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| |
| #include "qtechniquefilter.h" |
| #include "qtechniquefilter_p.h" |
| #include <Qt3DRender/qfilterkey.h> |
| #include <Qt3DRender/qparameter.h> |
| #include <Qt3DRender/qframegraphnodecreatedchange.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| using namespace Qt3DCore; |
| |
| namespace Qt3DRender { |
| |
| QTechniqueFilterPrivate::QTechniqueFilterPrivate() |
| : QFrameGraphNodePrivate() |
| { |
| } |
| |
| /*! |
| \class Qt3DRender::QTechniqueFilter |
| \inmodule Qt3DRender |
| \since 5.7 |
| \brief A QFrameGraphNode used to select QTechniques to use. |
| |
| A Qt3DRender::QTechniqueFilter specifies which techniques are used |
| by the FrameGraph when rendering the entities. QTechniqueFilter specifies |
| a list of Qt3DRender::QFilterKey objects and Qt3DRender::QParameter objects. |
| When QTechniqueFilter is present in the FrameGraph, only the techiques matching |
| the keys in the list are used for rendering. The parameters in the list can be used |
| to set values for shader parameters. The parameters in QTechniqueFilter are |
| overridden by parameters in QTechnique and QRenderPass. |
| */ |
| |
| /*! |
| \qmltype TechniqueFilter |
| \inqmlmodule Qt3D.Render |
| \instantiates Qt3DRender::QTechniqueFilter |
| \inherits FrameGraphNode |
| \since 5.7 |
| \brief A FrameGraphNode used to select used Techniques. |
| |
| A TechniqueFilter specifies which techniques are used by the FrameGraph |
| when rendering the entities. TechniqueFilter specifies |
| a list of FilterKey objects and Parameter objects. |
| When TechniqueFilter is present in the FrameGraph, only the techiques matching |
| the keys in list are used for rendering. The parameters in the list can be used |
| to set values for shader parameters. The parameters in TechniqueFilter are |
| overridden by parameters in Technique and RenderPass. |
| */ |
| |
| /*! |
| \qmlproperty list<FilterKey> TechniqueFilter::matchAll |
| Holds the list of filterkeys used by the TechiqueFilter |
| */ |
| |
| /*! |
| \qmlproperty list<Parameter> TechniqueFilter::parameters |
| Holds the list of parameters used by the TechiqueFilter |
| */ |
| |
| /*! |
| The constructor creates an instance with the specified \a parent. |
| */ |
| QTechniqueFilter::QTechniqueFilter(QNode *parent) |
| : QFrameGraphNode(*new QTechniqueFilterPrivate, parent) |
| { |
| } |
| |
| /*! \internal */ |
| QTechniqueFilter::~QTechniqueFilter() |
| { |
| } |
| |
| /*! \internal */ |
| QTechniqueFilter::QTechniqueFilter(QTechniqueFilterPrivate &dd, QNode *parent) |
| : QFrameGraphNode(dd, parent) |
| { |
| } |
| |
| /*! |
| Returns a vector of the current keys for the filter. |
| */ |
| QVector<QFilterKey *> QTechniqueFilter::matchAll() const |
| { |
| Q_D(const QTechniqueFilter); |
| return d->m_matchList; |
| } |
| |
| /*! |
| Add the \a filterKey to the match vector. |
| */ |
| void QTechniqueFilter::addMatch(QFilterKey *filterKey) |
| { |
| Q_ASSERT(filterKey); |
| Q_D(QTechniqueFilter); |
| if (!d->m_matchList.contains(filterKey)) { |
| d->m_matchList.append(filterKey); |
| |
| // Ensures proper bookkeeping |
| d->registerDestructionHelper(filterKey, &QTechniqueFilter::removeMatch, d->m_matchList); |
| |
| // We need to add it as a child of the current node if it has been declared inline |
| // Or not previously added as a child of the current node so that |
| // 1) The backend gets notified about it's creation |
| // 2) When the current node is destroyed, it gets destroyed as well |
| if (!filterKey->parent()) |
| filterKey->setParent(this); |
| |
| d->updateNode(filterKey, "matchAll", Qt3DCore::PropertyValueAdded); |
| } |
| } |
| |
| /*! |
| Remove the \a filterKey from the match vector. |
| */ |
| void QTechniqueFilter::removeMatch(QFilterKey *filterKey) |
| { |
| Q_ASSERT(filterKey); |
| Q_D(QTechniqueFilter); |
| d->updateNode(filterKey, "matchAll", Qt3DCore::PropertyValueRemoved); |
| d->m_matchList.removeOne(filterKey); |
| // Remove bookkeeping connection |
| d->unregisterDestructionHelper(filterKey); |
| } |
| |
| /*! |
| Add \a parameter to the vector of parameters that will be passed to the graphics pipeline. |
| */ |
| void QTechniqueFilter::addParameter(QParameter *parameter) |
| { |
| Q_ASSERT(parameter); |
| Q_D(QTechniqueFilter); |
| if (!d->m_parameters.contains(parameter)) { |
| d->m_parameters.append(parameter); |
| |
| // Ensures proper bookkeeping |
| d->registerDestructionHelper(parameter, &QTechniqueFilter::removeParameter, d->m_parameters); |
| |
| // We need to add it as a child of the current node if it has been declared inline |
| // Or not previously added as a child of the current node so that |
| // 1) The backend gets notified about it's creation |
| // 2) When the current node is destroyed, the child parameters get destroyed as well |
| if (!parameter->parent()) |
| parameter->setParent(this); |
| |
| d->updateNode(parameter, "parameter", Qt3DCore::PropertyValueAdded); |
| } |
| } |
| |
| /*! |
| Remove \a parameter from the vector of parameters passed to the graphics pipeline. |
| */ |
| void QTechniqueFilter::removeParameter(QParameter *parameter) |
| { |
| Q_ASSERT(parameter); |
| Q_D(QTechniqueFilter); |
| d->updateNode(parameter, "parameter", Qt3DCore::PropertyValueRemoved); |
| d->m_parameters.removeOne(parameter); |
| // Remove bookkeeping connection |
| d->unregisterDestructionHelper(parameter); |
| } |
| |
| /*! |
| Returns the current vector of parameters. |
| */ |
| QVector<QParameter *> QTechniqueFilter::parameters() const |
| { |
| Q_D(const QTechniqueFilter); |
| return d->m_parameters; |
| } |
| |
| Qt3DCore::QNodeCreatedChangeBasePtr QTechniqueFilter::createNodeCreationChange() const |
| { |
| auto creationChange = QFrameGraphNodeCreatedChangePtr<QTechniqueFilterData>::create(this); |
| auto &data = creationChange->data; |
| Q_D(const QTechniqueFilter); |
| data.matchIds = qIdsForNodes(d->m_matchList); |
| data.parameterIds = qIdsForNodes(d->m_parameters); |
| return creationChange; |
| } |
| |
| } // namespace Qt3DRender |
| |
| QT_END_NAMESPACE |