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Issue 2748263002: Move cc::DisplayItemList and related classes into cc/paint/ (Closed)
Patch Set: Merge branch 'master' into ccpaint Created 3 years, 9 months ago
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1 // Copyright 2014 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/playback/recording_source.h"
6
7 #include <stdint.h>
8
9 #include <algorithm>
10
11 #include "base/numerics/safe_math.h"
12 #include "cc/base/region.h"
13 #include "cc/layers/content_layer_client.h"
14 #include "cc/playback/display_item_list.h"
15 #include "cc/playback/raster_source.h"
16 #include "skia/ext/analysis_canvas.h"
17
18 namespace {
19
20 #ifdef NDEBUG
21 const bool kDefaultClearCanvasSetting = false;
22 #else
23 const bool kDefaultClearCanvasSetting = true;
24 #endif
25
26 } // namespace
27
28 namespace cc {
29
30 RecordingSource::RecordingSource()
31 : slow_down_raster_scale_factor_for_debug_(0),
32 generate_discardable_images_metadata_(false),
33 requires_clear_(false),
34 is_solid_color_(false),
35 clear_canvas_with_debug_color_(kDefaultClearCanvasSetting),
36 solid_color_(SK_ColorTRANSPARENT),
37 background_color_(SK_ColorTRANSPARENT) {}
38
39 RecordingSource::~RecordingSource() {}
40
41 void RecordingSource::UpdateInvalidationForNewViewport(
42 const gfx::Rect& old_recorded_viewport,
43 const gfx::Rect& new_recorded_viewport,
44 Region* invalidation) {
45 // Invalidate newly-exposed and no-longer-exposed areas.
46 Region newly_exposed_region(new_recorded_viewport);
47 newly_exposed_region.Subtract(old_recorded_viewport);
48 invalidation->Union(newly_exposed_region);
49
50 Region no_longer_exposed_region(old_recorded_viewport);
51 no_longer_exposed_region.Subtract(new_recorded_viewport);
52 invalidation->Union(no_longer_exposed_region);
53 }
54
55 void RecordingSource::FinishDisplayItemListUpdate() {
56 TRACE_EVENT0("cc", "RecordingSource::FinishDisplayItemListUpdate");
57 DetermineIfSolidColor();
58 display_list_->EmitTraceSnapshot();
59 if (generate_discardable_images_metadata_)
60 display_list_->GenerateDiscardableImagesMetadata();
61 }
62
63 void RecordingSource::SetNeedsDisplayRect(const gfx::Rect& layer_rect) {
64 if (!layer_rect.IsEmpty()) {
65 // Clamp invalidation to the layer bounds.
66 invalidation_.Union(gfx::IntersectRects(layer_rect, gfx::Rect(size_)));
67 }
68 }
69
70 bool RecordingSource::UpdateAndExpandInvalidation(
71 Region* invalidation,
72 const gfx::Size& layer_size,
73 const gfx::Rect& new_recorded_viewport) {
74 bool updated = false;
75
76 if (size_ != layer_size)
77 size_ = layer_size;
78
79 invalidation_.Swap(invalidation);
80 invalidation_.Clear();
81
82 if (new_recorded_viewport != recorded_viewport_) {
83 UpdateInvalidationForNewViewport(recorded_viewport_, new_recorded_viewport,
84 invalidation);
85 recorded_viewport_ = new_recorded_viewport;
86 updated = true;
87 }
88
89 if (!updated && !invalidation->Intersects(recorded_viewport_))
90 return false;
91
92 if (invalidation->IsEmpty())
93 return false;
94
95 return true;
96 }
97
98 void RecordingSource::UpdateDisplayItemList(
99 const scoped_refptr<DisplayItemList>& display_list,
100 const size_t& painter_reported_memory_usage) {
101 display_list_ = display_list;
102 painter_reported_memory_usage_ = painter_reported_memory_usage;
103
104 FinishDisplayItemListUpdate();
105 }
106
107 gfx::Size RecordingSource::GetSize() const {
108 return size_;
109 }
110
111 void RecordingSource::SetEmptyBounds() {
112 size_ = gfx::Size();
113 is_solid_color_ = false;
114
115 recorded_viewport_ = gfx::Rect();
116 display_list_ = nullptr;
117 painter_reported_memory_usage_ = 0;
118 }
119
120 void RecordingSource::SetSlowdownRasterScaleFactor(int factor) {
121 slow_down_raster_scale_factor_for_debug_ = factor;
122 }
123
124 void RecordingSource::SetGenerateDiscardableImagesMetadata(
125 bool generate_metadata) {
126 generate_discardable_images_metadata_ = generate_metadata;
127 }
128
129 void RecordingSource::SetBackgroundColor(SkColor background_color) {
130 background_color_ = background_color;
131 }
132
133 void RecordingSource::SetRequiresClear(bool requires_clear) {
134 requires_clear_ = requires_clear;
135 }
136
137 const DisplayItemList* RecordingSource::GetDisplayItemList() {
138 return display_list_.get();
139 }
140
141 scoped_refptr<RasterSource> RecordingSource::CreateRasterSource(
142 bool can_use_lcd_text) const {
143 return scoped_refptr<RasterSource>(
144 RasterSource::CreateFromRecordingSource(this, can_use_lcd_text));
145 }
146
147 void RecordingSource::DetermineIfSolidColor() {
148 DCHECK(display_list_);
149 is_solid_color_ = false;
150 solid_color_ = SK_ColorTRANSPARENT;
151
152 if (!display_list_->ShouldBeAnalyzedForSolidColor())
153 return;
154
155 TRACE_EVENT1("cc", "RecordingSource::DetermineIfSolidColor", "opcount",
156 display_list_->ApproximateOpCount());
157 gfx::Size layer_size = GetSize();
158 skia::AnalysisCanvas canvas(layer_size.width(), layer_size.height());
159 display_list_->Raster(&canvas, nullptr, gfx::Rect(layer_size), 1.f);
160 is_solid_color_ = canvas.GetColorIfSolid(&solid_color_);
161 }
162
163 } // namespace cc
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