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Revert of Linux MSan: enable swarming/sharding for browser_tests. (patchset #1 id...
[chromium-blink-merge.git] / cc / resources / picture_layer_tiling_unittest.cc
blobfccd3c86284a34c42357315f6d919b44b2a9d1ab
1 // Copyright 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "cc/resources/picture_layer_tiling.h"
6
7 #include <limits>
8 #include <set>
9
10 #include "cc/base/math_util.h"
11 #include "cc/resources/picture_layer_tiling_set.h"
12 #include "cc/test/fake_output_surface.h"
13 #include "cc/test/fake_output_surface_client.h"
14 #include "cc/test/fake_picture_layer_tiling_client.h"
15 #include "cc/test/fake_picture_pile_impl.h"
16 #include "cc/test/test_context_provider.h"
17 #include "cc/test/test_shared_bitmap_manager.h"
18 #include "testing/gtest/include/gtest/gtest.h"
19 #include "ui/gfx/geometry/quad_f.h"
20 #include "ui/gfx/geometry/rect_conversions.h"
21 #include "ui/gfx/geometry/size_conversions.h"
22
23 namespace cc {
24 namespace {
25
26 static gfx::Rect ViewportInLayerSpace(
27 const gfx::Transform& transform,
28 const gfx::Size& device_viewport) {
29
30 gfx::Transform inverse;
31 if (!transform.GetInverse(&inverse))
32 return gfx::Rect();
33
34 gfx::RectF viewport_in_layer_space = MathUtil::ProjectClippedRect(
35 inverse, gfx::RectF(gfx::Point(0, 0), device_viewport));
36 return ToEnclosingRect(viewport_in_layer_space);
37 }
38
39 class TestablePictureLayerTiling : public PictureLayerTiling {
40 public:
41 using PictureLayerTiling::SetLiveTilesRect;
42 using PictureLayerTiling::TileAt;
43
44 static scoped_ptr<TestablePictureLayerTiling> Create(
45 float contents_scale,
46 scoped_refptr<RasterSource> raster_source,
47 PictureLayerTilingClient* client,
48 const LayerTreeSettings& settings) {
49 return make_scoped_ptr(new TestablePictureLayerTiling(
50 contents_scale, raster_source, client,
51 settings.max_tiles_for_interest_area,
52 settings.skewport_target_time_in_seconds,
53 settings.skewport_extrapolation_limit_in_content_pixels));
54 }
55
56 gfx::Rect live_tiles_rect() const { return live_tiles_rect_; }
57
58 using PictureLayerTiling::ComputeSkewport;
59 using PictureLayerTiling::RemoveTileAt;
60
61 protected:
62 TestablePictureLayerTiling(float contents_scale,
63 scoped_refptr<RasterSource> raster_source,
64 PictureLayerTilingClient* client,
65 size_t max_tiles_for_interest_area,
66 float skewport_target_time,
67 int skewport_extrapolation_limit)
68 : PictureLayerTiling(contents_scale,
69 raster_source,
70 client,
71 max_tiles_for_interest_area,
72 skewport_target_time,
73 skewport_extrapolation_limit) {}
74 };
75
76 class PictureLayerTilingIteratorTest : public testing::Test {
77 public:
78 PictureLayerTilingIteratorTest() {}
79 ~PictureLayerTilingIteratorTest() override {}
80
81 void Initialize(const gfx::Size& tile_size,
82 float contents_scale,
83 const gfx::Size& layer_bounds) {
84 client_.SetTileSize(tile_size);
85 client_.set_tree(PENDING_TREE);
86 scoped_refptr<FakePicturePileImpl> pile =
87 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(layer_bounds);
88 tiling_ = TestablePictureLayerTiling::Create(contents_scale, pile, &client_,
89 LayerTreeSettings());
90 }
91
92 void SetLiveRectAndVerifyTiles(const gfx::Rect& live_tiles_rect) {
93 tiling_->SetLiveTilesRect(live_tiles_rect);
94
95 std::vector<Tile*> tiles = tiling_->AllTilesForTesting();
96 for (std::vector<Tile*>::iterator iter = tiles.begin();
97 iter != tiles.end();
98 ++iter) {
99 EXPECT_TRUE(live_tiles_rect.Intersects((*iter)->content_rect()));
100 }
101 }
102
103 void VerifyTilesExactlyCoverRect(
104 float rect_scale,
105 const gfx::Rect& request_rect,
106 const gfx::Rect& expect_rect) {
107 EXPECT_TRUE(request_rect.Contains(expect_rect));
108
109 // Iterators are not valid if this ratio is too large (i.e. the
110 // tiling is too high-res for a low-res destination rect.) This is an
111 // artifact of snapping geometry to integer coordinates and then mapping
112 // back to floating point texture coordinates.
113 float dest_to_contents_scale = tiling_->contents_scale() / rect_scale;
114 ASSERT_LE(dest_to_contents_scale, 2.0);
115
116 Region remaining = expect_rect;
117 for (PictureLayerTiling::CoverageIterator
118 iter(tiling_.get(), rect_scale, request_rect);
119 iter;
120 ++iter) {
121 // Geometry cannot overlap previous geometry at all
122 gfx::Rect geometry = iter.geometry_rect();
123 EXPECT_TRUE(expect_rect.Contains(geometry));
124 EXPECT_TRUE(remaining.Contains(geometry));
125 remaining.Subtract(geometry);
126
127 // Sanity check that texture coords are within the texture rect.
128 gfx::RectF texture_rect = iter.texture_rect();
129 EXPECT_GE(texture_rect.x(), 0);
130 EXPECT_GE(texture_rect.y(), 0);
131 EXPECT_LE(texture_rect.right(), client_.TileSize().width());
132 EXPECT_LE(texture_rect.bottom(), client_.TileSize().height());
133 }
134
135 // The entire rect must be filled by geometry from the tiling.
136 EXPECT_TRUE(remaining.IsEmpty());
137 }
138
139 void VerifyTilesExactlyCoverRect(float rect_scale, const gfx::Rect& rect) {
140 VerifyTilesExactlyCoverRect(rect_scale, rect, rect);
141 }
142
143 void VerifyTiles(
144 float rect_scale,
145 const gfx::Rect& rect,
146 base::Callback<void(Tile* tile,
147 const gfx::Rect& geometry_rect)> callback) {
148 VerifyTiles(tiling_.get(),
149 rect_scale,
150 rect,
151 callback);
152 }
153
154 void VerifyTiles(
155 PictureLayerTiling* tiling,
156 float rect_scale,
157 const gfx::Rect& rect,
158 base::Callback<void(Tile* tile,
159 const gfx::Rect& geometry_rect)> callback) {
160 Region remaining = rect;
161 for (PictureLayerTiling::CoverageIterator iter(tiling, rect_scale, rect);
162 iter;
163 ++iter) {
164 remaining.Subtract(iter.geometry_rect());
165 callback.Run(*iter, iter.geometry_rect());
166 }
167 EXPECT_TRUE(remaining.IsEmpty());
168 }
169
170 void VerifyTilesCoverNonContainedRect(float rect_scale,
171 const gfx::Rect& dest_rect) {
172 float dest_to_contents_scale = tiling_->contents_scale() / rect_scale;
173 gfx::Rect clamped_rect = gfx::ScaleToEnclosingRect(
174 gfx::Rect(tiling_->tiling_size()), 1.f / dest_to_contents_scale);
175 clamped_rect.Intersect(dest_rect);
176 VerifyTilesExactlyCoverRect(rect_scale, dest_rect, clamped_rect);
177 }
178
179 protected:
180 FakePictureLayerTilingClient client_;
181 scoped_ptr<TestablePictureLayerTiling> tiling_;
182
183 private:
184 DISALLOW_COPY_AND_ASSIGN(PictureLayerTilingIteratorTest);
185 };
186
187 TEST_F(PictureLayerTilingIteratorTest, ResizeDeletesTiles) {
188 // Verifies that a resize with invalidation for newly exposed pixels will
189 // deletes tiles that intersect that invalidation.
190 gfx::Size tile_size(100, 100);
191 gfx::Size original_layer_size(10, 10);
192 Initialize(tile_size, 1.f, original_layer_size);
193 SetLiveRectAndVerifyTiles(gfx::Rect(original_layer_size));
194
195 // Tiling only has one tile, since its total size is less than one.
196 EXPECT_TRUE(tiling_->TileAt(0, 0));
197
198 // Stop creating tiles so that any invalidations are left as holes.
199 gfx::Size new_layer_size(200, 200);
200 scoped_refptr<FakePicturePileImpl> pile =
201 FakePicturePileImpl::CreateEmptyPileWithDefaultTileSize(new_layer_size);
202
203 Region invalidation =
204 SubtractRegions(gfx::Rect(tile_size), gfx::Rect(original_layer_size));
205 tiling_->SetRasterSourceAndResize(pile);
206 EXPECT_TRUE(tiling_->TileAt(0, 0));
207 tiling_->Invalidate(invalidation);
208 EXPECT_FALSE(tiling_->TileAt(0, 0));
209 }
210
211 TEST_F(PictureLayerTilingIteratorTest, CreateMissingTilesStaysInsideLiveRect) {
212 // The tiling has three rows and columns.
213 Initialize(gfx::Size(100, 100), 1.f, gfx::Size(250, 250));
214 EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
215 EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_y());
216
217 // The live tiles rect is at the very edge of the right-most and
218 // bottom-most tiles. Their border pixels would still be inside the live
219 // tiles rect, but the tiles should not exist just for that.
220 int right = tiling_->TilingDataForTesting().TileBounds(2, 2).x();
221 int bottom = tiling_->TilingDataForTesting().TileBounds(2, 2).y();
222
223 SetLiveRectAndVerifyTiles(gfx::Rect(right, bottom));
224 EXPECT_FALSE(tiling_->TileAt(2, 0));
225 EXPECT_FALSE(tiling_->TileAt(2, 1));
226 EXPECT_FALSE(tiling_->TileAt(2, 2));
227 EXPECT_FALSE(tiling_->TileAt(1, 2));
228 EXPECT_FALSE(tiling_->TileAt(0, 2));
229
230 // Verify CreateMissingTilesInLiveTilesRect respects this.
231 tiling_->CreateMissingTilesInLiveTilesRect();
232 EXPECT_FALSE(tiling_->TileAt(2, 0));
233 EXPECT_FALSE(tiling_->TileAt(2, 1));
234 EXPECT_FALSE(tiling_->TileAt(2, 2));
235 EXPECT_FALSE(tiling_->TileAt(1, 2));
236 EXPECT_FALSE(tiling_->TileAt(0, 2));
237 }
238
239 TEST_F(PictureLayerTilingIteratorTest, ResizeTilingOverTileBorders) {
240 // The tiling has four rows and three columns.
241 Initialize(gfx::Size(100, 100), 1.f, gfx::Size(250, 350));
242 EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
243 EXPECT_EQ(4, tiling_->TilingDataForTesting().num_tiles_y());
244
245 // The live tiles rect covers the whole tiling.
246 SetLiveRectAndVerifyTiles(gfx::Rect(250, 350));
247
248 // Tiles in the bottom row and right column exist.
249 EXPECT_TRUE(tiling_->TileAt(2, 0));
250 EXPECT_TRUE(tiling_->TileAt(2, 1));
251 EXPECT_TRUE(tiling_->TileAt(2, 2));
252 EXPECT_TRUE(tiling_->TileAt(2, 3));
253 EXPECT_TRUE(tiling_->TileAt(1, 3));
254 EXPECT_TRUE(tiling_->TileAt(0, 3));
255
256 int right = tiling_->TilingDataForTesting().TileBounds(2, 2).x();
257 int bottom = tiling_->TilingDataForTesting().TileBounds(2, 3).y();
258
259 // Shrink the tiling so that the last tile row/column is entirely in the
260 // border pixels of the interior tiles. That row/column is removed.
261 scoped_refptr<FakePicturePileImpl> pile =
262 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
263 gfx::Size(right + 1, bottom + 1));
264 tiling_->SetRasterSourceAndResize(pile);
265 EXPECT_EQ(2, tiling_->TilingDataForTesting().num_tiles_x());
266 EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_y());
267
268 // The live tiles rect was clamped to the pile size.
269 EXPECT_EQ(gfx::Rect(right + 1, bottom + 1), tiling_->live_tiles_rect());
270
271 // Since the row/column is gone, the tiles should be gone too.
272 EXPECT_FALSE(tiling_->TileAt(2, 0));
273 EXPECT_FALSE(tiling_->TileAt(2, 1));
274 EXPECT_FALSE(tiling_->TileAt(2, 2));
275 EXPECT_FALSE(tiling_->TileAt(2, 3));
276 EXPECT_FALSE(tiling_->TileAt(1, 3));
277 EXPECT_FALSE(tiling_->TileAt(0, 3));
278
279 // Growing outside the current right/bottom tiles border pixels should create
280 // the tiles again, even though the live rect has not changed size.
281 pile = FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
282 gfx::Size(right + 2, bottom + 2));
283 tiling_->SetRasterSourceAndResize(pile);
284 EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
285 EXPECT_EQ(4, tiling_->TilingDataForTesting().num_tiles_y());
286
287 // Not changed.
288 EXPECT_EQ(gfx::Rect(right + 1, bottom + 1), tiling_->live_tiles_rect());
289
290 // The last row/column tiles are inside the live tiles rect.
291 EXPECT_TRUE(gfx::Rect(right + 1, bottom + 1).Intersects(
292 tiling_->TilingDataForTesting().TileBounds(2, 0)));
293 EXPECT_TRUE(gfx::Rect(right + 1, bottom + 1).Intersects(
294 tiling_->TilingDataForTesting().TileBounds(0, 3)));
295
296 EXPECT_TRUE(tiling_->TileAt(2, 0));
297 EXPECT_TRUE(tiling_->TileAt(2, 1));
298 EXPECT_TRUE(tiling_->TileAt(2, 2));
299 EXPECT_TRUE(tiling_->TileAt(2, 3));
300 EXPECT_TRUE(tiling_->TileAt(1, 3));
301 EXPECT_TRUE(tiling_->TileAt(0, 3));
302 }
303
304 TEST_F(PictureLayerTilingIteratorTest, ResizeLiveTileRectOverTileBorders) {
305 // The tiling has three rows and columns.
306 Initialize(gfx::Size(100, 100), 1.f, gfx::Size(250, 350));
307 EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
308 EXPECT_EQ(4, tiling_->TilingDataForTesting().num_tiles_y());
309
310 // The live tiles rect covers the whole tiling.
311 SetLiveRectAndVerifyTiles(gfx::Rect(250, 350));
312
313 // Tiles in the bottom row and right column exist.
314 EXPECT_TRUE(tiling_->TileAt(2, 0));
315 EXPECT_TRUE(tiling_->TileAt(2, 1));
316 EXPECT_TRUE(tiling_->TileAt(2, 2));
317 EXPECT_TRUE(tiling_->TileAt(2, 3));
318 EXPECT_TRUE(tiling_->TileAt(1, 3));
319 EXPECT_TRUE(tiling_->TileAt(0, 3));
320
321 // Shrink the live tiles rect to the very edge of the right-most and
322 // bottom-most tiles. Their border pixels would still be inside the live
323 // tiles rect, but the tiles should not exist just for that.
324 int right = tiling_->TilingDataForTesting().TileBounds(2, 3).x();
325 int bottom = tiling_->TilingDataForTesting().TileBounds(2, 3).y();
326
327 SetLiveRectAndVerifyTiles(gfx::Rect(right, bottom));
328 EXPECT_FALSE(tiling_->TileAt(2, 0));
329 EXPECT_FALSE(tiling_->TileAt(2, 1));
330 EXPECT_FALSE(tiling_->TileAt(2, 2));
331 EXPECT_FALSE(tiling_->TileAt(2, 3));
332 EXPECT_FALSE(tiling_->TileAt(1, 3));
333 EXPECT_FALSE(tiling_->TileAt(0, 3));
334
335 // Including the bottom row and right column again, should create the tiles.
336 SetLiveRectAndVerifyTiles(gfx::Rect(right + 1, bottom + 1));
337 EXPECT_TRUE(tiling_->TileAt(2, 0));
338 EXPECT_TRUE(tiling_->TileAt(2, 1));
339 EXPECT_TRUE(tiling_->TileAt(2, 2));
340 EXPECT_TRUE(tiling_->TileAt(2, 3));
341 EXPECT_TRUE(tiling_->TileAt(1, 2));
342 EXPECT_TRUE(tiling_->TileAt(0, 2));
343
344 // Shrink the live tiles rect to the very edge of the left-most and
345 // top-most tiles. Their border pixels would still be inside the live
346 // tiles rect, but the tiles should not exist just for that.
347 int left = tiling_->TilingDataForTesting().TileBounds(0, 0).right();
348 int top = tiling_->TilingDataForTesting().TileBounds(0, 0).bottom();
349
350 SetLiveRectAndVerifyTiles(gfx::Rect(left, top, 250 - left, 350 - top));
351 EXPECT_FALSE(tiling_->TileAt(0, 3));
352 EXPECT_FALSE(tiling_->TileAt(0, 2));
353 EXPECT_FALSE(tiling_->TileAt(0, 1));
354 EXPECT_FALSE(tiling_->TileAt(0, 0));
355 EXPECT_FALSE(tiling_->TileAt(1, 0));
356 EXPECT_FALSE(tiling_->TileAt(2, 0));
357
358 // Including the top row and left column again, should create the tiles.
359 SetLiveRectAndVerifyTiles(
360 gfx::Rect(left - 1, top - 1, 250 - left, 350 - top));
361 EXPECT_TRUE(tiling_->TileAt(0, 3));
362 EXPECT_TRUE(tiling_->TileAt(0, 2));
363 EXPECT_TRUE(tiling_->TileAt(0, 1));
364 EXPECT_TRUE(tiling_->TileAt(0, 0));
365 EXPECT_TRUE(tiling_->TileAt(1, 0));
366 EXPECT_TRUE(tiling_->TileAt(2, 0));
367 }
368
369 TEST_F(PictureLayerTilingIteratorTest, ResizeLiveTileRectOverSameTiles) {
370 // The tiling has four rows and three columns.
371 Initialize(gfx::Size(100, 100), 1.f, gfx::Size(250, 350));
372 EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
373 EXPECT_EQ(4, tiling_->TilingDataForTesting().num_tiles_y());
374
375 // The live tiles rect covers the whole tiling.
376 SetLiveRectAndVerifyTiles(gfx::Rect(250, 350));
377
378 // All tiles exist.
379 for (int i = 0; i < 3; ++i) {
380 for (int j = 0; j < 4; ++j)
381 EXPECT_TRUE(tiling_->TileAt(i, j)) << i << "," << j;
382 }
383
384 // Shrink the live tiles rect, but still cover all the tiles.
385 SetLiveRectAndVerifyTiles(gfx::Rect(1, 1, 249, 349));
386
387 // All tiles still exist.
388 for (int i = 0; i < 3; ++i) {
389 for (int j = 0; j < 4; ++j)
390 EXPECT_TRUE(tiling_->TileAt(i, j)) << i << "," << j;
391 }
392
393 // Grow the live tiles rect, but still cover all the same tiles.
394 SetLiveRectAndVerifyTiles(gfx::Rect(0, 0, 250, 350));
395
396 // All tiles still exist.
397 for (int i = 0; i < 3; ++i) {
398 for (int j = 0; j < 4; ++j)
399 EXPECT_TRUE(tiling_->TileAt(i, j)) << i << "," << j;
400 }
401 }
402
403 TEST_F(PictureLayerTilingIteratorTest, ResizeOverBorderPixelsDeletesTiles) {
404 // Verifies that a resize with invalidation for newly exposed pixels will
405 // deletes tiles that intersect that invalidation.
406 gfx::Size tile_size(100, 100);
407 gfx::Size original_layer_size(99, 99);
408 Initialize(tile_size, 1.f, original_layer_size);
409 SetLiveRectAndVerifyTiles(gfx::Rect(original_layer_size));
410
411 // Tiling only has one tile, since its total size is less than one.
412 EXPECT_TRUE(tiling_->TileAt(0, 0));
413
414 // Stop creating tiles so that any invalidations are left as holes.
415 scoped_refptr<FakePicturePileImpl> pile =
416 FakePicturePileImpl::CreateEmptyPileWithDefaultTileSize(
417 gfx::Size(200, 200));
418 tiling_->SetRasterSourceAndResize(pile);
419
420 Region invalidation =
421 SubtractRegions(gfx::Rect(tile_size), gfx::Rect(original_layer_size));
422 EXPECT_TRUE(tiling_->TileAt(0, 0));
423 tiling_->Invalidate(invalidation);
424 EXPECT_FALSE(tiling_->TileAt(0, 0));
425
426 // The original tile was the same size after resize, but it would include new
427 // border pixels.
428 EXPECT_EQ(gfx::Rect(original_layer_size),
429 tiling_->TilingDataForTesting().TileBounds(0, 0));
430 }
431
432 TEST_F(PictureLayerTilingIteratorTest, LiveTilesExactlyCoverLiveTileRect) {
433 Initialize(gfx::Size(100, 100), 1.f, gfx::Size(1099, 801));
434 SetLiveRectAndVerifyTiles(gfx::Rect(100, 100));
435 SetLiveRectAndVerifyTiles(gfx::Rect(101, 99));
436 SetLiveRectAndVerifyTiles(gfx::Rect(1099, 1));
437 SetLiveRectAndVerifyTiles(gfx::Rect(1, 801));
438 SetLiveRectAndVerifyTiles(gfx::Rect(1099, 1));
439 SetLiveRectAndVerifyTiles(gfx::Rect(201, 800));
440 }
441
442 TEST_F(PictureLayerTilingIteratorTest, IteratorCoversLayerBoundsNoScale) {
443 Initialize(gfx::Size(100, 100), 1.f, gfx::Size(1099, 801));
444 VerifyTilesExactlyCoverRect(1, gfx::Rect());
445 VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1099, 801));
446 VerifyTilesExactlyCoverRect(1, gfx::Rect(52, 83, 789, 412));
447
448 // With borders, a size of 3x3 = 1 pixel of content.
449 Initialize(gfx::Size(3, 3), 1.f, gfx::Size(10, 10));
450 VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1, 1));
451 VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 2, 2));
452 VerifyTilesExactlyCoverRect(1, gfx::Rect(1, 1, 2, 2));
453 VerifyTilesExactlyCoverRect(1, gfx::Rect(3, 2, 5, 2));
454 }
455
456 TEST_F(PictureLayerTilingIteratorTest, IteratorCoversLayerBoundsTilingScale) {
457 Initialize(gfx::Size(200, 100), 2.0f, gfx::Size(1005, 2010));
458 VerifyTilesExactlyCoverRect(1, gfx::Rect());
459 VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1005, 2010));
460 VerifyTilesExactlyCoverRect(1, gfx::Rect(50, 112, 512, 381));
461
462 Initialize(gfx::Size(3, 3), 2.0f, gfx::Size(10, 10));
463 VerifyTilesExactlyCoverRect(1, gfx::Rect());
464 VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1, 1));
465 VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 2, 2));
466 VerifyTilesExactlyCoverRect(1, gfx::Rect(1, 1, 2, 2));
467 VerifyTilesExactlyCoverRect(1, gfx::Rect(3, 2, 5, 2));
468
469 Initialize(gfx::Size(100, 200), 0.5f, gfx::Size(1005, 2010));
470 VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1005, 2010));
471 VerifyTilesExactlyCoverRect(1, gfx::Rect(50, 112, 512, 381));
472
473 Initialize(gfx::Size(150, 250), 0.37f, gfx::Size(1005, 2010));
474 VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1005, 2010));
475 VerifyTilesExactlyCoverRect(1, gfx::Rect(50, 112, 512, 381));
476
477 Initialize(gfx::Size(312, 123), 0.01f, gfx::Size(1005, 2010));
478 VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1005, 2010));
479 VerifyTilesExactlyCoverRect(1, gfx::Rect(50, 112, 512, 381));
480 }
481
482 TEST_F(PictureLayerTilingIteratorTest, IteratorCoversLayerBoundsBothScale) {
483 Initialize(gfx::Size(50, 50), 4.0f, gfx::Size(800, 600));
484 VerifyTilesExactlyCoverRect(2.0f, gfx::Rect());
485 VerifyTilesExactlyCoverRect(2.0f, gfx::Rect(0, 0, 1600, 1200));
486 VerifyTilesExactlyCoverRect(2.0f, gfx::Rect(512, 365, 253, 182));
487
488 float scale = 6.7f;
489 gfx::Size bounds(800, 600);
490 gfx::Rect full_rect(gfx::ToCeiledSize(gfx::ScaleSize(bounds, scale)));
491 Initialize(gfx::Size(256, 512), 5.2f, bounds);
492 VerifyTilesExactlyCoverRect(scale, full_rect);
493 VerifyTilesExactlyCoverRect(scale, gfx::Rect(2014, 1579, 867, 1033));
494 }
495
496 TEST_F(PictureLayerTilingIteratorTest, IteratorEmptyRect) {
497 Initialize(gfx::Size(100, 100), 1.0f, gfx::Size(800, 600));
498
499 gfx::Rect empty;
500 PictureLayerTiling::CoverageIterator iter(tiling_.get(), 1.0f, empty);
501 EXPECT_FALSE(iter);
502 }
503
504 TEST_F(PictureLayerTilingIteratorTest, NonIntersectingRect) {
505 Initialize(gfx::Size(100, 100), 1.0f, gfx::Size(800, 600));
506 gfx::Rect non_intersecting(1000, 1000, 50, 50);
507 PictureLayerTiling::CoverageIterator iter(tiling_.get(), 1, non_intersecting);
508 EXPECT_FALSE(iter);
509 }
510
511 TEST_F(PictureLayerTilingIteratorTest, LayerEdgeTextureCoordinates) {
512 Initialize(gfx::Size(300, 300), 1.0f, gfx::Size(256, 256));
513 // All of these sizes are 256x256, scaled and ceiled.
514 VerifyTilesExactlyCoverRect(1.0f, gfx::Rect(0, 0, 256, 256));
515 VerifyTilesExactlyCoverRect(0.8f, gfx::Rect(0, 0, 205, 205));
516 VerifyTilesExactlyCoverRect(1.2f, gfx::Rect(0, 0, 308, 308));
517 }
518
519 TEST_F(PictureLayerTilingIteratorTest, NonContainedDestRect) {
520 Initialize(gfx::Size(100, 100), 1.0f, gfx::Size(400, 400));
521
522 // Too large in all dimensions
523 VerifyTilesCoverNonContainedRect(1.0f, gfx::Rect(-1000, -1000, 2000, 2000));
524 VerifyTilesCoverNonContainedRect(1.5f, gfx::Rect(-1000, -1000, 2000, 2000));
525 VerifyTilesCoverNonContainedRect(0.5f, gfx::Rect(-1000, -1000, 2000, 2000));
526
527 // Partially covering content, but too large
528 VerifyTilesCoverNonContainedRect(1.0f, gfx::Rect(-1000, 100, 2000, 100));
529 VerifyTilesCoverNonContainedRect(1.5f, gfx::Rect(-1000, 100, 2000, 100));
530 VerifyTilesCoverNonContainedRect(0.5f, gfx::Rect(-1000, 100, 2000, 100));
531 }
532
533 TEST(PictureLayerTilingTest, SkewportLimits) {
534 FakePictureLayerTilingClient client;
535 client.set_tree(ACTIVE_TREE);
536
537 gfx::Rect viewport(0, 0, 100, 100);
538 gfx::Size layer_bounds(200, 200);
539
540 client.SetTileSize(gfx::Size(100, 100));
541 LayerTreeSettings settings;
542 settings.max_tiles_for_interest_area = 10000;
543 settings.skewport_extrapolation_limit_in_content_pixels = 75;
544
545 scoped_refptr<FakePicturePileImpl> pile =
546 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(layer_bounds);
547 scoped_ptr<TestablePictureLayerTiling> tiling =
548 TestablePictureLayerTiling::Create(1.0f, pile, &client, settings);
549
550 tiling->ComputeTilePriorityRects(viewport, 1.f, 1.0, Occlusion());
551
552 // Move viewport down 50 pixels in 0.5 seconds.
553 gfx::Rect down_skewport =
554 tiling->ComputeSkewport(1.5, gfx::Rect(0, 50, 100, 100));
555
556 EXPECT_EQ(0, down_skewport.x());
557 EXPECT_EQ(50, down_skewport.y());
558 EXPECT_EQ(100, down_skewport.width());
559 EXPECT_EQ(175, down_skewport.height());
560 EXPECT_TRUE(down_skewport.Contains(gfx::Rect(0, 50, 100, 100)));
561
562 // Move viewport down 50 and right 10 pixels.
563 gfx::Rect down_right_skewport =
564 tiling->ComputeSkewport(1.5, gfx::Rect(10, 50, 100, 100));
565
566 EXPECT_EQ(10, down_right_skewport.x());
567 EXPECT_EQ(50, down_right_skewport.y());
568 EXPECT_EQ(120, down_right_skewport.width());
569 EXPECT_EQ(175, down_right_skewport.height());
570 EXPECT_TRUE(down_right_skewport.Contains(gfx::Rect(10, 50, 100, 100)));
571
572 // Move viewport left.
573 gfx::Rect left_skewport =
574 tiling->ComputeSkewport(1.5, gfx::Rect(-50, 0, 100, 100));
575
576 EXPECT_EQ(-125, left_skewport.x());
577 EXPECT_EQ(0, left_skewport.y());
578 EXPECT_EQ(175, left_skewport.width());
579 EXPECT_EQ(100, left_skewport.height());
580 EXPECT_TRUE(left_skewport.Contains(gfx::Rect(-50, 0, 100, 100)));
581
582 // Expand viewport.
583 gfx::Rect expand_skewport =
584 tiling->ComputeSkewport(1.5, gfx::Rect(-50, -50, 200, 200));
585
586 // x and y moved by -75 (-50 - 75 = -125).
587 // right side and bottom side moved by 75 [(350 - 125) - (200 - 50) = 75].
588 EXPECT_EQ(-125, expand_skewport.x());
589 EXPECT_EQ(-125, expand_skewport.y());
590 EXPECT_EQ(350, expand_skewport.width());
591 EXPECT_EQ(350, expand_skewport.height());
592 EXPECT_TRUE(expand_skewport.Contains(gfx::Rect(-50, -50, 200, 200)));
593
594 // Expand the viewport past the limit.
595 gfx::Rect big_expand_skewport =
596 tiling->ComputeSkewport(1.5, gfx::Rect(-500, -500, 1500, 1500));
597
598 EXPECT_EQ(-575, big_expand_skewport.x());
599 EXPECT_EQ(-575, big_expand_skewport.y());
600 EXPECT_EQ(1650, big_expand_skewport.width());
601 EXPECT_EQ(1650, big_expand_skewport.height());
602 EXPECT_TRUE(big_expand_skewport.Contains(gfx::Rect(-500, -500, 1500, 1500)));
603 }
604
605 TEST(PictureLayerTilingTest, ComputeSkewport) {
606 FakePictureLayerTilingClient client;
607
608 gfx::Rect viewport(0, 0, 100, 100);
609 gfx::Size layer_bounds(200, 200);
610
611 client.SetTileSize(gfx::Size(100, 100));
612 client.set_tree(ACTIVE_TREE);
613
614 scoped_refptr<FakePicturePileImpl> pile =
615 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(layer_bounds);
616 scoped_ptr<TestablePictureLayerTiling> tiling =
617 TestablePictureLayerTiling::Create(1.0f, pile, &client,
618 LayerTreeSettings());
619
620 tiling->ComputeTilePriorityRects(viewport, 1.f, 1.0, Occlusion());
621
622 // Move viewport down 50 pixels in 0.5 seconds.
623 gfx::Rect down_skewport =
624 tiling->ComputeSkewport(1.5, gfx::Rect(0, 50, 100, 100));
625
626 EXPECT_EQ(0, down_skewport.x());
627 EXPECT_EQ(50, down_skewport.y());
628 EXPECT_EQ(100, down_skewport.width());
629 EXPECT_EQ(200, down_skewport.height());
630
631 // Shrink viewport.
632 gfx::Rect shrink_skewport =
633 tiling->ComputeSkewport(1.5, gfx::Rect(25, 25, 50, 50));
634
635 EXPECT_EQ(25, shrink_skewport.x());
636 EXPECT_EQ(25, shrink_skewport.y());
637 EXPECT_EQ(50, shrink_skewport.width());
638 EXPECT_EQ(50, shrink_skewport.height());
639
640 // Move viewport down 50 and right 10 pixels.
641 gfx::Rect down_right_skewport =
642 tiling->ComputeSkewport(1.5, gfx::Rect(10, 50, 100, 100));
643
644 EXPECT_EQ(10, down_right_skewport.x());
645 EXPECT_EQ(50, down_right_skewport.y());
646 EXPECT_EQ(120, down_right_skewport.width());
647 EXPECT_EQ(200, down_right_skewport.height());
648
649 // Move viewport left.
650 gfx::Rect left_skewport =
651 tiling->ComputeSkewport(1.5, gfx::Rect(-20, 0, 100, 100));
652
653 EXPECT_EQ(-60, left_skewport.x());
654 EXPECT_EQ(0, left_skewport.y());
655 EXPECT_EQ(140, left_skewport.width());
656 EXPECT_EQ(100, left_skewport.height());
657
658 // Expand viewport in 0.2 seconds.
659 gfx::Rect expanded_skewport =
660 tiling->ComputeSkewport(1.2, gfx::Rect(-5, -5, 110, 110));
661
662 EXPECT_EQ(-30, expanded_skewport.x());
663 EXPECT_EQ(-30, expanded_skewport.y());
664 EXPECT_EQ(160, expanded_skewport.width());
665 EXPECT_EQ(160, expanded_skewport.height());
666 }
667
668 TEST(PictureLayerTilingTest, ViewportDistanceWithScale) {
669 FakePictureLayerTilingClient client;
670
671 gfx::Rect viewport(0, 0, 100, 100);
672 gfx::Size layer_bounds(1500, 1500);
673
674 client.SetTileSize(gfx::Size(10, 10));
675 client.set_tree(ACTIVE_TREE);
676 LayerTreeSettings settings;
677 settings.max_tiles_for_interest_area = 10000;
678
679 // Tiling at 0.25 scale: this should create 47x47 tiles of size 10x10.
680 // The reason is that each tile has a one pixel border, so tile at (1, 2)
681 // for instance begins at (8, 16) pixels. So tile at (46, 46) will begin at
682 // (368, 368) and extend to the end of 1500 * 0.25 = 375 edge of the
683 // tiling.
684 scoped_refptr<FakePicturePileImpl> pile =
685 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(layer_bounds);
686 scoped_ptr<TestablePictureLayerTiling> tiling =
687 TestablePictureLayerTiling::Create(0.25f, pile, &client, settings);
688 gfx::Rect viewport_in_content_space =
689 gfx::ToEnclosedRect(gfx::ScaleRect(viewport, 0.25f));
690
691 tiling->ComputeTilePriorityRects(viewport, 1.f, 1.0, Occlusion());
692 tiling->UpdateAllTilePrioritiesForTesting();
693
694 gfx::Rect soon_rect = viewport;
695 soon_rect.Inset(-312.f, -312.f, -312.f, -312.f);
696 gfx::Rect soon_rect_in_content_space =
697 gfx::ToEnclosedRect(gfx::ScaleRect(soon_rect, 0.25f));
698
699 // Sanity checks.
700 for (int i = 0; i < 47; ++i) {
701 for (int j = 0; j < 47; ++j) {
702 EXPECT_TRUE(tiling->TileAt(i, j)) << "i: " << i << " j: " << j;
703 }
704 }
705 for (int i = 0; i < 47; ++i) {
706 EXPECT_FALSE(tiling->TileAt(i, 47)) << "i: " << i;
707 EXPECT_FALSE(tiling->TileAt(47, i)) << "i: " << i;
708 }
709
710 // No movement in the viewport implies that tiles will either be NOW
711 // or EVENTUALLY, with the exception of tiles that are between 0 and 312
712 // pixels away from the viewport, which will be in the SOON bin.
713 bool have_now = false;
714 bool have_eventually = false;
715 bool have_soon = false;
716 for (int i = 0; i < 47; ++i) {
717 for (int j = 0; j < 47; ++j) {
718 Tile* tile = tiling->TileAt(i, j);
719 TilePriority priority = tile->priority(ACTIVE_TREE);
720
721 gfx::Rect tile_rect = tiling->TilingDataForTesting().TileBounds(i, j);
722 if (viewport_in_content_space.Intersects(tile_rect)) {
723 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
724 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
725 have_now = true;
726 } else if (soon_rect_in_content_space.Intersects(tile_rect)) {
727 EXPECT_EQ(TilePriority::SOON, priority.priority_bin);
728 have_soon = true;
729 } else {
730 EXPECT_EQ(TilePriority::EVENTUALLY, priority.priority_bin);
731 EXPECT_GT(priority.distance_to_visible, 0.f);
732 have_eventually = true;
733 }
734 }
735 }
736
737 EXPECT_TRUE(have_now);
738 EXPECT_TRUE(have_soon);
739 EXPECT_TRUE(have_eventually);
740
741 // Spot check some distances.
742 // Tile at 5, 1 should begin at 41x9 in content space (without borders),
743 // so the distance to a viewport that ends at 25x25 in content space
744 // should be 17 (41 - 25 + 1). In layer space, then that should be
745 // 17 / 0.25 = 68 pixels.
746
747 // We can verify that the content rect (with borders) is one pixel off
748 // 41,9 8x8 on all sides.
749 EXPECT_EQ(tiling->TileAt(5, 1)->content_rect().ToString(), "40,8 10x10");
750
751 TilePriority priority = tiling->TileAt(5, 1)->priority(ACTIVE_TREE);
752 EXPECT_FLOAT_EQ(68.f, priority.distance_to_visible);
753
754 priority = tiling->TileAt(2, 5)->priority(ACTIVE_TREE);
755 EXPECT_FLOAT_EQ(68.f, priority.distance_to_visible);
756
757 priority = tiling->TileAt(3, 4)->priority(ACTIVE_TREE);
758 EXPECT_FLOAT_EQ(40.f, priority.distance_to_visible);
759
760 // Move the viewport down 40 pixels.
761 viewport = gfx::Rect(0, 40, 100, 100);
762 viewport_in_content_space =
763 gfx::ToEnclosedRect(gfx::ScaleRect(viewport, 0.25f));
764 gfx::Rect skewport = tiling->ComputeSkewport(2.0, viewport_in_content_space);
765
766 soon_rect = viewport;
767 soon_rect.Inset(-312.f, -312.f, -312.f, -312.f);
768 soon_rect_in_content_space =
769 gfx::ToEnclosedRect(gfx::ScaleRect(soon_rect, 0.25f));
770
771 EXPECT_EQ(0, skewport.x());
772 EXPECT_EQ(10, skewport.y());
773 EXPECT_EQ(25, skewport.width());
774 EXPECT_EQ(35, skewport.height());
775
776 tiling->ComputeTilePriorityRects(viewport, 1.f, 2.0, Occlusion());
777 tiling->UpdateAllTilePrioritiesForTesting();
778
779 have_now = false;
780 have_eventually = false;
781 have_soon = false;
782
783 // Viewport moved, so we expect to find some NOW tiles, some SOON tiles and
784 // some EVENTUALLY tiles.
785 for (int i = 0; i < 47; ++i) {
786 for (int j = 0; j < 47; ++j) {
787 Tile* tile = tiling->TileAt(i, j);
788 TilePriority priority = tile->priority(ACTIVE_TREE);
789
790 gfx::Rect tile_rect = tiling->TilingDataForTesting().TileBounds(i, j);
791 if (viewport_in_content_space.Intersects(tile_rect)) {
792 EXPECT_EQ(TilePriority::NOW, priority.priority_bin) << "i: " << i
793 << " j: " << j;
794 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible) << "i: " << i
795 << " j: " << j;
796 have_now = true;
797 } else if (skewport.Intersects(tile_rect) ||
798 soon_rect_in_content_space.Intersects(tile_rect)) {
799 EXPECT_EQ(TilePriority::SOON, priority.priority_bin) << "i: " << i
800 << " j: " << j;
801 EXPECT_GT(priority.distance_to_visible, 0.f) << "i: " << i
802 << " j: " << j;
803 have_soon = true;
804 } else {
805 EXPECT_EQ(TilePriority::EVENTUALLY, priority.priority_bin)
806 << "i: " << i << " j: " << j;
807 EXPECT_GT(priority.distance_to_visible, 0.f) << "i: " << i
808 << " j: " << j;
809 have_eventually = true;
810 }
811 }
812 }
813
814 EXPECT_TRUE(have_now);
815 EXPECT_TRUE(have_soon);
816 EXPECT_TRUE(have_eventually);
817
818 priority = tiling->TileAt(5, 1)->priority(ACTIVE_TREE);
819 EXPECT_FLOAT_EQ(68.f, priority.distance_to_visible);
820
821 priority = tiling->TileAt(2, 5)->priority(ACTIVE_TREE);
822 EXPECT_FLOAT_EQ(28.f, priority.distance_to_visible);
823
824 priority = tiling->TileAt(3, 4)->priority(ACTIVE_TREE);
825 EXPECT_FLOAT_EQ(4.f, priority.distance_to_visible);
826
827 // Change the underlying layer scale.
828 tiling->ComputeTilePriorityRects(viewport, 2.0f, 3.0, Occlusion());
829 tiling->UpdateAllTilePrioritiesForTesting();
830
831 priority = tiling->TileAt(5, 1)->priority(ACTIVE_TREE);
832 EXPECT_FLOAT_EQ(136.f, priority.distance_to_visible);
833
834 priority = tiling->TileAt(2, 5)->priority(ACTIVE_TREE);
835 EXPECT_FLOAT_EQ(56.f, priority.distance_to_visible);
836
837 priority = tiling->TileAt(3, 4)->priority(ACTIVE_TREE);
838 EXPECT_FLOAT_EQ(8.f, priority.distance_to_visible);
839
840 // Test additional scales.
841 tiling = TestablePictureLayerTiling::Create(0.2f, pile, &client,
842 LayerTreeSettings());
843 tiling->ComputeTilePriorityRects(viewport, 1.0f, 4.0, Occlusion());
844 tiling->UpdateAllTilePrioritiesForTesting();
845
846 priority = tiling->TileAt(5, 1)->priority(ACTIVE_TREE);
847 EXPECT_FLOAT_EQ(110.f, priority.distance_to_visible);
848
849 priority = tiling->TileAt(2, 5)->priority(ACTIVE_TREE);
850 EXPECT_FLOAT_EQ(70.f, priority.distance_to_visible);
851
852 priority = tiling->TileAt(3, 4)->priority(ACTIVE_TREE);
853 EXPECT_FLOAT_EQ(60.f, priority.distance_to_visible);
854
855 tiling->ComputeTilePriorityRects(viewport, 0.5f, 5.0, Occlusion());
856 tiling->UpdateAllTilePrioritiesForTesting();
857
858 priority = tiling->TileAt(5, 1)->priority(ACTIVE_TREE);
859 EXPECT_FLOAT_EQ(55.f, priority.distance_to_visible);
860
861 priority = tiling->TileAt(2, 5)->priority(ACTIVE_TREE);
862 EXPECT_FLOAT_EQ(35.f, priority.distance_to_visible);
863
864 priority = tiling->TileAt(3, 4)->priority(ACTIVE_TREE);
865 EXPECT_FLOAT_EQ(30.f, priority.distance_to_visible);
866 }
867
868 TEST(PictureLayerTilingTest, ExpandRectEqual) {
869 gfx::Rect in(40, 50, 100, 200);
870 gfx::Rect bounds(-1000, -1000, 10000, 10000);
871 int64 target_area = 100 * 200;
872 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
873 in, target_area, bounds, NULL);
874 EXPECT_EQ(in.ToString(), out.ToString());
875 }
876
877 TEST(PictureLayerTilingTest, ExpandRectSmaller) {
878 gfx::Rect in(40, 50, 100, 200);
879 gfx::Rect bounds(-1000, -1000, 10000, 10000);
880 int64 target_area = 100 * 100;
881 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
882 in, target_area, bounds, NULL);
883 EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y());
884 EXPECT_EQ(out.right() - in.right(), in.x() - out.x());
885 EXPECT_EQ(out.width() - in.width(), out.height() - in.height());
886
887 // |in| represents the visible rect, and |out| represents the eventually rect.
888 // If the eventually rect doesn't contain the visible rect, we will start
889 // losing tiles.
890 EXPECT_TRUE(out.Contains(in));
891 EXPECT_TRUE(bounds.Contains(out));
892 }
893
894 TEST(PictureLayerTilingTest, ExpandRectUnbounded) {
895 gfx::Rect in(40, 50, 100, 200);
896 gfx::Rect bounds(-1000, -1000, 10000, 10000);
897 int64 target_area = 200 * 200;
898 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
899 in, target_area, bounds, NULL);
900 EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y());
901 EXPECT_EQ(out.right() - in.right(), in.x() - out.x());
902 EXPECT_EQ(out.width() - in.width(), out.height() - in.height());
903 EXPECT_NEAR(200 * 200, out.width() * out.height(), 100);
904 EXPECT_TRUE(bounds.Contains(out));
905 }
906
907 TEST(PictureLayerTilingTest, ExpandRectBoundedSmaller) {
908 gfx::Rect in(40, 50, 100, 200);
909 gfx::Rect bounds(50, 60, 40, 30);
910 int64 target_area = 200 * 200;
911 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
912 in, target_area, bounds, NULL);
913 EXPECT_EQ(bounds.ToString(), out.ToString());
914 }
915
916 TEST(PictureLayerTilingTest, ExpandRectBoundedEqual) {
917 gfx::Rect in(40, 50, 100, 200);
918 gfx::Rect bounds = in;
919 int64 target_area = 200 * 200;
920 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
921 in, target_area, bounds, NULL);
922 EXPECT_EQ(bounds.ToString(), out.ToString());
923 }
924
925 TEST(PictureLayerTilingTest, ExpandRectBoundedSmallerStretchVertical) {
926 gfx::Rect in(40, 50, 100, 200);
927 gfx::Rect bounds(45, 0, 90, 300);
928 int64 target_area = 200 * 200;
929 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
930 in, target_area, bounds, NULL);
931 EXPECT_EQ(bounds.ToString(), out.ToString());
932 }
933
934 TEST(PictureLayerTilingTest, ExpandRectBoundedEqualStretchVertical) {
935 gfx::Rect in(40, 50, 100, 200);
936 gfx::Rect bounds(40, 0, 100, 300);
937 int64 target_area = 200 * 200;
938 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
939 in, target_area, bounds, NULL);
940 EXPECT_EQ(bounds.ToString(), out.ToString());
941 }
942
943 TEST(PictureLayerTilingTest, ExpandRectBoundedSmallerStretchHorizontal) {
944 gfx::Rect in(40, 50, 100, 200);
945 gfx::Rect bounds(0, 55, 180, 190);
946 int64 target_area = 200 * 200;
947 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
948 in, target_area, bounds, NULL);
949 EXPECT_EQ(bounds.ToString(), out.ToString());
950 }
951
952 TEST(PictureLayerTilingTest, ExpandRectBoundedEqualStretchHorizontal) {
953 gfx::Rect in(40, 50, 100, 200);
954 gfx::Rect bounds(0, 50, 180, 200);
955 int64 target_area = 200 * 200;
956 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
957 in, target_area, bounds, NULL);
958 EXPECT_EQ(bounds.ToString(), out.ToString());
959 }
960
961 TEST(PictureLayerTilingTest, ExpandRectBoundedLeft) {
962 gfx::Rect in(40, 50, 100, 200);
963 gfx::Rect bounds(20, -1000, 10000, 10000);
964 int64 target_area = 200 * 200;
965 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
966 in, target_area, bounds, NULL);
967 EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y());
968 EXPECT_EQ(out.bottom() - in.bottom(), out.right() - in.right());
969 EXPECT_LE(out.width() * out.height(), target_area);
970 EXPECT_GT(out.width() * out.height(),
971 target_area - out.width() - out.height() * 2);
972 EXPECT_TRUE(bounds.Contains(out));
973 }
974
975 TEST(PictureLayerTilingTest, ExpandRectBoundedRight) {
976 gfx::Rect in(40, 50, 100, 200);
977 gfx::Rect bounds(-1000, -1000, 1000+120, 10000);
978 int64 target_area = 200 * 200;
979 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
980 in, target_area, bounds, NULL);
981 EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y());
982 EXPECT_EQ(out.bottom() - in.bottom(), in.x() - out.x());
983 EXPECT_LE(out.width() * out.height(), target_area);
984 EXPECT_GT(out.width() * out.height(),
985 target_area - out.width() - out.height() * 2);
986 EXPECT_TRUE(bounds.Contains(out));
987 }
988
989 TEST(PictureLayerTilingTest, ExpandRectBoundedTop) {
990 gfx::Rect in(40, 50, 100, 200);
991 gfx::Rect bounds(-1000, 30, 10000, 10000);
992 int64 target_area = 200 * 200;
993 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
994 in, target_area, bounds, NULL);
995 EXPECT_EQ(out.right() - in.right(), in.x() - out.x());
996 EXPECT_EQ(out.right() - in.right(), out.bottom() - in.bottom());
997 EXPECT_LE(out.width() * out.height(), target_area);
998 EXPECT_GT(out.width() * out.height(),
999 target_area - out.width() * 2 - out.height());
1000 EXPECT_TRUE(bounds.Contains(out));
1001 }
1002
1003 TEST(PictureLayerTilingTest, ExpandRectBoundedBottom) {
1004 gfx::Rect in(40, 50, 100, 200);
1005 gfx::Rect bounds(-1000, -1000, 10000, 1000 + 220);
1006 int64 target_area = 200 * 200;
1007 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
1008 in, target_area, bounds, NULL);
1009 EXPECT_EQ(out.right() - in.right(), in.x() - out.x());
1010 EXPECT_EQ(out.right() - in.right(), in.y() - out.y());
1011 EXPECT_LE(out.width() * out.height(), target_area);
1012 EXPECT_GT(out.width() * out.height(),
1013 target_area - out.width() * 2 - out.height());
1014 EXPECT_TRUE(bounds.Contains(out));
1015 }
1016
1017 TEST(PictureLayerTilingTest, ExpandRectSquishedHorizontally) {
1018 gfx::Rect in(40, 50, 100, 200);
1019 gfx::Rect bounds(0, -4000, 100+40+20, 100000);
1020 int64 target_area = 400 * 400;
1021 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
1022 in, target_area, bounds, NULL);
1023 EXPECT_EQ(20, out.right() - in.right());
1024 EXPECT_EQ(40, in.x() - out.x());
1025 EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y());
1026 EXPECT_LE(out.width() * out.height(), target_area);
1027 EXPECT_GT(out.width() * out.height(),
1028 target_area - out.width() * 2);
1029 EXPECT_TRUE(bounds.Contains(out));
1030 }
1031
1032 TEST(PictureLayerTilingTest, ExpandRectSquishedVertically) {
1033 gfx::Rect in(40, 50, 100, 200);
1034 gfx::Rect bounds(-4000, 0, 100000, 200+50+30);
1035 int64 target_area = 400 * 400;
1036 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
1037 in, target_area, bounds, NULL);
1038 EXPECT_EQ(30, out.bottom() - in.bottom());
1039 EXPECT_EQ(50, in.y() - out.y());
1040 EXPECT_EQ(out.right() - in.right(), in.x() - out.x());
1041 EXPECT_LE(out.width() * out.height(), target_area);
1042 EXPECT_GT(out.width() * out.height(),
1043 target_area - out.height() * 2);
1044 EXPECT_TRUE(bounds.Contains(out));
1045 }
1046
1047 TEST(PictureLayerTilingTest, ExpandRectOutOfBoundsFarAway) {
1048 gfx::Rect in(400, 500, 100, 200);
1049 gfx::Rect bounds(0, 0, 10, 10);
1050 int64 target_area = 400 * 400;
1051 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
1052 in, target_area, bounds, NULL);
1053 EXPECT_TRUE(out.IsEmpty());
1054 }
1055
1056 TEST(PictureLayerTilingTest, ExpandRectOutOfBoundsExpandedFullyCover) {
1057 gfx::Rect in(40, 50, 100, 100);
1058 gfx::Rect bounds(0, 0, 10, 10);
1059 int64 target_area = 400 * 400;
1060 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
1061 in, target_area, bounds, NULL);
1062 EXPECT_EQ(bounds.ToString(), out.ToString());
1063 }
1064
1065 TEST(PictureLayerTilingTest, ExpandRectOutOfBoundsExpandedPartlyCover) {
1066 gfx::Rect in(600, 600, 100, 100);
1067 gfx::Rect bounds(0, 0, 500, 500);
1068 int64 target_area = 400 * 400;
1069 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
1070 in, target_area, bounds, NULL);
1071 EXPECT_EQ(bounds.right(), out.right());
1072 EXPECT_EQ(bounds.bottom(), out.bottom());
1073 EXPECT_LE(out.width() * out.height(), target_area);
1074 EXPECT_GT(out.width() * out.height(),
1075 target_area - out.width() - out.height());
1076 EXPECT_TRUE(bounds.Contains(out));
1077 }
1078
1079 TEST(PictureLayerTilingTest, EmptyStartingRect) {
1080 // If a layer has a non-invertible transform, then the starting rect
1081 // for the layer would be empty.
1082 gfx::Rect in(40, 40, 0, 0);
1083 gfx::Rect bounds(0, 0, 10, 10);
1084 int64 target_area = 400 * 400;
1085 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
1086 in, target_area, bounds, NULL);
1087 EXPECT_TRUE(out.IsEmpty());
1088 }
1089
1090 static void TileExists(bool exists, Tile* tile,
1091 const gfx::Rect& geometry_rect) {
1092 EXPECT_EQ(exists, tile != NULL) << geometry_rect.ToString();
1093 }
1094
1095 TEST_F(PictureLayerTilingIteratorTest, TilesExist) {
1096 gfx::Size layer_bounds(1099, 801);
1097 Initialize(gfx::Size(100, 100), 1.f, layer_bounds);
1098 VerifyTilesExactlyCoverRect(1.f, gfx::Rect(layer_bounds));
1099 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
1100
1101 client_.set_tree(ACTIVE_TREE);
1102 tiling_->ComputeTilePriorityRects(
1103 gfx::Rect(layer_bounds), // visible content rect
1104 1.f, // current contents scale
1105 1.0, // current frame time
1106 Occlusion());
1107 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true));
1108
1109 // Make the viewport rect empty. All tiles are killed and become zombies.
1110 tiling_->ComputeTilePriorityRects(gfx::Rect(), // visible content rect
1111 1.f, // current contents scale
1112 2.0, // current frame time
1113 Occlusion());
1114 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
1115 }
1116
1117 TEST_F(PictureLayerTilingIteratorTest, TilesExistGiantViewport) {
1118 gfx::Size layer_bounds(1099, 801);
1119 Initialize(gfx::Size(100, 100), 1.f, layer_bounds);
1120 VerifyTilesExactlyCoverRect(1.f, gfx::Rect(layer_bounds));
1121 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
1122
1123 gfx::Rect giant_rect(-10000000, -10000000, 1000000000, 1000000000);
1124
1125 client_.set_tree(ACTIVE_TREE);
1126 tiling_->ComputeTilePriorityRects(
1127 gfx::Rect(layer_bounds), // visible content rect
1128 1.f, // current contents scale
1129 1.0, // current frame time
1130 Occlusion());
1131 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true));
1132
1133 // If the visible content rect is empty, it should still have live tiles.
1134 tiling_->ComputeTilePriorityRects(giant_rect, // visible content rect
1135 1.f, // current contents scale
1136 2.0, // current frame time
1137 Occlusion());
1138 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true));
1139 }
1140
1141 TEST_F(PictureLayerTilingIteratorTest, TilesExistOutsideViewport) {
1142 gfx::Size layer_bounds(1099, 801);
1143 Initialize(gfx::Size(100, 100), 1.f, layer_bounds);
1144 VerifyTilesExactlyCoverRect(1.f, gfx::Rect(layer_bounds));
1145 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
1146
1147 // This rect does not intersect with the layer, as the layer is outside the
1148 // viewport.
1149 gfx::Rect viewport_rect(1100, 0, 1000, 1000);
1150 EXPECT_FALSE(viewport_rect.Intersects(gfx::Rect(layer_bounds)));
1151
1152 client_.set_tree(ACTIVE_TREE);
1153 tiling_->ComputeTilePriorityRects(viewport_rect, // visible content rect
1154 1.f, // current contents scale
1155 1.0, // current frame time
1156 Occlusion());
1157 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true));
1158 }
1159
1160 static void TilesIntersectingRectExist(const gfx::Rect& rect,
1161 bool intersect_exists,
1162 Tile* tile,
1163 const gfx::Rect& geometry_rect) {
1164 bool intersects = rect.Intersects(geometry_rect);
1165 bool expected_exists = intersect_exists ? intersects : !intersects;
1166 EXPECT_EQ(expected_exists, tile != NULL)
1167 << "Rects intersecting " << rect.ToString() << " should exist. "
1168 << "Current tile rect is " << geometry_rect.ToString();
1169 }
1170
1171 TEST_F(PictureLayerTilingIteratorTest,
1172 TilesExistLargeViewportAndLayerWithSmallVisibleArea) {
1173 gfx::Size layer_bounds(10000, 10000);
1174 client_.SetTileSize(gfx::Size(100, 100));
1175 client_.set_tree(PENDING_TREE);
1176 LayerTreeSettings settings;
1177 settings.max_tiles_for_interest_area = 1;
1178
1179 scoped_refptr<FakePicturePileImpl> pile =
1180 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(layer_bounds);
1181 tiling_ = TestablePictureLayerTiling::Create(1.f, pile, &client_, settings);
1182 VerifyTilesExactlyCoverRect(1.f, gfx::Rect(layer_bounds));
1183 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
1184
1185 gfx::Rect visible_rect(8000, 8000, 50, 50);
1186
1187 client_.set_tree(ACTIVE_TREE);
1188 tiling_->ComputeTilePriorityRects(visible_rect, // visible content rect
1189 1.f, // current contents scale
1190 1.0, // current frame time
1191 Occlusion());
1192 VerifyTiles(1.f,
1193 gfx::Rect(layer_bounds),
1194 base::Bind(&TilesIntersectingRectExist, visible_rect, true));
1195 }
1196
1197 TEST(ComputeTilePriorityRectsTest, VisibleTiles) {
1198 // The TilePriority of visible tiles should have zero distance_to_visible
1199 // and time_to_visible.
1200 FakePictureLayerTilingClient client;
1201
1202 gfx::Size device_viewport(800, 600);
1203 gfx::Size last_layer_bounds(200, 200);
1204 gfx::Size current_layer_bounds(200, 200);
1205 float current_layer_contents_scale = 1.f;
1206 gfx::Transform current_screen_transform;
1207 double current_frame_time_in_seconds = 1.0;
1208
1209 gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
1210 current_screen_transform, device_viewport);
1211
1212 client.SetTileSize(gfx::Size(100, 100));
1213 client.set_tree(ACTIVE_TREE);
1214
1215 scoped_refptr<FakePicturePileImpl> pile =
1216 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1217 current_layer_bounds);
1218 scoped_ptr<TestablePictureLayerTiling> tiling =
1219 TestablePictureLayerTiling::Create(1.0f, pile, &client,
1220 LayerTreeSettings());
1221
1222 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1223 current_layer_contents_scale,
1224 current_frame_time_in_seconds, Occlusion());
1225 tiling->UpdateAllTilePrioritiesForTesting();
1226
1227 ASSERT_TRUE(tiling->TileAt(0, 0));
1228 ASSERT_TRUE(tiling->TileAt(0, 1));
1229 ASSERT_TRUE(tiling->TileAt(1, 0));
1230 ASSERT_TRUE(tiling->TileAt(1, 1));
1231
1232 TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1233 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1234 EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
1235
1236 priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1237 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1238 EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
1239
1240 priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1241 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1242 EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
1243
1244 priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1245 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1246 EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
1247 }
1248
1249 TEST(ComputeTilePriorityRectsTest, OffscreenTiles) {
1250 // The TilePriority of offscreen tiles (without movement) should have nonzero
1251 // distance_to_visible and infinite time_to_visible.
1252 FakePictureLayerTilingClient client;
1253
1254 gfx::Size device_viewport(800, 600);
1255 gfx::Size last_layer_bounds(200, 200);
1256 gfx::Size current_layer_bounds(200, 200);
1257 float current_layer_contents_scale = 1.f;
1258 gfx::Transform last_screen_transform;
1259 gfx::Transform current_screen_transform;
1260 double current_frame_time_in_seconds = 1.0;
1261
1262 current_screen_transform.Translate(850, 0);
1263 last_screen_transform = current_screen_transform;
1264
1265 gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
1266 current_screen_transform, device_viewport);
1267
1268 client.SetTileSize(gfx::Size(100, 100));
1269 client.set_tree(ACTIVE_TREE);
1270
1271 scoped_refptr<FakePicturePileImpl> pile =
1272 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1273 current_layer_bounds);
1274 scoped_ptr<TestablePictureLayerTiling> tiling =
1275 TestablePictureLayerTiling::Create(1.0f, pile, &client,
1276 LayerTreeSettings());
1277
1278 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1279 current_layer_contents_scale,
1280 current_frame_time_in_seconds, Occlusion());
1281 tiling->UpdateAllTilePrioritiesForTesting();
1282
1283 ASSERT_TRUE(tiling->TileAt(0, 0));
1284 ASSERT_TRUE(tiling->TileAt(0, 1));
1285 ASSERT_TRUE(tiling->TileAt(1, 0));
1286 ASSERT_TRUE(tiling->TileAt(1, 1));
1287
1288 TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1289 EXPECT_GT(priority.distance_to_visible, 0.f);
1290 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1291
1292 priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1293 EXPECT_GT(priority.distance_to_visible, 0.f);
1294 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1295
1296 priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1297 EXPECT_GT(priority.distance_to_visible, 0.f);
1298 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1299
1300 priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1301 EXPECT_GT(priority.distance_to_visible, 0.f);
1302 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1303
1304 // Furthermore, in this scenario tiles on the right hand side should have a
1305 // larger distance to visible.
1306 TilePriority left = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1307 TilePriority right = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1308 EXPECT_GT(right.distance_to_visible, left.distance_to_visible);
1309
1310 left = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1311 right = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1312 EXPECT_GT(right.distance_to_visible, left.distance_to_visible);
1313 }
1314
1315 TEST(ComputeTilePriorityRectsTest, PartiallyOffscreenLayer) {
1316 // Sanity check that a layer with some tiles visible and others offscreen has
1317 // correct TilePriorities for each tile.
1318 FakePictureLayerTilingClient client;
1319
1320 gfx::Size device_viewport(800, 600);
1321 gfx::Size last_layer_bounds(200, 200);
1322 gfx::Size current_layer_bounds(200, 200);
1323 float current_layer_contents_scale = 1.f;
1324 gfx::Transform last_screen_transform;
1325 gfx::Transform current_screen_transform;
1326 double current_frame_time_in_seconds = 1.0;
1327
1328 current_screen_transform.Translate(705, 505);
1329 last_screen_transform = current_screen_transform;
1330
1331 gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
1332 current_screen_transform, device_viewport);
1333
1334 client.SetTileSize(gfx::Size(100, 100));
1335 client.set_tree(ACTIVE_TREE);
1336
1337 scoped_refptr<FakePicturePileImpl> pile =
1338 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1339 current_layer_bounds);
1340 scoped_ptr<TestablePictureLayerTiling> tiling =
1341 TestablePictureLayerTiling::Create(1.0f, pile, &client,
1342 LayerTreeSettings());
1343
1344 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1345 current_layer_contents_scale,
1346 current_frame_time_in_seconds, Occlusion());
1347 tiling->UpdateAllTilePrioritiesForTesting();
1348
1349 ASSERT_TRUE(tiling->TileAt(0, 0));
1350 ASSERT_TRUE(tiling->TileAt(0, 1));
1351 ASSERT_TRUE(tiling->TileAt(1, 0));
1352 ASSERT_TRUE(tiling->TileAt(1, 1));
1353
1354 TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1355 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1356 EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
1357
1358 priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1359 EXPECT_GT(priority.distance_to_visible, 0.f);
1360 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1361
1362 priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1363 EXPECT_GT(priority.distance_to_visible, 0.f);
1364 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1365
1366 priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1367 EXPECT_GT(priority.distance_to_visible, 0.f);
1368 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1369 }
1370
1371 TEST(ComputeTilePriorityRectsTest, PartiallyOffscreenRotatedLayer) {
1372 // Each tile of a layer may be affected differently by a transform; Check
1373 // that ComputeTilePriorityRects correctly accounts for the transform between
1374 // layer space and screen space.
1375 FakePictureLayerTilingClient client;
1376
1377 gfx::Size device_viewport(800, 600);
1378 gfx::Size last_layer_bounds(200, 200);
1379 gfx::Size current_layer_bounds(200, 200);
1380 float current_layer_contents_scale = 1.f;
1381 gfx::Transform last_screen_transform;
1382 gfx::Transform current_screen_transform;
1383 double current_frame_time_in_seconds = 1.0;
1384
1385 // A diagonally rotated layer that is partially off the bottom of the screen.
1386 // In this configuration, only the top-left tile would be visible.
1387 current_screen_transform.Translate(600, 750);
1388 current_screen_transform.RotateAboutZAxis(45);
1389 last_screen_transform = current_screen_transform;
1390
1391 gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
1392 current_screen_transform, device_viewport);
1393
1394 client.SetTileSize(gfx::Size(100, 100));
1395 client.set_tree(ACTIVE_TREE);
1396
1397 scoped_refptr<FakePicturePileImpl> pile =
1398 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1399 current_layer_bounds);
1400 scoped_ptr<TestablePictureLayerTiling> tiling =
1401 TestablePictureLayerTiling::Create(1.0f, pile, &client,
1402 LayerTreeSettings());
1403
1404 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1405 current_layer_contents_scale,
1406 current_frame_time_in_seconds, Occlusion());
1407 tiling->UpdateAllTilePrioritiesForTesting();
1408
1409 ASSERT_TRUE(tiling->TileAt(0, 0));
1410 ASSERT_TRUE(tiling->TileAt(0, 1));
1411 ASSERT_TRUE(tiling->TileAt(1, 0));
1412 ASSERT_TRUE(tiling->TileAt(1, 1));
1413
1414 TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1415 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1416 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
1417
1418 priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1419 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1420 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
1421
1422 priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1423 EXPECT_GT(priority.distance_to_visible, 0.f);
1424 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1425
1426 priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1427 EXPECT_GT(priority.distance_to_visible, 0.f);
1428 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1429
1430 // Furthermore, in this scenario the bottom-right tile should have the larger
1431 // distance to visible.
1432 TilePriority top_left = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1433 TilePriority top_right = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1434 TilePriority bottom_right = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1435 EXPECT_GT(top_right.distance_to_visible, top_left.distance_to_visible);
1436
1437 EXPECT_EQ(bottom_right.distance_to_visible, top_right.distance_to_visible);
1438 }
1439
1440 TEST(ComputeTilePriorityRectsTest, PerspectiveLayer) {
1441 // Perspective transforms need to take a different code path.
1442 // This test checks tile priorities of a perspective layer.
1443 FakePictureLayerTilingClient client;
1444
1445 gfx::Size device_viewport(800, 600);
1446 gfx::Rect visible_layer_rect(0, 0, 0, 0); // offscreen.
1447 gfx::Size last_layer_bounds(200, 200);
1448 gfx::Size current_layer_bounds(200, 200);
1449 float current_layer_contents_scale = 1.f;
1450 gfx::Transform last_screen_transform;
1451 gfx::Transform current_screen_transform;
1452 double current_frame_time_in_seconds = 1.0;
1453
1454 // A 3d perspective layer rotated about its Y axis, translated to almost
1455 // fully offscreen. The left side will appear closer (i.e. larger in 2d) than
1456 // the right side, so the top-left tile will technically be closer than the
1457 // top-right.
1458
1459 // Translate layer to offscreen
1460 current_screen_transform.Translate(400.0, 630.0);
1461 // Apply perspective about the center of the layer
1462 current_screen_transform.Translate(100.0, 100.0);
1463 current_screen_transform.ApplyPerspectiveDepth(100.0);
1464 current_screen_transform.RotateAboutYAxis(10.0);
1465 current_screen_transform.Translate(-100.0, -100.0);
1466 last_screen_transform = current_screen_transform;
1467
1468 // Sanity check that this transform wouldn't cause w<0 clipping.
1469 bool clipped;
1470 MathUtil::MapQuad(current_screen_transform,
1471 gfx::QuadF(gfx::RectF(0, 0, 200, 200)),
1472 &clipped);
1473 ASSERT_FALSE(clipped);
1474
1475 gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
1476 current_screen_transform, device_viewport);
1477
1478 client.SetTileSize(gfx::Size(100, 100));
1479 client.set_tree(ACTIVE_TREE);
1480
1481 scoped_refptr<FakePicturePileImpl> pile =
1482 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1483 current_layer_bounds);
1484 scoped_ptr<TestablePictureLayerTiling> tiling =
1485 TestablePictureLayerTiling::Create(1.0f, pile, &client,
1486 LayerTreeSettings());
1487
1488 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1489 current_layer_contents_scale,
1490 current_frame_time_in_seconds, Occlusion());
1491 tiling->UpdateAllTilePrioritiesForTesting();
1492
1493 ASSERT_TRUE(tiling->TileAt(0, 0));
1494 ASSERT_TRUE(tiling->TileAt(0, 1));
1495 ASSERT_TRUE(tiling->TileAt(1, 0));
1496 ASSERT_TRUE(tiling->TileAt(1, 1));
1497
1498 // All tiles will have a positive distance_to_visible
1499 // and an infinite time_to_visible.
1500 TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1501 EXPECT_FLOAT_EQ(priority.distance_to_visible, 0.f);
1502 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
1503
1504 priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1505 EXPECT_GT(priority.distance_to_visible, 0.f);
1506 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1507
1508 priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1509 EXPECT_FLOAT_EQ(priority.distance_to_visible, 0.f);
1510 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
1511
1512 priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1513 EXPECT_GT(priority.distance_to_visible, 0.f);
1514 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1515
1516 // Furthermore, in this scenario the top-left distance_to_visible
1517 // will be smallest, followed by top-right. The bottom layers
1518 // will of course be further than the top layers.
1519 TilePriority top_left = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1520 TilePriority top_right = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1521 TilePriority bottom_left = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1522 TilePriority bottom_right = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1523
1524 EXPECT_GT(bottom_right.distance_to_visible, top_right.distance_to_visible);
1525
1526 EXPECT_GT(bottom_left.distance_to_visible, top_left.distance_to_visible);
1527 }
1528
1529 TEST(ComputeTilePriorityRectsTest, PerspectiveLayerClippedByW) {
1530 // Perspective transforms need to take a different code path.
1531 // This test checks tile priorities of a perspective layer.
1532 FakePictureLayerTilingClient client;
1533
1534 gfx::Size device_viewport(800, 600);
1535 gfx::Size last_layer_bounds(200, 200);
1536 gfx::Size current_layer_bounds(200, 200);
1537 float current_layer_contents_scale = 1.f;
1538 gfx::Transform last_screen_transform;
1539 gfx::Transform current_screen_transform;
1540 double current_frame_time_in_seconds = 1.0;
1541
1542 // A 3d perspective layer rotated about its Y axis, translated to almost
1543 // fully offscreen. The left side will appear closer (i.e. larger in 2d) than
1544 // the right side, so the top-left tile will technically be closer than the
1545 // top-right.
1546
1547 // Translate layer to offscreen
1548 current_screen_transform.Translate(400.0, 970.0);
1549 // Apply perspective and rotation about the center of the layer
1550 current_screen_transform.Translate(100.0, 100.0);
1551 current_screen_transform.ApplyPerspectiveDepth(10.0);
1552 current_screen_transform.RotateAboutYAxis(10.0);
1553 current_screen_transform.Translate(-100.0, -100.0);
1554 last_screen_transform = current_screen_transform;
1555
1556 // Sanity check that this transform does cause w<0 clipping for the left side
1557 // of the layer, but not the right side.
1558 bool clipped;
1559 MathUtil::MapQuad(current_screen_transform,
1560 gfx::QuadF(gfx::RectF(0, 0, 100, 200)),
1561 &clipped);
1562 ASSERT_TRUE(clipped);
1563
1564 MathUtil::MapQuad(current_screen_transform,
1565 gfx::QuadF(gfx::RectF(100, 0, 100, 200)),
1566 &clipped);
1567 ASSERT_FALSE(clipped);
1568
1569 gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
1570 current_screen_transform, device_viewport);
1571
1572 client.SetTileSize(gfx::Size(100, 100));
1573 client.set_tree(ACTIVE_TREE);
1574
1575 scoped_refptr<FakePicturePileImpl> pile =
1576 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1577 current_layer_bounds);
1578 scoped_ptr<TestablePictureLayerTiling> tiling =
1579 TestablePictureLayerTiling::Create(1.0f, pile, &client,
1580 LayerTreeSettings());
1581
1582 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1583 current_layer_contents_scale,
1584 current_frame_time_in_seconds, Occlusion());
1585 tiling->UpdateAllTilePrioritiesForTesting();
1586
1587 ASSERT_TRUE(tiling->TileAt(0, 0));
1588 ASSERT_TRUE(tiling->TileAt(0, 1));
1589 ASSERT_TRUE(tiling->TileAt(1, 0));
1590 ASSERT_TRUE(tiling->TileAt(1, 1));
1591
1592 // Left-side tiles will be clipped by the transform, so we have to assume
1593 // they are visible just in case.
1594 TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1595 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1596 EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
1597
1598 priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1599 EXPECT_GT(priority.distance_to_visible, 0.f);
1600 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1601
1602 // Right-side tiles will have a positive distance_to_visible
1603 // and an infinite time_to_visible.
1604 priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1605 EXPECT_FLOAT_EQ(priority.distance_to_visible, 0.f);
1606 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
1607
1608 priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1609 EXPECT_GT(priority.distance_to_visible, 0.f);
1610 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1611 }
1612
1613 TEST(ComputeTilePriorityRectsTest, BasicMotion) {
1614 // Test that time_to_visible is computed correctly when
1615 // there is some motion.
1616 FakePictureLayerTilingClient client;
1617
1618 gfx::Size device_viewport(800, 600);
1619 gfx::Rect visible_layer_rect(0, 0, 0, 0);
1620 gfx::Size last_layer_bounds(200, 200);
1621 gfx::Size current_layer_bounds(200, 200);
1622 float last_layer_contents_scale = 1.f;
1623 float current_layer_contents_scale = 1.f;
1624 gfx::Transform last_screen_transform;
1625 gfx::Transform current_screen_transform;
1626 double last_frame_time_in_seconds = 1.0;
1627 double current_frame_time_in_seconds = 2.0;
1628
1629 // Offscreen layer is coming closer to viewport at 1000 pixels per second.
1630 current_screen_transform.Translate(1800, 0);
1631 last_screen_transform.Translate(2800, 0);
1632
1633 gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
1634 current_screen_transform, device_viewport);
1635
1636 client.SetTileSize(gfx::Size(100, 100));
1637 client.set_tree(ACTIVE_TREE);
1638 LayerTreeSettings settings;
1639 settings.max_tiles_for_interest_area = 10000;
1640
1641 scoped_refptr<FakePicturePileImpl> pile =
1642 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1643 current_layer_bounds);
1644 scoped_ptr<TestablePictureLayerTiling> tiling =
1645 TestablePictureLayerTiling::Create(1.0f, pile, &client, settings);
1646
1647 // previous ("last") frame
1648 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1649 last_layer_contents_scale,
1650 last_frame_time_in_seconds, Occlusion());
1651
1652 // current frame
1653 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1654 current_layer_contents_scale,
1655 current_frame_time_in_seconds, Occlusion());
1656 tiling->UpdateAllTilePrioritiesForTesting();
1657
1658 ASSERT_TRUE(tiling->TileAt(0, 0));
1659 ASSERT_TRUE(tiling->TileAt(0, 1));
1660 ASSERT_TRUE(tiling->TileAt(1, 0));
1661 ASSERT_TRUE(tiling->TileAt(1, 1));
1662
1663 TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1664 EXPECT_GT(priority.distance_to_visible, 0.f);
1665 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1666
1667 priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1668 EXPECT_GT(priority.distance_to_visible, 0.f);
1669 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1670
1671 // time_to_visible for the right hand side layers needs an extra 0.099
1672 // seconds because this tile is 99 pixels further away.
1673 priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1674 EXPECT_GT(priority.distance_to_visible, 0.f);
1675 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1676
1677 priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1678 EXPECT_GT(priority.distance_to_visible, 0.f);
1679 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1680 }
1681
1682 TEST(ComputeTilePriorityRectsTest, RotationMotion) {
1683 // Each tile of a layer may be affected differently by a transform; Check
1684 // that ComputeTilePriorityRects correctly accounts for the transform between
1685 // layer space and screen space.
1686
1687 FakePictureLayerTilingClient client;
1688 scoped_ptr<TestablePictureLayerTiling> tiling;
1689
1690 gfx::Size device_viewport(800, 600);
1691 gfx::Rect visible_layer_rect(0, 0, 0, 0); // offscren.
1692 gfx::Size last_layer_bounds(200, 200);
1693 gfx::Size current_layer_bounds(200, 200);
1694 float last_layer_contents_scale = 1.f;
1695 float current_layer_contents_scale = 1.f;
1696 gfx::Transform last_screen_transform;
1697 gfx::Transform current_screen_transform;
1698 double last_frame_time_in_seconds = 1.0;
1699 double current_frame_time_in_seconds = 2.0;
1700
1701 // Rotation motion is set up specifically so that:
1702 // - rotation occurs about the center of the layer
1703 // - the top-left tile becomes visible on rotation
1704 // - the top-right tile will have an infinite time_to_visible
1705 // because it is rotating away from viewport.
1706 // - bottom-left layer will have a positive non-zero time_to_visible
1707 // because it is rotating toward the viewport.
1708 current_screen_transform.Translate(400, 550);
1709 current_screen_transform.RotateAboutZAxis(45);
1710
1711 last_screen_transform.Translate(400, 550);
1712
1713 gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
1714 current_screen_transform, device_viewport);
1715
1716 client.SetTileSize(gfx::Size(100, 100));
1717 client.set_tree(ACTIVE_TREE);
1718
1719 scoped_refptr<FakePicturePileImpl> pile =
1720 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1721 current_layer_bounds);
1722 tiling = TestablePictureLayerTiling::Create(1.0f, pile, &client,
1723 LayerTreeSettings());
1724
1725 // previous ("last") frame
1726 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1727 last_layer_contents_scale,
1728 last_frame_time_in_seconds, Occlusion());
1729
1730 // current frame
1731 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1732 current_layer_contents_scale,
1733 current_frame_time_in_seconds, Occlusion());
1734 tiling->UpdateAllTilePrioritiesForTesting();
1735
1736 ASSERT_TRUE(tiling->TileAt(0, 0));
1737 ASSERT_TRUE(tiling->TileAt(0, 1));
1738 ASSERT_TRUE(tiling->TileAt(1, 0));
1739 ASSERT_TRUE(tiling->TileAt(1, 1));
1740
1741 TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1742 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1743 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
1744
1745 priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1746 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1747 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
1748
1749 priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1750 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1751 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
1752 }
1753
1754 TEST(PictureLayerTilingTest, RecycledTilesCleared) {
1755 // This test performs the following:
1756 // Setup:
1757 // - Two tilings, one active one recycled with all tiles shared.
1758 // Procedure:
1759 // - Viewport moves somewhere far away and active tiling clears tiles.
1760 // - Viewport moves back and a new active tiling tile is created.
1761 // Result:
1762 // - Recycle tiling does _not_ have the tile in the same location (thus it
1763 // will be shared next time a pending tiling is created).
1764
1765 FakePictureLayerTilingClient active_client;
1766
1767 active_client.SetTileSize(gfx::Size(100, 100));
1768 active_client.set_tree(ACTIVE_TREE);
1769 LayerTreeSettings settings;
1770 settings.max_tiles_for_interest_area = 10;
1771
1772 scoped_refptr<FakePicturePileImpl> pile =
1773 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1774 gfx::Size(10000, 10000));
1775 scoped_ptr<TestablePictureLayerTiling> active_tiling =
1776 TestablePictureLayerTiling::Create(1.0f, pile, &active_client, settings);
1777 // Create all tiles on this tiling.
1778 active_tiling->ComputeTilePriorityRects(gfx::Rect(0, 0, 100, 100), 1.0f, 1.0f,
1779 Occlusion());
1780
1781 FakePictureLayerTilingClient recycle_client;
1782 recycle_client.SetTileSize(gfx::Size(100, 100));
1783 recycle_client.set_tree(PENDING_TREE);
1784 recycle_client.set_twin_tiling(active_tiling.get());
1785
1786 pile = FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1787 gfx::Size(10000, 10000));
1788 scoped_ptr<TestablePictureLayerTiling> recycle_tiling =
1789 TestablePictureLayerTiling::Create(1.0f, pile, &recycle_client, settings);
1790
1791 // Create all tiles on the second tiling. All tiles should be shared.
1792 recycle_tiling->ComputeTilePriorityRects(gfx::Rect(0, 0, 100, 100), 1.0f,
1793 1.0f, Occlusion());
1794
1795 // Set the second tiling as recycled.
1796 active_client.set_twin_tiling(NULL);
1797 active_client.set_recycled_twin_tiling(recycle_tiling.get());
1798 recycle_client.set_twin_tiling(NULL);
1799
1800 // Verify that tiles exist and are shared.
1801 EXPECT_TRUE(active_tiling->TileAt(0, 0));
1802 EXPECT_TRUE(recycle_tiling->TileAt(0, 0));
1803 EXPECT_EQ(active_tiling->TileAt(0, 0), recycle_tiling->TileAt(0, 0));
1804
1805 // Move the viewport far away from the (0, 0) tile.
1806 active_tiling->ComputeTilePriorityRects(gfx::Rect(9000, 9000, 100, 100), 1.0f,
1807 2.0, Occlusion());
1808 // Ensure the tile was deleted on both tilings.
1809 EXPECT_FALSE(active_tiling->TileAt(0, 0));
1810 EXPECT_FALSE(recycle_tiling->TileAt(0, 0));
1811
1812 // Move the viewport back to (0, 0) tile.
1813 active_tiling->ComputeTilePriorityRects(gfx::Rect(0, 0, 100, 100), 1.0f, 3.0,
1814 Occlusion());
1815
1816 // Ensure that we now have a tile here on both tilings again.
1817 EXPECT_TRUE(active_tiling->TileAt(0, 0));
1818 EXPECT_TRUE(recycle_tiling->TileAt(0, 0));
1819 }
1820
1821 TEST(PictureLayerTilingTest, RecycledTilesClearedOnReset) {
1822 FakePictureLayerTilingClient active_client;
1823 active_client.SetTileSize(gfx::Size(100, 100));
1824 active_client.set_tree(ACTIVE_TREE);
1825
1826 scoped_refptr<FakePicturePileImpl> pile =
1827 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1828 gfx::Size(100, 100));
1829 scoped_ptr<TestablePictureLayerTiling> active_tiling =
1830 TestablePictureLayerTiling::Create(1.0f, pile, &active_client,
1831 LayerTreeSettings());
1832 // Create all tiles on this tiling.
1833 active_tiling->ComputeTilePriorityRects(gfx::Rect(0, 0, 100, 100), 1.0f, 1.0f,
1834 Occlusion());
1835
1836 FakePictureLayerTilingClient recycle_client;
1837 recycle_client.SetTileSize(gfx::Size(100, 100));
1838 recycle_client.set_tree(PENDING_TREE);
1839 recycle_client.set_twin_tiling(active_tiling.get());
1840
1841 LayerTreeSettings settings;
1842 settings.max_tiles_for_interest_area = 10;
1843
1844 pile = FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1845 gfx::Size(100, 100));
1846 scoped_ptr<TestablePictureLayerTiling> recycle_tiling =
1847 TestablePictureLayerTiling::Create(1.0f, pile, &recycle_client, settings);
1848
1849 // Create all tiles on the recycle tiling. All tiles should be shared.
1850 recycle_tiling->ComputeTilePriorityRects(gfx::Rect(0, 0, 100, 100), 1.0f,
1851 1.0f, Occlusion());
1852
1853 // Set the second tiling as recycled.
1854 active_client.set_twin_tiling(NULL);
1855 active_client.set_recycled_twin_tiling(recycle_tiling.get());
1856 recycle_client.set_twin_tiling(NULL);
1857
1858 // Verify that tiles exist and are shared.
1859 EXPECT_TRUE(active_tiling->TileAt(0, 0));
1860 EXPECT_TRUE(recycle_tiling->TileAt(0, 0));
1861 EXPECT_EQ(active_tiling->TileAt(0, 0), recycle_tiling->TileAt(0, 0));
1862
1863 // Reset the active tiling. The recycle tiles should be released too.
1864 active_tiling->Reset();
1865 EXPECT_FALSE(active_tiling->TileAt(0, 0));
1866 EXPECT_FALSE(recycle_tiling->TileAt(0, 0));
1867 }
1868
1869 TEST_F(PictureLayerTilingIteratorTest, ResizeTilesAndUpdateToCurrent) {
1870 // The tiling has four rows and three columns.
1871 Initialize(gfx::Size(150, 100), 1.f, gfx::Size(250, 150));
1872 tiling_->CreateAllTilesForTesting();
1873 EXPECT_EQ(150, tiling_->TilingDataForTesting().max_texture_size().width());
1874 EXPECT_EQ(100, tiling_->TilingDataForTesting().max_texture_size().height());
1875 EXPECT_EQ(4u, tiling_->AllRefTilesForTesting().size());
1876
1877 client_.SetTileSize(gfx::Size(250, 200));
1878 client_.set_tree(PENDING_TREE);
1879
1880 // Tile size in the tiling should still be 150x100.
1881 EXPECT_EQ(150, tiling_->TilingDataForTesting().max_texture_size().width());
1882 EXPECT_EQ(100, tiling_->TilingDataForTesting().max_texture_size().height());
1883
1884 // The layer's size isn't changed, but the tile size was.
1885 scoped_refptr<FakePicturePileImpl> pile =
1886 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1887 gfx::Size(250, 150));
1888 tiling_->SetRasterSourceAndResize(pile);
1889
1890 // Tile size in the tiling should be resized to 250x200.
1891 EXPECT_EQ(250, tiling_->TilingDataForTesting().max_texture_size().width());
1892 EXPECT_EQ(200, tiling_->TilingDataForTesting().max_texture_size().height());
1893 EXPECT_EQ(0u, tiling_->AllRefTilesForTesting().size());
1894 }
1895
1896 } // namespace
1897 } // namespace cc