| /**************************************************************************** |
| ** |
| ** Copyright (C) 2014 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Sean Harmer <sean.harmer@kdab.com> |
| ** Contact: http://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtGui module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL21$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see http://www.qt.io/terms-conditions. For further |
| ** information use the contact form at http://www.qt.io/contact-us. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 2.1 or version 3 as published by the Free |
| ** Software Foundation and appearing in the file LICENSE.LGPLv21 and |
| ** LICENSE.LGPLv3 included in the packaging of this file. Please review the |
| ** following information to ensure the GNU Lesser General Public License |
| ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and |
| ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
| ** |
| ** As a special exception, The Qt Company gives you certain additional |
| ** rights. These rights are described in The Qt Company LGPL Exception |
| ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #ifndef QOPENGLVERTEXARRAYOBJECT_P_H |
| #define QOPENGLVERTEXARRAYOBJECT_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists for the convenience |
| // of the Qt OpenGL classes. This header file may change from |
| // version to version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <QtCore/qglobal.h> |
| |
| #ifndef QT_NO_OPENGL |
| |
| #include <QtGui/qopengl.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QOpenGLVertexArrayObjectHelper; |
| class QOpenGLContext; |
| |
| void Q_GUI_EXPORT qtInitializeVertexArrayObjectHelper(QOpenGLVertexArrayObjectHelper *helper, QOpenGLContext *context); |
| |
| class QOpenGLVertexArrayObjectHelper |
| { |
| Q_DISABLE_COPY(QOpenGLVertexArrayObjectHelper) |
| |
| public: |
| explicit inline QOpenGLVertexArrayObjectHelper(QOpenGLContext *context) |
| : GenVertexArrays(Q_NULLPTR) |
| , DeleteVertexArrays(Q_NULLPTR) |
| , BindVertexArray(Q_NULLPTR) |
| , IsVertexArray(Q_NULLPTR) |
| { |
| qtInitializeVertexArrayObjectHelper(this, context); |
| } |
| |
| inline bool isValid() const |
| { |
| return GenVertexArrays && DeleteVertexArrays && BindVertexArray && IsVertexArray; |
| } |
| |
| inline void glGenVertexArrays(GLsizei n, GLuint *arrays) const |
| { |
| GenVertexArrays(n, arrays); |
| } |
| |
| inline void glDeleteVertexArrays(GLsizei n, const GLuint *arrays) const |
| { |
| DeleteVertexArrays(n, arrays); |
| } |
| |
| inline void glBindVertexArray(GLuint array) const |
| { |
| BindVertexArray(array); |
| } |
| |
| inline GLboolean glIsVertexArray(GLuint array) const |
| { |
| return IsVertexArray(array); |
| } |
| |
| private: |
| friend void Q_GUI_EXPORT qtInitializeVertexArrayObjectHelper(QOpenGLVertexArrayObjectHelper *helper, QOpenGLContext *context); |
| |
| // Function signatures are equivalent between desktop core, ARB, APPLE, ES 3 and ES 2 extensions |
| typedef void (QOPENGLF_APIENTRYP qt_GenVertexArrays_t)(GLsizei n, GLuint *arrays); |
| typedef void (QOPENGLF_APIENTRYP qt_DeleteVertexArrays_t)(GLsizei n, const GLuint *arrays); |
| typedef void (QOPENGLF_APIENTRYP qt_BindVertexArray_t)(GLuint array); |
| typedef GLboolean (QOPENGLF_APIENTRYP qt_IsVertexArray_t)(GLuint array); |
| |
| qt_GenVertexArrays_t GenVertexArrays; |
| qt_DeleteVertexArrays_t DeleteVertexArrays; |
| qt_BindVertexArray_t BindVertexArray; |
| qt_IsVertexArray_t IsVertexArray; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // QT_NO_OPENGL |
| |
| #endif // QOPENGLVERTEXARRAYOBJECT_P_H |