| 1 | // Copyright (C) 2020 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 | #ifndef QT3DCORE_CALCBOUNDINGVOLUMEJOB_H |
| 5 | #define QT3DCORE_CALCBOUNDINGVOLUMEJOB_H |
| 6 | |
| 7 | // |
| 8 | // W A R N I N G |
| 9 | // ------------- |
| 10 | // |
| 11 | // This file is not part of the Qt API. It exists purely as an |
| 12 | // implementation detail. This header file may change from version to |
| 13 | // version without notice, or even be removed. |
| 14 | // |
| 15 | // We mean it. |
| 16 | // |
| 17 | |
| 18 | #include <Qt3DCore/qaspectjob.h> |
| 19 | #include <Qt3DCore/private/qt3dcore_global_p.h> |
| 20 | |
| 21 | #include <QtCore/QSharedPointer> |
| 22 | #include <QtGui/qvector3d.h> |
| 23 | |
| 24 | QT_BEGIN_NAMESPACE |
| 25 | |
| 26 | namespace Qt3DCore { |
| 27 | |
| 28 | class QCoreAspect; |
| 29 | class CalculateBoundingVolumeJobPrivate; |
| 30 | class QEntity; |
| 31 | class QAttribute; |
| 32 | class QBoundingVolume; |
| 33 | class QGeometryView; |
| 34 | |
| 35 | struct Q_3DCORE_PRIVATE_EXPORT BoundingVolumeComputeResult { |
| 36 | QEntity *entity = nullptr; |
| 37 | QBoundingVolume *provider = nullptr; |
| 38 | QAttribute *positionAttribute = nullptr; |
| 39 | QAttribute *indexAttribute = nullptr; |
| 40 | QVector3D m_min; |
| 41 | QVector3D m_max; |
| 42 | QVector3D m_center; |
| 43 | float m_radius = -1.f; |
| 44 | |
| 45 | bool valid() const { return m_radius >= 0.f; } |
| 46 | }; |
| 47 | |
| 48 | struct Q_3DCORE_PRIVATE_EXPORT BoundingVolumeComputeData { |
| 49 | QEntity *entity = nullptr; |
| 50 | QBoundingVolume *provider = nullptr; |
| 51 | QAttribute *positionAttribute = nullptr; |
| 52 | QAttribute *indexAttribute = nullptr; |
| 53 | int vertexCount = 0; |
| 54 | |
| 55 | static BoundingVolumeComputeData fromView(QGeometryView *view); |
| 56 | |
| 57 | bool valid() const { return positionAttribute != nullptr; } |
| 58 | BoundingVolumeComputeResult compute() const; |
| 59 | }; |
| 60 | |
| 61 | class Q_3DCORE_PRIVATE_EXPORT BoundingVolumeJobProcessor |
| 62 | { |
| 63 | public: |
| 64 | virtual ~BoundingVolumeJobProcessor() { } |
| 65 | |
| 66 | virtual void process(const BoundingVolumeComputeResult &result, bool computedResult) = 0; |
| 67 | }; |
| 68 | |
| 69 | class Q_3DCORE_PRIVATE_EXPORT CalculateBoundingVolumeJob : public Qt3DCore::QAspectJob |
| 70 | { |
| 71 | public: |
| 72 | explicit CalculateBoundingVolumeJob(QCoreAspect *aspect); |
| 73 | |
| 74 | void setRoot(QEntity *root) { m_root = root; } |
| 75 | bool isRequired() override; |
| 76 | void run() override; |
| 77 | void postFrame(QAspectEngine *aspectEngine) override; |
| 78 | |
| 79 | void addWatcher(QWeakPointer<BoundingVolumeJobProcessor> watcher); |
| 80 | void removeWatcher(QWeakPointer<BoundingVolumeJobProcessor> watcher); |
| 81 | |
| 82 | private: |
| 83 | Q_DECLARE_PRIVATE(CalculateBoundingVolumeJob) |
| 84 | QCoreAspect *m_aspect; |
| 85 | QEntity *m_root; |
| 86 | std::vector<BoundingVolumeComputeResult> m_results; |
| 87 | std::vector<QWeakPointer<BoundingVolumeJobProcessor>> m_watchers; |
| 88 | }; |
| 89 | |
| 90 | typedef QSharedPointer<CalculateBoundingVolumeJob> CalculateBoundingVolumeJobPtr; |
| 91 | |
| 92 | } // namespace Qt3DCore |
| 93 | |
| 94 | QT_END_NAMESPACE |
| 95 | |
| 96 | #endif // QT3DCORE_CALCBOUNDINGVOLUMEJOB_H |
| 97 |