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// Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
// Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QT3DRENDER_RENDER_GENERICSTATE_H
#define QT3DRENDER_RENDER_GENERICSTATE_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <Qt3DRender/private/backendnode_p.h>
#include <Qt3DCore/private/qresourcemanager_p.h>
#include <Qt3DRender/private/statemask_p.h>
#include <Qt3DRender/private/qt3drender_global_p.h>
//#include <Qt3DRender/private/statevariant_p.h>
#include <QList>
#include <QVector3D>
#include <QOpenGLContext>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
class QRenderState;
namespace Render {
class GraphicsContext;
typedef quint64 StateMaskSet;
class Q_3DRENDERSHARED_PRIVATE_EXPORT RenderStateImpl
{
public:
virtual ~RenderStateImpl() {}
virtual StateMask mask() const = 0;
virtual bool equalTo(const RenderStateImpl &renderState) const = 0;
virtual void updateProperties(const QRenderState *);
};
template <class StateSetImpl, StateMask stateMask, typename ... T>
class GenericState : public RenderStateImpl
{
public:
GenericState *set(T... values)
{
m_values = std::tuple<T ...>(values...);
return this;
}
bool equalTo(const RenderStateImpl &renderState) const override
{
const GenericState *other = static_cast<const GenericState*>(&renderState);
return (other != nullptr && other->m_values == m_values);
}
StateMask mask() const override
{
return GenericState::type();
}
static StateMask type()
{
return stateMask;
}
std::tuple<T ...> values() const
{
return m_values;
}
protected:
std::tuple<T ...> m_values;
};
} // namespace Render
} // namespace Qt3DRender
QT_END_NAMESPACE
#endif // QT3DRENDER_RENDER_GENERICSTATE_H
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