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
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
// Copyright (c) 2012 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 CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_H_
#define CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_H_
#include <deque>
#include <string>
#include <vector>
#include "base/containers/hash_tables.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/message_loop/message_loop_proxy.h"
#include "build/build_config.h"
#include "content/common/gpu/gpu_memory_manager.h"
#include "ipc/ipc_listener.h"
#include "ipc/ipc_sender.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/gl/gl_surface.h"
namespace base {
class WaitableEvent;
}
namespace gfx {
class GLShareGroup;
}
namespace gpu {
namespace gles2 {
class MailboxManager;
class ProgramCache;
}
}
namespace IPC {
struct ChannelHandle;
}
struct GPUCreateCommandBufferConfig;
namespace content {
class ChildThread;
class GpuChannel;
class GpuWatchdog;
class SyncPointManager;
// A GpuChannelManager is a thread responsible for issuing rendering commands
// managing the lifetimes of GPU channels and forwarding IPC requests from the
// browser process to them based on the corresponding renderer ID.
//
// A GpuChannelManager can also be hosted in the browser process in single
// process or in-process GPU modes. In this case there is no corresponding
// GpuChildThread and this is the reason the GpuChildThread is referenced via
// a pointer to IPC::Sender, which can be implemented by other hosts to send
// IPC messages to the browser process IO thread on the GpuChannelManager's
// behalf.
class GpuChannelManager : public IPC::Listener,
public IPC::Sender {
public:
GpuChannelManager(ChildThread* gpu_child_thread,
GpuWatchdog* watchdog,
base::MessageLoopProxy* io_message_loop,
base::WaitableEvent* shutdown_event);
virtual ~GpuChannelManager();
// Remove the channel for a particular renderer.
void RemoveChannel(int client_id);
// Listener overrides.
virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
// Sender overrides.
virtual bool Send(IPC::Message* msg) OVERRIDE;
bool HandleMessagesScheduled();
uint64 MessagesProcessed();
void LoseAllContexts();
base::WeakPtrFactory<GpuChannelManager> weak_factory_;
int GenerateRouteID();
void AddRoute(int32 routing_id, IPC::Listener* listener);
void RemoveRoute(int32 routing_id);
gpu::gles2::ProgramCache* program_cache();
gpu::gles2::MailboxManager* mailbox_manager() { return mailbox_manager_.get(); }
GpuMemoryManager* gpu_memory_manager() { return &gpu_memory_manager_; }
GpuChannel* LookupChannel(int32 client_id);
SyncPointManager* sync_point_manager() { return sync_point_manager_.get(); }
gfx::GLSurface* GetDefaultOffscreenSurface();
private:
struct ImageOperation {
ImageOperation(int32 sync_point, base::Closure callback);
~ImageOperation();
int32 sync_point;
base::Closure callback;
};
typedef base::hash_map<int, scoped_refptr<GpuChannel> > GpuChannelMap;
typedef std::deque<ImageOperation*> ImageOperationQueue;
// Message handlers.
void OnEstablishChannel(int client_id, bool share_context);
void OnCloseChannel(const IPC::ChannelHandle& channel_handle);
void OnVisibilityChanged(
int32 render_view_id, int32 client_id, bool visible);
void OnCreateViewCommandBuffer(
const gfx::GLSurfaceHandle& window,
int32 render_view_id,
int32 client_id,
const GPUCreateCommandBufferConfig& init_params);
void CreateImage(
gfx::PluginWindowHandle window, int32 client_id, int32 image_id);
void OnCreateImage(
gfx::PluginWindowHandle window, int32 client_id, int32 image_id);
void DeleteImage(int32 client_id, int32 image_id);
void OnDeleteImage(int32 client_id, int32 image_id, int32 sync_point);
void OnDeleteImageSyncPointRetired(ImageOperation*);
void OnLoadedShader(std::string shader);
void OnLoseAllContexts();
scoped_refptr<base::MessageLoopProxy> io_message_loop_;
base::WaitableEvent* shutdown_event_;
// Used to send and receive IPC messages from the browser process.
ChildThread* gpu_child_thread_;
// These objects manage channels to individual renderer processes there is
// one channel for each renderer process that has connected to this GPU
// process.
GpuChannelMap gpu_channels_;
scoped_refptr<gfx::GLShareGroup> share_group_;
scoped_refptr<gpu::gles2::MailboxManager> mailbox_manager_;
GpuMemoryManager gpu_memory_manager_;
GpuWatchdog* watchdog_;
scoped_refptr<SyncPointManager> sync_point_manager_;
scoped_ptr<gpu::gles2::ProgramCache> program_cache_;
scoped_refptr<gfx::GLSurface> default_offscreen_surface_;
ImageOperationQueue image_operations_;
DISALLOW_COPY_AND_ASSIGN(GpuChannelManager);
};
} // namespace content
#endif // CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_H_
|
