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// 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/debug/picture_record_benchmark.h"
#include <algorithm>
#include "base/basictypes.h"
#include "base/values.h"
#include "cc/layers/layer.h"
#include "cc/layers/picture_layer.h"
#include "cc/trees/layer_tree_host.h"
#include "cc/trees/layer_tree_host_common.h"
#include "ui/gfx/rect.h"
namespace cc {
namespace {
const int kPositionIncrement = 100;
const int kTileGridSize = 512;
const int kTileGridBorder = 1;
} // namespace
PictureRecordBenchmark::PictureRecordBenchmark(
scoped_ptr<base::Value> value,
const MicroBenchmark::DoneCallback& callback)
: MicroBenchmark(callback) {
if (!value)
return;
base::ListValue* list = NULL;
value->GetAsList(&list);
if (!list)
return;
for (base::ListValue::iterator it = list->begin(); it != list->end(); ++it) {
base::DictionaryValue* dictionary = NULL;
(*it)->GetAsDictionary(&dictionary);
if (!dictionary ||
!dictionary->HasKey("width") ||
!dictionary->HasKey("height"))
continue;
int width, height;
dictionary->GetInteger("width", &width);
dictionary->GetInteger("height", &height);
dimensions_.push_back(std::make_pair(width, height));
}
}
PictureRecordBenchmark::~PictureRecordBenchmark() {}
void PictureRecordBenchmark::DidUpdateLayers(LayerTreeHost* host) {
LayerTreeHostCommon::CallFunctionForSubtree(
host->root_layer(),
base::Bind(&PictureRecordBenchmark::Run, base::Unretained(this)));
scoped_ptr<base::ListValue> results(new base::ListValue());
for (std::map<std::pair<int, int>, TotalTime>::iterator it = times_.begin();
it != times_.end();
++it) {
std::pair<int, int> dimensions = it->first;
base::TimeDelta total_time = it->second.first;
unsigned total_count = it->second.second;
double average_time = 0.0;
if (total_count > 0)
average_time = total_time.InMillisecondsF() / total_count;
scoped_ptr<base::DictionaryValue> result(new base::DictionaryValue());
result->SetInteger("width", dimensions.first);
result->SetInteger("height", dimensions.second);
result->SetInteger("samples_count", total_count);
result->SetDouble("time_ms", average_time);
results->Append(result.release());
}
NotifyDone(results.PassAs<base::Value>());
}
void PictureRecordBenchmark::Run(Layer* layer) {
layer->RunMicroBenchmark(this);
}
void PictureRecordBenchmark::RunOnLayer(PictureLayer* layer) {
ContentLayerClient* painter = layer->client();
gfx::Size content_bounds = layer->content_bounds();
SkTileGridFactory::TileGridInfo tile_grid_info;
tile_grid_info.fTileInterval.set(kTileGridSize - 2 * kTileGridBorder,
kTileGridSize - 2 * kTileGridBorder);
tile_grid_info.fMargin.set(kTileGridBorder, kTileGridBorder);
tile_grid_info.fOffset.set(-kTileGridBorder, -kTileGridBorder);
for (size_t i = 0; i < dimensions_.size(); ++i) {
std::pair<int, int> dimensions = dimensions_[i];
int width = dimensions.first;
int height = dimensions.second;
int y_limit = std::max(1, content_bounds.height() - height);
int x_limit = std::max(1, content_bounds.width() - width);
for (int y = 0; y < y_limit; y += kPositionIncrement) {
for (int x = 0; x < x_limit; x += kPositionIncrement) {
gfx::Rect rect = gfx::Rect(x, y, width, height);
base::TimeTicks start = base::TimeTicks::HighResNow();
scoped_refptr<Picture> picture = Picture::Create(
rect, painter, tile_grid_info, false, 0, Picture::RECORD_NORMALLY);
base::TimeTicks end = base::TimeTicks::HighResNow();
base::TimeDelta duration = end - start;
TotalTime& total_time = times_[dimensions];
total_time.first += duration;
total_time.second++;
}
}
}
}
} // namespace cc
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