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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
// Copyright 2014 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/surfaces/display.h"
#include "base/message_loop/message_loop.h"
#include "cc/output/compositor_frame.h"
#include "cc/output/direct_renderer.h"
#include "cc/output/gl_renderer.h"
#include "cc/output/software_renderer.h"
#include "cc/surfaces/display_client.h"
#include "cc/surfaces/surface.h"
namespace cc {
static ResourceProvider::ResourceId ResourceRemapHelper(
bool* invalid_frame,
const ResourceProvider::ResourceIdMap& child_to_parent_map,
ResourceProvider::ResourceIdArray* resources_in_frame,
ResourceProvider::ResourceId id) {
ResourceProvider::ResourceIdMap::const_iterator it =
child_to_parent_map.find(id);
if (it == child_to_parent_map.end()) {
*invalid_frame = true;
return 0;
}
DCHECK_EQ(it->first, id);
ResourceProvider::ResourceId remapped_id = it->second;
resources_in_frame->push_back(id);
return remapped_id;
}
Display::Display(DisplayClient* client,
SurfaceManager* manager,
SharedBitmapManager* bitmap_manager)
: client_(client),
manager_(manager),
aggregator_(manager),
bitmap_manager_(bitmap_manager) {
}
Display::~Display() {
}
void Display::Resize(const gfx::Size& size) {
current_surface_.reset(new Surface(manager_, this, size));
}
void Display::InitializeOutputSurface() {
if (output_surface_)
return;
scoped_ptr<OutputSurface> output_surface = client_->CreateOutputSurface();
if (!output_surface->BindToClient(this))
return;
int highp_threshold_min = 0;
bool use_rgba_4444_texture_format = false;
size_t id_allocation_chunk_size = 1;
bool use_distance_field_text = false;
scoped_ptr<ResourceProvider> resource_provider =
ResourceProvider::Create(output_surface.get(),
bitmap_manager_,
highp_threshold_min,
use_rgba_4444_texture_format,
id_allocation_chunk_size,
use_distance_field_text);
if (!resource_provider)
return;
LayerTreeSettings settings;
if (output_surface->context_provider()) {
TextureMailboxDeleter* texture_mailbox_deleter = NULL;
scoped_ptr<GLRenderer> renderer =
GLRenderer::Create(this,
&settings,
output_surface.get(),
resource_provider.get(),
texture_mailbox_deleter,
highp_threshold_min);
if (!renderer)
return;
renderer_ = renderer.Pass();
} else {
scoped_ptr<SoftwareRenderer> renderer = SoftwareRenderer::Create(
this, &settings, output_surface.get(), resource_provider.get());
if (!renderer)
return;
renderer_ = renderer.Pass();
}
output_surface_ = output_surface.Pass();
resource_provider_ = resource_provider.Pass();
child_id_ = resource_provider_->CreateChild(
base::Bind(&Display::ReturnResources, base::Unretained(this)));
}
bool Display::Draw() {
if (!current_surface_)
return false;
InitializeOutputSurface();
if (!output_surface_)
return false;
// TODO(jamesr): Use the surface aggregator instead.
scoped_ptr<DelegatedFrameData> frame_data(new DelegatedFrameData);
CompositorFrame* current_frame = current_surface_->GetEligibleFrame();
frame_data->resource_list =
current_frame->delegated_frame_data->resource_list;
RenderPass::CopyAll(current_frame->delegated_frame_data->render_pass_list,
&frame_data->render_pass_list);
if (frame_data->render_pass_list.empty())
return false;
const ResourceProvider::ResourceIdMap& resource_map =
resource_provider_->GetChildToParentMap(child_id_);
resource_provider_->ReceiveFromChild(child_id_, frame_data->resource_list);
bool invalid_frame = false;
ResourceProvider::ResourceIdArray resources_in_frame;
DrawQuad::ResourceIteratorCallback remap_resources_to_parent_callback =
base::Bind(&ResourceRemapHelper,
&invalid_frame,
resource_map,
&resources_in_frame);
for (size_t i = 0; i < frame_data->render_pass_list.size(); ++i) {
RenderPass* pass = frame_data->render_pass_list[i];
for (size_t j = 0; j < pass->quad_list.size(); ++j) {
DrawQuad* quad = pass->quad_list[j];
quad->IterateResources(remap_resources_to_parent_callback);
}
}
if (invalid_frame)
return false;
resource_provider_->DeclareUsedResourcesFromChild(child_id_,
resources_in_frame);
float device_scale_factor = 1.0f;
gfx::Rect device_viewport_rect = gfx::Rect(current_surface_->size());
gfx::Rect device_clip_rect = device_viewport_rect;
bool disable_picture_quad_image_filtering = false;
renderer_->DrawFrame(&frame_data->render_pass_list,
device_scale_factor,
device_viewport_rect,
device_clip_rect,
disable_picture_quad_image_filtering);
CompositorFrameMetadata metadata;
renderer_->SwapBuffers(metadata);
return true;
}
int Display::CurrentSurfaceID() {
return current_surface_ ? current_surface_->surface_id() : 0;
}
void Display::ReturnResources(const ReturnedResourceArray& resources) {
}
} // namespace cc
|
