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
|
// Copyright (c) 2009 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.
#include "base/process_util.h"
#include "base/shared_memory.h"
#include "chrome/common/command_buffer_messages.h"
#include "chrome/plugin/command_buffer_stub.h"
#include "chrome/plugin/plugin_channel.h"
using gpu::Buffer;
CommandBufferStub::CommandBufferStub(PluginChannel* channel,
gfx::PluginWindowHandle window)
: channel_(channel),
window_(window) {
route_id_ = channel->GenerateRouteID();
channel->AddRoute(route_id_, this, false);
}
CommandBufferStub::~CommandBufferStub() {
channel_->RemoveRoute(route_id_);
}
void CommandBufferStub::OnChannelError() {
NOTREACHED() << "CommandBufferService::OnChannelError called";
}
bool CommandBufferStub::Send(IPC::Message* message) {
if (!channel_) {
delete message;
return false;
}
return channel_->Send(message);
}
void CommandBufferStub::OnInitialize(int32 size,
base::SharedMemoryHandle* ring_buffer) {
DCHECK(!command_buffer_.get());
*ring_buffer = base::SharedMemory::NULLHandle();
// Assume service is responsible for duplicating the handle from the calling
// process.
base::ProcessHandle peer_handle;
if (!base::OpenProcessHandle(channel_->peer_pid(), &peer_handle))
return;
command_buffer_.reset(new gpu::CommandBufferService);
// Initialize the CommandBufferService and GPUProcessor.
if (command_buffer_->Initialize(size)) {
Buffer buffer = command_buffer_->GetRingBuffer();
if (buffer.shared_memory) {
processor_ = new gpu::GPUProcessor(command_buffer_.get());
if (processor_->Initialize(window_)) {
command_buffer_->SetPutOffsetChangeCallback(
NewCallback(processor_.get(),
&gpu::GPUProcessor::ProcessCommands));
buffer.shared_memory->ShareToProcess(peer_handle, ring_buffer);
} else {
processor_ = NULL;
command_buffer_.reset();
}
}
}
base::CloseProcessHandle(peer_handle);
}
void CommandBufferStub::OnSyncOffsets(int32 put_offset, int32* get_offset) {
*get_offset = command_buffer_->SyncOffsets(put_offset);
}
void CommandBufferStub::OnGetGetOffset(int32* get_offset) {
*get_offset = command_buffer_->GetGetOffset();
}
void CommandBufferStub::OnGetPutOffset(int32* put_offset) {
*put_offset = command_buffer_->GetPutOffset();
}
void CommandBufferStub::OnCreateTransferBuffer(int32 size, int32* id) {
*id = command_buffer_->CreateTransferBuffer(size);
}
void CommandBufferStub::OnDestroyTransferBuffer(int32 id) {
command_buffer_->DestroyTransferBuffer(id);
}
void CommandBufferStub::OnGetTransferBuffer(
int32 id,
base::SharedMemoryHandle* transfer_buffer,
size_t* size) {
*transfer_buffer = base::SharedMemoryHandle();
*size = 0;
// Assume service is responsible for duplicating the handle to the calling
// process.
base::ProcessHandle peer_handle;
if (!base::OpenProcessHandle(channel_->peer_pid(), &peer_handle))
return;
Buffer buffer = command_buffer_->GetTransferBuffer(id);
if (buffer.shared_memory) {
buffer.shared_memory->ShareToProcess(peer_handle, transfer_buffer);
*size = buffer.shared_memory->max_size();
}
base::CloseProcessHandle(peer_handle);
}
void CommandBufferStub::OnGetToken(int32* token) {
*token = command_buffer_->GetToken();
}
void CommandBufferStub::OnResetParseError(int32* parse_error) {
*parse_error = command_buffer_->ResetParseError();
}
void CommandBufferStub::OnGetErrorStatus(bool* error_status) {
*error_status = command_buffer_->GetErrorStatus();
}
void CommandBufferStub::OnMessageReceived(const IPC::Message& msg) {
IPC_BEGIN_MESSAGE_MAP(CommandBufferStub, msg)
IPC_MESSAGE_HANDLER(CommandBufferMsg_Initialize, OnInitialize);
IPC_MESSAGE_HANDLER(CommandBufferMsg_SyncOffsets, OnSyncOffsets);
IPC_MESSAGE_HANDLER(CommandBufferMsg_GetGetOffset, OnGetGetOffset);
IPC_MESSAGE_HANDLER(CommandBufferMsg_GetPutOffset, OnGetPutOffset);
IPC_MESSAGE_HANDLER(CommandBufferMsg_CreateTransferBuffer,
OnCreateTransferBuffer);
IPC_MESSAGE_HANDLER(CommandBufferMsg_DestroyTransferBuffer,
OnDestroyTransferBuffer);
IPC_MESSAGE_HANDLER(CommandBufferMsg_GetTransferBuffer,
OnGetTransferBuffer);
IPC_MESSAGE_HANDLER(CommandBufferMsg_GetToken, OnGetToken);
IPC_MESSAGE_HANDLER(CommandBufferMsg_ResetParseError, OnResetParseError);
IPC_MESSAGE_HANDLER(CommandBufferMsg_GetErrorStatus, OnGetErrorStatus);
IPC_MESSAGE_UNHANDLED_ERROR()
IPC_END_MESSAGE_MAP()
}
|
