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/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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.LGPLv3 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.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 later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QT3D_RENDER_FRAMEGRAPHNODE_H
#define QT3D_RENDER_FRAMEGRAPHNODE_H
#include <Qt3DCore/qhandle.h>
#include <Qt3DCore/qnode.h>
#include <Qt3DCore/qbackendnode.h>
#include <Qt3DRenderer/qframegraphnode.h>
#include <Qt3DRenderer/private/managers_p.h>
#include <qglobal.h>
#include <QVector>
QT_BEGIN_NAMESPACE
namespace Qt3D {
namespace Render {
class FrameGraphNode : public QBackendNode
{
public:
FrameGraphNode();
virtual ~FrameGraphNode();
enum FrameGraphNodeType {
InvalidNodeType = 0,
CameraSelector,
LayerFilter,
RenderPassFilter,
RenderTarget,
TechniqueFilter,
Viewport,
ClearBuffer,
SortMethod,
SubtreeSelector,
StateSet
};
FrameGraphNodeType nodeType() const { return m_nodeType; }
void setEnabled(bool enabled) { m_enabled = enabled; }
inline bool isEnabled() const { return m_enabled; }
void setFrameGraphManager(FrameGraphManager *manager);
void setHandle(HFrameGraphNode handle);
void setParentHandle(HFrameGraphNode parentHandle);
void appendChildHandle(HFrameGraphNode childHandle);
void removeChildHandle(HFrameGraphNode childHandle);
HFrameGraphNode handle() const;
HFrameGraphNode parentHandle() const;
QList<HFrameGraphNode> childrenHandles() const;
FrameGraphNode *parent() const;
QList<FrameGraphNode *> children() const;
protected:
FrameGraphNode(FrameGraphNodeType nodeType);
private:
FrameGraphNodeType m_nodeType;
bool m_enabled;
HFrameGraphNode m_handle;
HFrameGraphNode m_parentHandle;
QList<HFrameGraphNode> m_childrenHandles;
FrameGraphManager *m_manager;
friend class FrameGraphVisitor;
};
template<typename Backend, typename Frontend>
class FrameGraphNodeFunctor : public QBackendNodeFunctor
{
public:
explicit FrameGraphNodeFunctor(FrameGraphManager *manager)
: m_manager(manager)
{
}
QBackendNode *create(QNode *frontend, const QBackendNodeFactory *factory) const Q_DECL_OVERRIDE
{
return createBackendFrameGraphNode(frontend, factory);
}
QBackendNode *get(const QNodeId &id) const Q_DECL_OVERRIDE
{
FrameGraphNode **node = m_manager->lookupResource(id);
if (node != Q_NULLPTR)
return *node;
return Q_NULLPTR;
}
void destroy(const QNodeId &id) const Q_DECL_OVERRIDE
{
m_manager->releaseResource(id);
}
protected:
Backend *createBackendFrameGraphNode(QNode *n, const QBackendNodeFactory *factory) const
{
Frontend *f = qobject_cast<Frontend *>(n);
if (f != Q_NULLPTR) {
HFrameGraphNode handle = m_manager->lookupHandle(n->id());
if (handle.isNull()) {
handle = m_manager->getOrAcquireHandle(n->id());
Backend *backend = new Backend();
*m_manager->data(handle) = backend;
backend->setFactory(factory);
backend->setFrameGraphManager(m_manager);
backend->setHandle(handle);
backend->setPeer(f);
if (qobject_cast<QFrameGraphNode *>(n->parentNode()))
backend->setParentHandle(m_manager->lookupHandle(n->parentNode()->id()));
return backend;
}
return static_cast<Backend *>(*m_manager->data(handle));
}
return Q_NULLPTR;
}
private:
FrameGraphManager *m_manager;
};
class FrameGraphComponentFunctor : public QBackendNodeFunctor
{
public:
explicit FrameGraphComponentFunctor(Renderer *renderer);
QBackendNode *create(QNode *frontend, const QBackendNodeFactory *factory) const Q_DECL_OVERRIDE;
QBackendNode *get(const QNodeId &id) const Q_DECL_OVERRIDE;
void destroy(const QNodeId &id) const Q_DECL_OVERRIDE;
private:
Renderer *m_renderer;
};
} // namespace Render
} // namespace Qt3D
QT_END_NAMESPACE
#endif // QT3D_RENDER_FRAMEGRAPHNODE_H
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