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// Copyright 2012 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/resources/picture_layer_tiling_set.h"
#include <vector>
#include "cc/resources/resource_pool.h"
#include "cc/resources/resource_provider.h"
#include "cc/test/fake_output_surface.h"
#include "cc/test/fake_picture_layer_tiling_client.h"
#include "cc/test/fake_tile_manager_client.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/size_conversions.h"
namespace cc {
namespace {
TEST(PictureLayerTilingSetTest, NoResources) {
FakePictureLayerTilingClient client;
gfx::Size layer_bounds(1000, 800);
PictureLayerTilingSet set(&client, layer_bounds);
client.SetTileSize(gfx::Size(256, 256));
set.AddTiling(1.0);
set.AddTiling(1.5);
set.AddTiling(2.0);
float contents_scale = 2.0;
gfx::Size content_bounds(
gfx::ToCeiledSize(gfx::ScaleSize(layer_bounds, contents_scale)));
gfx::Rect content_rect(content_bounds);
Region remaining(content_rect);
PictureLayerTilingSet::CoverageIterator iter(
&set,
contents_scale,
content_rect,
contents_scale);
for (; iter; ++iter) {
gfx::Rect geometry_rect = iter.geometry_rect();
EXPECT_TRUE(content_rect.Contains(geometry_rect));
ASSERT_TRUE(remaining.Contains(geometry_rect));
remaining.Subtract(geometry_rect);
// No tiles have resources, so no iter represents a real tile.
EXPECT_FALSE(*iter);
}
EXPECT_TRUE(remaining.IsEmpty());
}
class PictureLayerTilingSetTestWithResources : public testing::Test {
public:
void runTest(
int num_tilings,
float min_scale,
float scale_increment,
float ideal_contents_scale,
float expected_scale) {
scoped_ptr<FakeOutputSurface> output_surface =
FakeOutputSurface::Create3d();
scoped_ptr<ResourceProvider> resource_provider =
ResourceProvider::Create(output_surface.get(), 0);
FakePictureLayerTilingClient client;
client.SetTileSize(gfx::Size(256, 256));
gfx::Size layer_bounds(1000, 800);
PictureLayerTilingSet set(&client, layer_bounds);
float scale = min_scale;
RasterMode mode = HIGH_QUALITY_NO_LCD_RASTER_MODE;
for (int i = 0; i < num_tilings; ++i, scale += scale_increment) {
PictureLayerTiling* tiling = set.AddTiling(scale);
tiling->CreateAllTilesForTesting();
std::vector<Tile*> tiles = tiling->AllTilesForTesting();
for (size_t i = 0; i < tiles.size(); ++i) {
EXPECT_FALSE(tiles[i]->tile_version(mode).GetResourceForTesting());
tiles[i]->tile_version(mode).SetResourceForTesting(
make_scoped_ptr(new ResourcePool::Resource(
resource_provider.get(),
gfx::Size(1, 1),
resource_provider->best_texture_format())));
}
}
float max_contents_scale = scale;
gfx::Size content_bounds(
gfx::ToCeiledSize(gfx::ScaleSize(layer_bounds, max_contents_scale)));
gfx::Rect content_rect(content_bounds);
Region remaining(content_rect);
PictureLayerTilingSet::CoverageIterator iter(
&set,
max_contents_scale,
content_rect,
ideal_contents_scale);
for (; iter; ++iter) {
gfx::Rect geometry_rect = iter.geometry_rect();
EXPECT_TRUE(content_rect.Contains(geometry_rect));
ASSERT_TRUE(remaining.Contains(geometry_rect));
remaining.Subtract(geometry_rect);
float scale = iter.CurrentTiling()->contents_scale();
EXPECT_EQ(expected_scale, scale);
if (num_tilings)
EXPECT_TRUE(*iter);
else
EXPECT_FALSE(*iter);
}
EXPECT_TRUE(remaining.IsEmpty());
}
};
TEST_F(PictureLayerTilingSetTestWithResources, NoTilings) {
runTest(0, 0.f, 0.f, 2.f, 0.f);
}
TEST_F(PictureLayerTilingSetTestWithResources, OneTiling_Smaller) {
runTest(1, 1.f, 0.f, 2.f, 1.f);
}
TEST_F(PictureLayerTilingSetTestWithResources, OneTiling_Larger) {
runTest(1, 3.f, 0.f, 2.f, 3.f);
}
TEST_F(PictureLayerTilingSetTestWithResources, TwoTilings_Smaller) {
runTest(2, 1.f, 1.f, 3.f, 2.f);
}
TEST_F(PictureLayerTilingSetTestWithResources, TwoTilings_SmallerEqual) {
runTest(2, 1.f, 1.f, 2.f, 2.f);
}
TEST_F(PictureLayerTilingSetTestWithResources, TwoTilings_LargerEqual) {
runTest(2, 1.f, 1.f, 1.f, 1.f);
}
TEST_F(PictureLayerTilingSetTestWithResources, TwoTilings_Larger) {
runTest(2, 2.f, 8.f, 1.f, 2.f);
}
TEST_F(PictureLayerTilingSetTestWithResources, ManyTilings_Equal) {
runTest(10, 1.f, 1.f, 5.f, 5.f);
}
TEST_F(PictureLayerTilingSetTestWithResources, ManyTilings_NotEqual) {
runTest(10, 1.f, 1.f, 4.5f, 5.f);
}
} // namespace
} // namespace cc
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