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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 <map>
#include <utility>
#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;
PictureMap& picture_map() { return picture_map_; }
typedef PicturePile::PictureInfo PictureInfo;
typedef PicturePile::PictureMapKey PictureMapKey;
typedef PicturePile::PictureMap PictureMap;
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),
1,
&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),
2,
&stats_instrumentation);
EXPECT_EQ(1, pile->tiling().num_tiles_x());
EXPECT_EQ(1, pile->tiling().num_tiles_y());
TestPicturePile::PictureInfo& picture_info =
pile->picture_map().find(TestPicturePile::PictureMapKey(0, 0))->second;
// We should have a picture.
EXPECT_TRUE(!!picture_info.GetPicture());
gfx::Rect picture_rect = gfx::ScaleToEnclosedRect(
picture_info.GetPicture()->LayerRect(), min_scale);
// The the picture should be 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),
1,
&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),
2,
&stats_instrumentation);
EXPECT_EQ(1, pile->tiling().num_tiles_x());
EXPECT_EQ(1, pile->tiling().num_tiles_y());
TestPicturePile::PictureInfo& picture_info =
pile->picture_map().find(TestPicturePile::PictureMapKey(0, 0))->second;
EXPECT_TRUE(!!picture_info.GetPicture());
int expected_inflation = pile->buffer_pixels();
Picture* base_picture = picture_info.GetPicture();
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());
}
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 to create initial pictures.
pile->Update(&client,
background_color,
false,
gfx::Rect(layer_size),
gfx::Rect(layer_size),
0,
&stats_instrumentation);
// Invalidate everything again to have a non zero invalidation
// frequency.
pile->Update(&client,
background_color,
false,
gfx::Rect(layer_size),
gfx::Rect(layer_size),
1,
&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),
2,
&stats_instrumentation);
for (int i = 0; i < pile->tiling().num_tiles_x(); ++i) {
for (int j = 0; j < pile->tiling().num_tiles_y(); ++j) {
TestPicturePile::PictureInfo& picture_info =
pile->picture_map().find(
TestPicturePile::PictureMapKey(i, j))->second;
// Expect (1, 1) and (1, 0) to be invalidated once more
// than the rest of the tiles.
if (i == 1 && (j == 0 || j == 1)) {
EXPECT_FLOAT_EQ(
2.0f / TestPicturePile::PictureInfo::INVALIDATION_FRAMES_TRACKED,
picture_info.GetInvalidationFrequencyForTesting());
} else {
EXPECT_FLOAT_EQ(
1.0f / TestPicturePile::PictureInfo::INVALIDATION_FRAMES_TRACKED,
picture_info.GetInvalidationFrequencyForTesting());
}
}
}
}
TEST(PicturePileTest, StopRecordingOffscreenInvalidations) {
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, 4.f));
pile->Resize(layer_size);
pile->SetTileGridSize(gfx::Size(1000, 1000));
pile->SetMinContentsScale(min_scale);
gfx::Rect viewport(0, 0, layer_size.width(), 1);
// Update the whole layer until the invalidation frequency is high.
int frame;
for (frame = 0; frame < 33; ++frame) {
pile->Update(&client,
background_color,
false,
gfx::Rect(layer_size),
viewport,
frame,
&stats_instrumentation);
}
// Make sure we have a high invalidation frequency.
for (int i = 0; i < pile->tiling().num_tiles_x(); ++i) {
for (int j = 0; j < pile->tiling().num_tiles_y(); ++j) {
TestPicturePile::PictureInfo& picture_info =
pile->picture_map().find(
TestPicturePile::PictureMapKey(i, j))->second;
EXPECT_FLOAT_EQ(1.0f, picture_info.GetInvalidationFrequencyForTesting())
<< "i " << i << " j " << j;
}
}
// Update once more with a small viewport 0,0 layer_width by 1
pile->Update(&client,
background_color,
false,
gfx::Rect(layer_size),
viewport,
frame,
&stats_instrumentation);
for (int i = 0; i < pile->tiling().num_tiles_x(); ++i) {
for (int j = 0; j < pile->tiling().num_tiles_y(); ++j) {
TestPicturePile::PictureInfo& picture_info =
pile->picture_map().find(
TestPicturePile::PictureMapKey(i, j))->second;
EXPECT_FLOAT_EQ(1.0f, picture_info.GetInvalidationFrequencyForTesting());
// If the y far enough away we expect to find no picture (no re-recording
// happened). For close y, the picture should change.
if (j >= 2)
EXPECT_FALSE(picture_info.GetPicture()) << "i " << i << " j " << j;
else
EXPECT_TRUE(picture_info.GetPicture()) << "i " << i << " j " << j;
}
}
// Now update with no invalidation and full viewport
pile->Update(&client,
background_color,
false,
gfx::Rect(),
gfx::Rect(layer_size),
frame+1,
&stats_instrumentation);
for (int i = 0; i < pile->tiling().num_tiles_x(); ++i) {
for (int j = 0; j < pile->tiling().num_tiles_y(); ++j) {
TestPicturePile::PictureInfo& picture_info =
pile->picture_map().find(
TestPicturePile::PictureMapKey(i, j))->second;
// Expect the invalidation frequency to be less than 1, since we just
// updated with no invalidations.
float expected_frequency =
1.0f -
1.0f / TestPicturePile::PictureInfo::INVALIDATION_FRAMES_TRACKED;
EXPECT_FLOAT_EQ(expected_frequency,
picture_info.GetInvalidationFrequencyForTesting());
// We expect that there are pictures everywhere now.
EXPECT_TRUE(picture_info.GetPicture()) << "i " << i << " j " << j;
}
}
}
} // namespace
} // namespace cc