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+/****************************************************************************
+**
+** Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtOpenGL module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://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 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QOPENGLQUERYHELPER_P_H
+#define QOPENGLQUERYHELPER_P_H
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtGui/private/qtguiglobal_p.h>
+
+#if !defined(QT_OPENGL_ES_2)
+
+#include <QtGui/QOpenGLContext>
+
+QT_BEGIN_NAMESPACE
+
+// Helper class used by QOpenGLTimerQuery and later will be used by
+// QOpenGLOcclusionQuery
+class QOpenGLQueryHelper
+{
+public:
+ QOpenGLQueryHelper(QOpenGLContext *context)
+ : GetQueryObjectuiv(nullptr),
+ GetQueryObjectiv(nullptr),
+ GetQueryiv(nullptr),
+ EndQuery(nullptr),
+ BeginQuery(nullptr),
+ IsQuery(nullptr),
+ DeleteQueries(nullptr),
+ GenQueries(nullptr),
+ GetInteger64v(nullptr),
+ GetQueryObjectui64v(nullptr),
+ GetQueryObjecti64v(nullptr),
+ QueryCounter(nullptr)
+ {
+ Q_ASSERT(context);
+
+ // Core in OpenGL >=1.5
+ GetQueryObjectuiv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLuint *)>(context->getProcAddress("glGetQueryObjectuiv"));
+ GetQueryObjectiv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint *)>(context->getProcAddress("glGetQueryObjectiv"));
+ GetQueryiv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLenum , GLint *)>(context->getProcAddress("glGetQueryiv"));
+ EndQuery = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum )>(context->getProcAddress("glEndQuery"));
+ BeginQuery = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLuint )>(context->getProcAddress("glBeginQuery"));
+ IsQuery = reinterpret_cast<GLboolean (QOPENGLF_APIENTRYP)(GLuint )>(context->getProcAddress("glIsQuery"));
+ DeleteQueries = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLsizei , const GLuint *)>(context->getProcAddress("glDeleteQueries"));
+ GenQueries = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLsizei , GLuint *)>(context->getProcAddress("glGenQueries"));
+
+ // Core in OpenGL >=3.2
+ GetInteger64v = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint64 *)>(context->getProcAddress("glGetInteger64v"));
+
+ // Core in OpenGL >=3.3 / ARB_timer_query
+ GetQueryObjectui64v = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLuint64 *)>(context->getProcAddress("glGetQueryObjectui64v"));
+ GetQueryObjecti64v = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint64 *)>(context->getProcAddress("glGetQueryObjecti64v"));
+ QueryCounter = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum )>(context->getProcAddress("glQueryCounter"));
+ }
+
+ inline void glGetQueryObjectuiv(GLuint id, GLenum pname, GLuint *params)
+ {
+ GetQueryObjectuiv(id, pname, params);
+ }
+
+ inline void glGetQueryObjectiv(GLuint id, GLenum pname, GLint *params)
+ {
+ GetQueryObjectiv(id, pname, params);
+ }
+
+ inline void glGetQueryiv(GLenum target, GLenum pname, GLint *params)
+ {
+ GetQueryiv(target, pname, params);
+ }
+
+ inline void glEndQuery(GLenum target)
+ {
+ EndQuery(target);
+ }
+
+ inline void glBeginQuery(GLenum target, GLuint id)
+ {
+ BeginQuery(target, id);
+ }
+
+ inline GLboolean glIsQuery(GLuint id)
+ {
+ return IsQuery(id);
+ }
+
+ inline void glDeleteQueries(GLsizei n, const GLuint *ids)
+ {
+ DeleteQueries(n, ids);
+ }
+
+ inline void glGenQueries(GLsizei n, GLuint *ids)
+ {
+ GenQueries(n, ids);
+ }
+
+ inline void glGetInteger64v(GLenum pname, GLint64 *params)
+ {
+ GetInteger64v(pname, params);
+ }
+
+ inline void glGetQueryObjectui64v(GLuint id, GLenum pname, GLuint64 *params)
+ {
+ GetQueryObjectui64v(id, pname, params);
+ }
+
+ inline void glGetQueryObjecti64v(GLuint id, GLenum pname, GLint64 *params)
+ {
+ GetQueryObjecti64v(id, pname, params);
+ }
+
+ inline void glQueryCounter(GLuint id, GLenum target)
+ {
+ QueryCounter(id, target);
+ }
+
+private:
+ // Core in OpenGL >=1.5
+ void (QOPENGLF_APIENTRYP GetQueryObjectuiv)(GLuint id, GLenum pname, GLuint *params);
+ void (QOPENGLF_APIENTRYP GetQueryObjectiv)(GLuint id, GLenum pname, GLint *params);
+ void (QOPENGLF_APIENTRYP GetQueryiv)(GLenum target, GLenum pname, GLint *params);
+ void (QOPENGLF_APIENTRYP EndQuery)(GLenum target);
+ void (QOPENGLF_APIENTRYP BeginQuery)(GLenum target, GLuint id);
+ GLboolean (QOPENGLF_APIENTRYP IsQuery)(GLuint id);
+ void (QOPENGLF_APIENTRYP DeleteQueries)(GLsizei n, const GLuint *ids);
+ void (QOPENGLF_APIENTRYP GenQueries)(GLsizei n, GLuint *ids);
+
+ // Core in OpenGL >=3.2
+ void (QOPENGLF_APIENTRYP GetInteger64v)(GLenum pname, GLint64 *params);
+
+ // Core in OpenGL >=3.3 and provided by ARB_timer_query
+ void (QOPENGLF_APIENTRYP GetQueryObjectui64v)(GLuint id, GLenum pname, GLuint64 *params);
+ void (QOPENGLF_APIENTRYP GetQueryObjecti64v)(GLuint id, GLenum pname, GLint64 *params);
+ void (QOPENGLF_APIENTRYP QueryCounter)(GLuint id, GLenum target);
+};
+
+QT_END_NAMESPACE
+
+#endif
+
+#endif // QOPENGLQUERYHELPER_P_H
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