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
|
// 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.
#include "ui/gl/gl_context_stub.h"
#include "build/build_config.h"
#include "ui/gl/gl_gl_api_implementation.h"
#include "ui/gl/gl_stub_api.h"
namespace gl {
GLContextStub::GLContextStub() : GLContextStub(nullptr) {}
GLContextStub::GLContextStub(GLShareGroup* share_group)
: GLContextReal(share_group),
use_stub_api_(false),
version_str_("OpenGL ES 3.0") {
SetExtensionsString("GL_EXT_framebuffer_object");
}
bool GLContextStub::InitializeImpl(GLSurface* compatible_surface,
const GLContextAttribs& attribs) {
return true;
}
bool GLContextStub::MakeCurrentImpl(GLSurface* surface) {
DCHECK(surface);
BindGLApi();
SetCurrent(surface);
InitializeDynamicBindings();
return true;
}
void GLContextStub::ReleaseCurrent(GLSurface* surface) {
SetCurrent(nullptr);
}
bool GLContextStub::IsCurrent(GLSurface* surface) {
return GetRealCurrent() == this;
}
void* GLContextStub::GetHandle() {
return nullptr;
}
std::string GLContextStub::GetGLVersion() {
return version_str_;
}
std::string GLContextStub::GetGLRenderer() {
return std::string("CHROMIUM");
}
unsigned int GLContextStub::CheckStickyGraphicsResetStatusImpl() {
DCHECK(IsCurrent(nullptr));
if ((graphics_reset_status_ == GL_NO_ERROR) && HasRobustness()) {
graphics_reset_status_ = glGetGraphicsResetStatusARB();
}
return graphics_reset_status_;
}
void GLContextStub::SetUseStubApi(bool stub_api) {
use_stub_api_ = stub_api;
}
void GLContextStub::SetExtensionsString(const char* extensions) {
SetExtensionsFromString(extensions);
}
void GLContextStub::SetGLVersionString(const char* version_str) {
version_str_ = std::string(version_str ? version_str : "");
}
bool GLContextStub::HasRobustness() {
return HasExtension("GL_ARB_robustness") ||
HasExtension("GL_KHR_robustness") || HasExtension("GL_EXT_robustness");
}
#if BUILDFLAG(IS_MAC)
void GLContextStub::FlushForDriverCrashWorkaround() {}
#endif
GLContextStub::~GLContextStub() {
OnContextWillDestroy();
}
GLApi* GLContextStub::CreateGLApi(DriverGL* driver) {
if (use_stub_api_) {
GLStubApi* stub_api = new GLStubApi();
if (!version_str_.empty()) {
stub_api->set_version(version_str_);
}
if (!extension_string().empty()) {
stub_api->set_extensions(extension_string());
}
return stub_api;
}
return GLContext::CreateGLApi(driver);
}
} // namespace gl
|
