cc/debug/micro_benchmark_controller.cc

   1 // Copyright 2013 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/micro_benchmark_controller.h"
   6
   7 #include <limits>
   8 #include <string>
   9
  10 #include "base/callback.h"
  11 #include "base/message_loop/message_loop_proxy.h"
  12 #include "base/values.h"
  13 #include "cc/debug/invalidation_benchmark.h"
  14 #include "cc/debug/picture_record_benchmark.h"
  15 #include "cc/debug/rasterize_and_record_benchmark.h"
  16 #include "cc/debug/unittest_only_benchmark.h"
  17 #include "cc/trees/layer_tree_host.h"
  18 #include "cc/trees/layer_tree_host_impl.h"
  19
  20 namespace cc {
  21
  22 int MicroBenchmarkController::next_id_ = 1;
  23
  24 namespace {
  25
  26 scoped_ptr<MicroBenchmark> CreateBenchmark(
  27     const std::string& name,
  28     scoped_ptr<base::Value> value,
  29     const MicroBenchmark::DoneCallback& callback) {
  30   if (name == "invalidation_benchmark") {
  31     return make_scoped_ptr(new InvalidationBenchmark(value.Pass(), callback));
  32   } else if (name == "picture_record_benchmark") {
  33     return make_scoped_ptr(new PictureRecordBenchmark(value.Pass(), callback));
  34   } else if (name == "rasterize_and_record_benchmark") {
  35     return make_scoped_ptr(
  36         new RasterizeAndRecordBenchmark(value.Pass(), callback));
  37   } else if (name == "unittest_only_benchmark") {
  38     return make_scoped_ptr(new UnittestOnlyBenchmark(value.Pass(), callback));
  39   }
  40   return nullptr;
  41 }
  42
  43 class IsDonePredicate {
  44  public:
  45   typedef const MicroBenchmark* argument_type;
  46   typedef bool result_type;
  47
  48   result_type operator()(argument_type benchmark) const {
  49     return benchmark->IsDone();
  50   }
  51 };
  52
  53 }  // namespace
  54
  55 MicroBenchmarkController::MicroBenchmarkController(LayerTreeHost* host)
  56     : host_(host),
  57       main_controller_message_loop_(base::MessageLoopProxy::current().get()) {
  58   DCHECK(host_);
  59 }
  60
  61 MicroBenchmarkController::~MicroBenchmarkController() {}
  62
  63 int MicroBenchmarkController::ScheduleRun(
  64     const std::string& micro_benchmark_name,
  65     scoped_ptr<base::Value> value,
  66     const MicroBenchmark::DoneCallback& callback) {
  67   scoped_ptr<MicroBenchmark> benchmark =
  68       CreateBenchmark(micro_benchmark_name, value.Pass(), callback);
  69   if (benchmark.get()) {
  70     int id = GetNextIdAndIncrement();
  71     benchmark->set_id(id);
  72     benchmarks_.push_back(benchmark.Pass());
  73     host_->SetNeedsCommit();
  74     return id;
  75   }
  76   return 0;
  77 }
  78
  79 int MicroBenchmarkController::GetNextIdAndIncrement() {
  80   int id = next_id_++;
  81   // Wrap around to 1 if we overflow (very unlikely).
  82   if (next_id_ == std::numeric_limits<int>::max())
  83     next_id_ = 1;
  84   return id;
  85 }
  86
  87 bool MicroBenchmarkController::SendMessage(int id,
  88                                            scoped_ptr<base::Value> value) {
  89   for (ScopedPtrVector<MicroBenchmark>::iterator it = benchmarks_.begin();
  90        it != benchmarks_.end();
  91        ++it) {
  92     if ((*it)->id() == id)
  93       return (*it)->ProcessMessage(value.Pass());
  94   }
  95   return false;
  96 }
  97
  98 void MicroBenchmarkController::ScheduleImplBenchmarks(
  99     LayerTreeHostImpl* host_impl) {
 100   for (ScopedPtrVector<MicroBenchmark>::iterator it = benchmarks_.begin();
 101        it != benchmarks_.end();
 102        ++it) {
 103     scoped_ptr<MicroBenchmarkImpl> benchmark_impl;
 104     if (!(*it)->ProcessedForBenchmarkImpl()) {
 105       benchmark_impl =
 106           (*it)->GetBenchmarkImpl(main_controller_message_loop_);
 107     }
 108
 109     if (benchmark_impl.get())
 110       host_impl->ScheduleMicroBenchmark(benchmark_impl.Pass());
 111   }
 112 }
 113
 114 void MicroBenchmarkController::DidUpdateLayers() {
 115   for (ScopedPtrVector<MicroBenchmark>::iterator it = benchmarks_.begin();
 116        it != benchmarks_.end();
 117        ++it) {
 118     if (!(*it)->IsDone())
 119       (*it)->DidUpdateLayers(host_);
 120   }
 121
 122   CleanUpFinishedBenchmarks();
 123 }
 124
 125 void MicroBenchmarkController::CleanUpFinishedBenchmarks() {
 126   benchmarks_.erase(
 127       benchmarks_.partition(std::not1(IsDonePredicate())),
 128       benchmarks_.end());
 129 }
 130
 131 }  // namespace cc