Qt
Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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qopenglfunctions_1_0.cpp
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1// Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB)
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3/***************************************************************************
4** This file was generated by glgen version 0.1
5** Command line was: glgen
6**
7** glgen is Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB)
8**
9** This is an auto-generated file.
10** Do not edit! All changes made to it will be lost.
11**
12****************************************************************************/
13
15#include "qopenglcontext.h"
16
18
35 , d_1_0_Core(nullptr)
36 , d_1_0_Deprecated(nullptr)
37{
38}
39
41{
42 if (d_1_0_Core) {
43 d_1_0_Core->refs.deref();
44 Q_ASSERT(d_1_0_Core->refs.loadRelaxed());
45 }
46 if (d_1_0_Deprecated) {
47 d_1_0_Deprecated->refs.deref();
48 Q_ASSERT(d_1_0_Deprecated->refs.loadRelaxed());
49 }
50}
51
53{
54 if ( isInitialized() )
55 return true;
56
58
59 // If owned by a context object make sure it is current.
60 // Also check that current context is capable of resolving all needed functions
61 if (((owningContext() && owningContext() == context) || !owningContext())
62 && QOpenGLFunctions_1_0::isContextCompatible(context))
63 {
64 // Associate with private implementation, creating if necessary
65 // Function pointers in the backends are resolved at creation time
68 d_1_0_Core = static_cast<QOpenGLFunctions_1_0_CoreBackend*>(d);
69 d->refs.ref();
70
72 d_1_0_Deprecated = static_cast<QOpenGLFunctions_1_0_DeprecatedBackend*>(d);
73 d->refs.ref();
74
76 }
77 return isInitialized();
78}
79
80bool QOpenGLFunctions_1_0::isContextCompatible(QOpenGLContext *context)
81{
83 QSurfaceFormat f = context->format();
84 const QPair<int, int> v = qMakePair(f.majorVersion(), f.minorVersion());
85 if (v < qMakePair(1, 0))
86 return false;
87
88 if (f.profile() == QSurfaceFormat::CoreProfile)
89 return false;
90
91 return true;
92}
93
94QOpenGLVersionProfile QOpenGLFunctions_1_0::versionProfile()
95{
97 v.setVersion(1, 0);
98 return v;
99}
100
static QOpenGLVersionFunctionsBackend * functionsBackend(QOpenGLContext *context, QOpenGLVersionFunctionsBackend::Version v)
QOpenGLContext * owningContext() const
bool ref() noexcept
bool deref() noexcept
T loadRelaxed() const noexcept
\inmodule QtGui
static QOpenGLContext * currentContext()
Returns the last context which called makeCurrent in the current thread, or \nullptr,...
static constexpr Version versionStatus()
bool initializeOpenGLFunctions() override
void setVersion(int majorVersion, int minorVersion)
Sets the major and minor version numbers to majorVersion and minorVersion respectively.
The QSurfaceFormat class represents the format of a QSurface. \inmodule QtGui.
Combined button and popup list for selecting options.
static void * context
GLsizei const GLfloat * v
[13]
GLfloat GLfloat f
QT_BEGIN_NAMESPACE constexpr decltype(auto) qMakePair(T1 &&value1, T2 &&value2) noexcept(noexcept(std::make_pair(std::forward< T1 >(value1), std::forward< T2 >(value2))))
Definition qpair.h:19
#define Q_ASSERT(cond)
Definition qrandom.cpp:47
QObject::connect nullptr