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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 PPAPI_PROXY_PPB_AUDIO_INPUT_PROXY_H_ | |
6 #define PPAPI_PROXY_PPB_AUDIO_INPUT_PROXY_H_ | |
7 | |
8 #include <string> | |
9 #include <utility> | |
10 #include <vector> | |
11 | |
12 #include "base/basictypes.h" | |
13 #include "base/shared_memory.h" | |
14 #include "base/sync_socket.h" | |
15 #include "ipc/ipc_platform_file.h" | |
16 #include "ppapi/c/dev/ppb_audio_input_dev.h" | |
17 #include "ppapi/c/ppb_audio_config.h" | |
18 #include "ppapi/proxy/interface_proxy.h" | |
19 #include "ppapi/proxy/proxy_completion_callback_factory.h" | |
20 #include "ppapi/proxy/serialized_structs.h" | |
21 #include "ppapi/utility/completion_callback_factory.h" | |
22 | |
23 namespace ppapi { | |
24 | |
25 class HostResource; | |
26 struct DeviceRefData; | |
27 | |
28 namespace proxy { | |
29 | |
30 class PPB_AudioInput_Proxy : public InterfaceProxy { | |
31 public: | |
32 explicit PPB_AudioInput_Proxy(Dispatcher* dispatcher); | |
33 virtual ~PPB_AudioInput_Proxy(); | |
34 | |
35 static PP_Resource CreateProxyResource0_1( | |
36 PP_Instance instance, | |
37 PP_Resource config, | |
38 PPB_AudioInput_Callback audio_input_callback, | |
39 void* user_data); | |
40 | |
41 static PP_Resource CreateProxyResource(PP_Instance instance); | |
42 | |
43 // InterfaceProxy implementation. | |
44 virtual bool OnMessageReceived(const IPC::Message& msg); | |
45 | |
46 static const ApiID kApiID = API_ID_PPB_AUDIO_INPUT_DEV; | |
47 | |
48 private: | |
49 // Message handlers. | |
50 // Plugin->renderer message handlers. | |
51 void OnMsgCreate(PP_Instance instance, ppapi::HostResource* result); | |
52 void OnMsgEnumerateDevices(const ppapi::HostResource& audio_input); | |
53 void OnMsgOpen(const ppapi::HostResource& audio_input, | |
54 const std::string& device_id, | |
55 int32_t sample_rate, | |
56 uint32_t sample_frame_count); | |
57 void OnMsgStartOrStop(const ppapi::HostResource& audio_input, bool capture); | |
58 void OnMsgClose(const ppapi::HostResource& audio_input); | |
59 | |
60 // Renderer->plugin message handlers. | |
61 void OnMsgEnumerateDevicesACK( | |
62 const ppapi::HostResource& audio_input, | |
63 int32_t result, | |
64 const std::vector<ppapi::DeviceRefData>& devices); | |
65 void OnMsgOpenACK(const ppapi::HostResource& audio_input, | |
66 int32_t result, | |
67 const ppapi::proxy::SerializedHandle& socket_handle, | |
68 const ppapi::proxy::SerializedHandle& handle); | |
69 | |
70 void EnumerateDevicesACKInHost(int32_t result, | |
71 const ppapi::HostResource& audio_input); | |
72 void OpenACKInHost(int32_t result, const ppapi::HostResource& audio_input); | |
73 | |
74 // In the renderer, this is called in response to an OpenACK message. | |
75 // It will retrieve the shared memory and socket handles and place them into | |
76 // the given out params. The return value is a PPAPI error code. | |
77 // | |
78 // The input arguments should be initialized to 0 or -1, depending on the | |
79 // platform's default invalid handle values. On error, some of these | |
80 // arguments may be written to, and others may be untouched, depending on | |
81 // where the error occurred. | |
82 int32_t GetAudioInputConnectedHandles( | |
83 const ppapi::HostResource& resource, | |
84 IPC::PlatformFileForTransit* foreign_socket_handle, | |
85 base::SharedMemoryHandle* foreign_shared_memory_handle, | |
86 uint32_t* shared_memory_length); | |
87 | |
88 ProxyCompletionCallbackFactory<PPB_AudioInput_Proxy> callback_factory_; | |
89 | |
90 DISALLOW_COPY_AND_ASSIGN(PPB_AudioInput_Proxy); | |
91 }; | |
92 | |
93 } // namespace proxy | |
94 } // namespace ppapi | |
95 | |
96 #endif // PPAPI_PROXY_PPB_AUDIO_INPUT_PROXY_H_ | |
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