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QBuffer Class

(Qt3DRender::QBuffer)
Header: #include <QBuffer>
qmake: QT += 3drender
Instantiated By: Buffer
Inherits: Qt3DRender::QAbstractBuffer

Public Types

enum BufferType { VertexBuffer, IndexBuffer, PixelPackBuffer, PixelUnpackBuffer }
enum UsageType { StreamDraw, StreamRead, StreamCopy, StaticDraw, ..., DynamicCopy }

Properties

Public Functions

QBuffer(BufferType ty = QBuffer::VertexBuffer, Qt3DCore::QNode *parent = Q_NULLPTR)
~QBuffer()
QBufferFunctorPtr bufferFunctor() const
bool isSync() const
void setBufferFunctor(const QBufferFunctorPtr &functor)
BufferType type() const
UsageType usage() const

Public Slots

void setSync(bool sync)
void setType(BufferType type)
void setUsage(UsageType usage)

Signals

void syncChanged(bool sync)
void typeChanged(BufferType type)
void usageChanged(UsageType usage)

Protected Functions

QBuffer(QBufferPrivate &dd, QBuffer::BufferType ty, Qt3DCore::QNode *parent = Q_NULLPTR)
void copy(const Qt3DCore::QNode *ref)
void sceneChangeEvent(const Qt3DCore::QSceneChangePtr &change)

Additional Inherited Members

Detailed Description

Member Type Documentation

enum QBuffer::BufferType

The type of the buffer.

Constant Value Description
Qt3DRender::QBuffer::VertexBuffer 0x8892 GL_ARRAY_BUFFER
Qt3DRender::QBuffer::IndexBuffer 0x8893 GL_ELEMENT_ARRAY_BUFFER
Qt3DRender::QBuffer::PixelPackBuffer 0x88EB GL_PIXEL_PACK_BUFFER
Qt3DRender::QBuffer::PixelUnpackBuffer 0x88EC GL_PIXEL_UNPACK_BUFFER

enum QBuffer::UsageType

The type of the usage.

Constant Value Description
Qt3DRender::QBuffer::StreamDraw 0x88E0 GL_STREAM_DRAW
Qt3DRender::QBuffer::StreamRead 0x88E1 GL_STREAM_READ
Qt3DRender::QBuffer::StreamCopy 0x88E2 GL_STREAM_COPY
Qt3DRender::QBuffer::StaticDraw 0x88E4 GL_STATIC_DRAW
Qt3DRender::QBuffer::StaticRead 0x88E5 GL_STATIC_READ
Qt3DRender::QBuffer::StaticCopy 0x88E6 GL_STATIC_COPY
Qt3DRender::QBuffer::DynamicDraw 0x88E8 GL_DYNAMIC_DRAW
Qt3DRender::QBuffer::DynamicRead 0x88E9 GL_DYNAMIC_READ
Qt3DRender::QBuffer::DynamicCopy 0x88EA GL_DYNAMIC_COPY

Property Documentation

sync : bool

Holds the sync flag. When sync is true, this will force data created by a Qt3DRender::QBufferFunctor to also be updated on the frontend Qt3DRender::QBuffer node. By default sync is false.

Note: : This has no effect if the buffer's data was set directly using the data property.

Access functions:

bool isSync() const
void setSync(bool sync)

Notifier signal:

void syncChanged(bool sync)

type : BufferType

Holds the buffer type.

Access functions:

BufferType type() const
void setType(BufferType type)

Notifier signal:

void typeChanged(BufferType type)

usage : UsageType

Holds the buffer usage.

Access functions:

UsageType usage() const
void setUsage(UsageType usage)

Notifier signal:

void usageChanged(UsageType usage)

Member Function Documentation

QBuffer::QBuffer(BufferType ty = QBuffer::VertexBuffer, Qt3DCore::QNode *parent = Q_NULLPTR)

Default constructs an instance of QBuffer.

[protected] QBuffer::QBuffer(QBufferPrivate &dd, QBuffer::BufferType ty, Qt3DCore::QNode *parent = Q_NULLPTR)

Copy constructor.

QBuffer::~QBuffer()

Destroys this buffer.

QBufferFunctorPtr QBuffer::bufferFunctor() const

Returns the buffer functor.

See also setBufferFunctor().

[protected] void QBuffer::copy(const Qt3DCore::QNode *ref)

[protected] void QBuffer::sceneChangeEvent(const Qt3DCore::QSceneChangePtr &change)

void QBuffer::setBufferFunctor(const QBufferFunctorPtr &functor)

Sets the buffer functor.

See also bufferFunctor().

© The Qt Company Ltd
Licensed under the GNU Free Documentation License, Version 1.3.
https://doc.qt.io/archives/qt-5.6/qt3drender-qbuffer.html