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 CONTENT_RENDERER_PEPPER_PPB_AUDIO_IMPL_H_ 6 #define CONTENT_RENDERER_PEPPER_PPB_AUDIO_IMPL_H_ 7 8 #include "base/basictypes.h" 9 #include "base/memory/ref_counted.h" 10 #include "base/memory/shared_memory.h" 11 #include "base/sync_socket.h" 12 #include "content/renderer/pepper/audio_helper.h" 13 #include "ppapi/c/pp_completion_callback.h" 14 #include "ppapi/c/ppb_audio.h" 15 #include "ppapi/c/ppb_audio_config.h" 16 #include "ppapi/shared_impl/ppb_audio_config_shared.h" 17 #include "ppapi/shared_impl/ppb_audio_shared.h" 18 #include "ppapi/shared_impl/resource.h" 19 #include "ppapi/shared_impl/scoped_pp_resource.h" 20 21 namespace content { 22 class PepperPlatformAudioOutput; 23 24 // Some of the backend functionality of this class is implemented by the 25 // PPB_Audio_Shared so it can be shared with the proxy. 26 // 27 // TODO(teravest): PPB_Audio is no longer supported in-process. Clean this up 28 // to look more like typical HostResource implementations. 29 class PPB_Audio_Impl : public ppapi::Resource, 30 public ppapi::PPB_Audio_Shared, 31 public AudioHelper { 32 public: 33 explicit PPB_Audio_Impl(PP_Instance instance); 34 35 // Resource overrides. 36 virtual ppapi::thunk::PPB_Audio_API* AsPPB_Audio_API() OVERRIDE; 37 38 // PPB_Audio_API implementation. 39 virtual PP_Resource GetCurrentConfig() OVERRIDE; 40 virtual PP_Bool StartPlayback() OVERRIDE; 41 virtual PP_Bool StopPlayback() OVERRIDE; 42 virtual int32_t Open(PP_Resource config_id, 43 scoped_refptr<ppapi::TrackedCallback> create_callback) 44 OVERRIDE; 45 virtual int32_t GetSyncSocket(int* sync_socket) OVERRIDE; 46 virtual int32_t GetSharedMemory(int* shm_handle, uint32_t* shm_size) OVERRIDE; 47 48 private: 49 virtual ~PPB_Audio_Impl(); 50 51 // AudioHelper implementation. 52 virtual void OnSetStreamInfo(base::SharedMemoryHandle shared_memory_handle, 53 size_t shared_memory_size_, 54 base::SyncSocket::Handle socket) OVERRIDE; 55 56 // AudioConfig used for creating this Audio object. We own a ref. 57 ppapi::ScopedPPResource config_; 58 59 // PluginDelegate audio object that we delegate audio IPC through. We don't 60 // own this pointer but are responsible for calling Shutdown on it. 61 PepperPlatformAudioOutput* audio_; 62 63 DISALLOW_COPY_AND_ASSIGN(PPB_Audio_Impl); 64 }; 65 66 } // namespace content 67 68 #endif // CONTENT_RENDERER_PEPPER_PPB_AUDIO_IMPL_H_ 69