blob: dd22ac4762d28637f999f56cb435eb337410ef43 (
plain)
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
|
// 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.
#ifndef GPU_COMMAND_BUFFER_SERVICE_GPU_PROCESSOR_H_
#define GPU_COMMAND_BUFFER_SERVICE_GPU_PROCESSOR_H_
#include "app/gfx/native_widget_types.h"
#include "base/ref_counted.h"
#include "base/scoped_ptr.h"
#include "base/shared_memory.h"
#include "base/task.h"
#include "gpu/command_buffer/common/command_buffer.h"
#include "gpu/command_buffer/service/cmd_buffer_engine.h"
#include "gpu/command_buffer/service/cmd_parser.h"
#include "gpu/command_buffer/service/gles2_cmd_decoder.h"
namespace gpu {
// This class processes commands in a command buffer. It is event driven and
// posts tasks to the current message loop to do additional work.
class GPUProcessor : public base::RefCounted<GPUProcessor>,
public CommandBufferEngine {
public:
explicit GPUProcessor(CommandBuffer* command_buffer);
// This constructor is for unit tests.
GPUProcessor(CommandBuffer* command_buffer,
gles2::GLES2Decoder* decoder,
CommandParser* parser,
int commands_per_update);
virtual bool Initialize(gfx::PluginWindowHandle hwnd);
virtual ~GPUProcessor();
virtual void Destroy();
virtual void ProcessCommands();
// Implementation of CommandBufferEngine.
virtual Buffer GetSharedMemoryBuffer(int32 shm_id);
virtual void set_token(int32 token);
virtual bool SetGetOffset(int32 offset);
virtual int32 GetGetOffset();
private:
// The GPUProcessor holds a weak reference to the CommandBuffer. The
// CommandBuffer owns the GPUProcessor and holds a strong reference to it
// through the ProcessCommands callback.
CommandBuffer* command_buffer_;
scoped_ptr< ::base::SharedMemory> mapped_ring_buffer_;
int commands_per_update_;
scoped_ptr<gles2::GLES2Decoder> decoder_;
scoped_ptr<CommandParser> parser_;
};
} // namespace gpu
// Callbacks to the GPUProcessor hold a reference count.
template <typename Method>
class CallbackStorage<gpu::GPUProcessor, Method> {
public:
CallbackStorage(gpu::GPUProcessor* obj, Method method)
: obj_(obj),
meth_(method) {
DCHECK(obj_);
obj_->AddRef();
}
~CallbackStorage() {
obj_->Release();
}
protected:
gpu::GPUProcessor* obj_;
Method meth_;
private:
DISALLOW_COPY_AND_ASSIGN(CallbackStorage);
};
#endif // GPU_COMMAND_BUFFER_SERVICE_GPU_PROCESSOR_H_
|
