blob: 6616b9b345a48f1063d87acc264e21f2162de143 (
plain)
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
|
// 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 "cc/layers/delegated_renderer_layer.h"
#include "cc/layers/delegated_renderer_layer_impl.h"
#include "cc/output/delegated_frame_data.h"
#include "cc/quads/render_pass_draw_quad.h"
#include "cc/trees/blocking_task_runner.h"
#include "cc/trees/layer_tree_host.h"
namespace cc {
scoped_refptr<DelegatedRendererLayer> DelegatedRendererLayer::Create(
const scoped_refptr<DelegatedFrameProvider>& frame_provider) {
return scoped_refptr<DelegatedRendererLayer>(
new DelegatedRendererLayer(frame_provider));
}
DelegatedRendererLayer::DelegatedRendererLayer(
const scoped_refptr<DelegatedFrameProvider>& frame_provider)
: Layer(),
frame_provider_(frame_provider),
should_collect_new_frame_(true),
frame_data_(NULL),
main_thread_runner_(BlockingTaskRunner::current()),
weak_ptrs_(this) {
frame_provider_->AddObserver(this);
}
DelegatedRendererLayer::~DelegatedRendererLayer() {
frame_provider_->RemoveObserver(this);
}
scoped_ptr<LayerImpl> DelegatedRendererLayer::CreateLayerImpl(
LayerTreeImpl* tree_impl) {
return DelegatedRendererLayerImpl::Create(
tree_impl, layer_id_).PassAs<LayerImpl>();
}
void DelegatedRendererLayer::SetLayerTreeHost(LayerTreeHost* host) {
if (layer_tree_host() == host) {
Layer::SetLayerTreeHost(host);
return;
}
if (!host) {
// The active frame needs to be removed from the active tree and resources
// returned before the commit is called complete.
// TODO(danakj): Don't need to do this if the last frame commited was empty
// or we never commited a frame with resources.
SetNextCommitWaitsForActivation();
} else {
// There is no active frame in the new layer tree host to wait for so no
// need to call SetNextCommitWaitsForActivation().
should_collect_new_frame_ = true;
SetNeedsUpdate();
}
Layer::SetLayerTreeHost(host);
}
void DelegatedRendererLayer::PushPropertiesTo(LayerImpl* impl) {
Layer::PushPropertiesTo(impl);
DelegatedRendererLayerImpl* delegated_impl =
static_cast<DelegatedRendererLayerImpl*>(impl);
delegated_impl->SetDisplaySize(display_size_);
delegated_impl->CreateChildIdIfNeeded(
frame_provider_->GetReturnResourcesCallbackForImplThread());
if (frame_data_)
delegated_impl->SetFrameData(frame_data_, frame_damage_);
frame_data_ = NULL;
frame_damage_ = gfx::RectF();
}
void DelegatedRendererLayer::ProviderHasNewFrame() {
should_collect_new_frame_ = true;
SetNeedsUpdate();
// The active frame needs to be replaced and resources returned before the
// commit is called complete.
SetNextCommitWaitsForActivation();
}
void DelegatedRendererLayer::SetDisplaySize(gfx::Size size) {
if (display_size_ == size)
return;
display_size_ = size;
SetNeedsCommit();
}
static bool FrameDataRequiresFilterContext(const DelegatedFrameData* frame) {
for (size_t i = 0; i < frame->render_pass_list.size(); ++i) {
const QuadList& quad_list = frame->render_pass_list[i]->quad_list;
for (size_t j = 0; j < quad_list.size(); ++j) {
if (quad_list[j]->shared_quad_state->blend_mode !=
SkXfermode::kSrcOver_Mode)
return true;
if (quad_list[j]->material != DrawQuad::RENDER_PASS)
continue;
const RenderPassDrawQuad* render_pass_quad =
RenderPassDrawQuad::MaterialCast(quad_list[j]);
if (!render_pass_quad->filters.IsEmpty() ||
!render_pass_quad->background_filters.IsEmpty())
return true;
}
}
return false;
}
bool DelegatedRendererLayer::Update(ResourceUpdateQueue* queue,
const OcclusionTracker* occlusion) {
bool updated = Layer::Update(queue, occlusion);
if (!should_collect_new_frame_)
return updated;
frame_data_ =
frame_provider_->GetFrameDataAndRefResources(this, &frame_damage_);
should_collect_new_frame_ = false;
// If any quad has a filter operation or a blend mode other than normal,
// then we need an offscreen context to draw this layer's content.
if (FrameDataRequiresFilterContext(frame_data_))
layer_tree_host()->set_needs_filter_context();
SetNeedsPushProperties();
return true;
}
} // namespace cc
|
