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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/renderer/media/android/stream_texture_factory_synchronous_impl .h" | 5 #include "content/renderer/media/android/stream_texture_factory_synchronous_impl .h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 | 8 |
9 #include "base/bind.h" | 9 #include "base/bind.h" |
10 #include "base/callback.h" | 10 #include "base/callback.h" |
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33 StreamTextureFactorySynchronousImpl::ContextProvider* provider); | 33 StreamTextureFactorySynchronousImpl::ContextProvider* provider); |
34 virtual ~StreamTextureProxyImpl(); | 34 virtual ~StreamTextureProxyImpl(); |
35 | 35 |
36 // StreamTextureProxy implementation: | 36 // StreamTextureProxy implementation: |
37 virtual void BindToLoop(int32 stream_id, | 37 virtual void BindToLoop(int32 stream_id, |
38 cc::VideoFrameProvider::Client* client, | 38 cc::VideoFrameProvider::Client* client, |
39 scoped_refptr<base::MessageLoopProxy> loop) OVERRIDE; | 39 scoped_refptr<base::MessageLoopProxy> loop) OVERRIDE; |
40 virtual void Release() OVERRIDE; | 40 virtual void Release() OVERRIDE; |
41 | 41 |
42 private: | 42 private: |
43 void SetClient(cc::VideoFrameProvider::Client* client); | 43 void BindOnThread(int32 stream_id); |
44 void BindOnThread(int32 stream_id, | |
45 scoped_refptr<base::MessageLoopProxy> loop); | |
46 void OnFrameAvailable(); | 44 void OnFrameAvailable(); |
47 | 45 |
48 base::Lock client_lock_; | 46 base::Lock lock_; |
49 cc::VideoFrameProvider::Client* client_; | 47 cc::VideoFrameProvider::Client* client_; |
48 scoped_refptr<base::MessageLoopProxy> loop_; | |
50 | 49 |
51 // Accessed on the |loop_| thread only. | 50 // Accessed on the |loop_| thread only. |
52 scoped_refptr<base::MessageLoopProxy> loop_; | |
53 base::Closure callback_; | 51 base::Closure callback_; |
54 scoped_refptr<StreamTextureFactorySynchronousImpl::ContextProvider> | 52 scoped_refptr<StreamTextureFactorySynchronousImpl::ContextProvider> |
55 context_provider_; | 53 context_provider_; |
56 scoped_refptr<gfx::SurfaceTexture> surface_texture_; | 54 scoped_refptr<gfx::SurfaceTexture> surface_texture_; |
57 float current_matrix_[16]; | 55 float current_matrix_[16]; |
58 bool has_updated_; | 56 bool has_updated_; |
59 | 57 |
60 DISALLOW_IMPLICIT_CONSTRUCTORS(StreamTextureProxyImpl); | 58 DISALLOW_IMPLICIT_CONSTRUCTORS(StreamTextureProxyImpl); |
61 }; | 59 }; |
62 | 60 |
63 StreamTextureProxyImpl::StreamTextureProxyImpl( | 61 StreamTextureProxyImpl::StreamTextureProxyImpl( |
64 StreamTextureFactorySynchronousImpl::ContextProvider* provider) | 62 StreamTextureFactorySynchronousImpl::ContextProvider* provider) |
65 : client_(NULL), context_provider_(provider), has_updated_(false) { | 63 : client_(NULL), context_provider_(provider), has_updated_(false) { |
66 std::fill(current_matrix_, current_matrix_ + 16, 0); | 64 std::fill(current_matrix_, current_matrix_ + 16, 0); |
67 } | 65 } |
68 | 66 |
69 StreamTextureProxyImpl::~StreamTextureProxyImpl() {} | 67 StreamTextureProxyImpl::~StreamTextureProxyImpl() {} |
70 | 68 |
71 void StreamTextureProxyImpl::Release() { | 69 void StreamTextureProxyImpl::Release() { |
72 // Assumes this is the last reference to this object. So no need to acquire | 70 scoped_refptr<base::MessageLoopProxy> loop; |
qinmin
2014/09/18 02:01:30
ditto
| |
73 // lock. | 71 { |
74 SetClient(NULL); | 72 base::AutoLock lock(lock_); |
75 if (!loop_.get() || loop_->BelongsToCurrentThread() || | 73 loop = loop_; |
76 !loop_->DeleteSoon(FROM_HERE, this)) { | 74 client_ = NULL; |
75 } | |
76 if (!loop.get() || loop->BelongsToCurrentThread() || | |
77 !loop->DeleteSoon(FROM_HERE, this)) { | |
77 delete this; | 78 delete this; |
78 } | 79 } |
79 } | 80 } |
80 | 81 |
81 void StreamTextureProxyImpl::SetClient(cc::VideoFrameProvider::Client* client) { | |
82 base::AutoLock lock(client_lock_); | |
83 client_ = client; | |
84 } | |
85 | |
86 void StreamTextureProxyImpl::BindToLoop( | 82 void StreamTextureProxyImpl::BindToLoop( |
87 int32 stream_id, | 83 int32 stream_id, |
88 cc::VideoFrameProvider::Client* client, | 84 cc::VideoFrameProvider::Client* client, |
89 scoped_refptr<base::MessageLoopProxy> loop) { | 85 scoped_refptr<base::MessageLoopProxy> loop) { |
90 DCHECK(loop); | 86 DCHECK(loop); |
91 SetClient(client); | 87 |
88 { | |
89 base::AutoLock lock(lock_); | |
90 DCHECK(!loop_ || (loop == loop_)); | |
91 loop_ = loop; | |
92 client_ = client; | |
93 } | |
94 | |
92 if (loop->BelongsToCurrentThread()) { | 95 if (loop->BelongsToCurrentThread()) { |
93 BindOnThread(stream_id, loop); | 96 BindOnThread(stream_id); |
94 return; | 97 return; |
95 } | 98 } |
96 // Unretained is safe here only because the object is deleted on |loop_| | 99 // Unretained is safe here only because the object is deleted on |loop_| |
97 // thread. | 100 // thread. |
98 loop->PostTask(FROM_HERE, | 101 loop->PostTask(FROM_HERE, |
99 base::Bind(&StreamTextureProxyImpl::BindOnThread, | 102 base::Bind(&StreamTextureProxyImpl::BindOnThread, |
100 base::Unretained(this), | 103 base::Unretained(this), |
101 stream_id, | 104 stream_id)); |
102 loop)); | |
103 } | 105 } |
104 | 106 |
105 void StreamTextureProxyImpl::BindOnThread( | 107 void StreamTextureProxyImpl::BindOnThread(int32 stream_id) { |
106 int32 stream_id, | |
107 scoped_refptr<base::MessageLoopProxy> loop) { | |
108 DCHECK(!loop_ || (loop == loop_)); | |
109 loop_ = loop; | |
110 | |
111 surface_texture_ = context_provider_->GetSurfaceTexture(stream_id); | 108 surface_texture_ = context_provider_->GetSurfaceTexture(stream_id); |
112 if (!surface_texture_) { | 109 if (!surface_texture_) { |
113 LOG(ERROR) << "Failed to get SurfaceTexture for stream."; | 110 LOG(ERROR) << "Failed to get SurfaceTexture for stream."; |
114 return; | 111 return; |
115 } | 112 } |
116 | 113 |
117 callback_ = | 114 callback_ = |
118 base::Bind(&StreamTextureProxyImpl::OnFrameAvailable, AsWeakPtr()); | 115 base::Bind(&StreamTextureProxyImpl::OnFrameAvailable, AsWeakPtr()); |
119 surface_texture_->SetFrameAvailableCallback(callback_); | 116 surface_texture_->SetFrameAvailableCallback(callback_); |
120 } | 117 } |
121 | 118 |
122 void StreamTextureProxyImpl::OnFrameAvailable() { | 119 void StreamTextureProxyImpl::OnFrameAvailable() { |
123 // GetTransformMatrix only returns something valid after both is true: | 120 // GetTransformMatrix only returns something valid after both is true: |
124 // - OnFrameAvailable was called | 121 // - OnFrameAvailable was called |
125 // - we called UpdateTexImage | 122 // - we called UpdateTexImage |
126 if (has_updated_) { | 123 if (has_updated_) { |
127 float matrix[16]; | 124 float matrix[16]; |
128 surface_texture_->GetTransformMatrix(matrix); | 125 surface_texture_->GetTransformMatrix(matrix); |
129 | 126 |
130 if (memcmp(current_matrix_, matrix, sizeof(matrix)) != 0) { | 127 if (memcmp(current_matrix_, matrix, sizeof(matrix)) != 0) { |
131 memcpy(current_matrix_, matrix, sizeof(matrix)); | 128 memcpy(current_matrix_, matrix, sizeof(matrix)); |
132 | 129 |
133 base::AutoLock lock(client_lock_); | 130 base::AutoLock lock(lock_); |
134 if (client_) | 131 if (client_) |
135 client_->DidUpdateMatrix(current_matrix_); | 132 client_->DidUpdateMatrix(current_matrix_); |
136 } | 133 } |
137 } | 134 } |
138 // OnFrameAvailable being called a second time implies that we called | 135 // OnFrameAvailable being called a second time implies that we called |
139 // updateTexImage since after we received the first frame. | 136 // updateTexImage since after we received the first frame. |
140 has_updated_ = true; | 137 has_updated_ = true; |
141 | 138 |
142 base::AutoLock lock(client_lock_); | 139 base::AutoLock lock(lock_); |
143 if (client_) | 140 if (client_) |
144 client_->DidReceiveFrame(); | 141 client_->DidReceiveFrame(); |
145 } | 142 } |
146 | 143 |
147 } // namespace | 144 } // namespace |
148 | 145 |
149 // static | 146 // static |
150 scoped_refptr<StreamTextureFactorySynchronousImpl> | 147 scoped_refptr<StreamTextureFactorySynchronousImpl> |
151 StreamTextureFactorySynchronousImpl::Create( | 148 StreamTextureFactorySynchronousImpl::Create( |
152 const CreateContextProviderCallback& try_create_callback, | 149 const CreateContextProviderCallback& try_create_callback, |
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225 | 222 |
226 void StreamTextureFactorySynchronousImpl::RemoveObserver( | 223 void StreamTextureFactorySynchronousImpl::RemoveObserver( |
227 StreamTextureFactoryContextObserver* obs) { | 224 StreamTextureFactoryContextObserver* obs) { |
228 DCHECK_EQ(observer_, obs); | 225 DCHECK_EQ(observer_, obs); |
229 observer_ = NULL; | 226 observer_ = NULL; |
230 if (context_provider_) | 227 if (context_provider_) |
231 context_provider_->RemoveObserver(obs); | 228 context_provider_->RemoveObserver(obs); |
232 } | 229 } |
233 | 230 |
234 } // namespace content | 231 } // namespace content |
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