1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2014 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Sean Harmer <sean.harmer@kdab.com> 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtGui module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QOPENGLVERTEXARRAYOBJECT_P_H 41 #define QOPENGLVERTEXARRAYOBJECT_P_H 42 43 // 44 // W A R N I N G 45 // ------------- 46 // 47 // This file is not part of the Qt API. It exists for the convenience 48 // of the Qt OpenGL classes. This header file may change from 49 // version to version without notice, or even be removed. 50 // 51 // We mean it. 52 // 53 54 #include <QtCore/qglobal.h> 55 56 #ifndef QT_NO_OPENGL 57 58 #include <QtGui/qopengl.h> 59 60 QT_BEGIN_NAMESPACE 61 62 class QOpenGLVertexArrayObjectHelper; 63 class QOpenGLContext; 64 65 void Q_GUI_EXPORT qtInitializeVertexArrayObjectHelper(QOpenGLVertexArrayObjectHelper *helper, QOpenGLContext *context); 66 67 class QOpenGLVertexArrayObjectHelper 68 { Q_DISABLE_COPY(QOpenGLVertexArrayObjectHelper)69 Q_DISABLE_COPY(QOpenGLVertexArrayObjectHelper) 70 71 public: 72 explicit inline QOpenGLVertexArrayObjectHelper(QOpenGLContext *context) 73 : GenVertexArrays(nullptr) 74 , DeleteVertexArrays(nullptr) 75 , BindVertexArray(nullptr) 76 , IsVertexArray(nullptr) 77 { 78 qtInitializeVertexArrayObjectHelper(this, context); 79 } 80 isValid()81 inline bool isValid() const 82 { 83 return GenVertexArrays && DeleteVertexArrays && BindVertexArray && IsVertexArray; 84 } 85 glGenVertexArrays(GLsizei n,GLuint * arrays)86 inline void glGenVertexArrays(GLsizei n, GLuint *arrays) const 87 { 88 GenVertexArrays(n, arrays); 89 } 90 glDeleteVertexArrays(GLsizei n,const GLuint * arrays)91 inline void glDeleteVertexArrays(GLsizei n, const GLuint *arrays) const 92 { 93 DeleteVertexArrays(n, arrays); 94 } 95 glBindVertexArray(GLuint array)96 inline void glBindVertexArray(GLuint array) const 97 { 98 BindVertexArray(array); 99 } 100 glIsVertexArray(GLuint array)101 inline GLboolean glIsVertexArray(GLuint array) const 102 { 103 return IsVertexArray(array); 104 } 105 106 private: 107 friend void Q_GUI_EXPORT qtInitializeVertexArrayObjectHelper(QOpenGLVertexArrayObjectHelper *helper, QOpenGLContext *context); 108 109 // Function signatures are equivalent between desktop core, ARB, APPLE, ES 3 and ES 2 extensions 110 typedef void (QOPENGLF_APIENTRYP qt_GenVertexArrays_t)(GLsizei n, GLuint *arrays); 111 typedef void (QOPENGLF_APIENTRYP qt_DeleteVertexArrays_t)(GLsizei n, const GLuint *arrays); 112 typedef void (QOPENGLF_APIENTRYP qt_BindVertexArray_t)(GLuint array); 113 typedef GLboolean (QOPENGLF_APIENTRYP qt_IsVertexArray_t)(GLuint array); 114 115 qt_GenVertexArrays_t GenVertexArrays; 116 qt_DeleteVertexArrays_t DeleteVertexArrays; 117 qt_BindVertexArray_t BindVertexArray; 118 qt_IsVertexArray_t IsVertexArray; 119 }; 120 121 QT_END_NAMESPACE 122 123 #endif // QT_NO_OPENGL 124 125 #endif // QOPENGLVERTEXARRAYOBJECT_P_H 126