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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
// Copyright (c) 2010 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 WEBKIT_PLUGINS_PPAPI_DEVICE_CONTEXT_AUDIO_H_
#define WEBKIT_PLUGINS_PPAPI_DEVICE_CONTEXT_AUDIO_H_
#include "base/basictypes.h"
#include "base/ref_counted.h"
#include "base/shared_memory.h"
#include "base/sync_socket.h"
#include "ppapi/c/pp_completion_callback.h"
#include "ppapi/c/ppb_audio.h"
#include "ppapi/c/ppb_audio_config.h"
#include "ppapi/c/trusted/ppb_audio_trusted.h"
#include "ppapi/shared_impl/audio_impl.h"
#include "webkit/plugins/ppapi/plugin_delegate.h"
#include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
#include "webkit/plugins/ppapi/resource.h"
namespace webkit {
namespace ppapi {
class PluginInstance;
class PPB_AudioConfig_Impl : public Resource {
public:
PPB_AudioConfig_Impl(PluginInstance* instance,
PP_AudioSampleRate sample_rate,
uint32_t sample_frame_count);
size_t BufferSize();
static const PPB_AudioConfig* GetInterface();
PP_AudioSampleRate sample_rate() { return sample_rate_; }
uint32_t sample_frame_count() { return sample_frame_count_; }
private:
// Resource override.
virtual PPB_AudioConfig_Impl* AsPPB_AudioConfig_Impl();
PP_AudioSampleRate sample_rate_;
uint32_t sample_frame_count_;
};
// Some of the backend functionality of this class is implemented by the
// AudioImpl so it can be shared with the proxy.
class PPB_Audio_Impl : public Resource,
public pp::shared_impl::AudioImpl,
public PluginDelegate::PlatformAudio::Client {
public:
explicit PPB_Audio_Impl(PluginInstance* instance);
virtual ~PPB_Audio_Impl();
static const PPB_Audio* GetInterface();
static const PPB_AudioTrusted* GetTrustedInterface();
// PPB_Audio implementation.
bool Init(PluginDelegate* plugin_delegate,
PP_Resource config_id,
PPB_Audio_Callback user_callback, void* user_data);
PP_Resource GetCurrentConfig();
bool StartPlayback();
bool StopPlayback();
// PPB_Audio_Trusted implementation.
int32_t Open(PluginDelegate* plugin_delegate,
PP_Resource config_id,
PP_CompletionCallback create_callback);
int32_t GetSyncSocket(int* sync_socket);
int32_t GetSharedMemory(int* shm_handle, uint32_t* shm_size);
// Resource override.
virtual PPB_Audio_Impl* AsPPB_Audio_Impl();
private:
// PluginDelegate::PlatformAudio::Client implementation.
virtual void StreamCreated(base::SharedMemoryHandle shared_memory_handle,
size_t shared_memory_size_,
base::SyncSocket::Handle socket);
// AudioConfig used for creating this Audio object.
scoped_refptr<PPB_AudioConfig_Impl> config_;
// PluginDelegate audio object that we delegate audio IPC through.
PluginDelegate::PlatformAudio* audio_;
// Is a create callback pending to fire?
bool create_callback_pending_;
// Trusted callback invoked from StreamCreated.
PP_CompletionCallback 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(PPB_Audio_Impl);
};
} // namespace ppapi
} // namespace webkit
#endif // WEBKIT_PLUGINS_PPAPI_DEVICE_CONTEXT_AUDIO_H_
|
