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
|
// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_GL_GL_FENCE_EGL_H_
#define UI_GL_GL_FENCE_EGL_H_
#include "ui/gl/gl_bindings.h"
#include "ui/gl/gl_export.h"
#include "ui/gl/gl_fence.h"
namespace gl {
class GL_EXPORT GLFenceEGL : public GLFence {
public:
GLFenceEGL(const GLFenceEGL&) = delete;
GLFenceEGL& operator=(const GLFenceEGL&) = delete;
~GLFenceEGL() override;
// Factory method using default initialization.
static std::unique_ptr<GLFenceEGL> Create();
// Factory method using custom initialization.
static std::unique_ptr<GLFenceEGL> Create(EGLenum type, EGLint* attribs);
// On i965, passing an already signalled fence has a large performance
// cost. See crbug.com/1246254. This function should be called at
// initialization to enable checking the fence before waiting on
// i965 platforms. TODO(crbug.com/40196471): Remove this.
static void CheckEGLFenceBeforeWait();
static void FlushBeforeCreateFence();
// GLFence implementation:
bool HasCompleted() override;
void ClientWait() override;
void ServerWait() override;
void Invalidate() override;
// EGL-specific wait-with-timeout implementation:
EGLint ClientWaitWithTimeoutNanos(EGLTimeKHR timeout);
protected:
GLFenceEGL();
bool InitializeInternal(EGLenum type, EGLint* attribs);
EGLSyncKHR sync_;
EGLDisplay display_;
};
} // namespace gl
#endif // UI_GL_GL_FENCE_EGL_H_
|
