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/tile.h"
6
7 #include <algorithm>
8
9 #include "base/debug/trace_event_argument.h"
10 #include "cc/base/math_util.h"
11 #include "cc/debug/traced_value.h"
12 #include "cc/resources/tile_manager.h"
13 #include "third_party/khronos/GLES2/gl2.h"
14
15 namespace cc {
16
17 Tile::Id Tile::s_next_id_ = 0;
18
Tile(TileManager * tile_manager,PicturePileImpl * picture_pile,const gfx::Size & tile_size,const gfx::Rect & content_rect,float contents_scale,int layer_id,int source_frame_number,int flags)19 Tile::Tile(TileManager* tile_manager,
20 PicturePileImpl* picture_pile,
21 const gfx::Size& tile_size,
22 const gfx::Rect& content_rect,
23 float contents_scale,
24 int layer_id,
25 int source_frame_number,
26 int flags)
27 : RefCountedManaged<Tile>(tile_manager),
28 tile_manager_(tile_manager),
29 size_(tile_size),
30 content_rect_(content_rect),
31 contents_scale_(contents_scale),
32 layer_id_(layer_id),
33 source_frame_number_(source_frame_number),
34 flags_(flags),
35 is_shared_(false),
36 id_(s_next_id_++) {
37 set_picture_pile(picture_pile);
38 for (int i = 0; i < NUM_TREES; i++)
39 is_occluded_[i] = false;
40 }
41
~Tile()42 Tile::~Tile() {
43 TRACE_EVENT_OBJECT_DELETED_WITH_ID(
44 TRACE_DISABLED_BY_DEFAULT("cc.debug"),
45 "cc::Tile", this);
46 }
47
SetPriority(WhichTree tree,const TilePriority & priority)48 void Tile::SetPriority(WhichTree tree, const TilePriority& priority) {
49 if (priority == priority_[tree])
50 return;
51
52 priority_[tree] = priority;
53 tile_manager_->DidChangeTilePriority(this);
54 }
55
MarkRequiredForActivation()56 void Tile::MarkRequiredForActivation() {
57 if (priority_[PENDING_TREE].required_for_activation)
58 return;
59
60 priority_[PENDING_TREE].required_for_activation = true;
61 tile_manager_->DidChangeTilePriority(this);
62 }
63
AsValueInto(base::debug::TracedValue * res) const64 void Tile::AsValueInto(base::debug::TracedValue* res) const {
65 TracedValue::MakeDictIntoImplicitSnapshotWithCategory(
66 TRACE_DISABLED_BY_DEFAULT("cc.debug"), res, "cc::Tile", this);
67 TracedValue::SetIDRef(picture_pile_.get(), res, "picture_pile");
68 res->SetDouble("contents_scale", contents_scale_);
69
70 res->BeginArray("content_rect");
71 MathUtil::AddToTracedValue(content_rect_, res);
72 res->EndArray();
73
74 res->SetInteger("layer_id", layer_id_);
75
76 res->BeginDictionary("active_priority");
77 priority_[ACTIVE_TREE].AsValueInto(res);
78 res->EndDictionary();
79
80 res->BeginDictionary("pending_priority");
81 priority_[PENDING_TREE].AsValueInto(res);
82 res->EndDictionary();
83
84 res->BeginDictionary("managed_state");
85 managed_state_.AsValueInto(res);
86 res->EndDictionary();
87
88 res->SetBoolean("use_picture_analysis", use_picture_analysis());
89
90 res->SetInteger("gpu_memory_usage", GPUMemoryUsageInBytes());
91 }
92
GPUMemoryUsageInBytes() const93 size_t Tile::GPUMemoryUsageInBytes() const {
94 size_t total_size = 0;
95 for (int mode = 0; mode < NUM_RASTER_MODES; ++mode)
96 total_size += managed_state_.tile_versions[mode].GPUMemoryUsageInBytes();
97 return total_size;
98 }
99
DetermineRasterModeForTree(WhichTree tree) const100 RasterMode Tile::DetermineRasterModeForTree(WhichTree tree) const {
101 return DetermineRasterModeForResolution(priority(tree).resolution);
102 }
103
DetermineOverallRasterMode() const104 RasterMode Tile::DetermineOverallRasterMode() const {
105 return DetermineRasterModeForResolution(managed_state_.resolution);
106 }
107
DetermineRasterModeForResolution(TileResolution resolution) const108 RasterMode Tile::DetermineRasterModeForResolution(
109 TileResolution resolution) const {
110 RasterMode current_mode = managed_state_.raster_mode;
111 RasterMode raster_mode = resolution == LOW_RESOLUTION
112 ? LOW_QUALITY_RASTER_MODE
113 : HIGH_QUALITY_RASTER_MODE;
114 return std::min(raster_mode, current_mode);
115 }
116
HasRasterTask() const117 bool Tile::HasRasterTask() const {
118 for (int mode = 0; mode < NUM_RASTER_MODES; ++mode) {
119 if (managed_state_.tile_versions[mode].raster_task_.get())
120 return true;
121 }
122 return false;
123 }
124
125 } // namespace cc
126