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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "cc/tiles/picture_layer_tiling_set.h" | 5 #include "cc/tiles/picture_layer_tiling_set.h" |
6 | 6 |
7 #include <limits> | 7 #include <limits> |
8 #include <set> | 8 #include <set> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
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26 DCHECK_GT(float2, 0.f); | 26 DCHECK_GT(float2, 0.f); |
27 return float1 > float2 ? float1 / float2 : float2 / float1; | 27 return float1 > float2 ? float1 / float2 : float2 / float1; |
28 } | 28 } |
29 | 29 |
30 } // namespace | 30 } // namespace |
31 | 31 |
32 // static | 32 // static |
33 scoped_ptr<PictureLayerTilingSet> PictureLayerTilingSet::Create( | 33 scoped_ptr<PictureLayerTilingSet> PictureLayerTilingSet::Create( |
34 WhichTree tree, | 34 WhichTree tree, |
35 PictureLayerTilingClient* client, | 35 PictureLayerTilingClient* client, |
36 float tiling_interest_area_viewport_multiplier, | 36 size_t max_tiles_for_interest_area, |
37 float skewport_target_time_in_seconds, | 37 float skewport_target_time_in_seconds, |
38 int skewport_extrapolation_limit_in_content_pixels) { | 38 int skewport_extrapolation_limit_in_content_pixels) { |
39 return make_scoped_ptr(new PictureLayerTilingSet( | 39 return make_scoped_ptr(new PictureLayerTilingSet( |
40 tree, client, tiling_interest_area_viewport_multiplier, | 40 tree, client, max_tiles_for_interest_area, |
41 skewport_target_time_in_seconds, | 41 skewport_target_time_in_seconds, |
42 skewport_extrapolation_limit_in_content_pixels)); | 42 skewport_extrapolation_limit_in_content_pixels)); |
43 } | 43 } |
44 | 44 |
45 PictureLayerTilingSet::PictureLayerTilingSet( | 45 PictureLayerTilingSet::PictureLayerTilingSet( |
46 WhichTree tree, | 46 WhichTree tree, |
47 PictureLayerTilingClient* client, | 47 PictureLayerTilingClient* client, |
48 float tiling_interest_area_viewport_multiplier, | 48 size_t max_tiles_for_interest_area, |
49 float skewport_target_time_in_seconds, | 49 float skewport_target_time_in_seconds, |
50 int skewport_extrapolation_limit_in_content_pixels) | 50 int skewport_extrapolation_limit_in_content_pixels) |
51 : tiling_interest_area_viewport_multiplier_( | 51 : max_tiles_for_interest_area_(max_tiles_for_interest_area), |
52 tiling_interest_area_viewport_multiplier), | |
53 skewport_target_time_in_seconds_(skewport_target_time_in_seconds), | 52 skewport_target_time_in_seconds_(skewport_target_time_in_seconds), |
54 skewport_extrapolation_limit_in_content_pixels_( | 53 skewport_extrapolation_limit_in_content_pixels_( |
55 skewport_extrapolation_limit_in_content_pixels), | 54 skewport_extrapolation_limit_in_content_pixels), |
56 tree_(tree), | 55 tree_(tree), |
57 client_(client) { | 56 client_(client) { |
58 } | 57 } |
59 | 58 |
60 PictureLayerTilingSet::~PictureLayerTilingSet() { | 59 PictureLayerTilingSet::~PictureLayerTilingSet() { |
61 } | 60 } |
62 | 61 |
63 void PictureLayerTilingSet::CopyTilingsAndPropertiesFromPendingTwin( | 62 void PictureLayerTilingSet::CopyTilingsAndPropertiesFromPendingTwin( |
64 const PictureLayerTilingSet* pending_twin_set, | 63 const PictureLayerTilingSet* pending_twin_set, |
65 const scoped_refptr<RasterSource>& raster_source, | 64 const scoped_refptr<RasterSource>& raster_source, |
66 const Region& layer_invalidation) { | 65 const Region& layer_invalidation) { |
67 if (pending_twin_set->tilings_.empty()) { | 66 if (pending_twin_set->tilings_.empty()) { |
68 // If the twin (pending) tiling set is empty, it was not updated for the | 67 // If the twin (pending) tiling set is empty, it was not updated for the |
69 // current frame. So we drop tilings from our set as well, instead of | 68 // current frame. So we drop tilings from our set as well, instead of |
70 // leaving behind unshared tilings that are all non-ideal. | 69 // leaving behind unshared tilings that are all non-ideal. |
71 RemoveAllTilings(); | 70 RemoveAllTilings(); |
72 return; | 71 return; |
73 } | 72 } |
74 | 73 |
75 bool tiling_sort_required = false; | 74 bool tiling_sort_required = false; |
76 for (PictureLayerTiling* pending_twin_tiling : pending_twin_set->tilings_) { | 75 for (PictureLayerTiling* pending_twin_tiling : pending_twin_set->tilings_) { |
77 float contents_scale = pending_twin_tiling->contents_scale(); | 76 float contents_scale = pending_twin_tiling->contents_scale(); |
78 PictureLayerTiling* this_tiling = FindTilingWithScale(contents_scale); | 77 PictureLayerTiling* this_tiling = FindTilingWithScale(contents_scale); |
79 if (!this_tiling) { | 78 if (!this_tiling) { |
80 scoped_ptr<PictureLayerTiling> new_tiling = PictureLayerTiling::Create( | 79 scoped_ptr<PictureLayerTiling> new_tiling = PictureLayerTiling::Create( |
81 tree_, contents_scale, raster_source, client_, | 80 tree_, contents_scale, raster_source, client_, |
82 tiling_interest_area_viewport_multiplier_, | 81 max_tiles_for_interest_area_, skewport_target_time_in_seconds_, |
83 skewport_target_time_in_seconds_, | |
84 skewport_extrapolation_limit_in_content_pixels_); | 82 skewport_extrapolation_limit_in_content_pixels_); |
85 tilings_.push_back(new_tiling.Pass()); | 83 tilings_.push_back(new_tiling.Pass()); |
86 this_tiling = tilings_.back(); | 84 this_tiling = tilings_.back(); |
87 tiling_sort_required = true; | 85 tiling_sort_required = true; |
88 } | 86 } |
89 this_tiling->TakeTilesAndPropertiesFrom(pending_twin_tiling, | 87 this_tiling->TakeTilesAndPropertiesFrom(pending_twin_tiling, |
90 layer_invalidation); | 88 layer_invalidation); |
91 } | 89 } |
92 | 90 |
93 if (tiling_sort_required) | 91 if (tiling_sort_required) |
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254 PictureLayerTiling* PictureLayerTilingSet::AddTiling( | 252 PictureLayerTiling* PictureLayerTilingSet::AddTiling( |
255 float contents_scale, | 253 float contents_scale, |
256 scoped_refptr<RasterSource> raster_source) { | 254 scoped_refptr<RasterSource> raster_source) { |
257 for (size_t i = 0; i < tilings_.size(); ++i) { | 255 for (size_t i = 0; i < tilings_.size(); ++i) { |
258 DCHECK_NE(tilings_[i]->contents_scale(), contents_scale); | 256 DCHECK_NE(tilings_[i]->contents_scale(), contents_scale); |
259 DCHECK_EQ(tilings_[i]->raster_source(), raster_source.get()); | 257 DCHECK_EQ(tilings_[i]->raster_source(), raster_source.get()); |
260 } | 258 } |
261 | 259 |
262 tilings_.push_back(PictureLayerTiling::Create( | 260 tilings_.push_back(PictureLayerTiling::Create( |
263 tree_, contents_scale, raster_source, client_, | 261 tree_, contents_scale, raster_source, client_, |
264 tiling_interest_area_viewport_multiplier_, | 262 max_tiles_for_interest_area_, skewport_target_time_in_seconds_, |
265 skewport_target_time_in_seconds_, | |
266 skewport_extrapolation_limit_in_content_pixels_)); | 263 skewport_extrapolation_limit_in_content_pixels_)); |
267 PictureLayerTiling* appended = tilings_.back(); | 264 PictureLayerTiling* appended = tilings_.back(); |
268 | 265 |
269 tilings_.sort(LargestToSmallestScaleFunctor()); | 266 tilings_.sort(LargestToSmallestScaleFunctor()); |
270 return appended; | 267 return appended; |
271 } | 268 } |
272 | 269 |
273 int PictureLayerTilingSet::NumHighResTilings() const { | 270 int PictureLayerTilingSet::NumHighResTilings() const { |
274 return std::count_if(tilings_.begin(), tilings_.end(), | 271 return std::count_if(tilings_.begin(), tilings_.end(), |
275 [](PictureLayerTiling* tiling) { | 272 [](PictureLayerTiling* tiling) { |
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587 case LOWER_THAN_LOW_RES: | 584 case LOWER_THAN_LOW_RES: |
588 range = TilingRange(low_res_range.end, tilings_size); | 585 range = TilingRange(low_res_range.end, tilings_size); |
589 break; | 586 break; |
590 } | 587 } |
591 | 588 |
592 DCHECK_LE(range.start, range.end); | 589 DCHECK_LE(range.start, range.end); |
593 return range; | 590 return range; |
594 } | 591 } |
595 | 592 |
596 } // namespace cc | 593 } // namespace cc |
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