forked from chromium/chromium
-
Notifications
You must be signed in to change notification settings - Fork 0
/
picture_layer_tiling_unittest.cc
1836 lines (1502 loc) · 74.7 KB
/
picture_layer_tiling_unittest.cc
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
// Copyright 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stddef.h>
#include <limits>
#include <set>
#include "base/macros.h"
#include "cc/base/math_util.h"
#include "cc/test/fake_display_list_raster_source.h"
#include "cc/test/fake_output_surface.h"
#include "cc/test/fake_output_surface_client.h"
#include "cc/test/fake_picture_layer_tiling_client.h"
#include "cc/test/test_context_provider.h"
#include "cc/test/test_shared_bitmap_manager.h"
#include "cc/tiles/picture_layer_tiling.h"
#include "cc/tiles/picture_layer_tiling_set.h"
#include "cc/trees/layer_tree_settings.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/geometry/quad_f.h"
#include "ui/gfx/geometry/rect_conversions.h"
#include "ui/gfx/geometry/size_conversions.h"
namespace cc {
namespace {
static gfx::Rect ViewportInLayerSpace(
const gfx::Transform& transform,
const gfx::Size& device_viewport) {
gfx::Transform inverse;
if (!transform.GetInverse(&inverse))
return gfx::Rect();
return MathUtil::ProjectEnclosingClippedRect(inverse,
gfx::Rect(device_viewport));
}
class TestablePictureLayerTiling : public PictureLayerTiling {
public:
using PictureLayerTiling::SetLiveTilesRect;
using PictureLayerTiling::TileAt;
static scoped_ptr<TestablePictureLayerTiling> Create(
WhichTree tree,
float contents_scale,
scoped_refptr<DisplayListRasterSource> raster_source,
PictureLayerTilingClient* client,
const LayerTreeSettings& settings) {
return make_scoped_ptr(new TestablePictureLayerTiling(
tree, contents_scale, raster_source, client,
settings.tiling_interest_area_padding,
settings.skewport_target_time_in_seconds,
settings.skewport_extrapolation_limit_in_content_pixels));
}
gfx::Rect live_tiles_rect() const { return live_tiles_rect_; }
using PictureLayerTiling::ComputeSkewport;
using PictureLayerTiling::RemoveTileAt;
using PictureLayerTiling::RemoveTilesInRegion;
protected:
TestablePictureLayerTiling(
WhichTree tree,
float contents_scale,
scoped_refptr<DisplayListRasterSource> raster_source,
PictureLayerTilingClient* client,
size_t tiling_interest_area_padding,
float skewport_target_time,
int skewport_extrapolation_limit)
: PictureLayerTiling(tree,
contents_scale,
raster_source,
client,
tiling_interest_area_padding,
skewport_target_time,
skewport_extrapolation_limit) {}
};
class PictureLayerTilingIteratorTest : public testing::Test {
public:
PictureLayerTilingIteratorTest() {}
~PictureLayerTilingIteratorTest() override {}
void Initialize(const gfx::Size& tile_size,
float contents_scale,
const gfx::Size& layer_bounds) {
client_.SetTileSize(tile_size);
scoped_refptr<FakeDisplayListRasterSource> raster_source =
FakeDisplayListRasterSource::CreateFilled(layer_bounds);
tiling_ = TestablePictureLayerTiling::Create(PENDING_TREE, contents_scale,
raster_source, &client_,
LayerTreeSettings());
tiling_->set_resolution(HIGH_RESOLUTION);
}
void InitializeActive(const gfx::Size& tile_size,
float contents_scale,
const gfx::Size& layer_bounds) {
client_.SetTileSize(tile_size);
scoped_refptr<FakeDisplayListRasterSource> raster_source =
FakeDisplayListRasterSource::CreateFilled(layer_bounds);
tiling_ = TestablePictureLayerTiling::Create(ACTIVE_TREE, contents_scale,
raster_source, &client_,
LayerTreeSettings());
tiling_->set_resolution(HIGH_RESOLUTION);
}
void SetLiveRectAndVerifyTiles(const gfx::Rect& live_tiles_rect) {
tiling_->SetLiveTilesRect(live_tiles_rect);
std::vector<Tile*> tiles = tiling_->AllTilesForTesting();
for (std::vector<Tile*>::iterator iter = tiles.begin();
iter != tiles.end();
++iter) {
EXPECT_TRUE(live_tiles_rect.Intersects((*iter)->content_rect()));
}
}
void VerifyTilesExactlyCoverRect(
float rect_scale,
const gfx::Rect& request_rect,
const gfx::Rect& expect_rect) {
EXPECT_TRUE(request_rect.Contains(expect_rect));
// Iterators are not valid if this ratio is too large (i.e. the
// tiling is too high-res for a low-res destination rect.) This is an
// artifact of snapping geometry to integer coordinates and then mapping
// back to floating point texture coordinates.
float dest_to_contents_scale = tiling_->contents_scale() / rect_scale;
ASSERT_LE(dest_to_contents_scale, 2.0);
Region remaining = expect_rect;
for (PictureLayerTiling::CoverageIterator
iter(tiling_.get(), rect_scale, request_rect);
iter;
++iter) {
// Geometry cannot overlap previous geometry at all
gfx::Rect geometry = iter.geometry_rect();
EXPECT_TRUE(expect_rect.Contains(geometry));
EXPECT_TRUE(remaining.Contains(geometry));
remaining.Subtract(geometry);
// Sanity check that texture coords are within the texture rect.
gfx::RectF texture_rect = iter.texture_rect();
EXPECT_GE(texture_rect.x(), 0);
EXPECT_GE(texture_rect.y(), 0);
EXPECT_LE(texture_rect.right(), client_.TileSize().width());
EXPECT_LE(texture_rect.bottom(), client_.TileSize().height());
}
// The entire rect must be filled by geometry from the tiling.
EXPECT_TRUE(remaining.IsEmpty());
}
void VerifyTilesExactlyCoverRect(float rect_scale, const gfx::Rect& rect) {
VerifyTilesExactlyCoverRect(rect_scale, rect, rect);
}
void VerifyTiles(
float rect_scale,
const gfx::Rect& rect,
base::Callback<void(Tile* tile,
const gfx::Rect& geometry_rect)> callback) {
VerifyTiles(tiling_.get(),
rect_scale,
rect,
callback);
}
void VerifyTiles(
PictureLayerTiling* tiling,
float rect_scale,
const gfx::Rect& rect,
base::Callback<void(Tile* tile,
const gfx::Rect& geometry_rect)> callback) {
Region remaining = rect;
for (PictureLayerTiling::CoverageIterator iter(tiling, rect_scale, rect);
iter;
++iter) {
remaining.Subtract(iter.geometry_rect());
callback.Run(*iter, iter.geometry_rect());
}
EXPECT_TRUE(remaining.IsEmpty());
}
void VerifyTilesCoverNonContainedRect(float rect_scale,
const gfx::Rect& dest_rect) {
float dest_to_contents_scale = tiling_->contents_scale() / rect_scale;
gfx::Rect clamped_rect = gfx::ScaleToEnclosingRect(
gfx::Rect(tiling_->tiling_size()), 1.f / dest_to_contents_scale);
clamped_rect.Intersect(dest_rect);
VerifyTilesExactlyCoverRect(rect_scale, dest_rect, clamped_rect);
}
protected:
FakePictureLayerTilingClient client_;
scoped_ptr<TestablePictureLayerTiling> tiling_;
private:
DISALLOW_COPY_AND_ASSIGN(PictureLayerTilingIteratorTest);
};
TEST_F(PictureLayerTilingIteratorTest, ResizeDeletesTiles) {
// Verifies that a resize with invalidation for newly exposed pixels will
// deletes tiles that intersect that invalidation.
gfx::Size tile_size(100, 100);
gfx::Size original_layer_size(10, 10);
InitializeActive(tile_size, 1.f, original_layer_size);
SetLiveRectAndVerifyTiles(gfx::Rect(original_layer_size));
// Tiling only has one tile, since its total size is less than one.
EXPECT_TRUE(tiling_->TileAt(0, 0));
// Stop creating tiles so that any invalidations are left as holes.
gfx::Size new_layer_size(200, 200);
scoped_refptr<FakeDisplayListRasterSource> raster_source =
FakeDisplayListRasterSource::CreatePartiallyFilled(new_layer_size,
gfx::Rect());
Region invalidation =
SubtractRegions(gfx::Rect(tile_size), gfx::Rect(original_layer_size));
tiling_->SetRasterSourceAndResize(raster_source);
EXPECT_TRUE(tiling_->TileAt(0, 0));
tiling_->Invalidate(invalidation);
EXPECT_FALSE(tiling_->TileAt(0, 0));
}
TEST_F(PictureLayerTilingIteratorTest, CreateMissingTilesStaysInsideLiveRect) {
// The tiling has three rows and columns.
Initialize(gfx::Size(100, 100), 1.f, gfx::Size(250, 250));
EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_y());
// The live tiles rect is at the very edge of the right-most and
// bottom-most tiles. Their border pixels would still be inside the live
// tiles rect, but the tiles should not exist just for that.
int right = tiling_->TilingDataForTesting().TileBounds(2, 2).x();
int bottom = tiling_->TilingDataForTesting().TileBounds(2, 2).y();
SetLiveRectAndVerifyTiles(gfx::Rect(right, bottom));
EXPECT_FALSE(tiling_->TileAt(2, 0));
EXPECT_FALSE(tiling_->TileAt(2, 1));
EXPECT_FALSE(tiling_->TileAt(2, 2));
EXPECT_FALSE(tiling_->TileAt(1, 2));
EXPECT_FALSE(tiling_->TileAt(0, 2));
// Verify CreateMissingTilesInLiveTilesRect respects this.
tiling_->CreateMissingTilesInLiveTilesRect();
EXPECT_FALSE(tiling_->TileAt(2, 0));
EXPECT_FALSE(tiling_->TileAt(2, 1));
EXPECT_FALSE(tiling_->TileAt(2, 2));
EXPECT_FALSE(tiling_->TileAt(1, 2));
EXPECT_FALSE(tiling_->TileAt(0, 2));
}
TEST_F(PictureLayerTilingIteratorTest, ResizeTilingOverTileBorders) {
// The tiling has four rows and three columns.
Initialize(gfx::Size(100, 100), 1.f, gfx::Size(250, 350));
EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
EXPECT_EQ(4, tiling_->TilingDataForTesting().num_tiles_y());
// The live tiles rect covers the whole tiling.
SetLiveRectAndVerifyTiles(gfx::Rect(250, 350));
// Tiles in the bottom row and right column exist.
EXPECT_TRUE(tiling_->TileAt(2, 0));
EXPECT_TRUE(tiling_->TileAt(2, 1));
EXPECT_TRUE(tiling_->TileAt(2, 2));
EXPECT_TRUE(tiling_->TileAt(2, 3));
EXPECT_TRUE(tiling_->TileAt(1, 3));
EXPECT_TRUE(tiling_->TileAt(0, 3));
int right = tiling_->TilingDataForTesting().TileBounds(2, 2).x();
int bottom = tiling_->TilingDataForTesting().TileBounds(2, 3).y();
// Shrink the tiling so that the last tile row/column is entirely in the
// border pixels of the interior tiles. That row/column is removed.
scoped_refptr<FakeDisplayListRasterSource> raster_source =
FakeDisplayListRasterSource::CreateFilled(
gfx::Size(right + 1, bottom + 1));
tiling_->SetRasterSourceAndResize(raster_source);
EXPECT_EQ(2, tiling_->TilingDataForTesting().num_tiles_x());
EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_y());
// The live tiles rect was clamped to the raster source size.
EXPECT_EQ(gfx::Rect(right + 1, bottom + 1), tiling_->live_tiles_rect());
// Since the row/column is gone, the tiles should be gone too.
EXPECT_FALSE(tiling_->TileAt(2, 0));
EXPECT_FALSE(tiling_->TileAt(2, 1));
EXPECT_FALSE(tiling_->TileAt(2, 2));
EXPECT_FALSE(tiling_->TileAt(2, 3));
EXPECT_FALSE(tiling_->TileAt(1, 3));
EXPECT_FALSE(tiling_->TileAt(0, 3));
// Growing outside the current right/bottom tiles border pixels should create
// the tiles again, even though the live rect has not changed size.
raster_source = FakeDisplayListRasterSource::CreateFilled(
gfx::Size(right + 2, bottom + 2));
tiling_->SetRasterSourceAndResize(raster_source);
EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
EXPECT_EQ(4, tiling_->TilingDataForTesting().num_tiles_y());
// Not changed.
EXPECT_EQ(gfx::Rect(right + 1, bottom + 1), tiling_->live_tiles_rect());
// The last row/column tiles are inside the live tiles rect.
EXPECT_TRUE(gfx::Rect(right + 1, bottom + 1).Intersects(
tiling_->TilingDataForTesting().TileBounds(2, 0)));
EXPECT_TRUE(gfx::Rect(right + 1, bottom + 1).Intersects(
tiling_->TilingDataForTesting().TileBounds(0, 3)));
EXPECT_TRUE(tiling_->TileAt(2, 0));
EXPECT_TRUE(tiling_->TileAt(2, 1));
EXPECT_TRUE(tiling_->TileAt(2, 2));
EXPECT_TRUE(tiling_->TileAt(2, 3));
EXPECT_TRUE(tiling_->TileAt(1, 3));
EXPECT_TRUE(tiling_->TileAt(0, 3));
}
TEST_F(PictureLayerTilingIteratorTest, ResizeLiveTileRectOverTileBorders) {
// The tiling has three rows and columns.
Initialize(gfx::Size(100, 100), 1.f, gfx::Size(250, 350));
EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
EXPECT_EQ(4, tiling_->TilingDataForTesting().num_tiles_y());
// The live tiles rect covers the whole tiling.
SetLiveRectAndVerifyTiles(gfx::Rect(250, 350));
// Tiles in the bottom row and right column exist.
EXPECT_TRUE(tiling_->TileAt(2, 0));
EXPECT_TRUE(tiling_->TileAt(2, 1));
EXPECT_TRUE(tiling_->TileAt(2, 2));
EXPECT_TRUE(tiling_->TileAt(2, 3));
EXPECT_TRUE(tiling_->TileAt(1, 3));
EXPECT_TRUE(tiling_->TileAt(0, 3));
// Shrink the live tiles rect to the very edge of the right-most and
// bottom-most tiles. Their border pixels would still be inside the live
// tiles rect, but the tiles should not exist just for that.
int right = tiling_->TilingDataForTesting().TileBounds(2, 3).x();
int bottom = tiling_->TilingDataForTesting().TileBounds(2, 3).y();
SetLiveRectAndVerifyTiles(gfx::Rect(right, bottom));
EXPECT_FALSE(tiling_->TileAt(2, 0));
EXPECT_FALSE(tiling_->TileAt(2, 1));
EXPECT_FALSE(tiling_->TileAt(2, 2));
EXPECT_FALSE(tiling_->TileAt(2, 3));
EXPECT_FALSE(tiling_->TileAt(1, 3));
EXPECT_FALSE(tiling_->TileAt(0, 3));
// Including the bottom row and right column again, should create the tiles.
SetLiveRectAndVerifyTiles(gfx::Rect(right + 1, bottom + 1));
EXPECT_TRUE(tiling_->TileAt(2, 0));
EXPECT_TRUE(tiling_->TileAt(2, 1));
EXPECT_TRUE(tiling_->TileAt(2, 2));
EXPECT_TRUE(tiling_->TileAt(2, 3));
EXPECT_TRUE(tiling_->TileAt(1, 2));
EXPECT_TRUE(tiling_->TileAt(0, 2));
// Shrink the live tiles rect to the very edge of the left-most and
// top-most tiles. Their border pixels would still be inside the live
// tiles rect, but the tiles should not exist just for that.
int left = tiling_->TilingDataForTesting().TileBounds(0, 0).right();
int top = tiling_->TilingDataForTesting().TileBounds(0, 0).bottom();
SetLiveRectAndVerifyTiles(gfx::Rect(left, top, 250 - left, 350 - top));
EXPECT_FALSE(tiling_->TileAt(0, 3));
EXPECT_FALSE(tiling_->TileAt(0, 2));
EXPECT_FALSE(tiling_->TileAt(0, 1));
EXPECT_FALSE(tiling_->TileAt(0, 0));
EXPECT_FALSE(tiling_->TileAt(1, 0));
EXPECT_FALSE(tiling_->TileAt(2, 0));
// Including the top row and left column again, should create the tiles.
SetLiveRectAndVerifyTiles(
gfx::Rect(left - 1, top - 1, 250 - left, 350 - top));
EXPECT_TRUE(tiling_->TileAt(0, 3));
EXPECT_TRUE(tiling_->TileAt(0, 2));
EXPECT_TRUE(tiling_->TileAt(0, 1));
EXPECT_TRUE(tiling_->TileAt(0, 0));
EXPECT_TRUE(tiling_->TileAt(1, 0));
EXPECT_TRUE(tiling_->TileAt(2, 0));
}
TEST_F(PictureLayerTilingIteratorTest, ResizeLiveTileRectOverSameTiles) {
// The tiling has four rows and three columns.
Initialize(gfx::Size(100, 100), 1.f, gfx::Size(250, 350));
EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
EXPECT_EQ(4, tiling_->TilingDataForTesting().num_tiles_y());
// The live tiles rect covers the whole tiling.
SetLiveRectAndVerifyTiles(gfx::Rect(250, 350));
// All tiles exist.
for (int i = 0; i < 3; ++i) {
for (int j = 0; j < 4; ++j)
EXPECT_TRUE(tiling_->TileAt(i, j)) << i << "," << j;
}
// Shrink the live tiles rect, but still cover all the tiles.
SetLiveRectAndVerifyTiles(gfx::Rect(1, 1, 249, 349));
// All tiles still exist.
for (int i = 0; i < 3; ++i) {
for (int j = 0; j < 4; ++j)
EXPECT_TRUE(tiling_->TileAt(i, j)) << i << "," << j;
}
// Grow the live tiles rect, but still cover all the same tiles.
SetLiveRectAndVerifyTiles(gfx::Rect(0, 0, 250, 350));
// All tiles still exist.
for (int i = 0; i < 3; ++i) {
for (int j = 0; j < 4; ++j)
EXPECT_TRUE(tiling_->TileAt(i, j)) << i << "," << j;
}
}
TEST_F(PictureLayerTilingIteratorTest, ResizeOverBorderPixelsDeletesTiles) {
// Verifies that a resize with invalidation for newly exposed pixels will
// deletes tiles that intersect that invalidation.
gfx::Size tile_size(100, 100);
gfx::Size original_layer_size(99, 99);
InitializeActive(tile_size, 1.f, original_layer_size);
SetLiveRectAndVerifyTiles(gfx::Rect(original_layer_size));
// Tiling only has one tile, since its total size is less than one.
EXPECT_TRUE(tiling_->TileAt(0, 0));
// Stop creating tiles so that any invalidations are left as holes.
scoped_refptr<FakeDisplayListRasterSource> raster_source =
FakeDisplayListRasterSource::CreatePartiallyFilled(gfx::Size(200, 200),
gfx::Rect());
tiling_->SetRasterSourceAndResize(raster_source);
Region invalidation =
SubtractRegions(gfx::Rect(tile_size), gfx::Rect(original_layer_size));
EXPECT_TRUE(tiling_->TileAt(0, 0));
tiling_->Invalidate(invalidation);
EXPECT_FALSE(tiling_->TileAt(0, 0));
// The original tile was the same size after resize, but it would include new
// border pixels.
EXPECT_EQ(gfx::Rect(original_layer_size),
tiling_->TilingDataForTesting().TileBounds(0, 0));
}
TEST_F(PictureLayerTilingIteratorTest, RemoveOutsideLayerKeepsTiles) {
gfx::Size tile_size(100, 100);
gfx::Size layer_size(100, 100);
InitializeActive(tile_size, 1.f, layer_size);
SetLiveRectAndVerifyTiles(gfx::Rect(layer_size));
// In all cases here, the tiling should remain with one tile, since the remove
// region doesn't intersect it.
bool recreate_tiles = false;
// Top
tiling_->RemoveTilesInRegion(gfx::Rect(50, -1, 1, 1), recreate_tiles);
EXPECT_TRUE(tiling_->TileAt(0, 0));
// Bottom
tiling_->RemoveTilesInRegion(gfx::Rect(50, 100, 1, 1), recreate_tiles);
EXPECT_TRUE(tiling_->TileAt(0, 0));
// Left
tiling_->RemoveTilesInRegion(gfx::Rect(-1, 50, 1, 1), recreate_tiles);
EXPECT_TRUE(tiling_->TileAt(0, 0));
// Right
tiling_->RemoveTilesInRegion(gfx::Rect(100, 50, 1, 1), recreate_tiles);
EXPECT_TRUE(tiling_->TileAt(0, 0));
}
TEST_F(PictureLayerTilingIteratorTest, LiveTilesExactlyCoverLiveTileRect) {
Initialize(gfx::Size(100, 100), 1.f, gfx::Size(1099, 801));
SetLiveRectAndVerifyTiles(gfx::Rect(100, 100));
SetLiveRectAndVerifyTiles(gfx::Rect(101, 99));
SetLiveRectAndVerifyTiles(gfx::Rect(1099, 1));
SetLiveRectAndVerifyTiles(gfx::Rect(1, 801));
SetLiveRectAndVerifyTiles(gfx::Rect(1099, 1));
SetLiveRectAndVerifyTiles(gfx::Rect(201, 800));
}
TEST_F(PictureLayerTilingIteratorTest, IteratorCoversLayerBoundsNoScale) {
Initialize(gfx::Size(100, 100), 1.f, gfx::Size(1099, 801));
VerifyTilesExactlyCoverRect(1, gfx::Rect());
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1099, 801));
VerifyTilesExactlyCoverRect(1, gfx::Rect(52, 83, 789, 412));
// With borders, a size of 3x3 = 1 pixel of content.
Initialize(gfx::Size(3, 3), 1.f, gfx::Size(10, 10));
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1, 1));
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 2, 2));
VerifyTilesExactlyCoverRect(1, gfx::Rect(1, 1, 2, 2));
VerifyTilesExactlyCoverRect(1, gfx::Rect(3, 2, 5, 2));
}
TEST_F(PictureLayerTilingIteratorTest, IteratorCoversLayerBoundsTilingScale) {
Initialize(gfx::Size(200, 100), 2.0f, gfx::Size(1005, 2010));
VerifyTilesExactlyCoverRect(1, gfx::Rect());
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1005, 2010));
VerifyTilesExactlyCoverRect(1, gfx::Rect(50, 112, 512, 381));
Initialize(gfx::Size(3, 3), 2.0f, gfx::Size(10, 10));
VerifyTilesExactlyCoverRect(1, gfx::Rect());
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1, 1));
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 2, 2));
VerifyTilesExactlyCoverRect(1, gfx::Rect(1, 1, 2, 2));
VerifyTilesExactlyCoverRect(1, gfx::Rect(3, 2, 5, 2));
Initialize(gfx::Size(100, 200), 0.5f, gfx::Size(1005, 2010));
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1005, 2010));
VerifyTilesExactlyCoverRect(1, gfx::Rect(50, 112, 512, 381));
Initialize(gfx::Size(150, 250), 0.37f, gfx::Size(1005, 2010));
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1005, 2010));
VerifyTilesExactlyCoverRect(1, gfx::Rect(50, 112, 512, 381));
Initialize(gfx::Size(312, 123), 0.01f, gfx::Size(1005, 2010));
VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1005, 2010));
VerifyTilesExactlyCoverRect(1, gfx::Rect(50, 112, 512, 381));
}
TEST_F(PictureLayerTilingIteratorTest, IteratorCoversLayerBoundsBothScale) {
Initialize(gfx::Size(50, 50), 4.0f, gfx::Size(800, 600));
VerifyTilesExactlyCoverRect(2.0f, gfx::Rect());
VerifyTilesExactlyCoverRect(2.0f, gfx::Rect(0, 0, 1600, 1200));
VerifyTilesExactlyCoverRect(2.0f, gfx::Rect(512, 365, 253, 182));
float scale = 6.7f;
gfx::Size bounds(800, 600);
gfx::Rect full_rect(gfx::ScaleToCeiledSize(bounds, scale));
Initialize(gfx::Size(256, 512), 5.2f, bounds);
VerifyTilesExactlyCoverRect(scale, full_rect);
VerifyTilesExactlyCoverRect(scale, gfx::Rect(2014, 1579, 867, 1033));
}
TEST_F(PictureLayerTilingIteratorTest, IteratorEmptyRect) {
Initialize(gfx::Size(100, 100), 1.0f, gfx::Size(800, 600));
gfx::Rect empty;
PictureLayerTiling::CoverageIterator iter(tiling_.get(), 1.0f, empty);
EXPECT_FALSE(iter);
}
TEST_F(PictureLayerTilingIteratorTest, NonIntersectingRect) {
Initialize(gfx::Size(100, 100), 1.0f, gfx::Size(800, 600));
gfx::Rect non_intersecting(1000, 1000, 50, 50);
PictureLayerTiling::CoverageIterator iter(tiling_.get(), 1, non_intersecting);
EXPECT_FALSE(iter);
}
TEST_F(PictureLayerTilingIteratorTest, LayerEdgeTextureCoordinates) {
Initialize(gfx::Size(300, 300), 1.0f, gfx::Size(256, 256));
// All of these sizes are 256x256, scaled and ceiled.
VerifyTilesExactlyCoverRect(1.0f, gfx::Rect(0, 0, 256, 256));
VerifyTilesExactlyCoverRect(0.8f, gfx::Rect(0, 0, 205, 205));
VerifyTilesExactlyCoverRect(1.2f, gfx::Rect(0, 0, 308, 308));
}
TEST_F(PictureLayerTilingIteratorTest, NonContainedDestRect) {
Initialize(gfx::Size(100, 100), 1.0f, gfx::Size(400, 400));
// Too large in all dimensions
VerifyTilesCoverNonContainedRect(1.0f, gfx::Rect(-1000, -1000, 2000, 2000));
VerifyTilesCoverNonContainedRect(1.5f, gfx::Rect(-1000, -1000, 2000, 2000));
VerifyTilesCoverNonContainedRect(0.5f, gfx::Rect(-1000, -1000, 2000, 2000));
// Partially covering content, but too large
VerifyTilesCoverNonContainedRect(1.0f, gfx::Rect(-1000, 100, 2000, 100));
VerifyTilesCoverNonContainedRect(1.5f, gfx::Rect(-1000, 100, 2000, 100));
VerifyTilesCoverNonContainedRect(0.5f, gfx::Rect(-1000, 100, 2000, 100));
}
TEST(PictureLayerTilingTest, SkewportLimits) {
FakePictureLayerTilingClient client;
gfx::Rect viewport(0, 0, 100, 100);
gfx::Size layer_bounds(200, 200);
client.SetTileSize(gfx::Size(100, 100));
LayerTreeSettings settings;
settings.skewport_extrapolation_limit_in_content_pixels = 75;
scoped_refptr<FakeDisplayListRasterSource> raster_source =
FakeDisplayListRasterSource::CreateFilled(layer_bounds);
scoped_ptr<TestablePictureLayerTiling> tiling =
TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, raster_source,
&client, settings);
tiling->ComputeTilePriorityRects(viewport, 1.f, 1.0, Occlusion());
// Move viewport down 50 pixels in 0.5 seconds.
gfx::Rect down_skewport =
tiling->ComputeSkewport(1.5, gfx::Rect(0, 50, 100, 100));
EXPECT_EQ(0, down_skewport.x());
EXPECT_EQ(50, down_skewport.y());
EXPECT_EQ(100, down_skewport.width());
EXPECT_EQ(175, down_skewport.height());
EXPECT_TRUE(down_skewport.Contains(gfx::Rect(0, 50, 100, 100)));
// Move viewport down 50 and right 10 pixels.
gfx::Rect down_right_skewport =
tiling->ComputeSkewport(1.5, gfx::Rect(10, 50, 100, 100));
EXPECT_EQ(10, down_right_skewport.x());
EXPECT_EQ(50, down_right_skewport.y());
EXPECT_EQ(120, down_right_skewport.width());
EXPECT_EQ(175, down_right_skewport.height());
EXPECT_TRUE(down_right_skewport.Contains(gfx::Rect(10, 50, 100, 100)));
// Move viewport left.
gfx::Rect left_skewport =
tiling->ComputeSkewport(1.5, gfx::Rect(-50, 0, 100, 100));
EXPECT_EQ(-125, left_skewport.x());
EXPECT_EQ(0, left_skewport.y());
EXPECT_EQ(175, left_skewport.width());
EXPECT_EQ(100, left_skewport.height());
EXPECT_TRUE(left_skewport.Contains(gfx::Rect(-50, 0, 100, 100)));
// Expand viewport.
gfx::Rect expand_skewport =
tiling->ComputeSkewport(1.5, gfx::Rect(-50, -50, 200, 200));
// x and y moved by -75 (-50 - 75 = -125).
// right side and bottom side moved by 75 [(350 - 125) - (200 - 50) = 75].
EXPECT_EQ(-125, expand_skewport.x());
EXPECT_EQ(-125, expand_skewport.y());
EXPECT_EQ(350, expand_skewport.width());
EXPECT_EQ(350, expand_skewport.height());
EXPECT_TRUE(expand_skewport.Contains(gfx::Rect(-50, -50, 200, 200)));
// Expand the viewport past the limit in all directions.
gfx::Rect big_expand_skewport =
tiling->ComputeSkewport(1.5, gfx::Rect(-500, -500, 1500, 1500));
EXPECT_EQ(-575, big_expand_skewport.x());
EXPECT_EQ(-575, big_expand_skewport.y());
EXPECT_EQ(1650, big_expand_skewport.width());
EXPECT_EQ(1650, big_expand_skewport.height());
EXPECT_TRUE(big_expand_skewport.Contains(gfx::Rect(-500, -500, 1500, 1500)));
// Shrink the skewport in all directions.
gfx::Rect shrink_viewport =
tiling->ComputeSkewport(1.5, gfx::Rect(0, 0, 100, 100));
EXPECT_EQ(0, shrink_viewport.x());
EXPECT_EQ(0, shrink_viewport.y());
EXPECT_EQ(100, shrink_viewport.width());
EXPECT_EQ(100, shrink_viewport.height());
// Move the skewport really far in one direction.
gfx::Rect move_skewport_far =
tiling->ComputeSkewport(1.5, gfx::Rect(0, 5000, 100, 100));
EXPECT_EQ(0, move_skewport_far.x());
EXPECT_EQ(5000, move_skewport_far.y());
EXPECT_EQ(100, move_skewport_far.width());
EXPECT_EQ(175, move_skewport_far.height());
EXPECT_TRUE(move_skewport_far.Contains(gfx::Rect(0, 5000, 100, 100)));
}
TEST(PictureLayerTilingTest, ComputeSkewportExtremeCases) {
FakePictureLayerTilingClient client;
gfx::Size layer_bounds(200, 200);
client.SetTileSize(gfx::Size(100, 100));
LayerTreeSettings settings;
scoped_refptr<FakeDisplayListRasterSource> raster_source =
FakeDisplayListRasterSource::CreateFilled(layer_bounds);
scoped_ptr<TestablePictureLayerTiling> tiling =
TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, raster_source,
&client, settings);
gfx::Rect viewport1(-1918, 255860, 4010, 2356);
gfx::Rect viewport2(-7088, -91738, 14212, 8350);
gfx::Rect viewport3(-12730024, -158883296, 24607540, 14454512);
double time = 1.0;
tiling->ComputeTilePriorityRects(viewport1, 1.f, time, Occlusion());
time += 0.016;
EXPECT_TRUE(tiling->ComputeSkewport(time, viewport2).Contains(viewport2));
tiling->ComputeTilePriorityRects(viewport2, 1.f, time, Occlusion());
time += 0.016;
EXPECT_TRUE(tiling->ComputeSkewport(time, viewport3).Contains(viewport3));
// Use a tiling with a large scale, so the viewport times the scale no longer
// fits into integers, and the viewport is not anywhere close to the tiling.
tiling = TestablePictureLayerTiling::Create(ACTIVE_TREE, 1000.0f,
raster_source, &client, settings);
tiling->ComputeTilePriorityRects(viewport3, 1.f, time, Occlusion());
EXPECT_EQ(gfx::Rect(), tiling->GetCurrentVisibleRectForTesting());
}
TEST(PictureLayerTilingTest, ComputeSkewport) {
FakePictureLayerTilingClient client;
gfx::Rect viewport(0, 0, 100, 100);
gfx::Size layer_bounds(200, 200);
client.SetTileSize(gfx::Size(100, 100));
scoped_refptr<FakeDisplayListRasterSource> raster_source =
FakeDisplayListRasterSource::CreateFilled(layer_bounds);
scoped_ptr<TestablePictureLayerTiling> tiling =
TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, raster_source,
&client, LayerTreeSettings());
tiling->ComputeTilePriorityRects(viewport, 1.f, 1.0, Occlusion());
// Move viewport down 50 pixels in 0.5 seconds.
gfx::Rect down_skewport =
tiling->ComputeSkewport(1.5, gfx::Rect(0, 50, 100, 100));
EXPECT_EQ(0, down_skewport.x());
EXPECT_EQ(50, down_skewport.y());
EXPECT_EQ(100, down_skewport.width());
EXPECT_EQ(200, down_skewport.height());
// Shrink viewport.
gfx::Rect shrink_skewport =
tiling->ComputeSkewport(1.5, gfx::Rect(25, 25, 50, 50));
EXPECT_EQ(25, shrink_skewport.x());
EXPECT_EQ(25, shrink_skewport.y());
EXPECT_EQ(50, shrink_skewport.width());
EXPECT_EQ(50, shrink_skewport.height());
// Move viewport down 50 and right 10 pixels.
gfx::Rect down_right_skewport =
tiling->ComputeSkewport(1.5, gfx::Rect(10, 50, 100, 100));
EXPECT_EQ(10, down_right_skewport.x());
EXPECT_EQ(50, down_right_skewport.y());
EXPECT_EQ(120, down_right_skewport.width());
EXPECT_EQ(200, down_right_skewport.height());
// Move viewport left.
gfx::Rect left_skewport =
tiling->ComputeSkewport(1.5, gfx::Rect(-20, 0, 100, 100));
EXPECT_EQ(-60, left_skewport.x());
EXPECT_EQ(0, left_skewport.y());
EXPECT_EQ(140, left_skewport.width());
EXPECT_EQ(100, left_skewport.height());
// Expand viewport in 0.2 seconds.
gfx::Rect expanded_skewport =
tiling->ComputeSkewport(1.2, gfx::Rect(-5, -5, 110, 110));
EXPECT_EQ(-30, expanded_skewport.x());
EXPECT_EQ(-30, expanded_skewport.y());
EXPECT_EQ(160, expanded_skewport.width());
EXPECT_EQ(160, expanded_skewport.height());
}
TEST(PictureLayerTilingTest, SkewportThroughUpdateTilePriorities) {
FakePictureLayerTilingClient client;
gfx::Rect viewport(0, 0, 100, 100);
gfx::Size layer_bounds(200, 200);
client.SetTileSize(gfx::Size(100, 100));
scoped_refptr<FakeDisplayListRasterSource> raster_source =
FakeDisplayListRasterSource::CreateFilled(layer_bounds);
scoped_ptr<TestablePictureLayerTiling> tiling =
TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, raster_source,
&client, LayerTreeSettings());
tiling->ComputeTilePriorityRects(viewport, 1.f, 1.0, Occlusion());
// Move viewport down 50 pixels in 0.5 seconds.
gfx::Rect viewport_50 = gfx::Rect(0, 50, 100, 100);
gfx::Rect skewport_50 = tiling->ComputeSkewport(1.5, viewport_50);
EXPECT_EQ(gfx::Rect(0, 50, 100, 200), skewport_50);
tiling->ComputeTilePriorityRects(viewport_50, 1.f, 1.5, Occlusion());
gfx::Rect viewport_100 = gfx::Rect(0, 100, 100, 100);
gfx::Rect skewport_100 = tiling->ComputeSkewport(2.0, viewport_100);
EXPECT_EQ(gfx::Rect(0, 100, 100, 200), skewport_100);
tiling->ComputeTilePriorityRects(viewport_100, 1.f, 2.0, Occlusion());
// Advance time, but not the viewport.
gfx::Rect result = tiling->ComputeSkewport(2.5, viewport_100);
// Since the history did advance, we should still get a skewport but a smaller
// one.
EXPECT_EQ(gfx::Rect(0, 100, 100, 150), result);
tiling->ComputeTilePriorityRects(viewport_100, 1.f, 2.5, Occlusion());
// Advance time again.
result = tiling->ComputeSkewport(3.0, viewport_100);
EXPECT_EQ(viewport_100, result);
tiling->ComputeTilePriorityRects(viewport_100, 1.f, 3.0, Occlusion());
// Ensure we have a skewport.
gfx::Rect viewport_150 = gfx::Rect(0, 150, 100, 100);
gfx::Rect skewport_150 = tiling->ComputeSkewport(3.5, viewport_150);
EXPECT_EQ(gfx::Rect(0, 150, 100, 150), skewport_150);
tiling->ComputeTilePriorityRects(viewport_150, 1.f, 3.5, Occlusion());
// Advance the viewport, but not the time.
gfx::Rect viewport_200 = gfx::Rect(0, 200, 100, 100);
gfx::Rect skewport_200 = tiling->ComputeSkewport(3.5, viewport_200);
EXPECT_EQ(gfx::Rect(0, 200, 100, 300), skewport_200);
// Ensure that continued calls with the same value, produce the same skewport.
tiling->ComputeTilePriorityRects(viewport_150, 1.f, 3.5, Occlusion());
EXPECT_EQ(gfx::Rect(0, 200, 100, 300), skewport_200);
tiling->ComputeTilePriorityRects(viewport_150, 1.f, 3.5, Occlusion());
EXPECT_EQ(gfx::Rect(0, 200, 100, 300), skewport_200);
tiling->ComputeTilePriorityRects(viewport_200, 1.f, 3.5, Occlusion());
// This should never happen, but advance the viewport yet again keeping the
// time the same.
gfx::Rect viewport_250 = gfx::Rect(0, 250, 100, 100);
gfx::Rect skewport_250 = tiling->ComputeSkewport(3.5, viewport_250);
EXPECT_EQ(viewport_250, skewport_250);
tiling->ComputeTilePriorityRects(viewport_250, 1.f, 3.5, Occlusion());
}
TEST(PictureLayerTilingTest, ViewportDistanceWithScale) {
FakePictureLayerTilingClient client;
gfx::Rect viewport(0, 0, 100, 100);
gfx::Size layer_bounds(1500, 1500);
client.SetTileSize(gfx::Size(10, 10));
LayerTreeSettings settings;
// Tiling at 0.25 scale: this should create 47x47 tiles of size 10x10.
// The reason is that each tile has a one pixel border, so tile at (1, 2)
// for instance begins at (8, 16) pixels. So tile at (46, 46) will begin at
// (368, 368) and extend to the end of 1500 * 0.25 = 375 edge of the
// tiling.
scoped_refptr<FakeDisplayListRasterSource> raster_source =
FakeDisplayListRasterSource::CreateFilled(layer_bounds);
scoped_ptr<TestablePictureLayerTiling> tiling =
TestablePictureLayerTiling::Create(ACTIVE_TREE, 0.25f, raster_source,
&client, settings);
tiling->set_resolution(HIGH_RESOLUTION);
gfx::Rect viewport_in_content_space =
gfx::ScaleToEnclosedRect(viewport, 0.25f);
tiling->ComputeTilePriorityRects(viewport, 1.f, 1.0, Occlusion());
auto prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
// Compute the soon border.
float inset = PictureLayerTiling::CalculateSoonBorderDistance(
viewport_in_content_space, 1.0f / 0.25f);
gfx::Rect soon_rect_in_content_space = viewport_in_content_space;
soon_rect_in_content_space.Inset(-inset, -inset);
// Sanity checks.
for (int i = 0; i < 47; ++i) {
for (int j = 0; j < 47; ++j) {
EXPECT_TRUE(tiling->TileAt(i, j)) << "i: " << i << " j: " << j;
}
}
for (int i = 0; i < 47; ++i) {
EXPECT_FALSE(tiling->TileAt(i, 47)) << "i: " << i;
EXPECT_FALSE(tiling->TileAt(47, i)) << "i: " << i;
}
// No movement in the viewport implies that tiles will either be NOW
// or EVENTUALLY, with the exception of tiles that are between 0 and 312
// pixels away from the viewport, which will be in the SOON bin.
bool have_now = false;
bool have_eventually = false;
bool have_soon = false;
for (int i = 0; i < 47; ++i) {
for (int j = 0; j < 47; ++j) {
Tile* tile = tiling->TileAt(i, j);
PrioritizedTile prioritized_tile = prioritized_tiles[tile];
TilePriority priority = prioritized_tile.priority();
gfx::Rect tile_rect = tiling->TilingDataForTesting().TileBounds(i, j);
if (viewport_in_content_space.Intersects(tile_rect)) {
EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
have_now = true;
} else if (soon_rect_in_content_space.Intersects(tile_rect)) {
EXPECT_EQ(TilePriority::SOON, priority.priority_bin);
have_soon = true;
} else {
EXPECT_EQ(TilePriority::EVENTUALLY, priority.priority_bin);
EXPECT_GT(priority.distance_to_visible, 0.f);
have_eventually = true;
}
}
}
EXPECT_TRUE(have_now);
EXPECT_TRUE(have_soon);
EXPECT_TRUE(have_eventually);
// Spot check some distances.
// Tile at 5, 1 should begin at 41x9 in content space (without borders),
// so the distance to a viewport that ends at 25x25 in content space
// should be 17 (41 - 25 + 1). In layer space, then that should be
// 17 / 0.25 = 68 pixels.
// We can verify that the content rect (with borders) is one pixel off
// 41,9 8x8 on all sides.
EXPECT_EQ(tiling->TileAt(5, 1)->content_rect().ToString(), "40,8 10x10");
TilePriority priority = prioritized_tiles[tiling->TileAt(5, 1)].priority();
EXPECT_FLOAT_EQ(68.f, priority.distance_to_visible);
priority = prioritized_tiles[tiling->TileAt(2, 5)].priority();
EXPECT_FLOAT_EQ(68.f, priority.distance_to_visible);
priority = prioritized_tiles[tiling->TileAt(3, 4)].priority();
EXPECT_FLOAT_EQ(40.f, priority.distance_to_visible);
// Move the viewport down 40 pixels.
viewport = gfx::Rect(0, 40, 100, 100);
viewport_in_content_space = gfx::ScaleToEnclosedRect(viewport, 0.25f);
gfx::Rect skewport = tiling->ComputeSkewport(2.0, viewport_in_content_space);
// Compute the soon border.
inset = PictureLayerTiling::CalculateSoonBorderDistance(
viewport_in_content_space, 1.0f / 0.25f);
soon_rect_in_content_space = viewport_in_content_space;
soon_rect_in_content_space.Inset(-inset, -inset);
EXPECT_EQ(0, skewport.x());
EXPECT_EQ(10, skewport.y());
EXPECT_EQ(25, skewport.width());
EXPECT_EQ(35, skewport.height());
tiling->ComputeTilePriorityRects(viewport, 1.f, 2.0, Occlusion());
prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
have_now = false;
have_eventually = false;
have_soon = false;
// Viewport moved, so we expect to find some NOW tiles, some SOON tiles and
// some EVENTUALLY tiles.
for (int i = 0; i < 47; ++i) {
for (int j = 0; j < 47; ++j) {
Tile* tile = tiling->TileAt(i, j);
TilePriority priority = prioritized_tiles[tile].priority();
gfx::Rect tile_rect = tiling->TilingDataForTesting().TileBounds(i, j);
if (viewport_in_content_space.Intersects(tile_rect)) {
EXPECT_EQ(TilePriority::NOW, priority.priority_bin) << "i: " << i
<< " j: " << j;
EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible) << "i: " << i
<< " j: " << j;
have_now = true;
} else if (skewport.Intersects(tile_rect) ||
soon_rect_in_content_space.Intersects(tile_rect)) {
EXPECT_EQ(TilePriority::SOON, priority.priority_bin) << "i: " << i
<< " j: " << j;
EXPECT_GT(priority.distance_to_visible, 0.f) << "i: " << i
<< " j: " << j;
have_soon = true;
} else {
EXPECT_EQ(TilePriority::EVENTUALLY, priority.priority_bin)
<< "i: " << i << " j: " << j;
EXPECT_GT(priority.distance_to_visible, 0.f) << "i: " << i
<< " j: " << j;
have_eventually = true;
}
}
}
EXPECT_TRUE(have_now);
EXPECT_TRUE(have_soon);
EXPECT_TRUE(have_eventually);
priority = prioritized_tiles[tiling->TileAt(5, 1)].priority();
EXPECT_FLOAT_EQ(68.f, priority.distance_to_visible);
priority = prioritized_tiles[tiling->TileAt(2, 5)].priority();
EXPECT_FLOAT_EQ(28.f, priority.distance_to_visible);
priority = prioritized_tiles[tiling->TileAt(3, 4)].priority();
EXPECT_FLOAT_EQ(4.f, priority.distance_to_visible);
// Change the underlying layer scale.
tiling->ComputeTilePriorityRects(viewport, 2.0f, 3.0, Occlusion());
prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
priority = prioritized_tiles[tiling->TileAt(5, 1)].priority();
EXPECT_FLOAT_EQ(136.f, priority.distance_to_visible);
priority = prioritized_tiles[tiling->TileAt(2, 5)].priority();
EXPECT_FLOAT_EQ(56.f, priority.distance_to_visible);
priority = prioritized_tiles[tiling->TileAt(3, 4)].priority();
EXPECT_FLOAT_EQ(8.f, priority.distance_to_visible);