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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 "base/time/time.h"
#include "cc/resources/tile.h"
#include "cc/resources/tile_priority.h"
#include "cc/test/fake_output_surface.h"
#include "cc/test/fake_output_surface_client.h"
#include "cc/test/fake_picture_pile_impl.h"
#include "cc/test/fake_tile_manager.h"
#include "cc/test/fake_tile_manager_client.h"
#include "cc/test/lap_timer.h"
#include "cc/test/test_tile_priorities.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/perf/perf_test.h"
namespace cc {
namespace {
static const int kTimeLimitMillis = 2000;
static const int kWarmupRuns = 5;
static const int kTimeCheckInterval = 10;
class TileManagerPerfTest : public testing::Test {
public:
typedef std::vector<std::pair<scoped_refptr<Tile>, ManagedTileBin> >
TileBinVector;
TileManagerPerfTest()
: timer_(kWarmupRuns,
base::TimeDelta::FromMilliseconds(kTimeLimitMillis),
kTimeCheckInterval) {}
// Overridden from testing::Test:
virtual void SetUp() OVERRIDE {
output_surface_ = FakeOutputSurface::Create3d();
CHECK(output_surface_->BindToClient(&output_surface_client_));
resource_provider_ =
ResourceProvider::Create(output_surface_.get(), NULL, 0, false, 1);
size_t raster_task_limit_bytes = 32 * 1024 * 1024; // 16-64MB in practice.
tile_manager_ =
make_scoped_ptr(new FakeTileManager(&tile_manager_client_,
resource_provider_.get(),
raster_task_limit_bytes));
picture_pile_ = FakePicturePileImpl::CreatePile();
}
GlobalStateThatImpactsTilePriority GlobalStateForTest() {
GlobalStateThatImpactsTilePriority state;
gfx::Size tile_size = settings_.default_tile_size;
state.memory_limit_in_bytes =
10000u * 4u *
static_cast<size_t>(tile_size.width() * tile_size.height());
state.num_resources_limit = 10000;
state.memory_limit_policy = ALLOW_ANYTHING;
state.tree_priority = SMOOTHNESS_TAKES_PRIORITY;
return state;
}
virtual void TearDown() OVERRIDE {
tile_manager_.reset(NULL);
picture_pile_ = NULL;
}
TilePriority GetTilePriorityFromBin(ManagedTileBin bin) {
switch (bin) {
case NOW_AND_READY_TO_DRAW_BIN:
case NOW_BIN:
return TilePriorityForNowBin();
case SOON_BIN:
return TilePriorityForSoonBin();
case EVENTUALLY_AND_ACTIVE_BIN:
case EVENTUALLY_BIN:
return TilePriorityForEventualBin();
case AT_LAST_BIN:
case AT_LAST_AND_ACTIVE_BIN:
case NEVER_BIN:
return TilePriority();
default:
NOTREACHED();
return TilePriority();
}
}
ManagedTileBin GetNextBin(ManagedTileBin bin) {
switch (bin) {
case NOW_AND_READY_TO_DRAW_BIN:
case NOW_BIN:
return SOON_BIN;
case SOON_BIN:
return EVENTUALLY_BIN;
case EVENTUALLY_AND_ACTIVE_BIN:
case EVENTUALLY_BIN:
return NEVER_BIN;
case AT_LAST_BIN:
case AT_LAST_AND_ACTIVE_BIN:
case NEVER_BIN:
return NOW_BIN;
default:
NOTREACHED();
return NEVER_BIN;
}
}
void CreateBinTiles(int count, ManagedTileBin bin, TileBinVector* tiles) {
for (int i = 0; i < count; ++i) {
scoped_refptr<Tile> tile =
tile_manager_->CreateTile(picture_pile_.get(),
settings_.default_tile_size,
gfx::Rect(),
gfx::Rect(),
1.0,
0,
0,
Tile::USE_LCD_TEXT);
tile->SetPriority(ACTIVE_TREE, GetTilePriorityFromBin(bin));
tile->SetPriority(PENDING_TREE, GetTilePriorityFromBin(bin));
tiles->push_back(std::make_pair(tile, bin));
}
}
void CreateTiles(int count, TileBinVector* tiles) {
// Roughly an equal amount of all bins.
int count_per_bin = count / NUM_BINS;
CreateBinTiles(count_per_bin, NOW_BIN, tiles);
CreateBinTiles(count_per_bin, SOON_BIN, tiles);
CreateBinTiles(count_per_bin, EVENTUALLY_BIN, tiles);
CreateBinTiles(count - 3 * count_per_bin, NEVER_BIN, tiles);
}
void RunManageTilesTest(const std::string& test_name,
unsigned tile_count,
int priority_change_percent) {
DCHECK_GE(tile_count, 100u);
DCHECK_GE(priority_change_percent, 0);
DCHECK_LE(priority_change_percent, 100);
TileBinVector tiles;
CreateTiles(tile_count, &tiles);
timer_.Reset();
do {
if (priority_change_percent > 0) {
for (unsigned i = 0; i < tile_count;
i += 100 / priority_change_percent) {
Tile* tile = tiles[i].first.get();
ManagedTileBin bin = GetNextBin(tiles[i].second);
tile->SetPriority(ACTIVE_TREE, GetTilePriorityFromBin(bin));
tile->SetPriority(PENDING_TREE, GetTilePriorityFromBin(bin));
tiles[i].second = bin;
}
}
tile_manager_->ManageTiles(GlobalStateForTest());
tile_manager_->CheckForCompletedTasks();
timer_.NextLap();
} while (!timer_.HasTimeLimitExpired());
perf_test::PrintResult(
"manage_tiles", "", test_name, timer_.LapsPerSecond(), "runs/s", true);
}
private:
FakeTileManagerClient tile_manager_client_;
LayerTreeSettings settings_;
scoped_ptr<FakeTileManager> tile_manager_;
scoped_refptr<FakePicturePileImpl> picture_pile_;
FakeOutputSurfaceClient output_surface_client_;
scoped_ptr<FakeOutputSurface> output_surface_;
scoped_ptr<ResourceProvider> resource_provider_;
LapTimer timer_;
};
TEST_F(TileManagerPerfTest, ManageTiles) {
RunManageTilesTest("100_0", 100, 0);
RunManageTilesTest("1000_0", 1000, 0);
RunManageTilesTest("10000_0", 10000, 0);
RunManageTilesTest("100_10", 100, 10);
RunManageTilesTest("1000_10", 1000, 10);
RunManageTilesTest("10000_10", 10000, 10);
RunManageTilesTest("100_100", 100, 100);
RunManageTilesTest("1000_100", 1000, 100);
RunManageTilesTest("10000_100", 10000, 100);
}
} // namespace
} // namespace cc
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