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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef WEBKIT_PLUGINS_PPAPI_AUDIO_HELPER_H_ | |
6 #define WEBKIT_PLUGINS_PPAPI_AUDIO_HELPER_H_ | |
7 | |
8 #include "base/basictypes.h" | |
9 #include "base/memory/scoped_ptr.h" | |
10 #include "base/memory/shared_memory.h" | |
11 #include "base/sync_socket.h" | |
12 #include "ppapi/c/pp_completion_callback.h" | |
13 #include "ppapi/shared_impl/resource.h" | |
14 #include "ppapi/shared_impl/scoped_pp_resource.h" | |
15 #include "ppapi/shared_impl/tracked_callback.h" | |
16 #include "webkit/plugins/ppapi/plugin_delegate.h" | |
17 | |
18 namespace webkit { | |
19 namespace ppapi { | |
20 | |
21 class AudioHelper : public PluginDelegate::PlatformAudioOutputClient { | |
22 public: | |
23 AudioHelper(); | |
24 virtual ~AudioHelper(); | |
25 | |
26 // |PluginDelegate::PlatformAudioOutputClient| implementation. | |
27 virtual void StreamCreated(base::SharedMemoryHandle shared_memory_handle, | |
28 size_t shared_memory_size_, | |
29 base::SyncSocket::Handle socket) OVERRIDE; | |
30 | |
31 void SetCreateCallback( | |
32 scoped_refptr< ::ppapi::TrackedCallback> create_callback); | |
33 | |
34 protected: | |
35 // TODO(viettrungluu): This is all very poorly thought out. Refactor. | |
36 | |
37 // To be called by implementations of |PPB_Audio_API|/|PPB_AudioInput_API|. | |
38 int32_t GetSyncSocketImpl(int* sync_socket); | |
39 int32_t GetSharedMemoryImpl(int* shm_handle, uint32_t* shm_size); | |
40 | |
41 // To be implemented by subclasses to call their |SetStreamInfo()|. | |
42 virtual void OnSetStreamInfo(base::SharedMemoryHandle shared_memory_handle, | |
43 size_t shared_memory_size, | |
44 base::SyncSocket::Handle socket_handle) = 0; | |
45 | |
46 private: | |
47 scoped_refptr< ::ppapi::TrackedCallback> create_callback_; | |
48 | |
49 // When a create callback is being issued, these will save the info for | |
50 // querying from the callback. The proxy uses this to get the handles to the | |
51 // other process instead of mapping them in the renderer. These will be | |
52 // invalid all other times. | |
53 scoped_ptr<base::SharedMemory> shared_memory_for_create_callback_; | |
54 size_t shared_memory_size_for_create_callback_; | |
55 scoped_ptr<base::SyncSocket> socket_for_create_callback_; | |
56 | |
57 DISALLOW_COPY_AND_ASSIGN(AudioHelper); | |
58 }; | |
59 | |
60 } // namespace ppapi | |
61 } // namespace webkit | |
62 | |
63 #endif // WEBKIT_PLUGINS_PPAPI_AUDIO_HELPER_H_ | |
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