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picture_layer_tiling_unittest.cc
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picture_layer_tiling_unittest.cc
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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/tiles/picture_layer_tiling.h"
#include <stddef.h>
#include <limits>
#include <set>
#include "base/macros.h"
#include "base/memory/ptr_util.h"
#include "cc/base/math_util.h"
#include "cc/test/fake_output_surface.h"
#include "cc/test/fake_output_surface_client.h"
#include "cc/test/fake_picture_layer_tiling_client.h"
#include "cc/test/fake_raster_source.h"
#include "cc/test/test_context_provider.h"
#include "cc/test/test_shared_bitmap_manager.h"
#include "cc/tiles/picture_layer_tiling_set.h"
#include "cc/trees/layer_tree_settings.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/geometry/quad_f.h"
#include "ui/gfx/geometry/rect_conversions.h"
#include "ui/gfx/geometry/size_conversions.h"
namespace cc {
namespace {
static gfx::Rect ViewportInLayerSpace(
const gfx::Transform& transform,
const gfx::Size& device_viewport) {
gfx::Transform inverse;
if (!transform.GetInverse(&inverse))
return gfx::Rect();
return MathUtil::ProjectEnclosingClippedRect(inverse,
gfx::Rect(device_viewport));
}
class TestablePictureLayerTiling : public PictureLayerTiling {
public:
using PictureLayerTiling::SetLiveTilesRect;
using PictureLayerTiling::TileAt;
static std::unique_ptr<TestablePictureLayerTiling> Create(
WhichTree tree,
float contents_scale,
scoped_refptr<RasterSource> raster_source,
PictureLayerTilingClient* client,
const LayerTreeSettings& settings) {
return base::WrapUnique(new TestablePictureLayerTiling(
tree, contents_scale, raster_source, client,
settings.tiling_interest_area_padding,
settings.skewport_target_time_in_seconds,
settings.skewport_extrapolation_limit_in_screen_pixels));
}
gfx::Rect live_tiles_rect() const { return live_tiles_rect_; }
using PictureLayerTiling::RemoveTileAt;
using PictureLayerTiling::RemoveTilesInRegion;
protected:
TestablePictureLayerTiling(WhichTree tree,
float contents_scale,
scoped_refptr<RasterSource> raster_source,
PictureLayerTilingClient* client,
size_t tiling_interest_area_padding,
float skewport_target_time,
int skewport_extrapolation_limit)
: PictureLayerTiling(tree, contents_scale, raster_source, client) {}
};
class PictureLayerTilingIteratorTest : public testing::Test {
public:
PictureLayerTilingIteratorTest() {}
~PictureLayerTilingIteratorTest() override {}
void Initialize(const gfx::Size& tile_size,
float contents_scale,
const gfx::Size& layer_bounds) {
client_.SetTileSize(tile_size);
scoped_refptr<FakeRasterSource> raster_source =
FakeRasterSource::CreateFilled(layer_bounds);
tiling_ = TestablePictureLayerTiling::Create(PENDING_TREE, contents_scale,
raster_source, &client_,
LayerTreeSettings());
tiling_->set_resolution(HIGH_RESOLUTION);
}
void InitializeActive(const gfx::Size& tile_size,
float contents_scale,
const gfx::Size& layer_bounds) {
client_.SetTileSize(tile_size);
scoped_refptr<FakeRasterSource> raster_source =
FakeRasterSource::CreateFilled(layer_bounds);
tiling_ = TestablePictureLayerTiling::Create(ACTIVE_TREE, contents_scale,
raster_source, &client_,
LayerTreeSettings());
tiling_->set_resolution(HIGH_RESOLUTION);
}
void SetLiveRectAndVerifyTiles(const gfx::Rect& live_tiles_rect) {
tiling_->SetLiveTilesRect(live_tiles_rect);
std::vector<Tile*> tiles = tiling_->AllTilesForTesting();
for (std::vector<Tile*>::iterator iter = tiles.begin();
iter != tiles.end();
++iter) {
EXPECT_TRUE(live_tiles_rect.Intersects((*iter)->content_rect()));
}
}
void VerifyTilesExactlyCoverRect(
float rect_scale,
const gfx::Rect& request_rect,
const gfx::Rect& expect_rect) {
EXPECT_TRUE(request_rect.Contains(expect_rect));
// Iterators are not valid if this ratio is too large (i.e. the
// tiling is too high-res for a low-res destination rect.) This is an
// artifact of snapping geometry to integer coordinates and then mapping
// back to floating point texture coordinates.
float dest_to_contents_scale = tiling_->contents_scale() / rect_scale;
ASSERT_LE(dest_to_contents_scale, 2.0);
Region remaining = expect_rect;
for (PictureLayerTiling::CoverageIterator
iter(tiling_.get(), rect_scale, request_rect);
iter;
++iter) {
// Geometry cannot overlap previous geometry at all
gfx::Rect geometry = iter.geometry_rect();
EXPECT_TRUE(expect_rect.Contains(geometry));
EXPECT_TRUE(remaining.Contains(geometry));
remaining.Subtract(geometry);
// Sanity check that texture coords are within the texture rect.
gfx::RectF texture_rect = iter.texture_rect();
EXPECT_GE(texture_rect.x(), 0);
EXPECT_GE(texture_rect.y(), 0);
EXPECT_LE(texture_rect.right(), client_.TileSize().width());
EXPECT_LE(texture_rect.bottom(), client_.TileSize().height());
}
// The entire rect must be filled by geometry from the tiling.
EXPECT_TRUE(remaining.IsEmpty());
}
void VerifyTilesExactlyCoverRect(float rect_scale, const gfx::Rect& rect) {
VerifyTilesExactlyCoverRect(rect_scale, rect, rect);
}
void VerifyTiles(
float rect_scale,
const gfx::Rect& rect,
base::Callback<void(Tile* tile,
const gfx::Rect& geometry_rect)> callback) {
VerifyTiles(tiling_.get(),
rect_scale,
rect,
callback);
}
void VerifyTiles(
PictureLayerTiling* tiling,
float rect_scale,
const gfx::Rect& rect,
base::Callback<void(Tile* tile,
const gfx::Rect& geometry_rect)> callback) {
Region remaining = rect;
for (PictureLayerTiling::CoverageIterator iter(tiling, rect_scale, rect);
iter;
++iter) {
remaining.Subtract(iter.geometry_rect());
callback.Run(*iter, iter.geometry_rect());
}
EXPECT_TRUE(remaining.IsEmpty());
}
void VerifyTilesCoverNonContainedRect(float rect_scale,
const gfx::Rect& dest_rect) {
float dest_to_contents_scale = tiling_->contents_scale() / rect_scale;
gfx::Rect clamped_rect = gfx::ScaleToEnclosingRect(
gfx::Rect(tiling_->tiling_size()), 1.f / dest_to_contents_scale);
clamped_rect.Intersect(dest_rect);
VerifyTilesExactlyCoverRect(rect_scale, dest_rect, clamped_rect);
}
protected:
FakePictureLayerTilingClient client_;
std::unique_ptr<TestablePictureLayerTiling> tiling_;
private:
DISALLOW_COPY_AND_ASSIGN(PictureLayerTilingIteratorTest);
};
TEST_F(PictureLayerTilingIteratorTest, ResizeDeletesTiles) {
// Verifies that a resize with invalidation for newly exposed pixels will
// deletes tiles that intersect that invalidation.
gfx::Size tile_size(100, 100);
gfx::Size original_layer_size(10, 10);
InitializeActive(tile_size, 1.f, original_layer_size);
SetLiveRectAndVerifyTiles(gfx::Rect(original_layer_size));
// Tiling only has one tile, since its total size is less than one.
EXPECT_TRUE(tiling_->TileAt(0, 0));
// Stop creating tiles so that any invalidations are left as holes.
gfx::Size new_layer_size(200, 200);
scoped_refptr<FakeRasterSource> raster_source =
FakeRasterSource::CreatePartiallyFilled(new_layer_size, gfx::Rect());
Region invalidation =
SubtractRegions(gfx::Rect(tile_size), gfx::Rect(original_layer_size));
tiling_->SetRasterSourceAndResize(raster_source);
EXPECT_TRUE(tiling_->TileAt(0, 0));
tiling_->Invalidate(invalidation);
EXPECT_FALSE(tiling_->TileAt(0, 0));
}
TEST_F(PictureLayerTilingIteratorTest, CreateMissingTilesStaysInsideLiveRect) {
// The tiling has three rows and columns.
Initialize(gfx::Size(100, 100), 1.f, gfx::Size(250, 250));
EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_y());
// The live tiles rect is at the very edge of the right-most and
// bottom-most tiles. Their border pixels would still be inside the live
// tiles rect, but the tiles should not exist just for that.
int right = tiling_->TilingDataForTesting().TileBounds(2, 2).x();
int bottom = tiling_->TilingDataForTesting().TileBounds(2, 2).y();
SetLiveRectAndVerifyTiles(gfx::Rect(right, bottom));
EXPECT_FALSE(tiling_->TileAt(2, 0));
EXPECT_FALSE(tiling_->TileAt(2, 1));
EXPECT_FALSE(tiling_->TileAt(2, 2));
EXPECT_FALSE(tiling_->TileAt(1, 2));
EXPECT_FALSE(tiling_->TileAt(0, 2));
// Verify CreateMissingTilesInLiveTilesRect respects this.
tiling_->CreateMissingTilesInLiveTilesRect();
EXPECT_FALSE(tiling_->TileAt(2, 0));
EXPECT_FALSE(tiling_->TileAt(2, 1));
EXPECT_FALSE(tiling_->TileAt(2, 2));
EXPECT_FALSE(tiling_->TileAt(1, 2));
EXPECT_FALSE(tiling_->TileAt(0, 2));
}
TEST_F(PictureLayerTilingIteratorTest, ResizeTilingOverTileBorders) {
// The tiling has four rows and three columns.
Initialize(gfx::Size(100, 100), 1.f, gfx::Size(250, 350));
EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
EXPECT_EQ(4, tiling_->TilingDataForTesting().num_tiles_y());
// The live tiles rect covers the whole tiling.
SetLiveRectAndVerifyTiles(gfx::Rect(250, 350));
// Tiles in the bottom row and right column exist.
EXPECT_TRUE(tiling_->TileAt(2, 0));
EXPECT_TRUE(tiling_->TileAt(2, 1));
EXPECT_TRUE(tiling_->TileAt(2, 2));
EXPECT_TRUE(tiling_->TileAt(2, 3));
EXPECT_TRUE(tiling_->TileAt(1, 3));
EXPECT_TRUE(tiling_->TileAt(0, 3));
int right = tiling_->TilingDataForTesting().TileBounds(2, 2).x();
int bottom = tiling_->TilingDataForTesting().TileBounds(2, 3).y();
// Shrink the tiling so that the last tile row/column is entirely in the
// border pixels of the interior tiles. That row/column is removed.
scoped_refptr<FakeRasterSource> raster_source =
FakeRasterSource::CreateFilled(gfx::Size(right + 1, bottom + 1));
tiling_->SetRasterSourceAndResize(raster_source);
EXPECT_EQ(2, tiling_->TilingDataForTesting().num_tiles_x());
EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_y());
// The live tiles rect was clamped to the raster source size.
EXPECT_EQ(gfx::Rect(right + 1, bottom + 1), tiling_->live_tiles_rect());
// Since the row/column is gone, the tiles should be gone too.
EXPECT_FALSE(tiling_->TileAt(2, 0));
EXPECT_FALSE(tiling_->TileAt(2, 1));
EXPECT_FALSE(tiling_->TileAt(2, 2));
EXPECT_FALSE(tiling_->TileAt(2, 3));
EXPECT_FALSE(tiling_->TileAt(1, 3));
EXPECT_FALSE(tiling_->TileAt(0, 3));
// Growing outside the current right/bottom tiles border pixels should create
// the tiles again, even though the live rect has not changed size.
raster_source =
FakeRasterSource::CreateFilled(gfx::Size(right + 2, bottom + 2));
tiling_->SetRasterSourceAndResize(raster_source);
EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
EXPECT_EQ(4, tiling_->TilingDataForTesting().num_tiles_y());
// Not changed.
EXPECT_EQ(gfx::Rect(right + 1, bottom + 1), tiling_->live_tiles_rect());
// The last row/column tiles are inside the live tiles rect.
EXPECT_TRUE(gfx::Rect(right + 1, bottom + 1).Intersects(
tiling_->TilingDataForTesting().TileBounds(2, 0)));
EXPECT_TRUE(gfx::Rect(right + 1, bottom + 1).Intersects(
tiling_->TilingDataForTesting().TileBounds(0, 3)));
EXPECT_TRUE(tiling_->TileAt(2, 0));
EXPECT_TRUE(tiling_->TileAt(2, 1));
EXPECT_TRUE(tiling_->TileAt(2, 2));
EXPECT_TRUE(tiling_->TileAt(2, 3));
EXPECT_TRUE(tiling_->TileAt(1, 3));
EXPECT_TRUE(tiling_->TileAt(0, 3));
}
TEST_F(PictureLayerTilingIteratorTest, ResizeLiveTileRectOverTileBorders) {
// The tiling has three rows and columns.
Initialize(gfx::Size(100, 100), 1.f, gfx::Size(250, 350));
EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
EXPECT_EQ(4, tiling_->TilingDataForTesting().num_tiles_y());
// The live tiles rect covers the whole tiling.
SetLiveRectAndVerifyTiles(gfx::Rect(250, 350));
// Tiles in the bottom row and right column exist.
EXPECT_TRUE(tiling_->TileAt(2, 0));
EXPECT_TRUE(tiling_->TileAt(2, 1));
EXPECT_TRUE(tiling_->TileAt(2, 2));
EXPECT_TRUE(tiling_->TileAt(2, 3));
EXPECT_TRUE(tiling_->TileAt(1, 3));
EXPECT_TRUE(tiling_->TileAt(0, 3));
// Shrink the live tiles rect to the very edge of the right-most and
// bottom-most tiles. Their border pixels would still be inside the live
// tiles rect, but the tiles should not exist just for that.
int right = tiling_->TilingDataForTesting().TileBounds(2, 3).x();
int bottom = tiling_->TilingDataForTesting().TileBounds(2, 3).y();
SetLiveRectAndVerifyTiles(gfx::Rect(right, bottom));
EXPECT_FALSE(tiling_->TileAt(2, 0));
EXPECT_FALSE(tiling_->TileAt(2, 1));
EXPECT_FALSE(tiling_->TileAt(2, 2));
EXPECT_FALSE(tiling_->TileAt(2, 3));
EXPECT_FALSE(tiling_->TileAt(1, 3));
EXPECT_FALSE(tiling_->TileAt(0, 3));
// Including the bottom row and right column again, should create the tiles.
SetLiveRectAndVerifyTiles(gfx::Rect(right + 1, bottom + 1));
EXPECT_TRUE(tiling_->TileAt(2, 0));
EXPECT_TRUE(tiling_->TileAt(2, 1));
EXPECT_TRUE(tiling_->TileAt(2, 2));
EXPECT_TRUE(tiling_->TileAt(2, 3));
EXPECT_TRUE(tiling_->TileAt(1, 2));
EXPECT_TRUE(tiling_->TileAt(0, 2));
// Shrink the live tiles rect to the very edge of the left-most and
// top-most tiles. Their border pixels would still be inside the live
// tiles rect, but the tiles should not exist just for that.
int left = tiling_->TilingDataForTesting().TileBounds(0, 0).right();
int top = tiling_->TilingDataForTesting().TileBounds(0, 0).bottom();
SetLiveRectAndVerifyTiles(gfx::Rect(left, top, 250 - left, 350 - top));
EXPECT_FALSE(tiling_->TileAt(0, 3));
EXPECT_FALSE(tiling_->TileAt(0, 2));
EXPECT_FALSE(tiling_->TileAt(0, 1));
EXPECT_FALSE(tiling_->TileAt(0, 0));
EXPECT_FALSE(tiling_->TileAt(1, 0));
EXPECT_FALSE(tiling_->TileAt(2, 0));
// Including the top row and left column again, should create the tiles.
SetLiveRectAndVerifyTiles(
gfx::Rect(left - 1, top - 1, 250 - left, 350 - top));
EXPECT_TRUE(tiling_->TileAt(0, 3));
EXPECT_TRUE(tiling_->TileAt(0, 2));
EXPECT_TRUE(tiling_->TileAt(0, 1));
EXPECT_TRUE(tiling_->TileAt(0, 0));
EXPECT_TRUE(tiling_->TileAt(1, 0));
EXPECT_TRUE(tiling_->TileAt(2, 0));
}
TEST_F(PictureLayerTilingIteratorTest, ResizeLiveTileRectOverSameTiles) {
// The tiling has four rows and three columns.
Initialize(gfx::Size(100, 100), 1.f, gfx::Size(250, 350));
EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
EXPECT_EQ(4, tiling_->TilingDataForTesting().num_tiles_y());
// The live tiles rect covers the whole tiling.
SetLiveRectAndVerifyTiles(gfx::Rect(250, 350));
// All tiles exist.
for (int i = 0; i < 3; ++i) {
for (int j = 0; j < 4; ++j)
EXPECT_TRUE(tiling_->TileAt(i, j)) << i << "," << j;
}
// Shrink the live tiles rect, but still cover all the tiles.
SetLiveRectAndVerifyTiles(gfx::Rect(1, 1, 249, 349));
// All tiles still exist.
for (int i = 0; i < 3; ++i) {
for (int j = 0; j < 4; ++j)
EXPECT_TRUE(tiling_->TileAt(i, j)) << i << "," << j;
}
// Grow the live tiles rect, but still cover all the same tiles.
SetLiveRectAndVerifyTiles(gfx::Rect(0, 0, 250, 350));
// All tiles still exist.
for (int i = 0; i < 3; ++i) {
for (int j = 0; j < 4; ++j)
EXPECT_TRUE(tiling_->TileAt(i, j)) << i << "," << j;
}
}
TEST_F(PictureLayerTilingIteratorTest, ResizeOverBorderPixelsDeletesTiles) {
// Verifies that a resize with invalidation for newly exposed pixels will
// deletes tiles that intersect that invalidation.
gfx::Size tile_size(100, 100);
gfx::Size original_layer_size(99, 99);
InitializeActive(tile_size, 1.f, original_layer_size);
SetLiveRectAndVerifyTiles(gfx::Rect(original_layer_size));
// Tiling only has one tile, since its total size is less than one.
EXPECT_TRUE(tiling_->TileAt(0, 0));
// Stop creating tiles so that any invalidations are left as holes.
scoped_refptr<FakeRasterSource> raster_source =
FakeRasterSource::CreatePartiallyFilled(gfx::Size(200, 200), gfx::Rect());
tiling_->SetRasterSourceAndResize(raster_source);
Region invalidation =
SubtractRegions(gfx::Rect(tile_size), gfx::Rect(original_layer_size));
EXPECT_TRUE(tiling_->TileAt(0, 0));
tiling_->Invalidate(invalidation);
EXPECT_FALSE(tiling_->TileAt(0, 0));
// The original tile was the same size after resize, but it would include new
// border pixels.
EXPECT_EQ(gfx::Rect(original_layer_size),
tiling_->TilingDataForTesting().TileBounds(0, 0));
}
TEST_F(PictureLayerTilingIteratorTest, RemoveOutsideLayerKeepsTiles) {
gfx::Size tile_size(100, 100);
gfx::Size layer_size(100, 100);
InitializeActive(tile_size, 1.f, layer_size);
SetLiveRectAndVerifyTiles(gfx::Rect(layer_size));
// In all cases here, the tiling should remain with one tile, since the remove
// region doesn't intersect it.
bool recreate_tiles = false;
// Top
tiling_->RemoveTilesInRegion(gfx::Rect(50, -1, 1, 1), recreate_tiles);
EXPECT_TRUE(tiling_->TileAt(0, 0));
// Bottom
tiling_->RemoveTilesInRegion(gfx::Rect(50, 100, 1, 1), recreate_tiles);
EXPECT_TRUE(tiling_->TileAt(0, 0));
// Left
tiling_->RemoveTilesInRegion(gfx::Rect(-1, 50, 1, 1), recreate_tiles);
EXPECT_TRUE(tiling_->TileAt(0, 0));
// Right
tiling_->RemoveTilesInRegion(gfx::Rect(100, 50, 1, 1), recreate_tiles);
EXPECT_TRUE(tiling_->TileAt(0, 0));
}
TEST_F(PictureLayerTilingIteratorTest, CreateTileJustCoverBorderUp) {
float content_scale = 1.2000000476837158f;
gfx::Size tile_size(512, 512);
gfx::Size layer_size(1440, 4560);
FakePictureLayerTilingClient active_client;
active_client.SetTileSize(tile_size);
scoped_refptr<FakeRasterSource> raster_source =
FakeRasterSource::CreateFilled(layer_size);
std::unique_ptr<TestablePictureLayerTiling> active_tiling =
TestablePictureLayerTiling::Create(ACTIVE_TREE, content_scale,
raster_source, &active_client,
LayerTreeSettings());
active_tiling->set_resolution(HIGH_RESOLUTION);
gfx::Rect invalid_rect(0, 750, 220, 100);
Initialize(tile_size, content_scale, layer_size);
client_.set_twin_tiling(active_tiling.get());
client_.set_invalidation(invalid_rect);
SetLiveRectAndVerifyTiles(gfx::Rect(layer_size));
// When it creates a tile in pending tree, verify that tiles are invalidated
// even if only their border pixels intersect the invalidation rect
EXPECT_TRUE(tiling_->TileAt(0, 1));
gfx::Rect scaled_invalid_rect =
gfx::ScaleToEnclosingRect(invalid_rect, content_scale);
EXPECT_FALSE(scaled_invalid_rect.Intersects(
tiling_->TilingDataForTesting().TileBounds(0, 2)));
EXPECT_TRUE(scaled_invalid_rect.Intersects(
tiling_->TilingDataForTesting().TileBoundsWithBorder(0, 2)));
EXPECT_TRUE(tiling_->TileAt(0, 2));
bool recreate_tiles = false;
active_tiling->RemoveTilesInRegion(invalid_rect, recreate_tiles);
// Even though a tile just touch border area of invalid region, verify that
// RemoveTilesInRegion behaves the same as SetLiveRectAndVerifyTiles with
// respect to the tiles that it invalidates
EXPECT_FALSE(active_tiling->TileAt(0, 1));
EXPECT_FALSE(active_tiling->TileAt(0, 2));
}
TEST_F(PictureLayerTilingIteratorTest, LiveTilesExactlyCoverLiveTileRect) {
Initialize(gfx::Size(100, 100), 1.f, gfx::Size(1099, 801));
SetLiveRectAndVerifyTiles(gfx::Rect(100, 100));
SetLiveRectAndVerifyTiles(gfx::Rect(101, 99));
SetLiveRectAndVerifyTiles(gfx::Rect(1099, 1));
SetLiveRectAndVerifyTiles(gfx::Rect(1, 801));
SetLiveRectAndVerifyTiles(gfx::Rect(1099, 1));
SetLiveRectAndVerifyTiles(gfx::Rect(201, 800));
}
TEST_F(PictureLayerTilingIteratorTest, IteratorCoversLayerBoundsNoScale) {
Initialize(gfx::Size(100, 100), 1.f, gfx::Size(1099, 801));
VerifyTilesExactlyCoverRect(1, gfx::Rect());
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1099, 801));
VerifyTilesExactlyCoverRect(1, gfx::Rect(52, 83, 789, 412));
// With borders, a size of 3x3 = 1 pixel of content.
Initialize(gfx::Size(3, 3), 1.f, gfx::Size(10, 10));
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1, 1));
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 2, 2));
VerifyTilesExactlyCoverRect(1, gfx::Rect(1, 1, 2, 2));
VerifyTilesExactlyCoverRect(1, gfx::Rect(3, 2, 5, 2));
}
TEST_F(PictureLayerTilingIteratorTest, IteratorCoversLayerBoundsTilingScale) {
Initialize(gfx::Size(200, 100), 2.0f, gfx::Size(1005, 2010));
VerifyTilesExactlyCoverRect(1, gfx::Rect());
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1005, 2010));
VerifyTilesExactlyCoverRect(1, gfx::Rect(50, 112, 512, 381));
Initialize(gfx::Size(3, 3), 2.0f, gfx::Size(10, 10));
VerifyTilesExactlyCoverRect(1, gfx::Rect());
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1, 1));
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 2, 2));
VerifyTilesExactlyCoverRect(1, gfx::Rect(1, 1, 2, 2));
VerifyTilesExactlyCoverRect(1, gfx::Rect(3, 2, 5, 2));
Initialize(gfx::Size(100, 200), 0.5f, gfx::Size(1005, 2010));
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1005, 2010));
VerifyTilesExactlyCoverRect(1, gfx::Rect(50, 112, 512, 381));
Initialize(gfx::Size(150, 250), 0.37f, gfx::Size(1005, 2010));
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1005, 2010));
VerifyTilesExactlyCoverRect(1, gfx::Rect(50, 112, 512, 381));
Initialize(gfx::Size(312, 123), 0.01f, gfx::Size(1005, 2010));
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1005, 2010));
VerifyTilesExactlyCoverRect(1, gfx::Rect(50, 112, 512, 381));
}
TEST_F(PictureLayerTilingIteratorTest, IteratorCoversLayerBoundsBothScale) {
Initialize(gfx::Size(50, 50), 4.0f, gfx::Size(800, 600));
VerifyTilesExactlyCoverRect(2.0f, gfx::Rect());
VerifyTilesExactlyCoverRect(2.0f, gfx::Rect(0, 0, 1600, 1200));
VerifyTilesExactlyCoverRect(2.0f, gfx::Rect(512, 365, 253, 182));
float scale = 6.7f;
gfx::Size bounds(800, 600);
gfx::Rect full_rect(gfx::ScaleToCeiledSize(bounds, scale));
Initialize(gfx::Size(256, 512), 5.2f, bounds);
VerifyTilesExactlyCoverRect(scale, full_rect);
VerifyTilesExactlyCoverRect(scale, gfx::Rect(2014, 1579, 867, 1033));
}
TEST_F(PictureLayerTilingIteratorTest, IteratorEmptyRect) {
Initialize(gfx::Size(100, 100), 1.0f, gfx::Size(800, 600));
gfx::Rect empty;
PictureLayerTiling::CoverageIterator iter(tiling_.get(), 1.0f, empty);
EXPECT_FALSE(iter);
}
TEST_F(PictureLayerTilingIteratorTest, NonIntersectingRect) {
Initialize(gfx::Size(100, 100), 1.0f, gfx::Size(800, 600));
gfx::Rect non_intersecting(1000, 1000, 50, 50);
PictureLayerTiling::CoverageIterator iter(tiling_.get(), 1, non_intersecting);
EXPECT_FALSE(iter);
}
TEST_F(PictureLayerTilingIteratorTest, LayerEdgeTextureCoordinates) {
Initialize(gfx::Size(300, 300), 1.0f, gfx::Size(256, 256));
// All of these sizes are 256x256, scaled and ceiled.
VerifyTilesExactlyCoverRect(1.0f, gfx::Rect(0, 0, 256, 256));
VerifyTilesExactlyCoverRect(0.8f, gfx::Rect(0, 0, 205, 205));
VerifyTilesExactlyCoverRect(1.2f, gfx::Rect(0, 0, 308, 308));
}
TEST_F(PictureLayerTilingIteratorTest, NonContainedDestRect) {
Initialize(gfx::Size(100, 100), 1.0f, gfx::Size(400, 400));
// Too large in all dimensions
VerifyTilesCoverNonContainedRect(1.0f, gfx::Rect(-1000, -1000, 2000, 2000));
VerifyTilesCoverNonContainedRect(1.5f, gfx::Rect(-1000, -1000, 2000, 2000));
VerifyTilesCoverNonContainedRect(0.5f, gfx::Rect(-1000, -1000, 2000, 2000));
// Partially covering content, but too large
VerifyTilesCoverNonContainedRect(1.0f, gfx::Rect(-1000, 100, 2000, 100));
VerifyTilesCoverNonContainedRect(1.5f, gfx::Rect(-1000, 100, 2000, 100));
VerifyTilesCoverNonContainedRect(0.5f, gfx::Rect(-1000, 100, 2000, 100));
}
static void TileExists(bool exists, Tile* tile,
const gfx::Rect& geometry_rect) {
EXPECT_EQ(exists, tile != NULL) << geometry_rect.ToString();
}
TEST_F(PictureLayerTilingIteratorTest, TilesExist) {
gfx::Size layer_bounds(1099, 801);
Initialize(gfx::Size(100, 100), 1.f, layer_bounds);
VerifyTilesExactlyCoverRect(1.f, gfx::Rect(layer_bounds));
VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
tiling_->ComputeTilePriorityRects(
gfx::Rect(layer_bounds), // visible rect
gfx::Rect(layer_bounds), // skewport
gfx::Rect(layer_bounds), // soon border rect
gfx::Rect(layer_bounds), // eventually rect
1.f, // current contents scale
Occlusion());
VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true));
// Make the viewport rect empty. All tiles are killed and become zombies.
tiling_->ComputeTilePriorityRects(gfx::Rect(), gfx::Rect(), gfx::Rect(),
gfx::Rect(), 1.f, Occlusion());
VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
}
TEST_F(PictureLayerTilingIteratorTest, TilesExistGiantViewport) {
gfx::Size layer_bounds(1099, 801);
Initialize(gfx::Size(100, 100), 1.f, layer_bounds);
VerifyTilesExactlyCoverRect(1.f, gfx::Rect(layer_bounds));
VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
gfx::Rect giant_rect(-10000000, -10000000, 1000000000, 1000000000);
tiling_->ComputeTilePriorityRects(
gfx::Rect(layer_bounds), // visible rect
gfx::Rect(layer_bounds), // skewport
gfx::Rect(layer_bounds), // soon border rect
gfx::Rect(layer_bounds), // eventually rect
1.f, // current contents scale
Occlusion());
VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true));
// If the visible content rect is huge, we should still have live tiles.
tiling_->ComputeTilePriorityRects(giant_rect, giant_rect, giant_rect,
giant_rect, 1.f, Occlusion());
VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true));
}
TEST_F(PictureLayerTilingIteratorTest, TilesExistOutsideViewport) {
gfx::Size layer_bounds(1099, 801);
Initialize(gfx::Size(100, 100), 1.f, layer_bounds);
VerifyTilesExactlyCoverRect(1.f, gfx::Rect(layer_bounds));
VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
// This rect does not intersect with the layer, as the layer is outside the
// viewport.
gfx::Rect viewport_rect(1100, 0, 1000, 1000);
EXPECT_FALSE(viewport_rect.Intersects(gfx::Rect(layer_bounds)));
LayerTreeSettings settings;
gfx::Rect eventually_rect = viewport_rect;
eventually_rect.Inset(-settings.tiling_interest_area_padding,
-settings.tiling_interest_area_padding);
tiling_->ComputeTilePriorityRects(viewport_rect, viewport_rect, viewport_rect,
eventually_rect, 1.f, Occlusion());
VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true));
}
static void TilesIntersectingRectExist(const gfx::Rect& rect,
bool intersect_exists,
Tile* tile,
const gfx::Rect& geometry_rect) {
bool intersects = rect.Intersects(geometry_rect);
bool expected_exists = intersect_exists ? intersects : !intersects;
EXPECT_EQ(expected_exists, tile != NULL)
<< "Rects intersecting " << rect.ToString() << " should exist. "
<< "Current tile rect is " << geometry_rect.ToString();
}
TEST_F(PictureLayerTilingIteratorTest,
TilesExistLargeViewportAndLayerWithSmallVisibleArea) {
gfx::Size layer_bounds(10000, 10000);
client_.SetTileSize(gfx::Size(100, 100));
LayerTreeSettings settings;
settings.tiling_interest_area_padding = 1;
scoped_refptr<FakeRasterSource> raster_source =
FakeRasterSource::CreateFilled(layer_bounds);
tiling_ = TestablePictureLayerTiling::Create(PENDING_TREE, 1.f, raster_source,
&client_, settings);
tiling_->set_resolution(HIGH_RESOLUTION);
VerifyTilesExactlyCoverRect(1.f, gfx::Rect(layer_bounds));
VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
gfx::Rect visible_rect(8000, 8000, 50, 50);
tiling_->ComputeTilePriorityRects(visible_rect, // visible rect
visible_rect, // skewport
visible_rect, // soon border rect
visible_rect, // eventually rect
1.f, // current contents scale
Occlusion());
VerifyTiles(1.f,
gfx::Rect(layer_bounds),
base::Bind(&TilesIntersectingRectExist, visible_rect, true));
}
TEST(ComputeTilePriorityRectsTest, VisibleTiles) {
// The TilePriority of visible tiles should have zero distance_to_visible
// and time_to_visible.
FakePictureLayerTilingClient client;
gfx::Size device_viewport(800, 600);
gfx::Size last_layer_bounds(200, 200);
gfx::Size current_layer_bounds(200, 200);
float current_layer_contents_scale = 1.f;
gfx::Transform current_screen_transform;
gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
current_screen_transform, device_viewport);
client.SetTileSize(gfx::Size(100, 100));
scoped_refptr<FakeRasterSource> raster_source =
FakeRasterSource::CreateFilled(current_layer_bounds);
std::unique_ptr<TestablePictureLayerTiling> tiling =
TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, raster_source,
&client, LayerTreeSettings());
tiling->set_resolution(HIGH_RESOLUTION);
LayerTreeSettings settings;
gfx::Rect eventually_rect = viewport_in_layer_space;
eventually_rect.Inset(-settings.tiling_interest_area_padding,
-settings.tiling_interest_area_padding);
tiling->ComputeTilePriorityRects(
viewport_in_layer_space, viewport_in_layer_space, viewport_in_layer_space,
eventually_rect, current_layer_contents_scale, Occlusion());
auto prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
ASSERT_TRUE(tiling->TileAt(0, 0));
ASSERT_TRUE(tiling->TileAt(0, 1));
ASSERT_TRUE(tiling->TileAt(1, 0));
ASSERT_TRUE(tiling->TileAt(1, 1));
TilePriority priority = prioritized_tiles[tiling->TileAt(0, 0)].priority();
EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
priority = prioritized_tiles[tiling->TileAt(0, 1)].priority();
EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
priority = prioritized_tiles[tiling->TileAt(1, 0)].priority();
EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
priority = prioritized_tiles[tiling->TileAt(1, 1)].priority();
EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
}
TEST(ComputeTilePriorityRectsTest, OffscreenTiles) {
// The TilePriority of offscreen tiles (without movement) should have nonzero
// distance_to_visible and infinite time_to_visible.
FakePictureLayerTilingClient client;
gfx::Size device_viewport(800, 600);
gfx::Size last_layer_bounds(200, 200);
gfx::Size current_layer_bounds(200, 200);
float current_layer_contents_scale = 1.f;
gfx::Transform last_screen_transform;
gfx::Transform current_screen_transform;
current_screen_transform.Translate(850, 0);
last_screen_transform = current_screen_transform;
gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
current_screen_transform, device_viewport);
client.SetTileSize(gfx::Size(100, 100));
scoped_refptr<FakeRasterSource> raster_source =
FakeRasterSource::CreateFilled(current_layer_bounds);
std::unique_ptr<TestablePictureLayerTiling> tiling =
TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, raster_source,
&client, LayerTreeSettings());
tiling->set_resolution(HIGH_RESOLUTION);
LayerTreeSettings settings;
gfx::Rect eventually_rect = viewport_in_layer_space;
eventually_rect.Inset(-settings.tiling_interest_area_padding,
-settings.tiling_interest_area_padding);
tiling->ComputeTilePriorityRects(
viewport_in_layer_space, viewport_in_layer_space, viewport_in_layer_space,
eventually_rect, current_layer_contents_scale, Occlusion());
auto prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
ASSERT_TRUE(tiling->TileAt(0, 0));
ASSERT_TRUE(tiling->TileAt(0, 1));
ASSERT_TRUE(tiling->TileAt(1, 0));
ASSERT_TRUE(tiling->TileAt(1, 1));
TilePriority priority = prioritized_tiles[tiling->TileAt(0, 0)].priority();
EXPECT_GT(priority.distance_to_visible, 0.f);
EXPECT_NE(TilePriority::NOW, priority.priority_bin);
priority = prioritized_tiles[tiling->TileAt(0, 1)].priority();
EXPECT_GT(priority.distance_to_visible, 0.f);
EXPECT_NE(TilePriority::NOW, priority.priority_bin);
priority = prioritized_tiles[tiling->TileAt(1, 0)].priority();
EXPECT_GT(priority.distance_to_visible, 0.f);
EXPECT_NE(TilePriority::NOW, priority.priority_bin);
priority = prioritized_tiles[tiling->TileAt(1, 1)].priority();
EXPECT_GT(priority.distance_to_visible, 0.f);
EXPECT_NE(TilePriority::NOW, priority.priority_bin);
// Furthermore, in this scenario tiles on the right hand side should have a
// larger distance to visible.
TilePriority left = prioritized_tiles[tiling->TileAt(0, 0)].priority();
TilePriority right = prioritized_tiles[tiling->TileAt(1, 0)].priority();
EXPECT_GT(right.distance_to_visible, left.distance_to_visible);
left = prioritized_tiles[tiling->TileAt(0, 1)].priority();
right = prioritized_tiles[tiling->TileAt(1, 1)].priority();
EXPECT_GT(right.distance_to_visible, left.distance_to_visible);
}
TEST(ComputeTilePriorityRectsTest, PartiallyOffscreenLayer) {
// Sanity check that a layer with some tiles visible and others offscreen has
// correct TilePriorities for each tile.
FakePictureLayerTilingClient client;
gfx::Size device_viewport(800, 600);
gfx::Size last_layer_bounds(200, 200);
gfx::Size current_layer_bounds(200, 200);
float current_layer_contents_scale = 1.f;
gfx::Transform last_screen_transform;
gfx::Transform current_screen_transform;
current_screen_transform.Translate(705, 505);
last_screen_transform = current_screen_transform;
gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
current_screen_transform, device_viewport);
client.SetTileSize(gfx::Size(100, 100));
scoped_refptr<FakeRasterSource> raster_source =
FakeRasterSource::CreateFilled(current_layer_bounds);
std::unique_ptr<TestablePictureLayerTiling> tiling =
TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, raster_source,
&client, LayerTreeSettings());
tiling->set_resolution(HIGH_RESOLUTION);
LayerTreeSettings settings;
gfx::Rect eventually_rect = viewport_in_layer_space;
eventually_rect.Inset(-settings.tiling_interest_area_padding,
-settings.tiling_interest_area_padding);
tiling->ComputeTilePriorityRects(
viewport_in_layer_space, viewport_in_layer_space, viewport_in_layer_space,
eventually_rect, current_layer_contents_scale, Occlusion());
auto prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
ASSERT_TRUE(tiling->TileAt(0, 0));
ASSERT_TRUE(tiling->TileAt(0, 1));
ASSERT_TRUE(tiling->TileAt(1, 0));
ASSERT_TRUE(tiling->TileAt(1, 1));
TilePriority priority = prioritized_tiles[tiling->TileAt(0, 0)].priority();
EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
priority = prioritized_tiles[tiling->TileAt(0, 1)].priority();
EXPECT_GT(priority.distance_to_visible, 0.f);
EXPECT_NE(TilePriority::NOW, priority.priority_bin);
priority = prioritized_tiles[tiling->TileAt(1, 0)].priority();
EXPECT_GT(priority.distance_to_visible, 0.f);
EXPECT_NE(TilePriority::NOW, priority.priority_bin);
priority = prioritized_tiles[tiling->TileAt(1, 1)].priority();
EXPECT_GT(priority.distance_to_visible, 0.f);
EXPECT_NE(TilePriority::NOW, priority.priority_bin);
}
TEST(PictureLayerTilingTest, RecycledTilesClearedOnReset) {
FakePictureLayerTilingClient active_client;
active_client.SetTileSize(gfx::Size(100, 100));
scoped_refptr<FakeRasterSource> raster_source =
FakeRasterSource::CreateFilled(gfx::Size(100, 100));
std::unique_ptr<TestablePictureLayerTiling> active_tiling =
TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, raster_source,
&active_client, LayerTreeSettings());
active_tiling->set_resolution(HIGH_RESOLUTION);
// Create all tiles on this tiling.
gfx::Rect visible_rect = gfx::Rect(0, 0, 100, 100);
active_tiling->ComputeTilePriorityRects(
visible_rect, visible_rect, visible_rect, visible_rect, 1.f, Occlusion());
FakePictureLayerTilingClient recycle_client;
recycle_client.SetTileSize(gfx::Size(100, 100));
recycle_client.set_twin_tiling(active_tiling.get());
LayerTreeSettings settings;
raster_source = FakeRasterSource::CreateFilled(gfx::Size(100, 100));
std::unique_ptr<TestablePictureLayerTiling> recycle_tiling =
TestablePictureLayerTiling::Create(PENDING_TREE, 1.0f, raster_source,
&recycle_client, settings);
recycle_tiling->set_resolution(HIGH_RESOLUTION);
// Create all tiles on the recycle tiling.
recycle_tiling->ComputeTilePriorityRects(visible_rect, visible_rect,
visible_rect, visible_rect, 1.0f,
Occlusion());
// Set the second tiling as recycled.
active_client.set_twin_tiling(NULL);
recycle_client.set_twin_tiling(NULL);
EXPECT_TRUE(active_tiling->TileAt(0, 0));
EXPECT_FALSE(recycle_tiling->TileAt(0, 0));
// Reset the active tiling. The recycle tiles should be released too.
active_tiling->Reset();
EXPECT_FALSE(active_tiling->TileAt(0, 0));
EXPECT_FALSE(recycle_tiling->TileAt(0, 0));
}
TEST_F(PictureLayerTilingIteratorTest, ResizeTilesAndUpdateToCurrent) {
// The tiling has four rows and three columns.
Initialize(gfx::Size(150, 100), 1.f, gfx::Size(250, 150));
tiling_->CreateAllTilesForTesting();
EXPECT_EQ(150, tiling_->TilingDataForTesting().max_texture_size().width());
EXPECT_EQ(100, tiling_->TilingDataForTesting().max_texture_size().height());
EXPECT_EQ(4u, tiling_->AllTilesForTesting().size());
client_.SetTileSize(gfx::Size(250, 200));
// Tile size in the tiling should still be 150x100.
EXPECT_EQ(150, tiling_->TilingDataForTesting().max_texture_size().width());
EXPECT_EQ(100, tiling_->TilingDataForTesting().max_texture_size().height());
// The layer's size isn't changed, but the tile size was.
scoped_refptr<FakeRasterSource> raster_source =
FakeRasterSource::CreateFilled(gfx::Size(250, 150));
tiling_->SetRasterSourceAndResize(raster_source);
// Tile size in the tiling should be resized to 250x200.
EXPECT_EQ(250, tiling_->TilingDataForTesting().max_texture_size().width());
EXPECT_EQ(200, tiling_->TilingDataForTesting().max_texture_size().height());
EXPECT_EQ(0u, tiling_->AllTilesForTesting().size());
}
// This test runs into floating point issues because of big numbers.
TEST_F(PictureLayerTilingIteratorTest, GiantRect) {
gfx::Size tile_size(256, 256);
gfx::Size layer_size(33554432, 33554432);
float contents_scale = 1.f;
client_.SetTileSize(tile_size);
scoped_refptr<FakeRasterSource> raster_source =
FakeRasterSource::CreateEmpty(layer_size);
tiling_ = TestablePictureLayerTiling::Create(PENDING_TREE, contents_scale,
raster_source, &client_,
LayerTreeSettings());
gfx::Rect content_rect(25554432, 25554432, 950, 860);
VerifyTilesExactlyCoverRect(contents_scale, content_rect);
}
} // namespace
} // namespace cc