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39
40#ifndef QT3DRENDER_RENDER_BUFFER_H
41#define QT3DRENDER_RENDER_BUFFER_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists for the convenience
48// of other Qt classes. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtCore>
55#include <Qt3DRender/private/backendnode_p.h>
56#include <Qt3DRender/qbuffer.h>
57#include <Qt3DRender/qbufferdatagenerator.h>
58
59QT_BEGIN_NAMESPACE
60
61namespace Qt3DRender {
62
63struct QBufferUpdate;
64
65namespace Render {
66
67class BufferManager;
68
69class Q_AUTOTEST_EXPORT Buffer : public BackendNode
70{
71public:
72 Buffer();
73 ~Buffer();
74 void cleanup();
75
76 void sceneChangeEvent(const Qt3DCore::QSceneChangePtr &e) override;
77
78 void setManager(BufferManager *manager);
79 void executeFunctor();
80 void updateDataFromGPUToCPU(QByteArray data);
81 inline QBuffer::UsageType usage() const { return m_usage; }
82 inline QByteArray data() const { return m_data; }
83 inline QVector<Qt3DRender::QBufferUpdate> &pendingBufferUpdates() { return m_bufferUpdates; }
84 inline bool isDirty() const { return m_bufferDirty; }
85 inline QBufferDataGeneratorPtr dataGenerator() const { return m_functor; }
86 inline bool isSyncData() const { return m_syncData; }
87 inline QBuffer::AccessType access() const { return m_access; }
88 void unsetDirty();
89
90private:
91 void initializeFromPeer(const Qt3DCore::QNodeCreatedChangeBasePtr &change) final;
92 void forceDataUpload();
93
94 QBuffer::UsageType m_usage;
95 QByteArray m_data;
96 QVector<Qt3DRender::QBufferUpdate> m_bufferUpdates;
97 bool m_bufferDirty;
98 bool m_syncData;
99 QBuffer::AccessType m_access;
100 QBufferDataGeneratorPtr m_functor;
101 BufferManager *m_manager;
102};
103
104class BufferFunctor : public Qt3DCore::QBackendNodeMapper
105{
106public:
107 explicit BufferFunctor(AbstractRenderer *renderer, BufferManager *manager);
108 Qt3DCore::QBackendNode *create(const Qt3DCore::QNodeCreatedChangeBasePtr &change) const override;
109 Qt3DCore::QBackendNode *get(Qt3DCore::QNodeId id) const override;
110 void destroy(Qt3DCore::QNodeId id) const override;
111private:
112 BufferManager *m_manager;
113 AbstractRenderer *m_renderer;
114};
115
116} // namespace Render
117
118} // namespace Qt3DRender
119
120QT_END_NAMESPACE
121
122#endif // QT3DRENDER_RENDER_BUFFER_H
123