1 | // Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB). |
2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
3 | |
4 | #include "updateworldtransformjob_p.h" |
5 | |
6 | #include <Qt3DCore/qtransform.h> |
7 | #include <Qt3DCore/private/qtransform_p.h> |
8 | #include <Qt3DCore/private/qaspectmanager_p.h> |
9 | #include <Qt3DRender/private/entity_p.h> |
10 | #include <Qt3DRender/private/transform_p.h> |
11 | #include <Qt3DRender/private/renderlogging_p.h> |
12 | #include <Qt3DRender/private/job_common_p.h> |
13 | #include <Qt3DRender/private/managers_p.h> |
14 | #include <Qt3DRender/private/nodemanagers_p.h> |
15 | |
16 | #include <QThread> |
17 | |
18 | QT_BEGIN_NAMESPACE |
19 | |
20 | namespace Qt3DRender { |
21 | namespace Render { |
22 | |
23 | namespace { |
24 | |
25 | struct TransformUpdate |
26 | { |
27 | Qt3DCore::QNodeId peerId; |
28 | QMatrix4x4 worldTransformMatrix; |
29 | }; |
30 | |
31 | void updateWorldTransformAndBounds(NodeManagers *manager, Entity *node, const Matrix4x4 &parentTransform, QList<TransformUpdate> &updatedTransforms) |
32 | { |
33 | if (!node->isEnabled()) |
34 | return; |
35 | |
36 | Matrix4x4 worldTransform(parentTransform); |
37 | Transform *nodeTransform = node->renderComponent<Transform>(); |
38 | |
39 | const bool hasTransformComponent = nodeTransform != nullptr && nodeTransform->isEnabled(); |
40 | if (hasTransformComponent) |
41 | worldTransform = worldTransform * nodeTransform->transformMatrix(); |
42 | |
43 | if (*(node->worldTransform()) != worldTransform) { |
44 | *(node->worldTransform()) = worldTransform; |
45 | if (hasTransformComponent) |
46 | updatedTransforms.push_back(t: {.peerId: nodeTransform->peerId(), .worldTransformMatrix: convertToQMatrix4x4(v: worldTransform)}); |
47 | } |
48 | |
49 | const auto &childrenHandles = node->childrenHandles(); |
50 | for (const HEntity &handle : childrenHandles) { |
51 | Entity *child = manager->renderNodesManager()->data(handle); |
52 | if (child) |
53 | updateWorldTransformAndBounds(manager, node: child, parentTransform: worldTransform, updatedTransforms); |
54 | } |
55 | } |
56 | |
57 | } |
58 | |
59 | class Q_3DRENDERSHARED_PRIVATE_EXPORT UpdateWorldTransformJobPrivate : public Qt3DCore::QAspectJobPrivate |
60 | { |
61 | public: |
62 | UpdateWorldTransformJobPrivate() {} |
63 | ~UpdateWorldTransformJobPrivate() override {} |
64 | |
65 | void postFrame(Qt3DCore::QAspectManager *manager) override; |
66 | |
67 | QList<TransformUpdate> m_updatedTransforms; |
68 | }; |
69 | |
70 | UpdateWorldTransformJob::UpdateWorldTransformJob() |
71 | : Qt3DCore::QAspectJob(*new UpdateWorldTransformJobPrivate()) |
72 | , m_node(nullptr) |
73 | , m_manager(nullptr) |
74 | { |
75 | SET_JOB_RUN_STAT_TYPE(this, JobTypes::UpdateTransform, 0) |
76 | } |
77 | |
78 | void UpdateWorldTransformJob::setRoot(Entity *root) |
79 | { |
80 | m_node = root; |
81 | } |
82 | |
83 | void UpdateWorldTransformJob::setManagers(NodeManagers *manager) |
84 | { |
85 | m_manager = manager; |
86 | } |
87 | |
88 | void UpdateWorldTransformJob::run() |
89 | { |
90 | // Iterate over each level of hierarchy in our scene |
91 | // and update each node's world transform from its |
92 | // local transform and its parent's world transform |
93 | |
94 | // TODO: Parallelise this on each level using a parallel_for |
95 | // implementation. |
96 | |
97 | Q_D(UpdateWorldTransformJob); |
98 | qCDebug(Jobs) << "Entering" << Q_FUNC_INFO << QThread::currentThread(); |
99 | |
100 | Matrix4x4 parentTransform; |
101 | Entity *parent = m_node->parent(); |
102 | if (parent != nullptr) |
103 | parentTransform = *(parent->worldTransform()); |
104 | updateWorldTransformAndBounds(manager: m_manager, node: m_node, parentTransform, updatedTransforms&: d->m_updatedTransforms); |
105 | |
106 | qCDebug(Jobs) << "Exiting" << Q_FUNC_INFO << QThread::currentThread(); |
107 | } |
108 | |
109 | void UpdateWorldTransformJobPrivate::postFrame(Qt3DCore::QAspectManager *manager) |
110 | { |
111 | const QList<TransformUpdate> updatedTransforms = Qt3DCore::moveAndClear(data&: m_updatedTransforms); |
112 | for (const TransformUpdate &t : updatedTransforms) { |
113 | Qt3DCore::QTransform *node = |
114 | qobject_cast<Qt3DCore::QTransform *>(object: manager->lookupNode(id: t.peerId)); |
115 | if (!node) |
116 | continue; |
117 | Qt3DCore::QTransformPrivate *dNode = |
118 | static_cast<Qt3DCore::QTransformPrivate *>(Qt3DCore::QNodePrivate::get(q: node)); |
119 | dNode->setWorldMatrix(t.worldTransformMatrix); |
120 | } |
121 | } |
122 | |
123 | } // namespace Render |
124 | } // namespace Qt3DRender |
125 | |
126 | QT_END_NAMESPACE |
127 | |