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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QOPENGLCONTEXT_H
#define QOPENGLCONTEXT_H
#include <QtGui/qtguiglobal.h>
#ifndef QT_NO_OPENGL
#include <QtCore/qnamespace.h>
#include <QtCore/qobject.h>
#include <QtCore/qscopedpointer.h>
#include <QtCore/qset.h>
#include <QtCore/qnativeinterface.h>
#include <QtGui/QSurfaceFormat>
#ifdef __GLEW_H__
#if defined(Q_CC_GNU)
#warning qopenglfunctions.h is not compatible with GLEW, GLEW defines will be undefined
#warning To use GLEW with Qt, do not include <qopengl.h> or <QOpenGLFunctions> after glew.h
#endif
#endif
#include <QtGui/qopengl.h>
#include <QtCore/qvariant.h>
QT_BEGIN_NAMESPACE
class QDebug;
class QOpenGLContextPrivate;
class QOpenGLContextGroupPrivate;
class QOpenGLFunctions;
class QOpenGLExtraFunctions;
class QPlatformOpenGLContext;
class QScreen;
class QSurface;
class Q_GUI_EXPORT QOpenGLContextGroup : public QObject
{
Q_OBJECT
Q_DECLARE_PRIVATE(QOpenGLContextGroup)
public:
~QOpenGLContextGroup();
QList<QOpenGLContext *> shares() const;
static QOpenGLContextGroup *currentContextGroup();
private:
QOpenGLContextGroup();
friend class QOpenGLContext;
friend class QOpenGLContextPrivate;
friend class QOpenGLContextGroupResourceBase;
friend class QOpenGLSharedResource;
friend class QOpenGLMultiGroupSharedResource;
};
class QOpenGLTextureHelper;
class Q_GUI_EXPORT QOpenGLContext : public QObject
{
Q_OBJECT
Q_DECLARE_PRIVATE(QOpenGLContext)
public:
explicit QOpenGLContext(QObject *parent = nullptr);
~QOpenGLContext();
void setFormat(const QSurfaceFormat &format);
void setShareContext(QOpenGLContext *shareContext);
void setScreen(QScreen *screen);
bool create();
bool isValid() const;
QSurfaceFormat format() const;
QOpenGLContext *shareContext() const;
QOpenGLContextGroup *shareGroup() const;
QScreen *screen() const;
GLuint defaultFramebufferObject() const;
bool makeCurrent(QSurface *surface);
void doneCurrent();
void swapBuffers(QSurface *surface);
QFunctionPointer getProcAddress(const QByteArray &procName) const;
QFunctionPointer getProcAddress(const char *procName) const;
QSurface *surface() const;
static QOpenGLContext *currentContext();
static bool areSharing(QOpenGLContext *first, QOpenGLContext *second);
QPlatformOpenGLContext *handle() const;
QPlatformOpenGLContext *shareHandle() const;
QOpenGLFunctions *functions() const;
QOpenGLExtraFunctions *extraFunctions() const;
QSet<QByteArray> extensions() const;
bool hasExtension(const QByteArray &extension) const;
enum OpenGLModuleType {
LibGL,
LibGLES
};
static OpenGLModuleType openGLModuleType();
bool isOpenGLES() const;
static bool supportsThreadedOpenGL();
static QOpenGLContext *globalShareContext();
QT_DECLARE_NATIVE_INTERFACE_ACCESSOR(QOpenGLContext)
Q_SIGNALS:
void aboutToBeDestroyed();
private:
friend class QOpenGLContextResourceBase;
friend class QOpenGLPaintDevice;
friend class QOpenGLGlyphTexture;
friend class QOpenGLTextureGlyphCache;
friend class QOpenGLEngineShaderManager;
friend class QOpenGLFramebufferObject;
friend class QOpenGLFramebufferObjectPrivate;
friend class QOpenGL2PaintEngineEx;
friend class QOpenGL2PaintEngineExPrivate;
friend class QSGDistanceFieldGlyphCache;
friend class QWidgetPrivate;
friend class QAbstractOpenGLFunctionsPrivate;
friend class QOpenGLTexturePrivate;
QOpenGLTextureHelper* textureFunctions() const;
void setTextureFunctions(QOpenGLTextureHelper* textureFuncs, std::function<void()> destroyCallback);
void destroy();
Q_PRIVATE_SLOT(d_func(), void _q_screenDestroyed(QObject *object))
};
#ifndef QT_NO_DEBUG_STREAM
Q_GUI_EXPORT QDebug operator<<(QDebug debug, const QOpenGLContext *ctx);
Q_GUI_EXPORT QDebug operator<<(QDebug debug, const QOpenGLContextGroup *cg);
#endif // !QT_NO_DEBUG_STREAM
QT_END_NAMESPACE
#include <QtGui/qopenglcontext_platform.h>
#endif // QT_NO_OPENGL
#endif // QOPENGLCONTEXT_H
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