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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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