
  64     std::vector<MainFrameTimingEvent>& events = (*main_frame_events_)[request];
  65     events.push_back(
  66         MainFrameTimingEvent(source_frame_number, main_frame_time, end_time));
  67   }
  68 }
  69
  70 scoped_ptr<FrameTimingTracker::CompositeTimingSet>
  71 FrameTimingTracker::GroupCompositeCountsByRectId() {
  72   if (!composite_events_)
  73     return make_scoped_ptr(new CompositeTimingSet);
  74   for (auto& infos : *composite_events_) {
  75     std::sort(
  76         infos.second.begin(), infos.second.end(),
  77         [](const CompositeTimingEvent& lhs, const CompositeTimingEvent& rhs) {
  78           return lhs.timestamp < rhs.timestamp;
  79         });
  80   }
  81   return composite_events_.Pass();
  82 }
  83
  84 scoped_ptr<FrameTimingTracker::MainFrameTimingSet>
  85 FrameTimingTracker::GroupMainFrameCountsByRectId() {
  86   if (!main_frame_events_)
  87     return make_scoped_ptr(new MainFrameTimingSet);
  88   for (auto& infos : *main_frame_events_) {
  89     std::sort(
  90         infos.second.begin(), infos.second.end(),
  91         [](const MainFrameTimingEvent& lhs, const MainFrameTimingEvent& rhs) {
  92           return lhs.timestamp < rhs.timestamp;
  93         });
  94   }
  95   return main_frame_events_.Pass();
  96 }
  97
  98 }  // namespace cc