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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/resources/picture_pile.h"
#include "cc/test/fake_content_layer_client.h"
#include "cc/test/fake_rendering_stats_instrumentation.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/rect_conversions.h"
#include "ui/gfx/size_conversions.h"
namespace cc {
namespace {
class TestPicturePile : public PicturePile {
public:
using PicturePile::buffer_pixels;
PictureListMap& picture_list_map() { return picture_list_map_; }
typedef PicturePile::PictureList PictureList;
typedef PicturePile::PictureListMapKey PictureListMapKey;
typedef PicturePile::PictureListMap PictureListMap;
protected:
virtual ~TestPicturePile() {}
};
TEST(PicturePileTest, SmallInvalidateInflated) {
FakeContentLayerClient client;
FakeRenderingStatsInstrumentation stats_instrumentation;
scoped_refptr<TestPicturePile> pile = new TestPicturePile;
SkColor background_color = SK_ColorBLUE;
float min_scale = 0.125;
gfx::Size base_picture_size = pile->tiling().max_texture_size();
gfx::Size layer_size = base_picture_size;
pile->Resize(layer_size);
pile->SetTileGridSize(gfx::Size(1000, 1000));
pile->SetMinContentsScale(min_scale);
// Update the whole layer.
pile->Update(&client,
background_color,
false,
gfx::Rect(layer_size),
gfx::Rect(layer_size),
&stats_instrumentation);
// Invalidate something inside a tile.
gfx::Rect invalidate_rect(50, 50, 1, 1);
pile->Update(&client,
background_color,
false,
invalidate_rect,
gfx::Rect(layer_size),
&stats_instrumentation);
EXPECT_EQ(1, pile->tiling().num_tiles_x());
EXPECT_EQ(1, pile->tiling().num_tiles_y());
TestPicturePile::PictureList& picture_list =
pile->picture_list_map().find(
TestPicturePile::PictureListMapKey(0, 0))->second;
EXPECT_EQ(2u, picture_list.size());
for (TestPicturePile::PictureList::iterator it = picture_list.begin();
it != picture_list.end();
++it) {
scoped_refptr<Picture> picture = *it;
gfx::Rect picture_rect =
gfx::ScaleToEnclosedRect(picture->LayerRect(), min_scale);
// The invalidation in each tile should have been made large enough
// that scaling it never makes a rect smaller than 1 px wide or tall.
EXPECT_FALSE(picture_rect.IsEmpty()) << "Picture rect " <<
picture_rect.ToString();
}
}
TEST(PicturePileTest, LargeInvalidateInflated) {
FakeContentLayerClient client;
FakeRenderingStatsInstrumentation stats_instrumentation;
scoped_refptr<TestPicturePile> pile = new TestPicturePile;
SkColor background_color = SK_ColorBLUE;
float min_scale = 0.125;
gfx::Size base_picture_size = pile->tiling().max_texture_size();
gfx::Size layer_size = base_picture_size;
pile->Resize(layer_size);
pile->SetTileGridSize(gfx::Size(1000, 1000));
pile->SetMinContentsScale(min_scale);
// Update the whole layer.
pile->Update(&client,
background_color,
false,
gfx::Rect(layer_size),
gfx::Rect(layer_size),
&stats_instrumentation);
// Invalidate something inside a tile.
gfx::Rect invalidate_rect(50, 50, 100, 100);
pile->Update(&client,
background_color,
false,
invalidate_rect,
gfx::Rect(layer_size),
&stats_instrumentation);
EXPECT_EQ(1, pile->tiling().num_tiles_x());
EXPECT_EQ(1, pile->tiling().num_tiles_y());
TestPicturePile::PictureList& picture_list =
pile->picture_list_map().find(
TestPicturePile::PictureListMapKey(0, 0))->second;
EXPECT_EQ(2u, picture_list.size());
int expected_inflation = pile->buffer_pixels();
scoped_refptr<Picture> base_picture = *picture_list.begin();
gfx::Rect base_picture_rect(layer_size);
base_picture_rect.Inset(-expected_inflation, -expected_inflation);
EXPECT_EQ(base_picture_rect.ToString(),
base_picture->LayerRect().ToString());
scoped_refptr<Picture> picture = *(++picture_list.begin());
gfx::Rect picture_rect(invalidate_rect);
picture_rect.Inset(-expected_inflation, -expected_inflation);
EXPECT_EQ(picture_rect.ToString(),
picture->LayerRect().ToString());
}
TEST(PicturePileTest, InvalidateOnTileBoundaryInflated) {
FakeContentLayerClient client;
FakeRenderingStatsInstrumentation stats_instrumentation;
scoped_refptr<TestPicturePile> pile = new TestPicturePile;
SkColor background_color = SK_ColorBLUE;
float min_scale = 0.125;
gfx::Size base_picture_size = pile->tiling().max_texture_size();
gfx::Size layer_size =
gfx::ToFlooredSize(gfx::ScaleSize(base_picture_size, 2.f));
pile->Resize(layer_size);
pile->SetTileGridSize(gfx::Size(1000, 1000));
pile->SetMinContentsScale(min_scale);
// Due to border pixels, we should have 3 tiles.
EXPECT_EQ(3, pile->tiling().num_tiles_x());
EXPECT_EQ(3, pile->tiling().num_tiles_y());
// We should have 1/.125 - 1 = 7 border pixels.
EXPECT_EQ(7, pile->buffer_pixels());
EXPECT_EQ(7, pile->tiling().border_texels());
// Update the whole layer.
pile->Update(&client,
background_color,
false,
gfx::Rect(layer_size),
gfx::Rect(layer_size),
&stats_instrumentation);
// Invalidate something just over a tile boundary by a single pixel.
// This will invalidate the tile (1, 1), as well as 1 row of pixels in (1, 0).
gfx::Rect invalidate_rect(
pile->tiling().TileBoundsWithBorder(0, 0).right(),
pile->tiling().TileBoundsWithBorder(0, 0).bottom() - 1,
50,
50);
pile->Update(&client,
background_color,
false,
invalidate_rect,
gfx::Rect(layer_size),
&stats_instrumentation);
for (int i = 0; i < pile->tiling().num_tiles_x(); ++i) {
for (int j = 0; j < pile->tiling().num_tiles_y(); ++j) {
// (1, 0) and (1, 1) should be invalidated partially.
bool expect_invalidated = i == 1 && (j == 0 || j == 1);
TestPicturePile::PictureList& picture_list =
pile->picture_list_map().find(
TestPicturePile::PictureListMapKey(i, j))->second;
if (!expect_invalidated) {
EXPECT_EQ(1u, picture_list.size()) << "For i,j " << i << "," << j;
continue;
}
EXPECT_EQ(2u, picture_list.size()) << "For i,j " << i << "," << j;
for (TestPicturePile::PictureList::iterator it = picture_list.begin();
it != picture_list.end();
++it) {
scoped_refptr<Picture> picture = *it;
gfx::Rect picture_rect =
gfx::ScaleToEnclosedRect(picture->LayerRect(), min_scale);
// The invalidation in each tile should have been made large enough
// that scaling it never makes a rect smaller than 1 px wide or tall.
EXPECT_FALSE(picture_rect.IsEmpty()) << "Picture rect " <<
picture_rect.ToString();
}
}
}
}
} // namespace
} // namespace cc
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