qt-everywhere-src-5.15.1/qtwebglplugin/src/plugins/platforms/webgl/qwebglwindow_p.h

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#ifndef QWEBGLWINDOW_P_H
#define QWEBGLWINDOW_P_H

#include <QtCore/qatomic.h>
#include <QtCore/qpointer.h>
#include <QtGui/qsurfaceformat.h>

#if (defined(Q_CC_MSVC) && _MSC_VER <= 1800)
// https://connect.microsoft.com/VisualStudio/feedback/details/811347/compiling-vc-12-0-with-has-exceptions-0-and-including-concrt-h-causes-a-compiler-error
_CRTIMP bool __cdecl __uncaught_exception();
#endif

#include <future>

QT_BEGIN_NAMESPACE

class QWebGLWindow;

class QWebGLWindowPrivate
{
public:
    QWebGLWindowPrivate(QWebGLWindow *p);

    bool raster = false;
    QSurfaceFormat format;

    enum Flag {
        Created = 0x01,
        HasNativeWindow = 0x02,
        IsFullScreen = 0x04
    };
    Q_DECLARE_FLAGS(Flags, Flag)
    Flags flags;

    std::promise<QMap<unsigned int, QVariant>> defaults;
    int id = -1;
    static QAtomicInt nextId;

private:
    Q_DECLARE_PUBLIC(QWebGLWindow)
    QWebGLWindow *q_ptr = nullptr;
};

QT_END_NAMESPACE

#endif // QWEBGLWINDOW_P_H