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ozone: evdev: Sync caps lock LED state to evdev
[chromium-blink-merge.git] / cc / resources / picture_layer_tiling_unittest.cc
blobd4a877862164b4fa6a3ddd6bcabc04d3a380987c
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 // Compute the soon border.
695 float inset = PictureLayerTiling::CalculateSoonBorderDistance(
696 viewport_in_content_space, 1.0f / 0.25f);
697 gfx::Rect soon_rect_in_content_space = viewport_in_content_space;
698 soon_rect_in_content_space.Inset(-inset, -inset);
699
700 // Sanity checks.
701 for (int i = 0; i < 47; ++i) {
702 for (int j = 0; j < 47; ++j) {
703 EXPECT_TRUE(tiling->TileAt(i, j)) << "i: " << i << " j: " << j;
704 }
705 }
706 for (int i = 0; i < 47; ++i) {
707 EXPECT_FALSE(tiling->TileAt(i, 47)) << "i: " << i;
708 EXPECT_FALSE(tiling->TileAt(47, i)) << "i: " << i;
709 }
710
711 // No movement in the viewport implies that tiles will either be NOW
712 // or EVENTUALLY, with the exception of tiles that are between 0 and 312
713 // pixels away from the viewport, which will be in the SOON bin.
714 bool have_now = false;
715 bool have_eventually = false;
716 bool have_soon = false;
717 for (int i = 0; i < 47; ++i) {
718 for (int j = 0; j < 47; ++j) {
719 Tile* tile = tiling->TileAt(i, j);
720 TilePriority priority = tile->priority(ACTIVE_TREE);
721
722 gfx::Rect tile_rect = tiling->TilingDataForTesting().TileBounds(i, j);
723 if (viewport_in_content_space.Intersects(tile_rect)) {
724 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
725 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
726 have_now = true;
727 } else if (soon_rect_in_content_space.Intersects(tile_rect)) {
728 EXPECT_EQ(TilePriority::SOON, priority.priority_bin);
729 have_soon = true;
730 } else {
731 EXPECT_EQ(TilePriority::EVENTUALLY, priority.priority_bin);
732 EXPECT_GT(priority.distance_to_visible, 0.f);
733 have_eventually = true;
734 }
735 }
736 }
737
738 EXPECT_TRUE(have_now);
739 EXPECT_TRUE(have_soon);
740 EXPECT_TRUE(have_eventually);
741
742 // Spot check some distances.
743 // Tile at 5, 1 should begin at 41x9 in content space (without borders),
744 // so the distance to a viewport that ends at 25x25 in content space
745 // should be 17 (41 - 25 + 1). In layer space, then that should be
746 // 17 / 0.25 = 68 pixels.
747
748 // We can verify that the content rect (with borders) is one pixel off
749 // 41,9 8x8 on all sides.
750 EXPECT_EQ(tiling->TileAt(5, 1)->content_rect().ToString(), "40,8 10x10");
751
752 TilePriority priority = tiling->TileAt(5, 1)->priority(ACTIVE_TREE);
753 EXPECT_FLOAT_EQ(68.f, priority.distance_to_visible);
754
755 priority = tiling->TileAt(2, 5)->priority(ACTIVE_TREE);
756 EXPECT_FLOAT_EQ(68.f, priority.distance_to_visible);
757
758 priority = tiling->TileAt(3, 4)->priority(ACTIVE_TREE);
759 EXPECT_FLOAT_EQ(40.f, priority.distance_to_visible);
760
761 // Move the viewport down 40 pixels.
762 viewport = gfx::Rect(0, 40, 100, 100);
763 viewport_in_content_space =
764 gfx::ToEnclosedRect(gfx::ScaleRect(viewport, 0.25f));
765 gfx::Rect skewport = tiling->ComputeSkewport(2.0, viewport_in_content_space);
766
767 // Compute the soon border.
768 inset = PictureLayerTiling::CalculateSoonBorderDistance(
769 viewport_in_content_space, 1.0f / 0.25f);
770 soon_rect_in_content_space = viewport_in_content_space;
771 soon_rect_in_content_space.Inset(-inset, -inset);
772
773 EXPECT_EQ(0, skewport.x());
774 EXPECT_EQ(10, skewport.y());
775 EXPECT_EQ(25, skewport.width());
776 EXPECT_EQ(35, skewport.height());
777
778 tiling->ComputeTilePriorityRects(viewport, 1.f, 2.0, Occlusion());
779 tiling->UpdateAllTilePrioritiesForTesting();
780
781 have_now = false;
782 have_eventually = false;
783 have_soon = false;
784
785 // Viewport moved, so we expect to find some NOW tiles, some SOON tiles and
786 // some EVENTUALLY tiles.
787 for (int i = 0; i < 47; ++i) {
788 for (int j = 0; j < 47; ++j) {
789 Tile* tile = tiling->TileAt(i, j);
790 TilePriority priority = tile->priority(ACTIVE_TREE);
791
792 gfx::Rect tile_rect = tiling->TilingDataForTesting().TileBounds(i, j);
793 if (viewport_in_content_space.Intersects(tile_rect)) {
794 EXPECT_EQ(TilePriority::NOW, priority.priority_bin) << "i: " << i
795 << " j: " << j;
796 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible) << "i: " << i
797 << " j: " << j;
798 have_now = true;
799 } else if (skewport.Intersects(tile_rect) ||
800 soon_rect_in_content_space.Intersects(tile_rect)) {
801 EXPECT_EQ(TilePriority::SOON, priority.priority_bin) << "i: " << i
802 << " j: " << j;
803 EXPECT_GT(priority.distance_to_visible, 0.f) << "i: " << i
804 << " j: " << j;
805 have_soon = true;
806 } else {
807 EXPECT_EQ(TilePriority::EVENTUALLY, priority.priority_bin)
808 << "i: " << i << " j: " << j;
809 EXPECT_GT(priority.distance_to_visible, 0.f) << "i: " << i
810 << " j: " << j;
811 have_eventually = true;
812 }
813 }
814 }
815
816 EXPECT_TRUE(have_now);
817 EXPECT_TRUE(have_soon);
818 EXPECT_TRUE(have_eventually);
819
820 priority = tiling->TileAt(5, 1)->priority(ACTIVE_TREE);
821 EXPECT_FLOAT_EQ(68.f, priority.distance_to_visible);
822
823 priority = tiling->TileAt(2, 5)->priority(ACTIVE_TREE);
824 EXPECT_FLOAT_EQ(28.f, priority.distance_to_visible);
825
826 priority = tiling->TileAt(3, 4)->priority(ACTIVE_TREE);
827 EXPECT_FLOAT_EQ(4.f, priority.distance_to_visible);
828
829 // Change the underlying layer scale.
830 tiling->ComputeTilePriorityRects(viewport, 2.0f, 3.0, Occlusion());
831 tiling->UpdateAllTilePrioritiesForTesting();
832
833 priority = tiling->TileAt(5, 1)->priority(ACTIVE_TREE);
834 EXPECT_FLOAT_EQ(136.f, priority.distance_to_visible);
835
836 priority = tiling->TileAt(2, 5)->priority(ACTIVE_TREE);
837 EXPECT_FLOAT_EQ(56.f, priority.distance_to_visible);
838
839 priority = tiling->TileAt(3, 4)->priority(ACTIVE_TREE);
840 EXPECT_FLOAT_EQ(8.f, priority.distance_to_visible);
841
842 // Test additional scales.
843 tiling = TestablePictureLayerTiling::Create(0.2f, pile, &client,
844 LayerTreeSettings());
845 tiling->ComputeTilePriorityRects(viewport, 1.0f, 4.0, Occlusion());
846 tiling->UpdateAllTilePrioritiesForTesting();
847
848 priority = tiling->TileAt(5, 1)->priority(ACTIVE_TREE);
849 EXPECT_FLOAT_EQ(110.f, priority.distance_to_visible);
850
851 priority = tiling->TileAt(2, 5)->priority(ACTIVE_TREE);
852 EXPECT_FLOAT_EQ(70.f, priority.distance_to_visible);
853
854 priority = tiling->TileAt(3, 4)->priority(ACTIVE_TREE);
855 EXPECT_FLOAT_EQ(60.f, priority.distance_to_visible);
856
857 tiling->ComputeTilePriorityRects(viewport, 0.5f, 5.0, Occlusion());
858 tiling->UpdateAllTilePrioritiesForTesting();
859
860 priority = tiling->TileAt(5, 1)->priority(ACTIVE_TREE);
861 EXPECT_FLOAT_EQ(55.f, priority.distance_to_visible);
862
863 priority = tiling->TileAt(2, 5)->priority(ACTIVE_TREE);
864 EXPECT_FLOAT_EQ(35.f, priority.distance_to_visible);
865
866 priority = tiling->TileAt(3, 4)->priority(ACTIVE_TREE);
867 EXPECT_FLOAT_EQ(30.f, priority.distance_to_visible);
868 }
869
870 TEST(PictureLayerTilingTest, ExpandRectEqual) {
871 gfx::Rect in(40, 50, 100, 200);
872 gfx::Rect bounds(-1000, -1000, 10000, 10000);
873 int64 target_area = 100 * 200;
874 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
875 in, target_area, bounds, NULL);
876 EXPECT_EQ(in.ToString(), out.ToString());
877 }
878
879 TEST(PictureLayerTilingTest, ExpandRectSmaller) {
880 gfx::Rect in(40, 50, 100, 200);
881 gfx::Rect bounds(-1000, -1000, 10000, 10000);
882 int64 target_area = 100 * 100;
883 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
884 in, target_area, bounds, NULL);
885 EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y());
886 EXPECT_EQ(out.right() - in.right(), in.x() - out.x());
887 EXPECT_EQ(out.width() - in.width(), out.height() - in.height());
888
889 // |in| represents the visible rect, and |out| represents the eventually rect.
890 // If the eventually rect doesn't contain the visible rect, we will start
891 // losing tiles.
892 EXPECT_TRUE(out.Contains(in));
893 EXPECT_TRUE(bounds.Contains(out));
894 }
895
896 TEST(PictureLayerTilingTest, ExpandRectUnbounded) {
897 gfx::Rect in(40, 50, 100, 200);
898 gfx::Rect bounds(-1000, -1000, 10000, 10000);
899 int64 target_area = 200 * 200;
900 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
901 in, target_area, bounds, NULL);
902 EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y());
903 EXPECT_EQ(out.right() - in.right(), in.x() - out.x());
904 EXPECT_EQ(out.width() - in.width(), out.height() - in.height());
905 EXPECT_NEAR(200 * 200, out.width() * out.height(), 100);
906 EXPECT_TRUE(bounds.Contains(out));
907 }
908
909 TEST(PictureLayerTilingTest, ExpandRectBoundedSmaller) {
910 gfx::Rect in(40, 50, 100, 200);
911 gfx::Rect bounds(50, 60, 40, 30);
912 int64 target_area = 200 * 200;
913 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
914 in, target_area, bounds, NULL);
915 EXPECT_EQ(bounds.ToString(), out.ToString());
916 }
917
918 TEST(PictureLayerTilingTest, ExpandRectBoundedEqual) {
919 gfx::Rect in(40, 50, 100, 200);
920 gfx::Rect bounds = in;
921 int64 target_area = 200 * 200;
922 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
923 in, target_area, bounds, NULL);
924 EXPECT_EQ(bounds.ToString(), out.ToString());
925 }
926
927 TEST(PictureLayerTilingTest, ExpandRectBoundedSmallerStretchVertical) {
928 gfx::Rect in(40, 50, 100, 200);
929 gfx::Rect bounds(45, 0, 90, 300);
930 int64 target_area = 200 * 200;
931 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
932 in, target_area, bounds, NULL);
933 EXPECT_EQ(bounds.ToString(), out.ToString());
934 }
935
936 TEST(PictureLayerTilingTest, ExpandRectBoundedEqualStretchVertical) {
937 gfx::Rect in(40, 50, 100, 200);
938 gfx::Rect bounds(40, 0, 100, 300);
939 int64 target_area = 200 * 200;
940 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
941 in, target_area, bounds, NULL);
942 EXPECT_EQ(bounds.ToString(), out.ToString());
943 }
944
945 TEST(PictureLayerTilingTest, ExpandRectBoundedSmallerStretchHorizontal) {
946 gfx::Rect in(40, 50, 100, 200);
947 gfx::Rect bounds(0, 55, 180, 190);
948 int64 target_area = 200 * 200;
949 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
950 in, target_area, bounds, NULL);
951 EXPECT_EQ(bounds.ToString(), out.ToString());
952 }
953
954 TEST(PictureLayerTilingTest, ExpandRectBoundedEqualStretchHorizontal) {
955 gfx::Rect in(40, 50, 100, 200);
956 gfx::Rect bounds(0, 50, 180, 200);
957 int64 target_area = 200 * 200;
958 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
959 in, target_area, bounds, NULL);
960 EXPECT_EQ(bounds.ToString(), out.ToString());
961 }
962
963 TEST(PictureLayerTilingTest, ExpandRectBoundedLeft) {
964 gfx::Rect in(40, 50, 100, 200);
965 gfx::Rect bounds(20, -1000, 10000, 10000);
966 int64 target_area = 200 * 200;
967 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
968 in, target_area, bounds, NULL);
969 EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y());
970 EXPECT_EQ(out.bottom() - in.bottom(), out.right() - in.right());
971 EXPECT_LE(out.width() * out.height(), target_area);
972 EXPECT_GT(out.width() * out.height(),
973 target_area - out.width() - out.height() * 2);
974 EXPECT_TRUE(bounds.Contains(out));
975 }
976
977 TEST(PictureLayerTilingTest, ExpandRectBoundedRight) {
978 gfx::Rect in(40, 50, 100, 200);
979 gfx::Rect bounds(-1000, -1000, 1000+120, 10000);
980 int64 target_area = 200 * 200;
981 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
982 in, target_area, bounds, NULL);
983 EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y());
984 EXPECT_EQ(out.bottom() - in.bottom(), in.x() - out.x());
985 EXPECT_LE(out.width() * out.height(), target_area);
986 EXPECT_GT(out.width() * out.height(),
987 target_area - out.width() - out.height() * 2);
988 EXPECT_TRUE(bounds.Contains(out));
989 }
990
991 TEST(PictureLayerTilingTest, ExpandRectBoundedTop) {
992 gfx::Rect in(40, 50, 100, 200);
993 gfx::Rect bounds(-1000, 30, 10000, 10000);
994 int64 target_area = 200 * 200;
995 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
996 in, target_area, bounds, NULL);
997 EXPECT_EQ(out.right() - in.right(), in.x() - out.x());
998 EXPECT_EQ(out.right() - in.right(), out.bottom() - in.bottom());
999 EXPECT_LE(out.width() * out.height(), target_area);
1000 EXPECT_GT(out.width() * out.height(),
1001 target_area - out.width() * 2 - out.height());
1002 EXPECT_TRUE(bounds.Contains(out));
1003 }
1004
1005 TEST(PictureLayerTilingTest, ExpandRectBoundedBottom) {
1006 gfx::Rect in(40, 50, 100, 200);
1007 gfx::Rect bounds(-1000, -1000, 10000, 1000 + 220);
1008 int64 target_area = 200 * 200;
1009 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
1010 in, target_area, bounds, NULL);
1011 EXPECT_EQ(out.right() - in.right(), in.x() - out.x());
1012 EXPECT_EQ(out.right() - in.right(), in.y() - out.y());
1013 EXPECT_LE(out.width() * out.height(), target_area);
1014 EXPECT_GT(out.width() * out.height(),
1015 target_area - out.width() * 2 - out.height());
1016 EXPECT_TRUE(bounds.Contains(out));
1017 }
1018
1019 TEST(PictureLayerTilingTest, ExpandRectSquishedHorizontally) {
1020 gfx::Rect in(40, 50, 100, 200);
1021 gfx::Rect bounds(0, -4000, 100+40+20, 100000);
1022 int64 target_area = 400 * 400;
1023 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
1024 in, target_area, bounds, NULL);
1025 EXPECT_EQ(20, out.right() - in.right());
1026 EXPECT_EQ(40, in.x() - out.x());
1027 EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y());
1028 EXPECT_LE(out.width() * out.height(), target_area);
1029 EXPECT_GT(out.width() * out.height(),
1030 target_area - out.width() * 2);
1031 EXPECT_TRUE(bounds.Contains(out));
1032 }
1033
1034 TEST(PictureLayerTilingTest, ExpandRectSquishedVertically) {
1035 gfx::Rect in(40, 50, 100, 200);
1036 gfx::Rect bounds(-4000, 0, 100000, 200+50+30);
1037 int64 target_area = 400 * 400;
1038 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
1039 in, target_area, bounds, NULL);
1040 EXPECT_EQ(30, out.bottom() - in.bottom());
1041 EXPECT_EQ(50, in.y() - out.y());
1042 EXPECT_EQ(out.right() - in.right(), in.x() - out.x());
1043 EXPECT_LE(out.width() * out.height(), target_area);
1044 EXPECT_GT(out.width() * out.height(),
1045 target_area - out.height() * 2);
1046 EXPECT_TRUE(bounds.Contains(out));
1047 }
1048
1049 TEST(PictureLayerTilingTest, ExpandRectOutOfBoundsFarAway) {
1050 gfx::Rect in(400, 500, 100, 200);
1051 gfx::Rect bounds(0, 0, 10, 10);
1052 int64 target_area = 400 * 400;
1053 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
1054 in, target_area, bounds, NULL);
1055 EXPECT_TRUE(out.IsEmpty());
1056 }
1057
1058 TEST(PictureLayerTilingTest, ExpandRectOutOfBoundsExpandedFullyCover) {
1059 gfx::Rect in(40, 50, 100, 100);
1060 gfx::Rect bounds(0, 0, 10, 10);
1061 int64 target_area = 400 * 400;
1062 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
1063 in, target_area, bounds, NULL);
1064 EXPECT_EQ(bounds.ToString(), out.ToString());
1065 }
1066
1067 TEST(PictureLayerTilingTest, ExpandRectOutOfBoundsExpandedPartlyCover) {
1068 gfx::Rect in(600, 600, 100, 100);
1069 gfx::Rect bounds(0, 0, 500, 500);
1070 int64 target_area = 400 * 400;
1071 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
1072 in, target_area, bounds, NULL);
1073 EXPECT_EQ(bounds.right(), out.right());
1074 EXPECT_EQ(bounds.bottom(), out.bottom());
1075 EXPECT_LE(out.width() * out.height(), target_area);
1076 EXPECT_GT(out.width() * out.height(),
1077 target_area - out.width() - out.height());
1078 EXPECT_TRUE(bounds.Contains(out));
1079 }
1080
1081 TEST(PictureLayerTilingTest, EmptyStartingRect) {
1082 // If a layer has a non-invertible transform, then the starting rect
1083 // for the layer would be empty.
1084 gfx::Rect in(40, 40, 0, 0);
1085 gfx::Rect bounds(0, 0, 10, 10);
1086 int64 target_area = 400 * 400;
1087 gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
1088 in, target_area, bounds, NULL);
1089 EXPECT_TRUE(out.IsEmpty());
1090 }
1091
1092 static void TileExists(bool exists, Tile* tile,
1093 const gfx::Rect& geometry_rect) {
1094 EXPECT_EQ(exists, tile != NULL) << geometry_rect.ToString();
1095 }
1096
1097 TEST_F(PictureLayerTilingIteratorTest, TilesExist) {
1098 gfx::Size layer_bounds(1099, 801);
1099 Initialize(gfx::Size(100, 100), 1.f, layer_bounds);
1100 VerifyTilesExactlyCoverRect(1.f, gfx::Rect(layer_bounds));
1101 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
1102
1103 client_.set_tree(ACTIVE_TREE);
1104 tiling_->ComputeTilePriorityRects(
1105 gfx::Rect(layer_bounds), // visible content rect
1106 1.f, // current contents scale
1107 1.0, // current frame time
1108 Occlusion());
1109 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true));
1110
1111 // Make the viewport rect empty. All tiles are killed and become zombies.
1112 tiling_->ComputeTilePriorityRects(gfx::Rect(), // visible content rect
1113 1.f, // current contents scale
1114 2.0, // current frame time
1115 Occlusion());
1116 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
1117 }
1118
1119 TEST_F(PictureLayerTilingIteratorTest, TilesExistGiantViewport) {
1120 gfx::Size layer_bounds(1099, 801);
1121 Initialize(gfx::Size(100, 100), 1.f, layer_bounds);
1122 VerifyTilesExactlyCoverRect(1.f, gfx::Rect(layer_bounds));
1123 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
1124
1125 gfx::Rect giant_rect(-10000000, -10000000, 1000000000, 1000000000);
1126
1127 client_.set_tree(ACTIVE_TREE);
1128 tiling_->ComputeTilePriorityRects(
1129 gfx::Rect(layer_bounds), // visible content rect
1130 1.f, // current contents scale
1131 1.0, // current frame time
1132 Occlusion());
1133 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true));
1134
1135 // If the visible content rect is empty, it should still have live tiles.
1136 tiling_->ComputeTilePriorityRects(giant_rect, // visible content rect
1137 1.f, // current contents scale
1138 2.0, // current frame time
1139 Occlusion());
1140 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true));
1141 }
1142
1143 TEST_F(PictureLayerTilingIteratorTest, TilesExistOutsideViewport) {
1144 gfx::Size layer_bounds(1099, 801);
1145 Initialize(gfx::Size(100, 100), 1.f, layer_bounds);
1146 VerifyTilesExactlyCoverRect(1.f, gfx::Rect(layer_bounds));
1147 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
1148
1149 // This rect does not intersect with the layer, as the layer is outside the
1150 // viewport.
1151 gfx::Rect viewport_rect(1100, 0, 1000, 1000);
1152 EXPECT_FALSE(viewport_rect.Intersects(gfx::Rect(layer_bounds)));
1153
1154 client_.set_tree(ACTIVE_TREE);
1155 tiling_->ComputeTilePriorityRects(viewport_rect, // visible content rect
1156 1.f, // current contents scale
1157 1.0, // current frame time
1158 Occlusion());
1159 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true));
1160 }
1161
1162 static void TilesIntersectingRectExist(const gfx::Rect& rect,
1163 bool intersect_exists,
1164 Tile* tile,
1165 const gfx::Rect& geometry_rect) {
1166 bool intersects = rect.Intersects(geometry_rect);
1167 bool expected_exists = intersect_exists ? intersects : !intersects;
1168 EXPECT_EQ(expected_exists, tile != NULL)
1169 << "Rects intersecting " << rect.ToString() << " should exist. "
1170 << "Current tile rect is " << geometry_rect.ToString();
1171 }
1172
1173 TEST_F(PictureLayerTilingIteratorTest,
1174 TilesExistLargeViewportAndLayerWithSmallVisibleArea) {
1175 gfx::Size layer_bounds(10000, 10000);
1176 client_.SetTileSize(gfx::Size(100, 100));
1177 client_.set_tree(PENDING_TREE);
1178 LayerTreeSettings settings;
1179 settings.max_tiles_for_interest_area = 1;
1180
1181 scoped_refptr<FakePicturePileImpl> pile =
1182 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(layer_bounds);
1183 tiling_ = TestablePictureLayerTiling::Create(1.f, pile, &client_, settings);
1184 VerifyTilesExactlyCoverRect(1.f, gfx::Rect(layer_bounds));
1185 VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
1186
1187 gfx::Rect visible_rect(8000, 8000, 50, 50);
1188
1189 client_.set_tree(ACTIVE_TREE);
1190 tiling_->ComputeTilePriorityRects(visible_rect, // visible content rect
1191 1.f, // current contents scale
1192 1.0, // current frame time
1193 Occlusion());
1194 VerifyTiles(1.f,
1195 gfx::Rect(layer_bounds),
1196 base::Bind(&TilesIntersectingRectExist, visible_rect, true));
1197 }
1198
1199 TEST(ComputeTilePriorityRectsTest, VisibleTiles) {
1200 // The TilePriority of visible tiles should have zero distance_to_visible
1201 // and time_to_visible.
1202 FakePictureLayerTilingClient client;
1203
1204 gfx::Size device_viewport(800, 600);
1205 gfx::Size last_layer_bounds(200, 200);
1206 gfx::Size current_layer_bounds(200, 200);
1207 float current_layer_contents_scale = 1.f;
1208 gfx::Transform current_screen_transform;
1209 double current_frame_time_in_seconds = 1.0;
1210
1211 gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
1212 current_screen_transform, device_viewport);
1213
1214 client.SetTileSize(gfx::Size(100, 100));
1215 client.set_tree(ACTIVE_TREE);
1216
1217 scoped_refptr<FakePicturePileImpl> pile =
1218 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1219 current_layer_bounds);
1220 scoped_ptr<TestablePictureLayerTiling> tiling =
1221 TestablePictureLayerTiling::Create(1.0f, pile, &client,
1222 LayerTreeSettings());
1223
1224 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1225 current_layer_contents_scale,
1226 current_frame_time_in_seconds, Occlusion());
1227 tiling->UpdateAllTilePrioritiesForTesting();
1228
1229 ASSERT_TRUE(tiling->TileAt(0, 0));
1230 ASSERT_TRUE(tiling->TileAt(0, 1));
1231 ASSERT_TRUE(tiling->TileAt(1, 0));
1232 ASSERT_TRUE(tiling->TileAt(1, 1));
1233
1234 TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1235 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1236 EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
1237
1238 priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1239 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1240 EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
1241
1242 priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1243 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1244 EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
1245
1246 priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1247 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1248 EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
1249 }
1250
1251 TEST(ComputeTilePriorityRectsTest, OffscreenTiles) {
1252 // The TilePriority of offscreen tiles (without movement) should have nonzero
1253 // distance_to_visible and infinite time_to_visible.
1254 FakePictureLayerTilingClient client;
1255
1256 gfx::Size device_viewport(800, 600);
1257 gfx::Size last_layer_bounds(200, 200);
1258 gfx::Size current_layer_bounds(200, 200);
1259 float current_layer_contents_scale = 1.f;
1260 gfx::Transform last_screen_transform;
1261 gfx::Transform current_screen_transform;
1262 double current_frame_time_in_seconds = 1.0;
1263
1264 current_screen_transform.Translate(850, 0);
1265 last_screen_transform = current_screen_transform;
1266
1267 gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
1268 current_screen_transform, device_viewport);
1269
1270 client.SetTileSize(gfx::Size(100, 100));
1271 client.set_tree(ACTIVE_TREE);
1272
1273 scoped_refptr<FakePicturePileImpl> pile =
1274 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1275 current_layer_bounds);
1276 scoped_ptr<TestablePictureLayerTiling> tiling =
1277 TestablePictureLayerTiling::Create(1.0f, pile, &client,
1278 LayerTreeSettings());
1279
1280 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1281 current_layer_contents_scale,
1282 current_frame_time_in_seconds, Occlusion());
1283 tiling->UpdateAllTilePrioritiesForTesting();
1284
1285 ASSERT_TRUE(tiling->TileAt(0, 0));
1286 ASSERT_TRUE(tiling->TileAt(0, 1));
1287 ASSERT_TRUE(tiling->TileAt(1, 0));
1288 ASSERT_TRUE(tiling->TileAt(1, 1));
1289
1290 TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1291 EXPECT_GT(priority.distance_to_visible, 0.f);
1292 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1293
1294 priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1295 EXPECT_GT(priority.distance_to_visible, 0.f);
1296 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1297
1298 priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1299 EXPECT_GT(priority.distance_to_visible, 0.f);
1300 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1301
1302 priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1303 EXPECT_GT(priority.distance_to_visible, 0.f);
1304 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1305
1306 // Furthermore, in this scenario tiles on the right hand side should have a
1307 // larger distance to visible.
1308 TilePriority left = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1309 TilePriority right = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1310 EXPECT_GT(right.distance_to_visible, left.distance_to_visible);
1311
1312 left = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1313 right = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1314 EXPECT_GT(right.distance_to_visible, left.distance_to_visible);
1315 }
1316
1317 TEST(ComputeTilePriorityRectsTest, PartiallyOffscreenLayer) {
1318 // Sanity check that a layer with some tiles visible and others offscreen has
1319 // correct TilePriorities for each tile.
1320 FakePictureLayerTilingClient client;
1321
1322 gfx::Size device_viewport(800, 600);
1323 gfx::Size last_layer_bounds(200, 200);
1324 gfx::Size current_layer_bounds(200, 200);
1325 float current_layer_contents_scale = 1.f;
1326 gfx::Transform last_screen_transform;
1327 gfx::Transform current_screen_transform;
1328 double current_frame_time_in_seconds = 1.0;
1329
1330 current_screen_transform.Translate(705, 505);
1331 last_screen_transform = current_screen_transform;
1332
1333 gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
1334 current_screen_transform, device_viewport);
1335
1336 client.SetTileSize(gfx::Size(100, 100));
1337 client.set_tree(ACTIVE_TREE);
1338
1339 scoped_refptr<FakePicturePileImpl> pile =
1340 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1341 current_layer_bounds);
1342 scoped_ptr<TestablePictureLayerTiling> tiling =
1343 TestablePictureLayerTiling::Create(1.0f, pile, &client,
1344 LayerTreeSettings());
1345
1346 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1347 current_layer_contents_scale,
1348 current_frame_time_in_seconds, Occlusion());
1349 tiling->UpdateAllTilePrioritiesForTesting();
1350
1351 ASSERT_TRUE(tiling->TileAt(0, 0));
1352 ASSERT_TRUE(tiling->TileAt(0, 1));
1353 ASSERT_TRUE(tiling->TileAt(1, 0));
1354 ASSERT_TRUE(tiling->TileAt(1, 1));
1355
1356 TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1357 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1358 EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
1359
1360 priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1361 EXPECT_GT(priority.distance_to_visible, 0.f);
1362 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1363
1364 priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1365 EXPECT_GT(priority.distance_to_visible, 0.f);
1366 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1367
1368 priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1369 EXPECT_GT(priority.distance_to_visible, 0.f);
1370 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1371 }
1372
1373 TEST(ComputeTilePriorityRectsTest, PartiallyOffscreenRotatedLayer) {
1374 // Each tile of a layer may be affected differently by a transform; Check
1375 // that ComputeTilePriorityRects correctly accounts for the transform between
1376 // layer space and screen space.
1377 FakePictureLayerTilingClient client;
1378
1379 gfx::Size device_viewport(800, 600);
1380 gfx::Size last_layer_bounds(200, 200);
1381 gfx::Size current_layer_bounds(200, 200);
1382 float current_layer_contents_scale = 1.f;
1383 gfx::Transform last_screen_transform;
1384 gfx::Transform current_screen_transform;
1385 double current_frame_time_in_seconds = 1.0;
1386
1387 // A diagonally rotated layer that is partially off the bottom of the screen.
1388 // In this configuration, only the top-left tile would be visible.
1389 current_screen_transform.Translate(600, 750);
1390 current_screen_transform.RotateAboutZAxis(45);
1391 last_screen_transform = current_screen_transform;
1392
1393 gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
1394 current_screen_transform, device_viewport);
1395
1396 client.SetTileSize(gfx::Size(100, 100));
1397 client.set_tree(ACTIVE_TREE);
1398
1399 scoped_refptr<FakePicturePileImpl> pile =
1400 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1401 current_layer_bounds);
1402 scoped_ptr<TestablePictureLayerTiling> tiling =
1403 TestablePictureLayerTiling::Create(1.0f, pile, &client,
1404 LayerTreeSettings());
1405
1406 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1407 current_layer_contents_scale,
1408 current_frame_time_in_seconds, Occlusion());
1409 tiling->UpdateAllTilePrioritiesForTesting();
1410
1411 ASSERT_TRUE(tiling->TileAt(0, 0));
1412 ASSERT_TRUE(tiling->TileAt(0, 1));
1413 ASSERT_TRUE(tiling->TileAt(1, 0));
1414 ASSERT_TRUE(tiling->TileAt(1, 1));
1415
1416 TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1417 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1418 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
1419
1420 priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1421 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1422 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
1423
1424 priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1425 EXPECT_GT(priority.distance_to_visible, 0.f);
1426 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1427
1428 priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1429 EXPECT_GT(priority.distance_to_visible, 0.f);
1430 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1431
1432 // Furthermore, in this scenario the bottom-right tile should have the larger
1433 // distance to visible.
1434 TilePriority top_left = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1435 TilePriority top_right = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1436 TilePriority bottom_right = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1437 EXPECT_GT(top_right.distance_to_visible, top_left.distance_to_visible);
1438
1439 EXPECT_EQ(bottom_right.distance_to_visible, top_right.distance_to_visible);
1440 }
1441
1442 TEST(ComputeTilePriorityRectsTest, PerspectiveLayer) {
1443 // Perspective transforms need to take a different code path.
1444 // This test checks tile priorities of a perspective layer.
1445 FakePictureLayerTilingClient client;
1446
1447 gfx::Size device_viewport(800, 600);
1448 gfx::Rect visible_layer_rect(0, 0, 0, 0); // offscreen.
1449 gfx::Size last_layer_bounds(200, 200);
1450 gfx::Size current_layer_bounds(200, 200);
1451 float current_layer_contents_scale = 1.f;
1452 gfx::Transform last_screen_transform;
1453 gfx::Transform current_screen_transform;
1454 double current_frame_time_in_seconds = 1.0;
1455
1456 // A 3d perspective layer rotated about its Y axis, translated to almost
1457 // fully offscreen. The left side will appear closer (i.e. larger in 2d) than
1458 // the right side, so the top-left tile will technically be closer than the
1459 // top-right.
1460
1461 // Translate layer to offscreen
1462 current_screen_transform.Translate(400.0, 630.0);
1463 // Apply perspective about the center of the layer
1464 current_screen_transform.Translate(100.0, 100.0);
1465 current_screen_transform.ApplyPerspectiveDepth(100.0);
1466 current_screen_transform.RotateAboutYAxis(10.0);
1467 current_screen_transform.Translate(-100.0, -100.0);
1468 last_screen_transform = current_screen_transform;
1469
1470 // Sanity check that this transform wouldn't cause w<0 clipping.
1471 bool clipped;
1472 MathUtil::MapQuad(current_screen_transform,
1473 gfx::QuadF(gfx::RectF(0, 0, 200, 200)),
1474 &clipped);
1475 ASSERT_FALSE(clipped);
1476
1477 gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
1478 current_screen_transform, device_viewport);
1479
1480 client.SetTileSize(gfx::Size(100, 100));
1481 client.set_tree(ACTIVE_TREE);
1482
1483 scoped_refptr<FakePicturePileImpl> pile =
1484 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1485 current_layer_bounds);
1486 scoped_ptr<TestablePictureLayerTiling> tiling =
1487 TestablePictureLayerTiling::Create(1.0f, pile, &client,
1488 LayerTreeSettings());
1489
1490 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1491 current_layer_contents_scale,
1492 current_frame_time_in_seconds, Occlusion());
1493 tiling->UpdateAllTilePrioritiesForTesting();
1494
1495 ASSERT_TRUE(tiling->TileAt(0, 0));
1496 ASSERT_TRUE(tiling->TileAt(0, 1));
1497 ASSERT_TRUE(tiling->TileAt(1, 0));
1498 ASSERT_TRUE(tiling->TileAt(1, 1));
1499
1500 // All tiles will have a positive distance_to_visible
1501 // and an infinite time_to_visible.
1502 TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1503 EXPECT_FLOAT_EQ(priority.distance_to_visible, 0.f);
1504 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
1505
1506 priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1507 EXPECT_GT(priority.distance_to_visible, 0.f);
1508 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1509
1510 priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1511 EXPECT_FLOAT_EQ(priority.distance_to_visible, 0.f);
1512 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
1513
1514 priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1515 EXPECT_GT(priority.distance_to_visible, 0.f);
1516 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1517
1518 // Furthermore, in this scenario the top-left distance_to_visible
1519 // will be smallest, followed by top-right. The bottom layers
1520 // will of course be further than the top layers.
1521 TilePriority top_left = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1522 TilePriority top_right = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1523 TilePriority bottom_left = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1524 TilePriority bottom_right = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1525
1526 EXPECT_GT(bottom_right.distance_to_visible, top_right.distance_to_visible);
1527
1528 EXPECT_GT(bottom_left.distance_to_visible, top_left.distance_to_visible);
1529 }
1530
1531 TEST(ComputeTilePriorityRectsTest, PerspectiveLayerClippedByW) {
1532 // Perspective transforms need to take a different code path.
1533 // This test checks tile priorities of a perspective layer.
1534 FakePictureLayerTilingClient client;
1535
1536 gfx::Size device_viewport(800, 600);
1537 gfx::Size last_layer_bounds(200, 200);
1538 gfx::Size current_layer_bounds(200, 200);
1539 float current_layer_contents_scale = 1.f;
1540 gfx::Transform last_screen_transform;
1541 gfx::Transform current_screen_transform;
1542 double current_frame_time_in_seconds = 1.0;
1543
1544 // A 3d perspective layer rotated about its Y axis, translated to almost
1545 // fully offscreen. The left side will appear closer (i.e. larger in 2d) than
1546 // the right side, so the top-left tile will technically be closer than the
1547 // top-right.
1548
1549 // Translate layer to offscreen
1550 current_screen_transform.Translate(400.0, 970.0);
1551 // Apply perspective and rotation about the center of the layer
1552 current_screen_transform.Translate(100.0, 100.0);
1553 current_screen_transform.ApplyPerspectiveDepth(10.0);
1554 current_screen_transform.RotateAboutYAxis(10.0);
1555 current_screen_transform.Translate(-100.0, -100.0);
1556 last_screen_transform = current_screen_transform;
1557
1558 // Sanity check that this transform does cause w<0 clipping for the left side
1559 // of the layer, but not the right side.
1560 bool clipped;
1561 MathUtil::MapQuad(current_screen_transform,
1562 gfx::QuadF(gfx::RectF(0, 0, 100, 200)),
1563 &clipped);
1564 ASSERT_TRUE(clipped);
1565
1566 MathUtil::MapQuad(current_screen_transform,
1567 gfx::QuadF(gfx::RectF(100, 0, 100, 200)),
1568 &clipped);
1569 ASSERT_FALSE(clipped);
1570
1571 gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
1572 current_screen_transform, device_viewport);
1573
1574 client.SetTileSize(gfx::Size(100, 100));
1575 client.set_tree(ACTIVE_TREE);
1576
1577 scoped_refptr<FakePicturePileImpl> pile =
1578 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1579 current_layer_bounds);
1580 scoped_ptr<TestablePictureLayerTiling> tiling =
1581 TestablePictureLayerTiling::Create(1.0f, pile, &client,
1582 LayerTreeSettings());
1583
1584 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1585 current_layer_contents_scale,
1586 current_frame_time_in_seconds, Occlusion());
1587 tiling->UpdateAllTilePrioritiesForTesting();
1588
1589 ASSERT_TRUE(tiling->TileAt(0, 0));
1590 ASSERT_TRUE(tiling->TileAt(0, 1));
1591 ASSERT_TRUE(tiling->TileAt(1, 0));
1592 ASSERT_TRUE(tiling->TileAt(1, 1));
1593
1594 // Left-side tiles will be clipped by the transform, so we have to assume
1595 // they are visible just in case.
1596 TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1597 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1598 EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
1599
1600 priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1601 EXPECT_GT(priority.distance_to_visible, 0.f);
1602 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1603
1604 // Right-side tiles will have a positive distance_to_visible
1605 // and an infinite time_to_visible.
1606 priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1607 EXPECT_FLOAT_EQ(priority.distance_to_visible, 0.f);
1608 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
1609
1610 priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1611 EXPECT_GT(priority.distance_to_visible, 0.f);
1612 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1613 }
1614
1615 TEST(ComputeTilePriorityRectsTest, BasicMotion) {
1616 // Test that time_to_visible is computed correctly when
1617 // there is some motion.
1618 FakePictureLayerTilingClient client;
1619
1620 gfx::Size device_viewport(800, 600);
1621 gfx::Rect visible_layer_rect(0, 0, 0, 0);
1622 gfx::Size last_layer_bounds(200, 200);
1623 gfx::Size current_layer_bounds(200, 200);
1624 float last_layer_contents_scale = 1.f;
1625 float current_layer_contents_scale = 1.f;
1626 gfx::Transform last_screen_transform;
1627 gfx::Transform current_screen_transform;
1628 double last_frame_time_in_seconds = 1.0;
1629 double current_frame_time_in_seconds = 2.0;
1630
1631 // Offscreen layer is coming closer to viewport at 1000 pixels per second.
1632 current_screen_transform.Translate(1800, 0);
1633 last_screen_transform.Translate(2800, 0);
1634
1635 gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
1636 current_screen_transform, device_viewport);
1637
1638 client.SetTileSize(gfx::Size(100, 100));
1639 client.set_tree(ACTIVE_TREE);
1640 LayerTreeSettings settings;
1641 settings.max_tiles_for_interest_area = 10000;
1642
1643 scoped_refptr<FakePicturePileImpl> pile =
1644 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1645 current_layer_bounds);
1646 scoped_ptr<TestablePictureLayerTiling> tiling =
1647 TestablePictureLayerTiling::Create(1.0f, pile, &client, settings);
1648
1649 // previous ("last") frame
1650 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1651 last_layer_contents_scale,
1652 last_frame_time_in_seconds, Occlusion());
1653
1654 // current frame
1655 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1656 current_layer_contents_scale,
1657 current_frame_time_in_seconds, Occlusion());
1658 tiling->UpdateAllTilePrioritiesForTesting();
1659
1660 ASSERT_TRUE(tiling->TileAt(0, 0));
1661 ASSERT_TRUE(tiling->TileAt(0, 1));
1662 ASSERT_TRUE(tiling->TileAt(1, 0));
1663 ASSERT_TRUE(tiling->TileAt(1, 1));
1664
1665 TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1666 EXPECT_GT(priority.distance_to_visible, 0.f);
1667 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1668
1669 priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1670 EXPECT_GT(priority.distance_to_visible, 0.f);
1671 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1672
1673 // time_to_visible for the right hand side layers needs an extra 0.099
1674 // seconds because this tile is 99 pixels further away.
1675 priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1676 EXPECT_GT(priority.distance_to_visible, 0.f);
1677 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1678
1679 priority = tiling->TileAt(1, 1)->priority(ACTIVE_TREE);
1680 EXPECT_GT(priority.distance_to_visible, 0.f);
1681 EXPECT_NE(TilePriority::NOW, priority.priority_bin);
1682 }
1683
1684 TEST(ComputeTilePriorityRectsTest, RotationMotion) {
1685 // Each tile of a layer may be affected differently by a transform; Check
1686 // that ComputeTilePriorityRects correctly accounts for the transform between
1687 // layer space and screen space.
1688
1689 FakePictureLayerTilingClient client;
1690 scoped_ptr<TestablePictureLayerTiling> tiling;
1691
1692 gfx::Size device_viewport(800, 600);
1693 gfx::Rect visible_layer_rect(0, 0, 0, 0); // offscren.
1694 gfx::Size last_layer_bounds(200, 200);
1695 gfx::Size current_layer_bounds(200, 200);
1696 float last_layer_contents_scale = 1.f;
1697 float current_layer_contents_scale = 1.f;
1698 gfx::Transform last_screen_transform;
1699 gfx::Transform current_screen_transform;
1700 double last_frame_time_in_seconds = 1.0;
1701 double current_frame_time_in_seconds = 2.0;
1702
1703 // Rotation motion is set up specifically so that:
1704 // - rotation occurs about the center of the layer
1705 // - the top-left tile becomes visible on rotation
1706 // - the top-right tile will have an infinite time_to_visible
1707 // because it is rotating away from viewport.
1708 // - bottom-left layer will have a positive non-zero time_to_visible
1709 // because it is rotating toward the viewport.
1710 current_screen_transform.Translate(400, 550);
1711 current_screen_transform.RotateAboutZAxis(45);
1712
1713 last_screen_transform.Translate(400, 550);
1714
1715 gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
1716 current_screen_transform, device_viewport);
1717
1718 client.SetTileSize(gfx::Size(100, 100));
1719 client.set_tree(ACTIVE_TREE);
1720
1721 scoped_refptr<FakePicturePileImpl> pile =
1722 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1723 current_layer_bounds);
1724 tiling = TestablePictureLayerTiling::Create(1.0f, pile, &client,
1725 LayerTreeSettings());
1726
1727 // previous ("last") frame
1728 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1729 last_layer_contents_scale,
1730 last_frame_time_in_seconds, Occlusion());
1731
1732 // current frame
1733 tiling->ComputeTilePriorityRects(viewport_in_layer_space,
1734 current_layer_contents_scale,
1735 current_frame_time_in_seconds, Occlusion());
1736 tiling->UpdateAllTilePrioritiesForTesting();
1737
1738 ASSERT_TRUE(tiling->TileAt(0, 0));
1739 ASSERT_TRUE(tiling->TileAt(0, 1));
1740 ASSERT_TRUE(tiling->TileAt(1, 0));
1741 ASSERT_TRUE(tiling->TileAt(1, 1));
1742
1743 TilePriority priority = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
1744 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1745 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
1746
1747 priority = tiling->TileAt(0, 1)->priority(ACTIVE_TREE);
1748 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1749 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
1750
1751 priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
1752 EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
1753 EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
1754 }
1755
1756 TEST(PictureLayerTilingTest, RecycledTilesCleared) {
1757 // This test performs the following:
1758 // Setup:
1759 // - Two tilings, one active one recycled with all tiles shared.
1760 // Procedure:
1761 // - Viewport moves somewhere far away and active tiling clears tiles.
1762 // - Viewport moves back and a new active tiling tile is created.
1763 // Result:
1764 // - Recycle tiling does _not_ have the tile in the same location (thus it
1765 // will be shared next time a pending tiling is created).
1766
1767 FakePictureLayerTilingClient active_client;
1768
1769 active_client.SetTileSize(gfx::Size(100, 100));
1770 active_client.set_tree(ACTIVE_TREE);
1771 LayerTreeSettings settings;
1772 settings.max_tiles_for_interest_area = 10;
1773
1774 scoped_refptr<FakePicturePileImpl> pile =
1775 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1776 gfx::Size(10000, 10000));
1777 scoped_ptr<TestablePictureLayerTiling> active_tiling =
1778 TestablePictureLayerTiling::Create(1.0f, pile, &active_client, settings);
1779 // Create all tiles on this tiling.
1780 active_tiling->ComputeTilePriorityRects(gfx::Rect(0, 0, 100, 100), 1.0f, 1.0f,
1781 Occlusion());
1782
1783 FakePictureLayerTilingClient recycle_client;
1784 recycle_client.SetTileSize(gfx::Size(100, 100));
1785 recycle_client.set_tree(PENDING_TREE);
1786 recycle_client.set_twin_tiling(active_tiling.get());
1787
1788 pile = FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1789 gfx::Size(10000, 10000));
1790 scoped_ptr<TestablePictureLayerTiling> recycle_tiling =
1791 TestablePictureLayerTiling::Create(1.0f, pile, &recycle_client, settings);
1792
1793 // Create all tiles on the second tiling. All tiles should be shared.
1794 recycle_tiling->ComputeTilePriorityRects(gfx::Rect(0, 0, 100, 100), 1.0f,
1795 1.0f, Occlusion());
1796
1797 // Set the second tiling as recycled.
1798 active_client.set_twin_tiling(NULL);
1799 active_client.set_recycled_twin_tiling(recycle_tiling.get());
1800 recycle_client.set_twin_tiling(NULL);
1801
1802 // Verify that tiles exist and are shared.
1803 EXPECT_TRUE(active_tiling->TileAt(0, 0));
1804 EXPECT_TRUE(recycle_tiling->TileAt(0, 0));
1805 EXPECT_EQ(active_tiling->TileAt(0, 0), recycle_tiling->TileAt(0, 0));
1806
1807 // Move the viewport far away from the (0, 0) tile.
1808 active_tiling->ComputeTilePriorityRects(gfx::Rect(9000, 9000, 100, 100), 1.0f,
1809 2.0, Occlusion());
1810 // Ensure the tile was deleted on both tilings.
1811 EXPECT_FALSE(active_tiling->TileAt(0, 0));
1812 EXPECT_FALSE(recycle_tiling->TileAt(0, 0));
1813
1814 // Move the viewport back to (0, 0) tile.
1815 active_tiling->ComputeTilePriorityRects(gfx::Rect(0, 0, 100, 100), 1.0f, 3.0,
1816 Occlusion());
1817
1818 // Ensure that we now have a tile here on both tilings again.
1819 EXPECT_TRUE(active_tiling->TileAt(0, 0));
1820 EXPECT_TRUE(recycle_tiling->TileAt(0, 0));
1821 }
1822
1823 TEST(PictureLayerTilingTest, RecycledTilesClearedOnReset) {
1824 FakePictureLayerTilingClient active_client;
1825 active_client.SetTileSize(gfx::Size(100, 100));
1826 active_client.set_tree(ACTIVE_TREE);
1827
1828 scoped_refptr<FakePicturePileImpl> pile =
1829 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1830 gfx::Size(100, 100));
1831 scoped_ptr<TestablePictureLayerTiling> active_tiling =
1832 TestablePictureLayerTiling::Create(1.0f, pile, &active_client,
1833 LayerTreeSettings());
1834 // Create all tiles on this tiling.
1835 active_tiling->ComputeTilePriorityRects(gfx::Rect(0, 0, 100, 100), 1.0f, 1.0f,
1836 Occlusion());
1837
1838 FakePictureLayerTilingClient recycle_client;
1839 recycle_client.SetTileSize(gfx::Size(100, 100));
1840 recycle_client.set_tree(PENDING_TREE);
1841 recycle_client.set_twin_tiling(active_tiling.get());
1842
1843 LayerTreeSettings settings;
1844 settings.max_tiles_for_interest_area = 10;
1845
1846 pile = FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1847 gfx::Size(100, 100));
1848 scoped_ptr<TestablePictureLayerTiling> recycle_tiling =
1849 TestablePictureLayerTiling::Create(1.0f, pile, &recycle_client, settings);
1850
1851 // Create all tiles on the recycle tiling. All tiles should be shared.
1852 recycle_tiling->ComputeTilePriorityRects(gfx::Rect(0, 0, 100, 100), 1.0f,
1853 1.0f, Occlusion());
1854
1855 // Set the second tiling as recycled.
1856 active_client.set_twin_tiling(NULL);
1857 active_client.set_recycled_twin_tiling(recycle_tiling.get());
1858 recycle_client.set_twin_tiling(NULL);
1859
1860 // Verify that tiles exist and are shared.
1861 EXPECT_TRUE(active_tiling->TileAt(0, 0));
1862 EXPECT_TRUE(recycle_tiling->TileAt(0, 0));
1863 EXPECT_EQ(active_tiling->TileAt(0, 0), recycle_tiling->TileAt(0, 0));
1864
1865 // Reset the active tiling. The recycle tiles should be released too.
1866 active_tiling->Reset();
1867 EXPECT_FALSE(active_tiling->TileAt(0, 0));
1868 EXPECT_FALSE(recycle_tiling->TileAt(0, 0));
1869 }
1870
1871 TEST_F(PictureLayerTilingIteratorTest, ResizeTilesAndUpdateToCurrent) {
1872 // The tiling has four rows and three columns.
1873 Initialize(gfx::Size(150, 100), 1.f, gfx::Size(250, 150));
1874 tiling_->CreateAllTilesForTesting();
1875 EXPECT_EQ(150, tiling_->TilingDataForTesting().max_texture_size().width());
1876 EXPECT_EQ(100, tiling_->TilingDataForTesting().max_texture_size().height());
1877 EXPECT_EQ(4u, tiling_->AllRefTilesForTesting().size());
1878
1879 client_.SetTileSize(gfx::Size(250, 200));
1880 client_.set_tree(PENDING_TREE);
1881
1882 // Tile size in the tiling should still be 150x100.
1883 EXPECT_EQ(150, tiling_->TilingDataForTesting().max_texture_size().width());
1884 EXPECT_EQ(100, tiling_->TilingDataForTesting().max_texture_size().height());
1885
1886 // The layer's size isn't changed, but the tile size was.
1887 scoped_refptr<FakePicturePileImpl> pile =
1888 FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
1889 gfx::Size(250, 150));
1890 tiling_->SetRasterSourceAndResize(pile);
1891
1892 // Tile size in the tiling should be resized to 250x200.
1893 EXPECT_EQ(250, tiling_->TilingDataForTesting().max_texture_size().width());
1894 EXPECT_EQ(200, tiling_->TilingDataForTesting().max_texture_size().height());
1895 EXPECT_EQ(0u, tiling_->AllRefTilesForTesting().size());
1896 }
1897
1898 } // namespace
1899 } // namespace cc