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 CHROME_RENDERER_GPU_CHANNEL_HOST_H_
#define CHROME_RENDERER_GPU_CHANNEL_HOST_H_
#pragma once
#include <string>
#include <vector>
#include "base/hash_tables.h"
#include "base/scoped_ptr.h"
#include "chrome/common/gpu_info.h"
#include "chrome/common/message_router.h"
#include "gfx/native_widget_types.h"
#include "gfx/size.h"
#include "ipc/ipc_channel.h"
#include "ipc/ipc_message.h"
#include "ipc/ipc_sync_channel.h"
class CommandBufferProxy;
class GpuVideoServiceHost;
// Encapsulates an IPC channel between the renderer and one plugin process.
// On the plugin side there's a corresponding GpuChannel.
class GpuChannelHost : public IPC::Channel::Listener,
public IPC::Message::Sender,
public base::RefCountedThreadSafe<GpuChannelHost> {
public:
enum State {
// Not yet connected.
kUnconnected,
// Ready to use.
kConnected,
// An error caused the host to become disconnected. Recreate channel to
// reestablish connection.
kLost
};
// Called on the render thread
GpuChannelHost();
~GpuChannelHost();
// Connect to GPU process channel.
void Connect(const std::string& channel_name);
State state() const { return state_; }
// The GPU stats reported by the GPU process.
void set_gpu_info(const GPUInfo& gpu_info);
const GPUInfo& gpu_info() const;
// IPC::Channel::Listener implementation:
virtual void OnMessageReceived(const IPC::Message& msg);
virtual void OnChannelConnected(int32 peer_pid);
virtual void OnChannelError();
// IPC::Message::Sender implementation:
virtual bool Send(IPC::Message* msg);
// Create and connect to a command buffer in the GPU process.
CommandBufferProxy* CreateViewCommandBuffer(
gfx::NativeViewId view,
int render_view_id,
const std::string& allowed_extensions,
const std::vector<int32>& attribs);
// Create and connect to a command buffer in the GPU process.
CommandBufferProxy* CreateOffscreenCommandBuffer(
CommandBufferProxy* parent,
const gfx::Size& size,
const std::string& allowed_extensions,
const std::vector<int32>& attribs,
uint32 parent_texture_id);
// Destroy a command buffer created by this channel.
void DestroyCommandBuffer(CommandBufferProxy* command_buffer);
GpuVideoServiceHost* gpu_video_service_host() {
return gpu_video_service_host_.get();
}
private:
State state_;
GPUInfo gpu_info_;
scoped_ptr<IPC::SyncChannel> channel_;
// Used to implement message routing functionality to CommandBufferProxy
// objects
MessageRouter router_;
// Keep track of all the registered CommandBufferProxies to
// inform about OnChannelError
typedef base::hash_map<int, IPC::Channel::Listener*> ProxyMap;
ProxyMap proxies_;
// This is a MessageFilter to intercept IPC messages and distribute them
// to the corresponding GpuVideoDecoderHost.
scoped_refptr<GpuVideoServiceHost> gpu_video_service_host_;
DISALLOW_COPY_AND_ASSIGN(GpuChannelHost);
};
#endif // CHROME_RENDERER_GPU_CHANNEL_HOST_H_
|
