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
|
// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/layers/ui_resource_layer_impl.h"
#include <memory>
#include "base/trace_event/traced_value.h"
#include "cc/base/math_util.h"
#include "cc/trees/layer_tree_impl.h"
#include "cc/trees/occlusion.h"
#include "components/viz/common/quads/texture_draw_quad.h"
#include "ui/gfx/geometry/rect_f.h"
namespace cc {
UIResourceLayerImpl::UIResourceLayerImpl(LayerTreeImpl* tree_impl, int id)
: LayerImpl(tree_impl, id),
ui_resource_id_(0),
uv_top_left_(0.f, 0.f),
uv_bottom_right_(1.f, 1.f) {
}
UIResourceLayerImpl::~UIResourceLayerImpl() = default;
mojom::LayerType UIResourceLayerImpl::GetLayerType() const {
return mojom::LayerType::kUIResource;
}
std::unique_ptr<LayerImpl> UIResourceLayerImpl::CreateLayerImpl(
LayerTreeImpl* tree_impl) const {
return UIResourceLayerImpl::Create(tree_impl, id());
}
void UIResourceLayerImpl::PushPropertiesTo(LayerImpl* layer) {
LayerImpl::PushPropertiesTo(layer);
UIResourceLayerImpl* layer_impl = static_cast<UIResourceLayerImpl*>(layer);
layer_impl->SetUIResourceId(ui_resource_id_);
layer_impl->SetImageBounds(image_bounds_);
layer_impl->SetUV(uv_top_left_, uv_bottom_right_);
}
void UIResourceLayerImpl::SetUIResourceId(UIResourceId uid) {
if (uid == ui_resource_id_)
return;
ui_resource_id_ = uid;
NoteLayerPropertyChanged();
}
void UIResourceLayerImpl::SetImageBounds(const gfx::Size& image_bounds) {
// This check imposes an ordering on the call sequence. An UIResource must
// exist before SetImageBounds can be called.
DCHECK(ui_resource_id_);
if (image_bounds_ == image_bounds)
return;
image_bounds_ = image_bounds;
NoteLayerPropertyChanged();
}
void UIResourceLayerImpl::SetUV(const gfx::PointF& top_left,
const gfx::PointF& bottom_right) {
if (uv_top_left_ == top_left && uv_bottom_right_ == bottom_right)
return;
uv_top_left_ = top_left;
uv_bottom_right_ = bottom_right;
NoteLayerPropertyChanged();
}
bool UIResourceLayerImpl::WillDraw(
DrawMode draw_mode,
viz::ClientResourceProvider* resource_provider) {
if (!ui_resource_id_ || draw_mode == DRAW_MODE_RESOURCELESS_SOFTWARE)
return false;
return LayerImpl::WillDraw(draw_mode, resource_provider);
}
void UIResourceLayerImpl::AppendQuads(const AppendQuadsContext& context,
viz::CompositorRenderPass* render_pass,
AppendQuadsData* append_quads_data) {
DCHECK(!bounds().IsEmpty());
viz::SharedQuadState* shared_quad_state =
render_pass->CreateAndAppendSharedQuadState();
viz::ResourceId resource =
ui_resource_id_
? layer_tree_impl()->ResourceIdForUIResource(ui_resource_id_)
: viz::kInvalidResourceId;
bool are_contents_opaque =
resource && (layer_tree_impl()->IsUIResourceOpaque(ui_resource_id_) ||
contents_opaque());
PopulateSharedQuadState(shared_quad_state, are_contents_opaque);
AppendDebugBorderQuad(render_pass, gfx::Rect(bounds()), shared_quad_state,
append_quads_data);
if (!resource)
return;
static const bool nearest_neighbor = false;
gfx::Rect quad_rect(bounds());
bool needs_blending = !are_contents_opaque;
gfx::Rect visible_quad_rect =
draw_properties().occlusion_in_content_space.GetUnoccludedContentRect(
quad_rect);
if (visible_quad_rect.IsEmpty())
return;
auto* quad = render_pass->CreateAndAppendDrawQuad<viz::TextureDrawQuad>();
quad->SetNew(shared_quad_state, quad_rect, visible_quad_rect, needs_blending,
resource, uv_top_left_, uv_bottom_right_, SkColors::kTransparent,
nearest_neighbor,
/*secure_output_only=*/false, gfx::ProtectedVideoType::kClear);
ValidateQuadResources(quad);
}
void UIResourceLayerImpl::AsValueInto(
base::trace_event::TracedValue* state) const {
LayerImpl::AsValueInto(state);
MathUtil::AddToTracedValue("ImageBounds", image_bounds_, state);
MathUtil::AddToTracedValue("UVTopLeft", uv_top_left_, state);
MathUtil::AddToTracedValue("UVBottomRight", uv_bottom_right_, state);
}
} // namespace cc
|
