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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
// 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 CHROME_RENDERER_PEPPER_DEVICES_H_
#define CHROME_RENDERER_PEPPER_DEVICES_H_
#pragma once
#include "app/surface/transport_dib.h"
#include "base/basictypes.h"
#include "base/scoped_ptr.h"
#include "base/shared_memory.h"
#include "base/simple_thread.h"
#include "chrome/common/render_messages.h"
#include "chrome/renderer/audio_message_filter.h"
#include "gfx/rect.h"
#include "third_party/npapi/bindings/npapi.h"
#include "third_party/npapi/bindings/npapi_extensions.h"
class WebPluginDelegatePepper;
class SkBitmap;
// Lists all contexts currently open for painting. These are ones requested by
// the plugin but not destroyed by it yet. The source pointer is the raw
// pixels. We use this to look up the corresponding transport DIB when the
// plugin tells us to flush or destroy it.
class Graphics2DDeviceContext {
public:
explicit Graphics2DDeviceContext(WebPluginDelegatePepper* plugin_delegate);
~Graphics2DDeviceContext();
NPError Initialize(gfx::Rect window_rect,
const NPDeviceContext2DConfig* config,
NPDeviceContext2D* context);
NPError Flush(SkBitmap* commited_bitmap, NPDeviceContext2D* context,
NPDeviceFlushContextCallbackPtr callback, NPP id,
void* user_data);
// Notifications that the render view has rendered the page and that it has
// been flushed to the screen.
void RenderViewInitiatedPaint();
void RenderViewFlushedPaint();
TransportDIB* transport_dib() { return transport_dib_.get(); }
skia::PlatformCanvas* canvas() { return canvas_.get(); }
private:
struct FlushCallbackData;
typedef std::vector<FlushCallbackData> FlushCallbackVector;
WebPluginDelegatePepper* plugin_delegate_;
static int32 next_buffer_id_;
scoped_ptr<TransportDIB> transport_dib_;
// The canvas associated with the transport DIB, containing the mapped
// memory of the image.
scoped_ptr<skia::PlatformCanvas> canvas_;
// The plugin may be constantly giving us paint messages. "Unpainted" ones
// are paint requests which have never been painted. These could have been
// done while the RenderView was already waiting for an ACK from a previous
// paint, so won't generate a new one yet.
//
// "Painted" ones are those paints that have been painted by RenderView, but
// for which the ACK from the browser has not yet been received.
//
// When we get updates from a plugin with a callback, it is first added to
// the unpainted callbacks. When the renderer has initiated a paint, we'll
// move it to the painted callbacks list. When the renderer receives a flush,
// we'll execute the callback and remove it from the list.
FlushCallbackVector unpainted_flush_callbacks_;
FlushCallbackVector painted_flush_callbacks_;
DISALLOW_COPY_AND_ASSIGN(Graphics2DDeviceContext);
};
// Each instance of AudioDeviceContext corresponds to one host stream (and one
// audio context). NPDeviceContextAudio contains the id of the context's
// stream in the privatePtr member.
class AudioDeviceContext : public AudioMessageFilter::Delegate,
public base::DelegateSimpleThread::Delegate {
public:
explicit AudioDeviceContext();
virtual ~AudioDeviceContext();
NPError Initialize(AudioMessageFilter* filter,
const NPDeviceContextAudioConfig* config,
NPDeviceContextAudio* context);
base::SharedMemory* shared_memory() { return shared_memory_.get(); }
uint32 shared_memory_size() { return shared_memory_size_; }
base::SyncSocket* socket() { return socket_.get(); }
private:
// AudioMessageFilter::Delegate implementation
virtual void OnRequestPacket(AudioBuffersState buffers_state);
virtual void OnStateChanged(const ViewMsg_AudioStreamState_Params& state);
virtual void OnCreated(base::SharedMemoryHandle handle, uint32 length);
virtual void OnLowLatencyCreated(base::SharedMemoryHandle handle,
base::SyncSocket::Handle socket_handle,
uint32 length);
virtual void OnVolume(double volume);
virtual void OnDestroy();
// End of AudioMessageFilter::Delegate implementation
// DelegateSimpleThread::Delegate implementation
virtual void Run();
// End of DelegateSimpleThread::Delegate implementation
void FireAudioCallback() {
if (context_ && context_->config.callback) {
context_->config.callback(context_);
}
}
NPDeviceContextAudio* context_;
scoped_refptr<AudioMessageFilter> filter_;
int32 stream_id_;
scoped_ptr<base::SharedMemory> shared_memory_;
uint32 shared_memory_size_;
scoped_ptr<base::SyncSocket> socket_;
scoped_ptr<base::DelegateSimpleThread> audio_thread_;
};
#endif // CHROME_RENDERER_PEPPER_DEVICES_H_
|
