blob: 6f8fc72c7b7f63f274b06b11eb4ba99f677c7c00 (
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
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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
// Copyright 2015 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 "device/vr/vr_device_manager.h"
#include <utility>
#include "base/bind.h"
#include "base/memory/ptr_util.h"
#include "base/memory/singleton.h"
#include "build/build_config.h"
#if defined(OS_ANDROID)
#include "device/vr/android/gvr/gvr_device_provider.h"
#endif
namespace device {
namespace {
VRDeviceManager* g_vr_device_manager = nullptr;
}
VRDeviceManager::VRDeviceManager()
: vr_initialized_(false),
keep_alive_(false),
has_scheduled_poll_(false),
has_activate_listeners_(false) {
// Register VRDeviceProviders for the current platform
#if defined(OS_ANDROID)
RegisterProvider(base::MakeUnique<GvrDeviceProvider>());
#endif
}
VRDeviceManager::VRDeviceManager(std::unique_ptr<VRDeviceProvider> provider)
: vr_initialized_(false), keep_alive_(true), has_scheduled_poll_(false) {
thread_checker_.DetachFromThread();
RegisterProvider(std::move(provider));
SetInstance(this);
}
VRDeviceManager::~VRDeviceManager() {
DCHECK(thread_checker_.CalledOnValidThread());
StopSchedulingPollEvents();
g_vr_device_manager = nullptr;
}
VRDeviceManager* VRDeviceManager::GetInstance() {
if (!g_vr_device_manager)
g_vr_device_manager = new VRDeviceManager();
return g_vr_device_manager;
}
void VRDeviceManager::SetInstance(VRDeviceManager* instance) {
// Unit tests can create multiple instances but only one should exist at any
// given time so g_vr_device_manager should only go from nullptr to
// non-nullptr and vice versa.
CHECK_NE(!!instance, !!g_vr_device_manager);
g_vr_device_manager = instance;
}
bool VRDeviceManager::HasInstance() {
// For testing. Checks to see if a VRDeviceManager instance is active.
return !!g_vr_device_manager;
}
void VRDeviceManager::AddService(VRServiceImpl* service) {
// Loop through any currently active devices and send Connected messages to
// the service. Future devices that come online will send a Connected message
// when they are created.
GetVRDevices(service);
services_.insert(service);
}
void VRDeviceManager::RemoveService(VRServiceImpl* service) {
if (service->listening_for_activate()) {
ListeningForActivateChanged(false);
}
services_.erase(service);
if (services_.empty() && !keep_alive_) {
// Delete the device manager when it has no active connections.
delete g_vr_device_manager;
}
}
bool VRDeviceManager::GetVRDevices(VRServiceImpl* service) {
DCHECK(thread_checker_.CalledOnValidThread());
InitializeProviders();
std::vector<VRDevice*> devices;
for (const auto& provider : providers_)
provider->GetDevices(&devices);
if (devices.empty())
return false;
for (auto* device : devices) {
if (device->id() == VR_DEVICE_LAST_ID)
continue;
if (devices_.find(device->id()) == devices_.end())
devices_[device->id()] = device;
// Create a VRDisplayImpl for this service/device pair and attach
// the VRDisplayImpl to the device.
VRDisplayImpl* display_impl = service->GetVRDisplayImpl(device);
device->AddDisplay(display_impl);
}
return true;
}
unsigned int VRDeviceManager::GetNumberOfConnectedDevices() {
DCHECK(thread_checker_.CalledOnValidThread());
return static_cast<unsigned int>(devices_.size());
}
void VRDeviceManager::ListeningForActivateChanged(bool listening) {
DCHECK(thread_checker_.CalledOnValidThread());
bool activate_listeners = listening;
if (!activate_listeners) {
for (auto* service : services_) {
if (service->listening_for_activate()) {
activate_listeners = true;
break;
}
}
}
// Notify all the providers if this changes
if (has_activate_listeners_ != activate_listeners) {
has_activate_listeners_ = activate_listeners;
for (const auto& provider : providers_)
provider->SetListeningForActivate(has_activate_listeners_);
}
}
VRDevice* VRDeviceManager::GetDevice(unsigned int index) {
DCHECK(thread_checker_.CalledOnValidThread());
if (index == 0) {
return NULL;
}
DeviceMap::iterator iter = devices_.find(index);
if (iter == devices_.end()) {
return nullptr;
}
return iter->second;
}
void VRDeviceManager::InitializeProviders() {
if (vr_initialized_) {
return;
}
for (const auto& provider : providers_) {
provider->Initialize();
}
vr_initialized_ = true;
}
void VRDeviceManager::RegisterProvider(
std::unique_ptr<VRDeviceProvider> provider) {
providers_.push_back(std::move(provider));
}
void VRDeviceManager::SchedulePollEvents() {
if (has_scheduled_poll_)
return;
has_scheduled_poll_ = true;
timer_.Start(FROM_HERE, base::TimeDelta::FromMilliseconds(500), this,
&VRDeviceManager::PollEvents);
}
void VRDeviceManager::PollEvents() {
for (const auto& provider : providers_)
provider->PollEvents();
}
void VRDeviceManager::StopSchedulingPollEvents() {
if (has_scheduled_poll_)
timer_.Stop();
}
} // namespace device
|
