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
content / browser / android / scoped_surface_request_manager.cc [blame]
// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/android/scoped_surface_request_manager.h"
#include "base/functional/bind.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "gpu/command_buffer/service/texture_owner.h"
namespace content {
// static
ScopedSurfaceRequestManager* ScopedSurfaceRequestManager::GetInstance() {
return base::Singleton<
ScopedSurfaceRequestManager,
base::LeakySingletonTraits<ScopedSurfaceRequestManager>>::get();
}
base::UnguessableToken
ScopedSurfaceRequestManager::RegisterScopedSurfaceRequest(
ScopedSurfaceRequestCB request_cb) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
DCHECK(!request_cb.is_null());
base::UnguessableToken request_token = base::UnguessableToken::Create();
DCHECK(!request_callbacks_.count(request_token));
request_callbacks_.insert(
std::make_pair(request_token, std::move(request_cb)));
return request_token;
}
void ScopedSurfaceRequestManager::UnregisterScopedSurfaceRequest(
const base::UnguessableToken& request_token) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
GetAndUnregisterInternal(request_token);
}
ScopedSurfaceRequestManager::ScopedSurfaceRequestCB
ScopedSurfaceRequestManager::GetAndUnregisterInternal(
const base::UnguessableToken& request_token) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
DCHECK(!request_token.is_empty());
ScopedSurfaceRequestManager::ScopedSurfaceRequestCB request;
auto it = request_callbacks_.find(request_token);
if (it != request_callbacks_.end()) {
request = std::move(it->second);
request_callbacks_.erase(it);
}
return request;
}
void ScopedSurfaceRequestManager::ForwardSurfaceOwnerForSurfaceRequest(
const base::UnguessableToken& request_token,
const gpu::TextureOwner* texture_owner) {
FulfillScopedSurfaceRequest(request_token,
texture_owner->CreateJavaSurface());
}
void ScopedSurfaceRequestManager::FulfillScopedSurfaceRequest(
const base::UnguessableToken& request_token,
gl::ScopedJavaSurface surface) {
// base::Unretained is safe because the lifetime of this object is tied to
// the lifetime of the browser process.
GetUIThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&ScopedSurfaceRequestManager::CompleteRequestOnUiThread,
base::Unretained(this), request_token,
std::move(surface)));
}
void ScopedSurfaceRequestManager::CompleteRequestOnUiThread(
const base::UnguessableToken& request_token,
gl::ScopedJavaSurface surface) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
ScopedSurfaceRequestManager::ScopedSurfaceRequestCB request =
GetAndUnregisterInternal(request_token);
if (!request.is_null())
std::move(request).Run(std::move(surface));
}
ScopedSurfaceRequestManager::ScopedSurfaceRequestManager() {}
ScopedSurfaceRequestManager::~ScopedSurfaceRequestManager() {}
} // namespace content