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// Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QT3DRENDER_RENDER_FRAMEGRAPHNODE_H
#define QT3DRENDER_RENDER_FRAMEGRAPHNODE_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/qhandle_p.h>
#include <Qt3DCore/qnode.h>
#include <Qt3DRender/qframegraphnode.h>
#include <Qt3DRender/private/managers_p.h>
#include <Qt3DRender/private/nodemanagers_p.h>
#include <qglobal.h>
#include <QList>
// Windows had the smart idea of using a #define MemoryBarrier
// https://msdn.microsoft.com/en-us/library/windows/desktop/ms684208(v=vs.85).aspx
#if defined(Q_OS_WIN) && defined(MemoryBarrier)
#undef MemoryBarrier
#endif
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
namespace Render {
class FrameGraphManager;
class Q_3DRENDERSHARED_PRIVATE_EXPORT FrameGraphNode : public BackendNode
{
public:
FrameGraphNode();
virtual ~FrameGraphNode();
enum FrameGraphNodeType {
InvalidNodeType = 0,
CameraSelector,
LayerFilter,
RenderPassFilter,
RenderTarget,
TechniqueFilter,
Viewport,
ClearBuffers,
SortMethod,
SubtreeEnabler,
StateSet,
NoDraw,
FrustumCulling,
Lighting,
ComputeDispatch,
Surface,
RenderCapture,
BufferCapture,
MemoryBarrier,
ProximityFilter,
BlitFramebuffer,
SetFence,
WaitFence,
NoPicking,
DebugOverlay,
};
FrameGraphNodeType nodeType() const { return m_nodeType; }
void setFrameGraphManager(FrameGraphManager *manager);
FrameGraphManager *manager() const;
void setParentId(Qt3DCore::QNodeId parentId);
Qt3DCore::QNodeId parentId() const;
QList<Qt3DCore::QNodeId> childrenIds() const;
FrameGraphNode *parent() const;
QList<FrameGraphNode *> children() const;
void cleanup();
void syncFromFrontEnd(const Qt3DCore::QNode *frontEnd, bool firstTime) override;
protected:
FrameGraphNode(FrameGraphNodeType nodeType, QBackendNode::Mode mode = QBackendNode::ReadOnly);
private:
FrameGraphNodeType m_nodeType;
Qt3DCore::QNodeId m_parentId;
QList<Qt3DCore::QNodeId> m_childrenIds;
FrameGraphManager *m_manager;
friend class FrameGraphVisitor;
};
template<typename Backend, typename Frontend>
class FrameGraphNodeFunctor : public Qt3DCore::QBackendNodeMapper
{
public:
explicit FrameGraphNodeFunctor(AbstractRenderer *renderer)
: m_manager(renderer->nodeManagers()->frameGraphManager())
, m_renderer(renderer)
{
}
Qt3DCore::QBackendNode *create(Qt3DCore::QNodeId id) const override
{
return createBackendFrameGraphNode(id);
}
Qt3DCore::QBackendNode *get(Qt3DCore::QNodeId id) const override
{
return m_manager->lookupNode(id);
}
void destroy(Qt3DCore::QNodeId id) const override
{
m_manager->releaseNode(id);
}
protected:
Backend *createBackendFrameGraphNode(const Qt3DCore::QNodeId &id) const
{
if (!m_manager->containsNode(id)) {
Backend *backend = new Backend();
backend->setFrameGraphManager(m_manager);
backend->setRenderer(m_renderer);
m_manager->appendNode(id, backend);
return backend;
}
return static_cast<Backend *>(m_manager->lookupNode(id));
}
private:
FrameGraphManager *m_manager;
AbstractRenderer *m_renderer;
};
} // namespace Render
} // namespace Qt3DRender
QT_END_NAMESPACE
#endif // QT3DRENDER_RENDER_FRAMEGRAPHNODE_H
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