1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
// Copyright (c) 2011 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 PPAPI_PROXY_PPB_AUDIO_PROXY_H_
#define PPAPI_PROXY_PPB_AUDIO_PROXY_H_
#include <utility>
#include "base/basictypes.h"
#include "base/shared_memory.h"
#include "base/sync_socket.h"
#include "ipc/ipc_platform_file.h"
#include "ppapi/c/pp_instance.h"
#include "ppapi/c/pp_module.h"
#include "ppapi/c/pp_resource.h"
#include "ppapi/c/ppb_audio.h"
#include "ppapi/c/ppb_audio_config.h"
#include "ppapi/cpp/completion_callback.h"
#include "ppapi/proxy/interface_proxy.h"
#include "ppapi/proxy/proxy_non_thread_safe_ref_count.h"
struct PPB_Audio;
namespace ppapi {
class HostResource;
namespace proxy {
class PPB_Audio_Proxy : public InterfaceProxy {
public:
PPB_Audio_Proxy(Dispatcher* dispatcher);
virtual ~PPB_Audio_Proxy();
// Creates an Audio object in the plugin process.
static PP_Resource CreateProxyResource(PP_Instance instance_id,
PP_Resource config_id,
PPB_Audio_Callback audio_callback,
void* user_data);
// InterfaceProxy implementation.
virtual bool OnMessageReceived(const IPC::Message& msg);
static const InterfaceID kInterfaceID = INTERFACE_ID_PPB_AUDIO;
private:
// Plugin->renderer message handlers.
void OnMsgCreate(PP_Instance instance_id,
int32_t sample_rate,
uint32_t sample_frame_count,
ppapi::HostResource* result);
void OnMsgStartOrStop(const ppapi::HostResource& audio_id, bool play);
// Renderer->plugin message handlers.
void OnMsgNotifyAudioStreamCreated(const ppapi::HostResource& audio_id,
int32_t result_code,
IPC::PlatformFileForTransit socket_handle,
base::SharedMemoryHandle handle,
uint32_t length);
void AudioChannelConnected(int32_t result,
const ppapi::HostResource& resource);
// In the renderer, this is called in response to a stream created message.
// It will retrieve the shared memory and socket handles and place them into
// the given out params. The return value is a PPAPI error code.
//
// The input arguments should be initialized to 0 or -1, depending on the
// platform's default invalid handle values. On error, some of these
// arguments may be written to, and others may be untouched, depending on
// where the error occurred.
int32_t GetAudioConnectedHandles(
const ppapi::HostResource& resource,
IPC::PlatformFileForTransit* foreign_socket_handle,
base::SharedMemoryHandle* foreign_shared_memory_handle,
uint32_t* shared_memory_length);
pp::CompletionCallbackFactory<PPB_Audio_Proxy,
ProxyNonThreadSafeRefCount> callback_factory_;
DISALLOW_COPY_AND_ASSIGN(PPB_Audio_Proxy);
};
} // namespace proxy
} // namespace ppapi
#endif // PPAPI_PROXY_PPB_AUDIO_PROXY_H_
|
