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
|
// Copyright (c) 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 "content/renderer/media/stream_texture_factory_impl_android.h"
#include "base/bind.h"
#include "base/compiler_specific.h"
#include "base/message_loop/message_loop_proxy.h"
#include "base/synchronization/lock.h"
#include "content/common/android/surface_texture_peer.h"
#include "content/common/gpu/client/gpu_channel_host.h"
#include "content/common/gpu/gpu_messages.h"
#include "content/renderer/render_thread_impl.h"
#include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
#include "ui/gfx/size.h"
namespace {
// Implementation of the StreamTextureProxy class. This class listens to all
// the stream texture updates and forward them to the
// cc::VideoFrameProvider::Client.
class StreamTextureProxyImpl : public webkit_media::StreamTextureProxy,
public content::StreamTextureHost::Listener {
public:
explicit StreamTextureProxyImpl(content::StreamTextureHost* host);
virtual ~StreamTextureProxyImpl() {}
// webkit_media::StreamTextureProxy implementation:
virtual void BindToCurrentThread(
int stream_id, int width, int height) OVERRIDE;
virtual bool IsBoundToThread() OVERRIDE { return !!loop_.get(); }
virtual void SetClient(cc::VideoFrameProvider::Client* client) OVERRIDE;
virtual void Release() OVERRIDE;
// StreamTextureHost::Listener implementation:
virtual void OnFrameAvailable() OVERRIDE;
virtual void OnMatrixChanged(const float matrix[16]) OVERRIDE;
private:
scoped_ptr<content::StreamTextureHost> host_;
scoped_refptr<base::MessageLoopProxy> loop_;
base::Lock client_lock_;
cc::VideoFrameProvider::Client* client_;
DISALLOW_COPY_AND_ASSIGN(StreamTextureProxyImpl);
};
StreamTextureProxyImpl::StreamTextureProxyImpl(
content::StreamTextureHost* host)
: host_(host),
client_(NULL) {
DCHECK(host);
host->SetListener(this);
}
void StreamTextureProxyImpl::Release() {
SetClient(NULL);
if (loop_ && loop_ != base::MessageLoopProxy::current())
loop_->DeleteSoon(FROM_HERE, this);
else
delete this;
}
void StreamTextureProxyImpl::SetClient(cc::VideoFrameProvider::Client* client) {
base::AutoLock lock(client_lock_);
client_ = client;
}
void StreamTextureProxyImpl::BindToCurrentThread(
int stream_id, int width, int height) {
loop_ = base::MessageLoopProxy::current();
host_->Initialize(stream_id, gfx::Size(width, height));
}
void StreamTextureProxyImpl::OnFrameAvailable() {
base::AutoLock lock(client_lock_);
if (client_)
client_->DidReceiveFrame();
}
void StreamTextureProxyImpl::OnMatrixChanged(const float matrix[16]) {
base::AutoLock lock(client_lock_);
if (client_)
client_->DidUpdateMatrix(matrix);
}
} // anonymous namespace
namespace content {
StreamTextureFactoryImpl::StreamTextureFactoryImpl(
WebKit::WebGraphicsContext3D* context,
GpuChannelHost* channel,
int view_id)
: context_(context),
channel_(channel),
view_id_(view_id) {
DCHECK(context_);
DCHECK(channel);
}
StreamTextureFactoryImpl::~StreamTextureFactoryImpl() {
}
webkit_media::StreamTextureProxy* StreamTextureFactoryImpl::CreateProxy() {
DCHECK(channel_.get());
StreamTextureHost* host = new StreamTextureHost(channel_.get());
return new StreamTextureProxyImpl(host);
}
void StreamTextureFactoryImpl::EstablishPeer(int stream_id, int player_id) {
DCHECK(channel_.get());
channel_->Send(new GpuChannelMsg_EstablishStreamTexture(
stream_id, view_id_, player_id));
}
unsigned StreamTextureFactoryImpl::CreateStreamTexture(unsigned* texture_id) {
unsigned stream_id = 0;
if (context_->makeContextCurrent()) {
*texture_id = context_->createTexture();
stream_id = context_->createStreamTextureCHROMIUM(*texture_id);
context_->flush();
}
return stream_id;
}
void StreamTextureFactoryImpl::DestroyStreamTexture(unsigned texture_id) {
if (context_->makeContextCurrent()) {
context_->destroyStreamTextureCHROMIUM(texture_id);
context_->deleteTexture(texture_id);
context_->flush();
}
}
} // namespace content
|
