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
|
// Copyright 2014 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 COMPONENTS_MUS_GLES2_COMMAND_BUFFER_IMPL_H_
#define COMPONENTS_MUS_GLES2_COMMAND_BUFFER_IMPL_H_
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/single_thread_task_runner.h"
#include "components/mus/public/interfaces/command_buffer.mojom.h"
#include "third_party/mojo/src/mojo/public/cpp/bindings/binding.h"
namespace mus {
class CommandBufferDriver;
class CommandBufferImplObserver;
class GpuState;
// This class listens to the CommandBuffer message pipe on a low-latency thread
// so that we can insert sync points without blocking on the GL driver. It
// forwards most method calls to the CommandBufferDriver, which runs on the
// same thread as the native viewport.
class CommandBufferImpl : public mojo::CommandBuffer {
public:
CommandBufferImpl(mojo::InterfaceRequest<CommandBuffer> request,
scoped_refptr<GpuState> gpu_state,
scoped_ptr<CommandBufferDriver> driver);
// mojo::CommandBuffer:
void Initialize(mojo::CommandBufferSyncClientPtr sync_client,
mojo::CommandBufferSyncPointClientPtr sync_point_client,
mojo::CommandBufferLostContextObserverPtr loss_observer,
mojo::ScopedSharedBufferHandle shared_state) override;
void SetGetBuffer(int32_t buffer) override;
void Flush(int32_t put_offset) override;
void MakeProgress(int32_t last_get_offset) override;
void RegisterTransferBuffer(int32_t id,
mojo::ScopedSharedBufferHandle transfer_buffer,
uint32_t size) override;
void DestroyTransferBuffer(int32_t id) override;
void InsertSyncPoint(bool retire) override;
void RetireSyncPoint(uint32_t sync_point) override;
void Echo(const mojo::Callback<void()>& callback) override;
void CreateImage(int32_t id,
mojo::ScopedHandle memory_handle,
int32_t type,
mojo::SizePtr size,
int32_t format,
int32_t internal_format) override;
void DestroyImage(int32_t id) override;
void DidLoseContext();
void set_observer(CommandBufferImplObserver* observer) {
observer_ = observer;
}
private:
class CommandBufferDriverClientImpl;
friend class base::DeleteHelper<CommandBufferImpl>;
~CommandBufferImpl() override;
void BindToRequest(mojo::InterfaceRequest<CommandBuffer> request);
void OnConnectionError();
scoped_refptr<GpuState> gpu_state_;
scoped_refptr<base::SingleThreadTaskRunner> driver_task_runner_;
scoped_ptr<CommandBufferDriver> driver_;
mojo::CommandBufferSyncPointClientPtr sync_point_client_;
mojo::Binding<CommandBuffer> binding_;
CommandBufferImplObserver* observer_;
base::WeakPtrFactory<CommandBufferImpl> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(CommandBufferImpl);
};
} // namespace mus
#endif // COMPONENTS_MUS_GLES2_COMMAND_BUFFER_IMPL_H_
|
