71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
// Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB)
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
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#include "qopenglfunctions_es2.h"
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#include "qopenglcontext.h"
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QT_BEGIN_NAMESPACE
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/*!
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\class QOpenGLFunctions_ES2
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\inmodule QtOpenGL
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\since 5.1
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\wrapper
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\brief The QOpenGLFunctions_ES2 class provides all functions for OpenGL ES 2.
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This class is a wrapper for OpenGL ES 2 functions. See reference pages on
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\l {http://www.khronos.org/opengles/sdk/docs/man/}{khronos.org} for
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function documentation.
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\sa QAbstractOpenGLFunctions
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*/
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QOpenGLFunctions_ES2::QOpenGLFunctions_ES2()
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: QAbstractOpenGLFunctions()
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, d_es2(0)
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{
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}
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QOpenGLFunctions_ES2::~QOpenGLFunctions_ES2()
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{
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}
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bool QOpenGLFunctions_ES2::initializeOpenGLFunctions()
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{
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if ( isInitialized() )
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return true;
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QOpenGLContext* context = QOpenGLContext::currentContext();
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// If owned by a context object make sure it is current.
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// Also check that current context is compatible
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if (((owningContext() && owningContext() == context) || !owningContext())
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&& QOpenGLFunctions_ES2::isContextCompatible(context))
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{
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// Nothing to do, just flag that we are initialized
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QAbstractOpenGLFunctions::initializeOpenGLFunctions();
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}
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return isInitialized();
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}
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bool QOpenGLFunctions_ES2::isContextCompatible(QOpenGLContext *context)
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{
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Q_ASSERT(context);
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QSurfaceFormat f = context->format();
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const QPair<int, int> v = qMakePair(f.majorVersion(), f.minorVersion());
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if (v < qMakePair(2, 0))
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return false;
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if (f.renderableType() != QSurfaceFormat::OpenGLES)
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return false;
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return true;
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}
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QOpenGLVersionProfile QOpenGLFunctions_ES2::versionProfile()
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{
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QOpenGLVersionProfile v;
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return v;
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}
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QT_END_NAMESPACE
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