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Diffstat (limited to 'src/opengl/qopenglqueryhelper_p.h')
-rw-r--r-- | src/opengl/qopenglqueryhelper_p.h | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/src/opengl/qopenglqueryhelper_p.h b/src/opengl/qopenglqueryhelper_p.h new file mode 100644 index 0000000000..f3ed997f98 --- /dev/null +++ b/src/opengl/qopenglqueryhelper_p.h @@ -0,0 +1,186 @@ +/**************************************************************************** +** +** 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 |