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
|
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GPU_IPC_GL_IN_PROCESS_CONTEXT_H_
#define GPU_IPC_GL_IN_PROCESS_CONTEXT_H_
#include <memory>
#include "base/task/single_thread_task_runner.h"
#include "gpu/command_buffer/common/context_creation_attribs.h"
#include "gpu/command_buffer/service/command_buffer_task_executor.h"
#include "gpu/ipc/gl_in_process_context_export.h"
#include "gpu/ipc/in_process_command_buffer.h"
#include "ui/gfx/native_widget_types.h"
namespace gpu {
class SharedImageInterface;
class TransferBuffer;
struct GpuFeatureInfo;
struct SharedMemoryLimits;
namespace gles2 {
class GLES2CmdHelper;
class GLES2Implementation;
}
// Wraps everything needed to use an in process GL context.
class GL_IN_PROCESS_CONTEXT_EXPORT GLInProcessContext {
public:
// You must call Initialize() before using the context.
GLInProcessContext();
GLInProcessContext(const GLInProcessContext&) = delete;
GLInProcessContext& operator=(const GLInProcessContext&) = delete;
~GLInProcessContext();
// Initialize the GLInProcessContext, if |is_offscreen| is true, renders to an
// offscreen context. |attrib_list| must be null or a NONE-terminated list
// of attribute/value pairs.
// If |surface| is not null, then it must match |is_offscreen|,
// |window| must be gfx::kNullAcceleratedWidget, and the command buffer
// service must run on the same thread as this client because GLSurface is
// not thread safe. If |surface| is null, then the other parameters are used
// to correctly create a surface.
ContextResult Initialize(CommandBufferTaskExecutor* task_executor,
const ContextCreationAttribs& attribs,
const SharedMemoryLimits& memory_limits);
const Capabilities& GetCapabilities() const;
const GpuFeatureInfo& GetGpuFeatureInfo() const;
// Allows direct access to the GLES2 implementation so a GLInProcessContext
// can be used without making it current.
gles2::GLES2Implementation* GetImplementation();
SharedImageInterface* GetSharedImageInterface();
private:
// The destruction order is important, don't reorder these member variables.
std::unique_ptr<InProcessCommandBuffer> command_buffer_;
std::unique_ptr<gles2::GLES2CmdHelper> gles2_helper_;
std::unique_ptr<TransferBuffer> transfer_buffer_;
std::unique_ptr<gles2::GLES2Implementation> gles2_implementation_;
};
} // namespace gpu
#endif // GPU_IPC_GL_IN_PROCESS_CONTEXT_H_
|
