| // 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.h" |
| |
| #include <limits> |
| #include <set> |
| |
| #include "cc/base/math_util.h" |
| #include "cc/resources/picture_layer_tiling_set.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/test_context_provider.h" |
| #include "cc/test/test_shared_bitmap_manager.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "ui/gfx/rect_conversions.h" |
| #include "ui/gfx/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(); |
| |
| gfx::RectF viewport_in_layer_space = MathUtil::ProjectClippedRect( |
| inverse, gfx::RectF(gfx::Point(0, 0), device_viewport)); |
| return ToEnclosingRect(viewport_in_layer_space); |
| } |
| |
| static void UpdateAllTilePriorities(PictureLayerTilingSet* set, |
| WhichTree tree, |
| const gfx::Rect& visible_layer_rect, |
| float layer_contents_scale, |
| double current_frame_time_in_seconds) { |
| for (size_t i = 0; i < set->num_tilings(); ++i) { |
| set->tiling_at(i)->UpdateTilePriorities(tree, |
| visible_layer_rect, |
| layer_contents_scale, |
| current_frame_time_in_seconds); |
| } |
| } |
| |
| class TestablePictureLayerTiling : public PictureLayerTiling { |
| public: |
| using PictureLayerTiling::SetLiveTilesRect; |
| using PictureLayerTiling::TileAt; |
| |
| static scoped_ptr<TestablePictureLayerTiling> Create( |
| float contents_scale, |
| const gfx::Size& layer_bounds, |
| PictureLayerTilingClient* client) { |
| return make_scoped_ptr(new TestablePictureLayerTiling( |
| contents_scale, |
| layer_bounds, |
| client)); |
| } |
| |
| using PictureLayerTiling::ComputeSkewport; |
| |
| protected: |
| TestablePictureLayerTiling(float contents_scale, |
| const gfx::Size& layer_bounds, |
| PictureLayerTilingClient* client) |
| : PictureLayerTiling(contents_scale, layer_bounds, client) { } |
| }; |
| |
| class PictureLayerTilingIteratorTest : public testing::Test { |
| public: |
| PictureLayerTilingIteratorTest() {} |
| virtual ~PictureLayerTilingIteratorTest() {} |
| |
| void Initialize(const gfx::Size& tile_size, |
| float contents_scale, |
| const gfx::Size& layer_bounds) { |
| client_.SetTileSize(tile_size); |
| tiling_ = TestablePictureLayerTiling::Create(contents_scale, |
| layer_bounds, |
| &client_); |
| } |
| |
| 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()); |
| |
| EXPECT_EQ(iter.texture_size(), client_.TileSize()); |
| } |
| |
| // 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( |
| tiling_->TilingRect(), 1.f / dest_to_contents_scale); |
| clamped_rect.Intersect(dest_rect); |
| VerifyTilesExactlyCoverRect(rect_scale, dest_rect, clamped_rect); |
| } |
| |
| void set_max_tiles_for_interest_area(size_t area) { |
| client_.set_max_tiles_for_interest_area(area); |
| } |
| |
| protected: |
| FakePictureLayerTilingClient client_; |
| scoped_ptr<TestablePictureLayerTiling> tiling_; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(PictureLayerTilingIteratorTest); |
| }; |
| |
| TEST_F(PictureLayerTilingIteratorTest, ResizeDeletesTiles) { |
| // Verifies that a resize deletes tiles that used to be on the edge. |
| gfx::Size tile_size(100, 100); |
| gfx::Size original_layer_size(10, 10); |
| Initialize(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. |
| client_.set_allow_create_tile(false); |
| |
| tiling_->SetLayerBounds(gfx::Size(200, 200)); |
| EXPECT_FALSE(tiling_->TileAt(0, 0)); |
| } |
| |
| TEST_F(PictureLayerTilingIteratorTest, LiveTilesExactlyCoverLiveTileRect) { |
| Initialize(gfx::Size(100, 100), 1, 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, 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, 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::ToCeiledSize(gfx::ScaleSize(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)); |
| } |
| |
| TEST(PictureLayerTilingTest, SkewportLimits) { |
| FakePictureLayerTilingClient client; |
| client.set_skewport_extrapolation_limit_in_content_pixels(75); |
| scoped_ptr<TestablePictureLayerTiling> tiling; |
| |
| gfx::Rect viewport(0, 0, 100, 100); |
| gfx::Size layer_bounds(200, 200); |
| |
| client.SetTileSize(gfx::Size(100, 100)); |
| tiling = TestablePictureLayerTiling::Create(1.0f, layer_bounds, &client); |
| |
| tiling->UpdateTilePriorities(ACTIVE_TREE, viewport, 1.f, 1.0); |
| |
| // Move viewport down 50 pixels in 0.5 seconds. |
| gfx::Rect down_skewport = |
| tiling->ComputeSkewport(1.5, gfx::Rect(0, 50, 100, 100)); |
| |
| EXPECT_EQ(0, down_skewport.x()); |
| EXPECT_EQ(50, down_skewport.y()); |
| EXPECT_EQ(100, down_skewport.width()); |
| EXPECT_EQ(175, down_skewport.height()); |
| EXPECT_TRUE(down_skewport.Contains(gfx::Rect(0, 50, 100, 100))); |
| |
| // Move viewport down 50 and right 10 pixels. |
| gfx::Rect down_right_skewport = |
| tiling->ComputeSkewport(1.5, gfx::Rect(10, 50, 100, 100)); |
| |
| EXPECT_EQ(10, down_right_skewport.x()); |
| EXPECT_EQ(50, down_right_skewport.y()); |
| EXPECT_EQ(120, down_right_skewport.width()); |
| EXPECT_EQ(175, down_right_skewport.height()); |
| EXPECT_TRUE(down_right_skewport.Contains(gfx::Rect(10, 50, 100, 100))); |
| |
| // Move viewport left. |
| gfx::Rect left_skewport = |
| tiling->ComputeSkewport(1.5, gfx::Rect(-50, 0, 100, 100)); |
| |
| EXPECT_EQ(-125, left_skewport.x()); |
| EXPECT_EQ(0, left_skewport.y()); |
| EXPECT_EQ(175, left_skewport.width()); |
| EXPECT_EQ(100, left_skewport.height()); |
| EXPECT_TRUE(left_skewport.Contains(gfx::Rect(-50, 0, 100, 100))); |
| |
| // Expand viewport. |
| gfx::Rect expand_skewport = |
| tiling->ComputeSkewport(1.5, gfx::Rect(-50, -50, 200, 200)); |
| |
| // x and y moved by -75 (-50 - 75 = -125). |
| // right side and bottom side moved by 75 [(350 - 125) - (200 - 50) = 75]. |
| EXPECT_EQ(-125, expand_skewport.x()); |
| EXPECT_EQ(-125, expand_skewport.y()); |
| EXPECT_EQ(350, expand_skewport.width()); |
| EXPECT_EQ(350, expand_skewport.height()); |
| EXPECT_TRUE(expand_skewport.Contains(gfx::Rect(-50, -50, 200, 200))); |
| |
| // Expand the viewport past the limit. |
| gfx::Rect big_expand_skewport = |
| tiling->ComputeSkewport(1.5, gfx::Rect(-500, -500, 1500, 1500)); |
| |
| EXPECT_EQ(-575, big_expand_skewport.x()); |
| EXPECT_EQ(-575, big_expand_skewport.y()); |
| EXPECT_EQ(1650, big_expand_skewport.width()); |
| EXPECT_EQ(1650, big_expand_skewport.height()); |
| EXPECT_TRUE(big_expand_skewport.Contains(gfx::Rect(-500, -500, 1500, 1500))); |
| } |
| |
| TEST(PictureLayerTilingTest, ComputeSkewport) { |
| FakePictureLayerTilingClient client; |
| scoped_ptr<TestablePictureLayerTiling> tiling; |
| |
| gfx::Rect viewport(0, 0, 100, 100); |
| gfx::Size layer_bounds(200, 200); |
| |
| client.SetTileSize(gfx::Size(100, 100)); |
| tiling = TestablePictureLayerTiling::Create(1.0f, layer_bounds, &client); |
| |
| tiling->UpdateTilePriorities(ACTIVE_TREE, viewport, 1.f, 1.0); |
| |
| // Move viewport down 50 pixels in 0.5 seconds. |
| gfx::Rect down_skewport = |
| tiling->ComputeSkewport(1.5, gfx::Rect(0, 50, 100, 100)); |
| |
| EXPECT_EQ(0, down_skewport.x()); |
| EXPECT_EQ(50, down_skewport.y()); |
| EXPECT_EQ(100, down_skewport.width()); |
| EXPECT_EQ(200, down_skewport.height()); |
| |
| // Shrink viewport. |
| gfx::Rect shrink_skewport = |
| tiling->ComputeSkewport(1.5, gfx::Rect(25, 25, 50, 50)); |
| |
| EXPECT_EQ(25, shrink_skewport.x()); |
| EXPECT_EQ(25, shrink_skewport.y()); |
| EXPECT_EQ(50, shrink_skewport.width()); |
| EXPECT_EQ(50, shrink_skewport.height()); |
| |
| // Move viewport down 50 and right 10 pixels. |
| gfx::Rect down_right_skewport = |
| tiling->ComputeSkewport(1.5, gfx::Rect(10, 50, 100, 100)); |
| |
| EXPECT_EQ(10, down_right_skewport.x()); |
| EXPECT_EQ(50, down_right_skewport.y()); |
| EXPECT_EQ(120, down_right_skewport.width()); |
| EXPECT_EQ(200, down_right_skewport.height()); |
| |
| // Move viewport left. |
| gfx::Rect left_skewport = |
| tiling->ComputeSkewport(1.5, gfx::Rect(-20, 0, 100, 100)); |
| |
| EXPECT_EQ(-60, left_skewport.x()); |
| EXPECT_EQ(0, left_skewport.y()); |
| EXPECT_EQ(140, left_skewport.width()); |
| EXPECT_EQ(100, left_skewport.height()); |
| |
| // Expand viewport in 0.2 seconds. |
| gfx::Rect expanded_skewport = |
| tiling->ComputeSkewport(1.2, gfx::Rect(-5, -5, 110, 110)); |
| |
| EXPECT_EQ(-30, expanded_skewport.x()); |
| EXPECT_EQ(-30, expanded_skewport.y()); |
| EXPECT_EQ(160, expanded_skewport.width()); |
| EXPECT_EQ(160, expanded_skewport.height()); |
| } |
| |
| TEST(PictureLayerTilingTest, ViewportDistanceWithScale) { |
| FakePictureLayerTilingClient client; |
| scoped_ptr<TestablePictureLayerTiling> tiling; |
| |
| gfx::Rect viewport(0, 0, 100, 100); |
| gfx::Size layer_bounds(1500, 1500); |
| |
| client.SetTileSize(gfx::Size(10, 10)); |
| |
| // Tiling at 0.25 scale: this should create 47x47 tiles of size 10x10. |
| // The reason is that each tile has a one pixel border, so tile at (1, 2) |
| // for instance begins at (8, 16) pixels. So tile at (46, 46) will begin at |
| // (368, 368) and extend to the end of 1500 * 0.25 = 375 edge of the |
| // tiling. |
| tiling = TestablePictureLayerTiling::Create(0.25f, layer_bounds, &client); |
| gfx::Rect viewport_in_content_space = |
| gfx::ToEnclosedRect(gfx::ScaleRect(viewport, 0.25f)); |
| |
| tiling->UpdateTilePriorities(ACTIVE_TREE, viewport, 1.f, 1.0); |
| |
| gfx::Rect soon_rect = viewport; |
| soon_rect.Inset(-312.f, -312.f, -312.f, -312.f); |
| gfx::Rect soon_rect_in_content_space = |
| gfx::ToEnclosedRect(gfx::ScaleRect(soon_rect, 0.25f)); |
| |
| // Sanity checks. |
| for (int i = 0; i < 47; ++i) { |
| for (int j = 0; j < 47; ++j) { |
| EXPECT_TRUE(tiling->TileAt(i, j)) << "i: " << i << " j: " << j; |
| } |
| } |
| for (int i = 0; i < 47; ++i) { |
| EXPECT_FALSE(tiling->TileAt(i, 47)) << "i: " << i; |
| EXPECT_FALSE(tiling->TileAt(47, i)) << "i: " << i; |
| } |
| |
| // No movement in the viewport implies that tiles will either be NOW |
| // or EVENTUALLY, with the exception of tiles that are between 0 and 312 |
| // pixels away from the viewport, which will be in the SOON bin. |
| bool have_now = false; |
| bool have_eventually = false; |
| bool have_soon = false; |
| for (int i = 0; i < 47; ++i) { |
| for (int j = 0; j < 47; ++j) { |
| Tile* tile = tiling->TileAt(i, j); |
| TilePriority priority = tile->priority(ACTIVE_TREE); |
| |
| if (viewport_in_content_space.Intersects(tile->content_rect())) { |
| EXPECT_EQ(TilePriority::NOW, priority.priority_bin); |
| EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible); |
| have_now = true; |
| } else if (soon_rect_in_content_space.Intersects(tile->content_rect())) { |
| EXPECT_EQ(TilePriority::SOON, priority.priority_bin); |
| have_soon = true; |
| } else { |
| EXPECT_EQ(TilePriority::EVENTUALLY, priority.priority_bin); |
| EXPECT_GT(priority.distance_to_visible, 0.f); |
| have_eventually = true; |
| } |
| } |
| } |
| |
| EXPECT_TRUE(have_now); |
| EXPECT_TRUE(have_soon); |
| EXPECT_TRUE(have_eventually); |
| |
| // Spot check some distances. |
| // Tile at 5, 1 should begin at 41x9 in content space (without borders), |
| // so the distance to a viewport that ends at 25x25 in content space |
| // should be 17 (41 - 25 + 1). In layer space, then that should be |
| // 17 / 0.25 = 68 pixels. |
| |
| // We can verify that the content rect (with borders) is one pixel off |
| // 41,9 8x8 on all sides. |
| EXPECT_EQ(tiling->TileAt(5, 1)->content_rect().ToString(), "40,8 10x10"); |
| |
| TilePriority priority = tiling->TileAt(5, 1)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(68.f, priority.distance_to_visible); |
| |
| priority = tiling->TileAt(2, 5)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(68.f, priority.distance_to_visible); |
| |
| priority = tiling->TileAt(3, 4)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(40.f, priority.distance_to_visible); |
| |
| // Move the viewport down 40 pixels. |
| viewport = gfx::Rect(0, 40, 100, 100); |
| viewport_in_content_space = |
| gfx::ToEnclosedRect(gfx::ScaleRect(viewport, 0.25f)); |
| gfx::Rect skewport = tiling->ComputeSkewport(2.0, viewport_in_content_space); |
| |
| soon_rect = viewport; |
| soon_rect.Inset(-312.f, -312.f, -312.f, -312.f); |
| soon_rect_in_content_space = |
| gfx::ToEnclosedRect(gfx::ScaleRect(soon_rect, 0.25f)); |
| |
| EXPECT_EQ(0, skewport.x()); |
| EXPECT_EQ(10, skewport.y()); |
| EXPECT_EQ(25, skewport.width()); |
| EXPECT_EQ(35, skewport.height()); |
| |
| tiling->UpdateTilePriorities(ACTIVE_TREE, viewport, 1.f, 2.0); |
| |
| have_now = false; |
| have_eventually = false; |
| have_soon = false; |
| |
| // Viewport moved, so we expect to find some NOW tiles, some SOON tiles and |
| // some EVENTUALLY tiles. |
| for (int i = 0; i < 47; ++i) { |
| for (int j = 0; j < 47; ++j) { |
| Tile* tile = tiling->TileAt(i, j); |
| TilePriority priority = tile->priority(ACTIVE_TREE); |
| |
| if (viewport_in_content_space.Intersects(tile->content_rect())) { |
| EXPECT_EQ(TilePriority::NOW, priority.priority_bin) << "i: " << i |
| << " j: " << j; |
| EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible) << "i: " << i |
| << " j: " << j; |
| have_now = true; |
| } else if (skewport.Intersects(tile->content_rect()) || |
| soon_rect_in_content_space.Intersects(tile->content_rect())) { |
| EXPECT_EQ(TilePriority::SOON, priority.priority_bin) << "i: " << i |
| << " j: " << j; |
| EXPECT_GT(priority.distance_to_visible, 0.f) << "i: " << i |
| << " j: " << j; |
| have_soon = true; |
| } else { |
| EXPECT_EQ(TilePriority::EVENTUALLY, priority.priority_bin) |
| << "i: " << i << " j: " << j; |
| EXPECT_GT(priority.distance_to_visible, 0.f) << "i: " << i |
| << " j: " << j; |
| have_eventually = true; |
| } |
| } |
| } |
| |
| EXPECT_TRUE(have_now); |
| EXPECT_TRUE(have_soon); |
| EXPECT_TRUE(have_eventually); |
| |
| priority = tiling->TileAt(5, 1)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(68.f, priority.distance_to_visible); |
| |
| priority = tiling->TileAt(2, 5)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(28.f, priority.distance_to_visible); |
| |
| priority = tiling->TileAt(3, 4)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible); |
| |
| // Change the underlying layer scale. |
| tiling->UpdateTilePriorities(ACTIVE_TREE, viewport, 2.0f, 3.0); |
| |
| priority = tiling->TileAt(5, 1)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(34.f, priority.distance_to_visible); |
| |
| priority = tiling->TileAt(2, 5)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(14.f, priority.distance_to_visible); |
| |
| priority = tiling->TileAt(3, 4)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectEqual) { |
| gfx::Rect in(40, 50, 100, 200); |
| gfx::Rect bounds(-1000, -1000, 10000, 10000); |
| int64 target_area = 100 * 200; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_EQ(in.ToString(), out.ToString()); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectSmaller) { |
| gfx::Rect in(40, 50, 100, 200); |
| gfx::Rect bounds(-1000, -1000, 10000, 10000); |
| int64 target_area = 100 * 100; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y()); |
| EXPECT_EQ(out.right() - in.right(), in.x() - out.x()); |
| EXPECT_EQ(out.width() - in.width(), out.height() - in.height()); |
| EXPECT_NEAR(100 * 100, out.width() * out.height(), 50); |
| EXPECT_TRUE(bounds.Contains(out)); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectUnbounded) { |
| gfx::Rect in(40, 50, 100, 200); |
| gfx::Rect bounds(-1000, -1000, 10000, 10000); |
| int64 target_area = 200 * 200; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y()); |
| EXPECT_EQ(out.right() - in.right(), in.x() - out.x()); |
| EXPECT_EQ(out.width() - in.width(), out.height() - in.height()); |
| EXPECT_NEAR(200 * 200, out.width() * out.height(), 100); |
| EXPECT_TRUE(bounds.Contains(out)); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectBoundedSmaller) { |
| gfx::Rect in(40, 50, 100, 200); |
| gfx::Rect bounds(50, 60, 40, 30); |
| int64 target_area = 200 * 200; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_EQ(bounds.ToString(), out.ToString()); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectBoundedEqual) { |
| gfx::Rect in(40, 50, 100, 200); |
| gfx::Rect bounds = in; |
| int64 target_area = 200 * 200; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_EQ(bounds.ToString(), out.ToString()); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectBoundedSmallerStretchVertical) { |
| gfx::Rect in(40, 50, 100, 200); |
| gfx::Rect bounds(45, 0, 90, 300); |
| int64 target_area = 200 * 200; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_EQ(bounds.ToString(), out.ToString()); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectBoundedEqualStretchVertical) { |
| gfx::Rect in(40, 50, 100, 200); |
| gfx::Rect bounds(40, 0, 100, 300); |
| int64 target_area = 200 * 200; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_EQ(bounds.ToString(), out.ToString()); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectBoundedSmallerStretchHorizontal) { |
| gfx::Rect in(40, 50, 100, 200); |
| gfx::Rect bounds(0, 55, 180, 190); |
| int64 target_area = 200 * 200; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_EQ(bounds.ToString(), out.ToString()); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectBoundedEqualStretchHorizontal) { |
| gfx::Rect in(40, 50, 100, 200); |
| gfx::Rect bounds(0, 50, 180, 200); |
| int64 target_area = 200 * 200; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_EQ(bounds.ToString(), out.ToString()); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectBoundedLeft) { |
| gfx::Rect in(40, 50, 100, 200); |
| gfx::Rect bounds(20, -1000, 10000, 10000); |
| int64 target_area = 200 * 200; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y()); |
| EXPECT_EQ(out.bottom() - in.bottom(), out.right() - in.right()); |
| EXPECT_LE(out.width() * out.height(), target_area); |
| EXPECT_GT(out.width() * out.height(), |
| target_area - out.width() - out.height() * 2); |
| EXPECT_TRUE(bounds.Contains(out)); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectBoundedRight) { |
| gfx::Rect in(40, 50, 100, 200); |
| gfx::Rect bounds(-1000, -1000, 1000+120, 10000); |
| int64 target_area = 200 * 200; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y()); |
| EXPECT_EQ(out.bottom() - in.bottom(), in.x() - out.x()); |
| EXPECT_LE(out.width() * out.height(), target_area); |
| EXPECT_GT(out.width() * out.height(), |
| target_area - out.width() - out.height() * 2); |
| EXPECT_TRUE(bounds.Contains(out)); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectBoundedTop) { |
| gfx::Rect in(40, 50, 100, 200); |
| gfx::Rect bounds(-1000, 30, 10000, 10000); |
| int64 target_area = 200 * 200; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_EQ(out.right() - in.right(), in.x() - out.x()); |
| EXPECT_EQ(out.right() - in.right(), out.bottom() - in.bottom()); |
| EXPECT_LE(out.width() * out.height(), target_area); |
| EXPECT_GT(out.width() * out.height(), |
| target_area - out.width() * 2 - out.height()); |
| EXPECT_TRUE(bounds.Contains(out)); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectBoundedBottom) { |
| gfx::Rect in(40, 50, 100, 200); |
| gfx::Rect bounds(-1000, -1000, 10000, 1000 + 220); |
| int64 target_area = 200 * 200; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_EQ(out.right() - in.right(), in.x() - out.x()); |
| EXPECT_EQ(out.right() - in.right(), in.y() - out.y()); |
| EXPECT_LE(out.width() * out.height(), target_area); |
| EXPECT_GT(out.width() * out.height(), |
| target_area - out.width() * 2 - out.height()); |
| EXPECT_TRUE(bounds.Contains(out)); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectSquishedHorizontally) { |
| gfx::Rect in(40, 50, 100, 200); |
| gfx::Rect bounds(0, -4000, 100+40+20, 100000); |
| int64 target_area = 400 * 400; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_EQ(20, out.right() - in.right()); |
| EXPECT_EQ(40, in.x() - out.x()); |
| EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y()); |
| EXPECT_LE(out.width() * out.height(), target_area); |
| EXPECT_GT(out.width() * out.height(), |
| target_area - out.width() * 2); |
| EXPECT_TRUE(bounds.Contains(out)); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectSquishedVertically) { |
| gfx::Rect in(40, 50, 100, 200); |
| gfx::Rect bounds(-4000, 0, 100000, 200+50+30); |
| int64 target_area = 400 * 400; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_EQ(30, out.bottom() - in.bottom()); |
| EXPECT_EQ(50, in.y() - out.y()); |
| EXPECT_EQ(out.right() - in.right(), in.x() - out.x()); |
| EXPECT_LE(out.width() * out.height(), target_area); |
| EXPECT_GT(out.width() * out.height(), |
| target_area - out.height() * 2); |
| EXPECT_TRUE(bounds.Contains(out)); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectOutOfBoundsFarAway) { |
| gfx::Rect in(400, 500, 100, 200); |
| gfx::Rect bounds(0, 0, 10, 10); |
| int64 target_area = 400 * 400; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_TRUE(out.IsEmpty()); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectOutOfBoundsExpandedFullyCover) { |
| gfx::Rect in(40, 50, 100, 100); |
| gfx::Rect bounds(0, 0, 10, 10); |
| int64 target_area = 400 * 400; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_EQ(bounds.ToString(), out.ToString()); |
| } |
| |
| TEST(PictureLayerTilingTest, ExpandRectOutOfBoundsExpandedPartlyCover) { |
| gfx::Rect in(600, 600, 100, 100); |
| gfx::Rect bounds(0, 0, 500, 500); |
| int64 target_area = 400 * 400; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_EQ(bounds.right(), out.right()); |
| EXPECT_EQ(bounds.bottom(), out.bottom()); |
| EXPECT_LE(out.width() * out.height(), target_area); |
| EXPECT_GT(out.width() * out.height(), |
| target_area - out.width() - out.height()); |
| EXPECT_TRUE(bounds.Contains(out)); |
| } |
| |
| TEST(PictureLayerTilingTest, EmptyStartingRect) { |
| // If a layer has a non-invertible transform, then the starting rect |
| // for the layer would be empty. |
| gfx::Rect in(40, 40, 0, 0); |
| gfx::Rect bounds(0, 0, 10, 10); |
| int64 target_area = 400 * 400; |
| gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy( |
| in, target_area, bounds, NULL); |
| EXPECT_TRUE(out.IsEmpty()); |
| } |
| |
| TEST(PictureLayerTilingTest, TilingRasterTileIteratorStaticViewport) { |
| FakePictureLayerTilingClient client; |
| scoped_ptr<TestablePictureLayerTiling> tiling; |
| |
| gfx::Rect viewport(50, 50, 100, 100); |
| gfx::Size layer_bounds(800, 800); |
| |
| gfx::Rect soon_rect = viewport; |
| soon_rect.Inset(-312.f, -312.f, -312.f, -312.f); |
| |
| client.SetTileSize(gfx::Size(30, 30)); |
| |
| tiling = TestablePictureLayerTiling::Create(1.0f, layer_bounds, &client); |
| tiling->UpdateTilePriorities(ACTIVE_TREE, viewport, 1.0f, 1.0); |
| |
| PictureLayerTiling::TilingRasterTileIterator empty_iterator; |
| EXPECT_FALSE(empty_iterator); |
| |
| std::vector<Tile*> all_tiles = tiling->AllTilesForTesting(); |
| |
| // Sanity check. |
| EXPECT_EQ(841u, all_tiles.size()); |
| |
| // The explanation of each iteration is as follows: |
| // 1. First iteration tests that we can get all of the tiles correctly. |
| // 2. Second iteration ensures that we can get all of the tiles again (first |
| // iteration didn't change any tiles), as well set all tiles to be ready to |
| // draw. |
| // 3. Third iteration ensures that no tiles are returned, since they were all |
| // marked as ready to draw. |
| for (int i = 0; i < 3; ++i) { |
| PictureLayerTiling::TilingRasterTileIterator it(tiling.get(), ACTIVE_TREE); |
| |
| // There are 3 bins in TilePriority. |
| bool have_tiles[3] = {}; |
| |
| // On the third iteration, we should get no tiles since everything was |
| // marked as ready to draw. |
| if (i == 2) { |
| EXPECT_FALSE(it); |
| continue; |
| } |
| |
| EXPECT_TRUE(it); |
| std::set<Tile*> unique_tiles; |
| unique_tiles.insert(*it); |
| Tile* last_tile = *it; |
| have_tiles[last_tile->priority(ACTIVE_TREE).priority_bin] = true; |
| |
| // On the second iteration, mark everything as ready to draw (solid color). |
| if (i == 1) { |
| ManagedTileState::TileVersion& tile_version = |
| last_tile->GetTileVersionForTesting( |
| last_tile->DetermineRasterModeForTree(ACTIVE_TREE)); |
| tile_version.SetSolidColorForTesting(SK_ColorRED); |
| } |
| ++it; |
| int eventually_bin_order_correct_count = 0; |
| int eventually_bin_order_incorrect_count = 0; |
| while (it) { |
| Tile* new_tile = *it; |
| ++it; |
| unique_tiles.insert(new_tile); |
| |
| TilePriority last_priority = last_tile->priority(ACTIVE_TREE); |
| TilePriority new_priority = new_tile->priority(ACTIVE_TREE); |
| EXPECT_LE(last_priority.priority_bin, new_priority.priority_bin); |
| if (last_priority.priority_bin == new_priority.priority_bin) { |
| if (last_priority.priority_bin == TilePriority::EVENTUALLY) { |
| bool order_correct = last_priority.distance_to_visible <= |
| new_priority.distance_to_visible; |
| eventually_bin_order_correct_count += order_correct; |
| eventually_bin_order_incorrect_count += !order_correct; |
| } else if (!soon_rect.Intersects(new_tile->content_rect()) && |
| !soon_rect.Intersects(last_tile->content_rect())) { |
| EXPECT_LE(last_priority.distance_to_visible, |
| new_priority.distance_to_visible); |
| EXPECT_EQ(TilePriority::NOW, new_priority.priority_bin); |
| } else if (new_priority.distance_to_visible > 0.f) { |
| EXPECT_EQ(TilePriority::SOON, new_priority.priority_bin); |
| } |
| } |
| have_tiles[new_priority.priority_bin] = true; |
| |
| last_tile = new_tile; |
| |
| // On the second iteration, mark everything as ready to draw (solid |
| // color). |
| if (i == 1) { |
| ManagedTileState::TileVersion& tile_version = |
| last_tile->GetTileVersionForTesting( |
| last_tile->DetermineRasterModeForTree(ACTIVE_TREE)); |
| tile_version.SetSolidColorForTesting(SK_ColorRED); |
| } |
| } |
| |
| EXPECT_GT(eventually_bin_order_correct_count, |
| eventually_bin_order_incorrect_count); |
| |
| // We should have now and eventually tiles, as well as soon tiles from |
| // the border region. |
| EXPECT_TRUE(have_tiles[TilePriority::NOW]); |
| EXPECT_TRUE(have_tiles[TilePriority::SOON]); |
| EXPECT_TRUE(have_tiles[TilePriority::EVENTUALLY]); |
| |
| EXPECT_EQ(unique_tiles.size(), all_tiles.size()); |
| } |
| } |
| |
| TEST(PictureLayerTilingTest, TilingRasterTileIteratorMovingViewport) { |
| FakePictureLayerTilingClient client; |
| scoped_ptr<TestablePictureLayerTiling> tiling; |
| |
| gfx::Rect viewport(50, 0, 100, 100); |
| gfx::Rect moved_viewport(50, 0, 100, 500); |
| gfx::Size layer_bounds(1000, 1000); |
| |
| client.SetTileSize(gfx::Size(30, 30)); |
| |
| tiling = TestablePictureLayerTiling::Create(1.f, layer_bounds, &client); |
| tiling->UpdateTilePriorities(ACTIVE_TREE, viewport, 1.0f, 1.0); |
| tiling->UpdateTilePriorities(ACTIVE_TREE, moved_viewport, 1.0f, 2.0); |
| |
| gfx::Rect soon_rect = moved_viewport; |
| soon_rect.Inset(-312.f, -312.f, -312.f, -312.f); |
| |
| // There are 3 bins in TilePriority. |
| bool have_tiles[3] = {}; |
| Tile* last_tile = NULL; |
| int eventually_bin_order_correct_count = 0; |
| int eventually_bin_order_incorrect_count = 0; |
| for (PictureLayerTiling::TilingRasterTileIterator it(tiling.get(), |
| ACTIVE_TREE); |
| it; |
| ++it) { |
| if (!last_tile) |
| last_tile = *it; |
| |
| Tile* new_tile = *it; |
| |
| TilePriority last_priority = last_tile->priority(ACTIVE_TREE); |
| TilePriority new_priority = new_tile->priority(ACTIVE_TREE); |
| |
| have_tiles[new_priority.priority_bin] = true; |
| |
| EXPECT_LE(last_priority.priority_bin, new_priority.priority_bin); |
| if (last_priority.priority_bin == new_priority.priority_bin) { |
| if (last_priority.priority_bin == TilePriority::EVENTUALLY) { |
| bool order_correct = last_priority.distance_to_visible <= |
| new_priority.distance_to_visible; |
| eventually_bin_order_correct_count += order_correct; |
| eventually_bin_order_incorrect_count += !order_correct; |
| } else if (!soon_rect.Intersects(new_tile->content_rect()) && |
| !soon_rect.Intersects(last_tile->content_rect())) { |
| EXPECT_LE(last_priority.distance_to_visible, |
| new_priority.distance_to_visible); |
| } else if (new_priority.distance_to_visible > 0.f) { |
| EXPECT_EQ(TilePriority::SOON, new_priority.priority_bin); |
| } |
| } |
| last_tile = new_tile; |
| } |
| |
| EXPECT_GT(eventually_bin_order_correct_count, |
| eventually_bin_order_incorrect_count); |
| |
| EXPECT_TRUE(have_tiles[TilePriority::NOW]); |
| EXPECT_TRUE(have_tiles[TilePriority::SOON]); |
| EXPECT_TRUE(have_tiles[TilePriority::EVENTUALLY]); |
| } |
| |
| static void TileExists(bool exists, Tile* tile, |
| const gfx::Rect& geometry_rect) { |
| EXPECT_EQ(exists, tile != NULL) << geometry_rect.ToString(); |
| } |
| |
| TEST(PictureLayerTilingTest, TilingEvictionTileIteratorStaticViewport) { |
| FakeOutputSurfaceClient output_surface_client; |
| scoped_ptr<FakeOutputSurface> output_surface = FakeOutputSurface::Create3d(); |
| CHECK(output_surface->BindToClient(&output_surface_client)); |
| TestSharedBitmapManager shared_bitmap_manager; |
| scoped_ptr<ResourceProvider> resource_provider = ResourceProvider::Create( |
| output_surface.get(), &shared_bitmap_manager, 0, false, 1, false); |
| |
| FakePictureLayerTilingClient client(resource_provider.get()); |
| scoped_ptr<TestablePictureLayerTiling> tiling; |
| |
| gfx::Rect viewport(50, 50, 100, 100); |
| gfx::Size layer_bounds(200, 200); |
| |
| client.SetTileSize(gfx::Size(30, 30)); |
| |
| tiling = TestablePictureLayerTiling::Create(1.0f, layer_bounds, &client); |
| tiling->UpdateTilePriorities(ACTIVE_TREE, viewport, 1.0f, 1.0); |
| |
| PictureLayerTiling::TilingRasterTileIterator empty_iterator; |
| EXPECT_FALSE(empty_iterator); |
| |
| std::vector<Tile*> all_tiles = tiling->AllTilesForTesting(); |
| |
| PictureLayerTiling::TilingEvictionTileIterator it(tiling.get(), |
| SMOOTHNESS_TAKES_PRIORITY); |
| |
| // Tiles don't have resources to evict. |
| EXPECT_FALSE(it); |
| |
| // Sanity check. |
| EXPECT_EQ(64u, all_tiles.size()); |
| |
| client.tile_manager()->InitializeTilesWithResourcesForTesting(all_tiles); |
| |
| std::set<Tile*> all_tiles_set(all_tiles.begin(), all_tiles.end()); |
| |
| it = PictureLayerTiling::TilingEvictionTileIterator( |
| tiling.get(), SMOOTHNESS_TAKES_PRIORITY); |
| EXPECT_TRUE(it); |
| |
| std::set<Tile*> eviction_tiles; |
| Tile* last_tile = *it; |
| for (; it; ++it) { |
| Tile* tile = *it; |
| EXPECT_TRUE(tile); |
| EXPECT_LE(tile->priority(ACTIVE_TREE).priority_bin, |
| last_tile->priority(ACTIVE_TREE).priority_bin); |
| if (tile->priority(ACTIVE_TREE).priority_bin == |
| last_tile->priority(ACTIVE_TREE).priority_bin) { |
| EXPECT_LE(tile->priority(ACTIVE_TREE).distance_to_visible, |
| last_tile->priority(ACTIVE_TREE).distance_to_visible); |
| } |
| last_tile = tile; |
| eviction_tiles.insert(tile); |
| } |
| |
| EXPECT_GT(all_tiles_set.size(), 0u); |
| EXPECT_EQ(all_tiles_set, eviction_tiles); |
| } |
| |
| 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_->UpdateTilePriorities( |
| ACTIVE_TREE, |
| gfx::Rect(layer_bounds), // visible content rect |
| 1.f, // current contents scale |
| 1.0); // current frame time |
| VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true)); |
| |
| // Make the viewport rect empty. All tiles are killed and become zombies. |
| tiling_->UpdateTilePriorities(ACTIVE_TREE, |
| gfx::Rect(), // visible content rect |
| 1.f, // current contents scale |
| 2.0); // current frame time |
| 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_->UpdateTilePriorities( |
| ACTIVE_TREE, |
| gfx::Rect(layer_bounds), // visible content rect |
| 1.f, // current contents scale |
| 1.0); // current frame time |
| VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true)); |
| |
| // If the visible content rect is empty, it should still have live tiles. |
| tiling_->UpdateTilePriorities(ACTIVE_TREE, |
| giant_rect, // visible content rect |
| 1.f, // current contents scale |
| 2.0); // current frame time |
| 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))); |
| |
| tiling_->UpdateTilePriorities(ACTIVE_TREE, |
| viewport_rect, // visible content rect |
| 1.f, // current contents scale |
| 1.0); // current frame time |
| 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); |
| 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 visible_rect(8000, 8000, 50, 50); |
| |
| set_max_tiles_for_interest_area(1); |
| tiling_->UpdateTilePriorities(ACTIVE_TREE, |
| visible_rect, // visible content rect |
| 1.f, // current contents scale |
| 1.0); // current frame time |
| VerifyTiles(1.f, |
| gfx::Rect(layer_bounds), |
| base::Bind(&TilesIntersectingRectExist, visible_rect, true)); |
| } |
| |
| static void CountExistingTiles(int *count, |
| Tile* tile, |
| const gfx::Rect& geometry_rect) { |
| if (tile != NULL) |
| ++(*count); |
| } |
| |
| TEST_F(PictureLayerTilingIteratorTest, |
| TilesExistLargeViewportAndLayerWithLargeVisibleArea) { |
| gfx::Size layer_bounds(10000, 10000); |
| 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)); |
| |
| set_max_tiles_for_interest_area(1); |
| tiling_->UpdateTilePriorities( |
| ACTIVE_TREE, |
| gfx::Rect(layer_bounds), // visible content rect |
| 1.f, // current contents scale |
| 1.0); // current frame time |
| |
| int num_tiles = 0; |
| VerifyTiles(1.f, |
| gfx::Rect(layer_bounds), |
| base::Bind(&CountExistingTiles, &num_tiles)); |
| // If we're making a rect the size of one tile, it can only overlap up to 4 |
| // tiles depending on its position. |
| EXPECT_LE(num_tiles, 4); |
| VerifyTiles(1.f, gfx::Rect(), base::Bind(&TileExists, false)); |
| } |
| |
| TEST_F(PictureLayerTilingIteratorTest, AddTilingsToMatchScale) { |
| gfx::Size layer_bounds(1099, 801); |
| gfx::Size tile_size(100, 100); |
| |
| client_.SetTileSize(tile_size); |
| |
| PictureLayerTilingSet active_set(&client_, layer_bounds); |
| |
| active_set.AddTiling(1.f); |
| |
| VerifyTiles(active_set.tiling_at(0), |
| 1.f, |
| gfx::Rect(layer_bounds), |
| base::Bind(&TileExists, false)); |
| |
| UpdateAllTilePriorities(&active_set, |
| PENDING_TREE, |
| gfx::Rect(layer_bounds), // visible content rect |
| 1.f, // current contents scale |
| 1.0); // current frame time |
| |
| // The active tiling has tiles now. |
| VerifyTiles(active_set.tiling_at(0), |
| 1.f, |
| gfx::Rect(layer_bounds), |
| base::Bind(&TileExists, true)); |
| |
| // Add the same tilings to the pending set. |
| PictureLayerTilingSet pending_set(&client_, layer_bounds); |
| Region invalidation; |
| pending_set.SyncTilings(active_set, layer_bounds, invalidation, 0.f); |
| |
| // The pending tiling starts with no tiles. |
| VerifyTiles(pending_set.tiling_at(0), |
| 1.f, |
| gfx::Rect(layer_bounds), |
| base::Bind(&TileExists, false)); |
| |
| // UpdateTilePriorities on the pending tiling at the same frame time. The |
| // pending tiling should get tiles. |
| UpdateAllTilePriorities(&pending_set, |
| PENDING_TREE, |
| gfx::Rect(layer_bounds), // visible content rect |
| 1.f, // current contents scale |
| 1.0); // current frame time |
| |
| VerifyTiles(pending_set.tiling_at(0), |
| 1.f, |
| gfx::Rect(layer_bounds), |
| base::Bind(&TileExists, true)); |
| } |
| |
| TEST(UpdateTilePrioritiesTest, VisibleTiles) { |
| // The TilePriority of visible tiles should have zero distance_to_visible |
| // and time_to_visible. |
| |
| FakePictureLayerTilingClient client; |
| scoped_ptr<TestablePictureLayerTiling> tiling; |
| |
| 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; |
| double current_frame_time_in_seconds = 1.0; |
| |
| gfx::Rect viewport_in_layer_space = ViewportInLayerSpace( |
| current_screen_transform, device_viewport); |
| |
| client.SetTileSize(gfx::Size(100, 100)); |
| tiling = TestablePictureLayerTiling::Create(1.0f, // contents_scale |
| current_layer_bounds, |
| &client); |
| |
| tiling->UpdateTilePriorities(ACTIVE_TREE, |
| viewport_in_layer_space, |
| current_layer_contents_scale, |
| current_frame_time_in_seconds); |
| |
| 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 = tiling->TileAt(0, 0)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible); |
| EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible); |
| EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible); |
| EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible); |
| EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin); |
| } |
| |
| TEST(UpdateTilePrioritiesTest, OffscreenTiles) { |
| // The TilePriority of offscreen tiles (without movement) should have nonzero |
| // distance_to_visible and infinite time_to_visible. |
| |
| FakePictureLayerTilingClient client; |
| scoped_ptr<TestablePictureLayerTiling> tiling; |
| |
| 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; |
| double current_frame_time_in_seconds = 1.0; |
| |
| 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)); |
| tiling = TestablePictureLayerTiling::Create(1.0f, // contents_scale |
| current_layer_bounds, |
| &client); |
| |
| tiling->UpdateTilePriorities(ACTIVE_TREE, |
| viewport_in_layer_space, |
| current_layer_contents_scale, |
| current_frame_time_in_seconds); |
| |
| 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 = tiling->TileAt(0, 0)->priority(ACTIVE_TREE); |
| EXPECT_GT(priority.distance_to_visible, 0.f); |
| EXPECT_NE(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE); |
| EXPECT_GT(priority.distance_to_visible, 0.f); |
| EXPECT_NE(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE); |
| EXPECT_GT(priority.distance_to_visible, 0.f); |
| EXPECT_NE(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE); |
| 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 = tiling->TileAt(0, 0)->priority(ACTIVE_TREE); |
| TilePriority right = tiling->TileAt(1, 0)->priority(ACTIVE_TREE); |
| EXPECT_GT(right.distance_to_visible, left.distance_to_visible); |
| |
| left = tiling->TileAt(0, 1)->priority(ACTIVE_TREE); |
| right = tiling->TileAt(1, 1)->priority(ACTIVE_TREE); |
| EXPECT_GT(right.distance_to_visible, left.distance_to_visible); |
| } |
| |
| TEST(UpdateTilePrioritiesTest, PartiallyOffscreenLayer) { |
| // Sanity check that a layer with some tiles visible and others offscreen has |
| // correct TilePriorities for each tile. |
| |
| FakePictureLayerTilingClient client; |
| scoped_ptr<TestablePictureLayerTiling> tiling; |
| |
| 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; |
| double current_frame_time_in_seconds = 1.0; |
| |
| 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)); |
| tiling = TestablePictureLayerTiling::Create(1.0f, // contents_scale |
| current_layer_bounds, |
| &client); |
| |
| tiling->UpdateTilePriorities(ACTIVE_TREE, |
| viewport_in_layer_space, |
| current_layer_contents_scale, |
| current_frame_time_in_seconds); |
| |
| 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 = tiling->TileAt(0, 0)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible); |
| EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE); |
| EXPECT_GT(priority.distance_to_visible, 0.f); |
| EXPECT_NE(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE); |
| EXPECT_GT(priority.distance_to_visible, 0.f); |
| EXPECT_NE(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE); |
| EXPECT_GT(priority.distance_to_visible, 0.f); |
| EXPECT_NE(TilePriority::NOW, priority.priority_bin); |
| } |
| |
| TEST(UpdateTilePrioritiesTest, PartiallyOffscreenRotatedLayer) { |
| // Each tile of a layer may be affected differently by a transform; Check |
| // that UpdateTilePriorities correctly accounts for the transform between |
| // layer space and screen space. |
| |
| FakePictureLayerTilingClient client; |
| scoped_ptr<TestablePictureLayerTiling> tiling; |
| |
| 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; |
| double current_frame_time_in_seconds = 1.0; |
| |
| // A diagonally rotated layer that is partially off the bottom of the screen. |
| // In this configuration, only the top-left tile would be visible. |
| current_screen_transform.Translate(600, 750); |
| current_screen_transform.RotateAboutZAxis(45); |
| last_screen_transform = current_screen_transform; |
| |
| gfx::Rect viewport_in_layer_space = ViewportInLayerSpace( |
| current_screen_transform, device_viewport); |
| |
| client.SetTileSize(gfx::Size(100, 100)); |
| tiling = TestablePictureLayerTiling::Create(1.0f, // contents_scale |
| current_layer_bounds, |
| &client); |
| |
| tiling->UpdateTilePriorities(ACTIVE_TREE, |
| viewport_in_layer_space, |
| current_layer_contents_scale, |
| current_frame_time_in_seconds); |
| |
| 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 = tiling->TileAt(0, 0)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible); |
| EXPECT_EQ(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible); |
| EXPECT_EQ(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE); |
| EXPECT_GT(priority.distance_to_visible, 0.f); |
| EXPECT_NE(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE); |
| EXPECT_GT(priority.distance_to_visible, 0.f); |
| EXPECT_NE(TilePriority::NOW, priority.priority_bin); |
| |
| // Furthermore, in this scenario the bottom-right tile should have the larger |
| // distance to visible. |
| TilePriority top_left = tiling->TileAt(0, 0)->priority(ACTIVE_TREE); |
| TilePriority top_right = tiling->TileAt(1, 0)->priority(ACTIVE_TREE); |
| TilePriority bottom_right = tiling->TileAt(1, 1)->priority(ACTIVE_TREE); |
| EXPECT_GT(top_right.distance_to_visible, top_left.distance_to_visible); |
| |
| EXPECT_EQ(bottom_right.distance_to_visible, top_right.distance_to_visible); |
| } |
| |
| TEST(UpdateTilePrioritiesTest, PerspectiveLayer) { |
| // Perspective transforms need to take a different code path. |
| // This test checks tile priorities of a perspective layer. |
| |
| FakePictureLayerTilingClient client; |
| scoped_ptr<TestablePictureLayerTiling> tiling; |
| |
| gfx::Size device_viewport(800, 600); |
| gfx::Rect visible_layer_rect(0, 0, 0, 0); // offscreen. |
| 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; |
| double current_frame_time_in_seconds = 1.0; |
| |
| // A 3d perspective layer rotated about its Y axis, translated to almost |
| // fully offscreen. The left side will appear closer (i.e. larger in 2d) than |
| // the right side, so the top-left tile will technically be closer than the |
| // top-right. |
| |
| // Translate layer to offscreen |
| current_screen_transform.Translate(400.0, 630.0); |
| // Apply perspective about the center of the layer |
| current_screen_transform.Translate(100.0, 100.0); |
| current_screen_transform.ApplyPerspectiveDepth(100.0); |
| current_screen_transform.RotateAboutYAxis(10.0); |
| current_screen_transform.Translate(-100.0, -100.0); |
| last_screen_transform = current_screen_transform; |
| |
| // Sanity check that this transform wouldn't cause w<0 clipping. |
| bool clipped; |
| MathUtil::MapQuad(current_screen_transform, |
| gfx::QuadF(gfx::RectF(0, 0, 200, 200)), |
| &clipped); |
| ASSERT_FALSE(clipped); |
| |
| gfx::Rect viewport_in_layer_space = ViewportInLayerSpace( |
| current_screen_transform, device_viewport); |
| |
| client.SetTileSize(gfx::Size(100, 100)); |
| tiling = TestablePictureLayerTiling::Create(1.0f, // contents_scale |
| current_layer_bounds, |
| &client); |
| |
| tiling->UpdateTilePriorities(ACTIVE_TREE, |
| viewport_in_layer_space, |
| current_layer_contents_scale, |
| current_frame_time_in_seconds); |
| |
| ASSERT_TRUE(tiling->TileAt(0, 0)); |
| ASSERT_TRUE(tiling->TileAt(0, 1)); |
| ASSERT_TRUE(tiling->TileAt(1, 0)); |
| ASSERT_TRUE(tiling->TileAt(1, 1)); |
| |
| // All tiles will have a positive distance_to_visible |
| // and an infinite time_to_visible. |
| TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(priority.distance_to_visible, 0.f); |
| EXPECT_EQ(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE); |
| EXPECT_GT(priority.distance_to_visible, 0.f); |
| EXPECT_NE(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(priority.distance_to_visible, 0.f); |
| EXPECT_EQ(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE); |
| EXPECT_GT(priority.distance_to_visible, 0.f); |
| EXPECT_NE(TilePriority::NOW, priority.priority_bin); |
| |
| // Furthermore, in this scenario the top-left distance_to_visible |
| // will be smallest, followed by top-right. The bottom layers |
| // will of course be further than the top layers. |
| TilePriority top_left = tiling->TileAt(0, 0)->priority(ACTIVE_TREE); |
| TilePriority top_right = tiling->TileAt(1, 0)->priority(ACTIVE_TREE); |
| TilePriority bottom_left = tiling->TileAt(0, 1)->priority(ACTIVE_TREE); |
| TilePriority bottom_right = tiling->TileAt(1, 1)->priority(ACTIVE_TREE); |
| |
| EXPECT_GT(bottom_right.distance_to_visible, top_right.distance_to_visible); |
| |
| EXPECT_GT(bottom_left.distance_to_visible, top_left.distance_to_visible); |
| } |
| |
| TEST(UpdateTilePrioritiesTest, PerspectiveLayerClippedByW) { |
| // Perspective transforms need to take a different code path. |
| // This test checks tile priorities of a perspective layer. |
| |
| FakePictureLayerTilingClient client; |
| scoped_ptr<TestablePictureLayerTiling> tiling; |
| |
| 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; |
| double current_frame_time_in_seconds = 1.0; |
| |
| // A 3d perspective layer rotated about its Y axis, translated to almost |
| // fully offscreen. The left side will appear closer (i.e. larger in 2d) than |
| // the right side, so the top-left tile will technically be closer than the |
| // top-right. |
| |
| // Translate layer to offscreen |
| current_screen_transform.Translate(400.0, 970.0); |
| // Apply perspective and rotation about the center of the layer |
| current_screen_transform.Translate(100.0, 100.0); |
| current_screen_transform.ApplyPerspectiveDepth(10.0); |
| current_screen_transform.RotateAboutYAxis(10.0); |
| current_screen_transform.Translate(-100.0, -100.0); |
| last_screen_transform = current_screen_transform; |
| |
| // Sanity check that this transform does cause w<0 clipping for the left side |
| // of the layer, but not the right side. |
| bool clipped; |
| MathUtil::MapQuad(current_screen_transform, |
| gfx::QuadF(gfx::RectF(0, 0, 100, 200)), |
| &clipped); |
| ASSERT_TRUE(clipped); |
| |
| MathUtil::MapQuad(current_screen_transform, |
| gfx::QuadF(gfx::RectF(100, 0, 100, 200)), |
| &clipped); |
| ASSERT_FALSE(clipped); |
| |
| gfx::Rect viewport_in_layer_space = ViewportInLayerSpace( |
| current_screen_transform, device_viewport); |
| |
| client.SetTileSize(gfx::Size(100, 100)); |
| tiling = TestablePictureLayerTiling::Create(1.0f, // contents_scale |
| current_layer_bounds, |
| &client); |
| |
| tiling->UpdateTilePriorities(ACTIVE_TREE, |
| viewport_in_layer_space, |
| current_layer_contents_scale, |
| current_frame_time_in_seconds); |
| |
| ASSERT_TRUE(tiling->TileAt(0, 0)); |
| ASSERT_TRUE(tiling->TileAt(0, 1)); |
| ASSERT_TRUE(tiling->TileAt(1, 0)); |
| ASSERT_TRUE(tiling->TileAt(1, 1)); |
| |
| // Left-side tiles will be clipped by the transform, so we have to assume |
| // they are visible just in case. |
| TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible); |
| EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE); |
| EXPECT_GT(priority.distance_to_visible, 0.f); |
| EXPECT_NE(TilePriority::NOW, priority.priority_bin); |
| |
| // Right-side tiles will have a positive distance_to_visible |
| // and an infinite time_to_visible. |
| priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(priority.distance_to_visible, 0.f); |
| EXPECT_EQ(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE); |
| EXPECT_GT(priority.distance_to_visible, 0.f); |
| EXPECT_NE(TilePriority::NOW, priority.priority_bin); |
| } |
| |
| TEST(UpdateTilePrioritiesTest, BasicMotion) { |
| // Test that time_to_visible is computed correctly when |
| // there is some motion. |
| |
| FakePictureLayerTilingClient client; |
| scoped_ptr<TestablePictureLayerTiling> tiling; |
| |
| gfx::Size device_viewport(800, 600); |
| gfx::Rect visible_layer_rect(0, 0, 0, 0); |
| gfx::Size last_layer_bounds(200, 200); |
| gfx::Size current_layer_bounds(200, 200); |
| float last_layer_contents_scale = 1.f; |
| float current_layer_contents_scale = 1.f; |
| gfx::Transform last_screen_transform; |
| gfx::Transform current_screen_transform; |
| double last_frame_time_in_seconds = 1.0; |
| double current_frame_time_in_seconds = 2.0; |
| |
| // Offscreen layer is coming closer to viewport at 1000 pixels per second. |
| current_screen_transform.Translate(1800, 0); |
| last_screen_transform.Translate(2800, 0); |
| |
| gfx::Rect viewport_in_layer_space = ViewportInLayerSpace( |
| current_screen_transform, device_viewport); |
| |
| client.SetTileSize(gfx::Size(100, 100)); |
| tiling = TestablePictureLayerTiling::Create(1.0f, // contents_scale |
| current_layer_bounds, |
| &client); |
| |
| // previous ("last") frame |
| tiling->UpdateTilePriorities(ACTIVE_TREE, |
| viewport_in_layer_space, |
| last_layer_contents_scale, |
| last_frame_time_in_seconds); |
| |
| // current frame |
| tiling->UpdateTilePriorities(ACTIVE_TREE, |
| viewport_in_layer_space, |
| current_layer_contents_scale, |
| current_frame_time_in_seconds); |
| |
| 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 = tiling->TileAt(0, 0)->priority(ACTIVE_TREE); |
| EXPECT_GT(priority.distance_to_visible, 0.f); |
| EXPECT_NE(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE); |
| EXPECT_GT(priority.distance_to_visible, 0.f); |
| EXPECT_NE(TilePriority::NOW, priority.priority_bin); |
| |
| // time_to_visible for the right hand side layers needs an extra 0.099 |
| // seconds because this tile is 99 pixels further away. |
| priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE); |
| EXPECT_GT(priority.distance_to_visible, 0.f); |
| EXPECT_NE(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE); |
| EXPECT_GT(priority.distance_to_visible, 0.f); |
| EXPECT_NE(TilePriority::NOW, priority.priority_bin); |
| } |
| |
| TEST(UpdateTilePrioritiesTest, RotationMotion) { |
| // Each tile of a layer may be affected differently by a transform; Check |
| // that UpdateTilePriorities correctly accounts for the transform between |
| // layer space and screen space. |
| |
| FakePictureLayerTilingClient client; |
| scoped_ptr<TestablePictureLayerTiling> tiling; |
| |
| gfx::Size device_viewport(800, 600); |
| gfx::Rect visible_layer_rect(0, 0, 0, 0); // offscren. |
| gfx::Size last_layer_bounds(200, 200); |
| gfx::Size current_layer_bounds(200, 200); |
| float last_layer_contents_scale = 1.f; |
| float current_layer_contents_scale = 1.f; |
| gfx::Transform last_screen_transform; |
| gfx::Transform current_screen_transform; |
| double last_frame_time_in_seconds = 1.0; |
| double current_frame_time_in_seconds = 2.0; |
| |
| // Rotation motion is set up specifically so that: |
| // - rotation occurs about the center of the layer |
| // - the top-left tile becomes visible on rotation |
| // - the top-right tile will have an infinite time_to_visible |
| // because it is rotating away from viewport. |
| // - bottom-left layer will have a positive non-zero time_to_visible |
| // because it is rotating toward the viewport. |
| current_screen_transform.Translate(400, 550); |
| current_screen_transform.RotateAboutZAxis(45); |
| |
| last_screen_transform.Translate(400, 550); |
| |
| gfx::Rect viewport_in_layer_space = ViewportInLayerSpace( |
| current_screen_transform, device_viewport); |
| |
| client.SetTileSize(gfx::Size(100, 100)); |
| tiling = TestablePictureLayerTiling::Create(1.0f, // contents_scale |
| current_layer_bounds, |
| &client); |
| |
| // previous ("last") frame |
| tiling->UpdateTilePriorities(ACTIVE_TREE, |
| viewport_in_layer_space, |
| last_layer_contents_scale, |
| last_frame_time_in_seconds); |
| |
| // current frame |
| tiling->UpdateTilePriorities(ACTIVE_TREE, |
| viewport_in_layer_space, |
| current_layer_contents_scale, |
| current_frame_time_in_seconds); |
| |
| 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 = tiling->TileAt(0, 0)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible); |
| EXPECT_EQ(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible); |
| EXPECT_EQ(TilePriority::NOW, priority.priority_bin); |
| |
| priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE); |
| EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible); |
| EXPECT_EQ(TilePriority::NOW, priority.priority_bin); |
| } |
| |
| } // namespace |
| } // namespace cc |
