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39
40#include "geometry_p.h"
41#include <Qt3DRender/qattribute.h>
42#include <Qt3DRender/qgeometry.h>
43#include <Qt3DRender/private/qgeometry_p.h>
44#include <Qt3DCore/qpropertyupdatedchange.h>
45
46#include <algorithm>
47
48QT_BEGIN_NAMESPACE
49
50using namespace Qt3DCore;
51
52namespace Qt3DRender {
53namespace Render {
54
55Geometry::Geometry()
56 : BackendNode(ReadWrite)
57 , m_geometryDirty(false)
58 , m_shouldNotifyMinExtentChanged(false)
59 , m_shouldNotifyMaxExtentChanged(false)
60{
61}
62
63Geometry::~Geometry()
64{
65}
66
67void Geometry::cleanup()
68{
69 QBackendNode::setEnabled(false);
70 m_attributes.clear();
71 m_geometryDirty = false;
72 m_boundingPositionAttribute = Qt3DCore::QNodeId();
73 m_min = QVector3D();
74 m_max = QVector3D();
75 m_shouldNotifyMinExtentChanged = false;
76 m_shouldNotifyMaxExtentChanged = false;
77}
78
79void Geometry::syncFromFrontEnd(const QNode *frontEnd, bool firstTime)
80{
81 BackendNode::syncFromFrontEnd(frontEnd, firstTime);
82 const QGeometry *node = qobject_cast<const QGeometry *>(object: frontEnd);
83 if (!node)
84 return;
85
86 m_geometryDirty |= firstTime;
87
88 QNodeIdVector attribs = qIdsForNodes(nodes: node->attributes());
89 std::sort(first: std::begin(cont&: attribs), last: std::end(cont&: attribs));
90 if (m_attributes != attribs) {
91 m_attributes = attribs;
92 m_geometryDirty = true;
93 }
94
95 if ((node->boundingVolumePositionAttribute() && node->boundingVolumePositionAttribute()->id() != m_boundingPositionAttribute) ||
96 // Note: doesn't set dirtyness as this parameter changing doesn't need a new VAO update.
97 (!node->boundingVolumePositionAttribute() && !m_boundingPositionAttribute.isNull())) {
98 m_boundingPositionAttribute = node->boundingVolumePositionAttribute() ? node->boundingVolumePositionAttribute()->id() : QNodeId{};
99 }
100
101 markDirty(changes: AbstractRenderer::GeometryDirty);
102}
103
104void Geometry::unsetDirty()
105{
106 m_geometryDirty = false;
107}
108
109// Called from calcboundingvolumejob (in a QtConcurrent thead (can't send
110// update changes from such a thread))
111void Geometry::updateExtent(const QVector3D &min, const QVector3D &max)
112{
113 // Send notification to frontend
114 if (m_min != min) {
115 m_min = min;
116 m_shouldNotifyMinExtentChanged = true;
117 }
118
119 if (m_max != max) {
120 m_max = max;
121 m_shouldNotifyMaxExtentChanged = true;
122 }
123}
124
125// Called from calcboundingvolumejob after all bounding volumes have been
126// updated (in an aspect thread)
127void Geometry::notifyExtentChanged()
128{
129 if (m_shouldNotifyMinExtentChanged || m_shouldNotifyMaxExtentChanged) {
130 auto change = Qt3DCore::QPropertyUpdatedChangePtr::create(arguments: peerId());
131 change->setDeliveryFlags(Qt3DCore::QSceneChange::Nodes);
132 change->setPropertyName("extent");
133 change->setValue(QVariant::fromValue(value: QPair<QVector3D, QVector3D>(m_min, m_max)));
134 notifyObservers(e: change);
135 m_shouldNotifyMinExtentChanged = false;
136 m_shouldNotifyMaxExtentChanged = false;
137 }
138}
139
140} // namespace Render
141} // namespace Qt3DRender
142
143QT_END_NAMESPACE
144

source code of qt3d/src/render/geometry/geometry.cpp