| // 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. |
| |
| #ifndef CONTENT_RENDERER_PEPPER_AUDIO_HELPER_H_ |
| #define CONTENT_RENDERER_PEPPER_AUDIO_HELPER_H_ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include "base/macros.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/memory/shared_memory.h" |
| #include "base/sync_socket.h" |
| #include "ppapi/c/pp_completion_callback.h" |
| #include "ppapi/shared_impl/resource.h" |
| #include "ppapi/shared_impl/scoped_pp_resource.h" |
| #include "ppapi/shared_impl/tracked_callback.h" |
| |
| namespace content { |
| |
| class AudioHelper { |
| public: |
| AudioHelper(); |
| virtual ~AudioHelper(); |
| |
| // Called when the stream is created. |
| void StreamCreated(base::SharedMemoryHandle shared_memory_handle, |
| size_t shared_memory_size_, |
| base::SyncSocket::Handle socket); |
| |
| void SetCreateCallback(scoped_refptr<ppapi::TrackedCallback> create_callback); |
| |
| protected: |
| // TODO(viettrungluu): This is all very poorly thought out. Refactor. |
| |
| // To be called by implementations of |PPB_Audio_API|/|PPB_AudioInput_API|. |
| int32_t GetSyncSocketImpl(int* sync_socket); |
| int32_t GetSharedMemoryImpl(base::SharedMemory** shm, uint32_t* shm_size); |
| |
| // To be implemented by subclasses to call their |SetStreamInfo()|. |
| virtual void OnSetStreamInfo(base::SharedMemoryHandle shared_memory_handle, |
| size_t shared_memory_size, |
| base::SyncSocket::Handle socket_handle) = 0; |
| |
| private: |
| scoped_refptr<ppapi::TrackedCallback> create_callback_; |
| |
| // When a create callback is being issued, these will save the info for |
| // querying from the callback. The proxy uses this to get the handles to the |
| // other process instead of mapping them in the renderer. These will be |
| // invalid all other times. |
| scoped_ptr<base::SharedMemory> shared_memory_for_create_callback_; |
| size_t shared_memory_size_for_create_callback_; |
| scoped_ptr<base::SyncSocket> socket_for_create_callback_; |
| |
| DISALLOW_COPY_AND_ASSIGN(AudioHelper); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_PEPPER_AUDIO_HELPER_H_ |