289 lines
11 KiB
C++
289 lines
11 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB)
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the QtOpenGL module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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**
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** This file was generated by glgen version 0.1
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** Command line was: glgen
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**
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** glgen is Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB)
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**
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** This is an auto-generated file.
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** Do not edit! All changes made to it will be lost.
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**
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****************************************************************************/
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#include "qopenglversionfunctionsfactory.h"
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#include "qopenglversionfunctions_p.h"
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#if !QT_CONFIG(opengles2)
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#include "qopenglfunctions_4_5_core.h"
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#include "qopenglfunctions_4_5_compatibility.h"
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#include "qopenglfunctions_4_4_core.h"
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#include "qopenglfunctions_4_4_compatibility.h"
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#include "qopenglfunctions_4_3_core.h"
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#include "qopenglfunctions_4_3_compatibility.h"
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#include "qopenglfunctions_4_2_core.h"
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#include "qopenglfunctions_4_2_compatibility.h"
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#include "qopenglfunctions_4_1_core.h"
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#include "qopenglfunctions_4_1_compatibility.h"
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#include "qopenglfunctions_4_0_core.h"
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#include "qopenglfunctions_4_0_compatibility.h"
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#include "qopenglfunctions_3_3_core.h"
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#include "qopenglfunctions_3_3_compatibility.h"
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#include "qopenglfunctions_3_2_core.h"
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#include "qopenglfunctions_3_2_compatibility.h"
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#include "qopenglfunctions_3_1.h"
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#include "qopenglfunctions_3_0.h"
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#include "qopenglfunctions_2_1.h"
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#include "qopenglfunctions_2_0.h"
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#include "qopenglfunctions_1_5.h"
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#include "qopenglfunctions_1_4.h"
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#include "qopenglfunctions_1_3.h"
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#include "qopenglfunctions_1_2.h"
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#include "qopenglfunctions_1_1.h"
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#include "qopenglfunctions_1_0.h"
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#else
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#include "qopenglfunctions_es2.h"
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#endif
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QT_BEGIN_NAMESPACE
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static QAbstractOpenGLFunctions *createFunctions(const QOpenGLVersionProfile &versionProfile)
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{
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#if !QT_CONFIG(opengles2)
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const int major = versionProfile.version().first;
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const int minor = versionProfile.version().second;
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if (versionProfile.hasProfiles()) {
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switch (versionProfile.profile()) {
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case QSurfaceFormat::CoreProfile:
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if (major == 4 && minor == 5)
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return new QOpenGLFunctions_4_5_Core;
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else if (major == 4 && minor == 4)
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return new QOpenGLFunctions_4_4_Core;
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else if (major == 4 && minor == 3)
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return new QOpenGLFunctions_4_3_Core;
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else if (major == 4 && minor == 2)
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return new QOpenGLFunctions_4_2_Core;
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else if (major == 4 && minor == 1)
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return new QOpenGLFunctions_4_1_Core;
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else if (major == 4 && minor == 0)
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return new QOpenGLFunctions_4_0_Core;
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else if (major == 3 && minor == 3)
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return new QOpenGLFunctions_3_3_Core;
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else if (major == 3 && minor == 2)
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return new QOpenGLFunctions_3_2_Core;
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break;
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case QSurfaceFormat::CompatibilityProfile:
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if (major == 4 && minor == 5)
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return new QOpenGLFunctions_4_5_Compatibility;
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else if (major == 4 && minor == 4)
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return new QOpenGLFunctions_4_4_Compatibility;
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else if (major == 4 && minor == 3)
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return new QOpenGLFunctions_4_3_Compatibility;
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else if (major == 4 && minor == 2)
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return new QOpenGLFunctions_4_2_Compatibility;
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else if (major == 4 && minor == 1)
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return new QOpenGLFunctions_4_1_Compatibility;
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else if (major == 4 && minor == 0)
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return new QOpenGLFunctions_4_0_Compatibility;
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else if (major == 3 && minor == 3)
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return new QOpenGLFunctions_3_3_Compatibility;
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else if (major == 3 && minor == 2)
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return new QOpenGLFunctions_3_2_Compatibility;
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break;
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case QSurfaceFormat::NoProfile:
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default:
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break;
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};
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} else {
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if (major == 3 && minor == 1)
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return new QOpenGLFunctions_3_1;
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else if (major == 3 && minor == 0)
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return new QOpenGLFunctions_3_0;
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else if (major == 2 && minor == 1)
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return new QOpenGLFunctions_2_1;
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else if (major == 2 && minor == 0)
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return new QOpenGLFunctions_2_0;
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else if (major == 1 && minor == 5)
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return new QOpenGLFunctions_1_5;
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else if (major == 1 && minor == 4)
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return new QOpenGLFunctions_1_4;
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else if (major == 1 && minor == 3)
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return new QOpenGLFunctions_1_3;
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else if (major == 1 && minor == 2)
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return new QOpenGLFunctions_1_2;
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else if (major == 1 && minor == 1)
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return new QOpenGLFunctions_1_1;
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else if (major == 1 && minor == 0)
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return new QOpenGLFunctions_1_0;
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}
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return nullptr;
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#else
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Q_UNUSED(versionProfile);
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return new QOpenGLFunctions_ES2;
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#endif
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}
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/*!
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\class QOpenGLVersionFunctionsFactory
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\inmodule QtOpenGL
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\since 6.0
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\brief Provides access to OpenGL functions for a specified version and
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profile.
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*/
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/*!
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\fn static T *QOpenGLVersionFunctionsFactory::get(QOpenGLContext *context)
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\overload get()
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Returns a pointer to an object that provides access to all functions for
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the version and profile of this context. There is no need to call
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QAbstractOpenGLFunctions::initializeOpenGLFunctions() as long as the \a context
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is current. It is also possible to call this function when the \a context is not
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current, but in that case it is the caller's responsibility to ensure proper
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initialization by calling QAbstractOpenGLFunctions::initializeOpenGLFunctions()
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afterwards.
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Usually one would use the template version of this function to automatically
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have the result cast to the correct type.
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\code
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auto funcs = QOpenGLVersionFunctionsFactory::get<QOpenGLFunctions_3_3_Core>(context);
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if (!funcs) {
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qFatal("Could not obtain required OpenGL context version");
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}
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\endcode
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It is possible to request a functions object for a different version and profile
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than that for which the context was created. To do this either use the template
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version of this function specifying the desired functions object type as the
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template parameter or by passing in a QOpenGLVersionProfile object as an argument
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to the non-template function.
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Note that requests for function objects of other versions or profiles can fail and
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in doing so will return \nullptr. Situations in which creation of the functions
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object can fail are if the request cannot be satisfied due to asking for functions
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that are not in the version or profile of this context. For example:
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\list
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\li Requesting a 3.3 core profile functions object would succeed.
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\li Requesting a 3.3 compatibility profile functions object would fail. We would fail
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to resolve the deprecated functions.
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\li Requesting a 4.3 core profile functions object would fail. We would fail to resolve
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the new core functions introduced in versions 4.0-4.3.
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\li Requesting a 3.1 functions object would succeed. There is nothing in 3.1 that is not
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also in 3.3 core.
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\endlist
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Note that if creating a functions object via this method that the QOpenGLContext
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retains ownership of the object. This is to allow the object to be cached and shared.
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*/
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/*!
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Returns a pointer to an object that provides access to all functions for the
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\a versionProfile of the \a context. There is no need to call
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QAbstractOpenGLFunctions::initializeOpenGLFunctions() as long as the \a context
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is current. It is also possible to call this function when the \a context is not
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current, but in that case it is the caller's responsibility to ensure proper
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initialization by calling QAbstractOpenGLFunctions::initializeOpenGLFunctions()
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afterwards.
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Usually one would use the template version of this function to automatically
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have the result cast to the correct type.
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*/
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QAbstractOpenGLFunctions *QOpenGLVersionFunctionsFactory::get(const QOpenGLVersionProfile &versionProfile, QOpenGLContext *context)
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{
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if (!context)
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context = QOpenGLContext::currentContext();
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if (!context) {
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qWarning("versionFunctions: No OpenGL context");
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return nullptr;
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}
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#if !QT_CONFIG(opengles2)
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if (context->isOpenGLES()) {
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qWarning("versionFunctions: Not supported on OpenGL ES");
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return nullptr;
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}
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#endif // !QT_CONFIG(opengles2)
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const QSurfaceFormat f = context->format();
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// Ensure we have a valid version and profile. Default to context's if none specified
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QOpenGLVersionProfile vp = versionProfile;
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if (!vp.isValid())
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vp = QOpenGLVersionProfile(f);
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// Check that context is compatible with requested version
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const QPair<int, int> v = qMakePair(f.majorVersion(), f.minorVersion());
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if (v < vp.version())
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return nullptr;
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// If this context only offers core profile functions then we can't create
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// function objects for legacy or compatibility profile requests
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if (((vp.hasProfiles() && vp.profile() != QSurfaceFormat::CoreProfile) || vp.isLegacyVersion())
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&& f.profile() == QSurfaceFormat::CoreProfile)
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return nullptr;
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// Create object if suitable one not cached
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QAbstractOpenGLFunctions* funcs = nullptr;
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// TODO: replace with something else
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auto *data = QOpenGLContextVersionData::forContext(context);
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auto it = data->functions.constFind(vp);
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if (it == data->functions.constEnd()) {
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funcs = createFunctions(vp);
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if (funcs) {
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funcs->setOwningContext(context);
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data->functions.insert(vp, funcs);
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}
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} else {
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funcs = it.value();
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}
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if (funcs && QOpenGLContext::currentContext() == context)
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funcs->initializeOpenGLFunctions();
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return funcs;
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}
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QT_END_NAMESPACE
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