Abstraction for OpenGL vertex buffer objects. More...

#include <InstanceBuffer.hpp>

Collaboration diagram for galaxy::graphics::InstanceBuffer:

Public Member Functions
	InstanceBuffer ()
	Constructor.

	InstanceBuffer (InstanceBuffer &&)
	Move constructor.

InstanceBuffer &	operator= (InstanceBuffer &&)
	Move assignment operator.

	~InstanceBuffer ()
	Destructor.

void	buffer (std::span< glm::mat4 > transforms)
	Create instance buffer.

void	sub_buffer (const unsigned int index, std::span< glm::mat4 > transforms)
	Sub-buffer instances.

void	clear ()
	Clear buffer data.

int	amount () const
	Get the amount of instances.

unsigned int	id () const
	Get OpenGL handle.

Private Member Functions
	InstanceBuffer (const InstanceBuffer &)=delete
	Copy constructor.

InstanceBuffer &	operator= (const InstanceBuffer &)=delete
	Copy assignment operator.

Private Attributes
unsigned int	m_id
	ID returned by OpenGL when generating buffer.

int	m_amount
	Number of instances.

Detailed Description

Abstraction for OpenGL vertex buffer objects.

Definition at line 22 of file InstanceBuffer.hpp.

Constructor & Destructor Documentation

◆ InstanceBuffer() [1/3]

galaxy::graphics::InstanceBuffer::InstanceBuffer ( )

Constructor.

Definition at line 17 of file InstanceBuffer.cpp.

◆ InstanceBuffer() [2/3]

galaxy::graphics::InstanceBuffer::InstanceBuffer ( InstanceBuffer && i )

Move constructor.

Definition at line 24 of file InstanceBuffer.cpp.

◆ ~InstanceBuffer()

galaxy::graphics::InstanceBuffer::~InstanceBuffer ( )

Destructor.

Definition at line 45 of file InstanceBuffer.cpp.

◆ InstanceBuffer() [3/3]

galaxy::graphics::InstanceBuffer::InstanceBuffer ( const InstanceBuffer & )

privatedelete

Copy constructor.

Member Function Documentation

◆ operator=() [1/2]

InstanceBuffer & galaxy::graphics::InstanceBuffer::operator= ( InstanceBuffer && i )

Move assignment operator.

Definition at line 32 of file InstanceBuffer.cpp.

◆ buffer()

void galaxy::graphics::InstanceBuffer::buffer ( std::span< glm::mat4 > transforms )

Create instance buffer.

Parameters

transforms Transform to apply to each instance.

Definition at line 53 of file InstanceBuffer.cpp.

◆ sub_buffer()

void galaxy::graphics::InstanceBuffer::sub_buffer	(	const unsigned int	index,
		std::span< glm::mat4 >	transforms )

Sub-buffer instances.

Parameters

index	Offset to start from. 0 = first element.
transforms	Transforms to upload.

Definition at line 59 of file InstanceBuffer.cpp.

◆ clear()

void galaxy::graphics::InstanceBuffer::clear ( )

Clear buffer data.

Definition at line 64 of file InstanceBuffer.cpp.

◆ amount()

int galaxy::graphics::InstanceBuffer::amount ( ) const

nodiscard

Get the amount of instances.

Returns: Integer.

Definition at line 69 of file InstanceBuffer.cpp.

Here is the caller graph for this function:

◆ id()

unsigned int galaxy::graphics::InstanceBuffer::id ( ) const

nodiscard

Get OpenGL handle.

Returns: Unsigned integer.

Definition at line 74 of file InstanceBuffer.cpp.

Here is the caller graph for this function:

◆ operator=() [2/2]

InstanceBuffer & galaxy::graphics::InstanceBuffer::operator= ( const InstanceBuffer & )

privatedelete

Copy assignment operator.

Member Data Documentation

◆ m_id

unsigned int galaxy::graphics::InstanceBuffer::m_id

private

ID returned by OpenGL when generating buffer.

Definition at line 95 of file InstanceBuffer.hpp.

◆ m_amount

int galaxy::graphics::InstanceBuffer::m_amount