OpenGLVertexBuffer< Vertex > Class Template Reference

#include <OpenGLVertexBuffer.h>

Public Member Functions
	OpenGLVertexBuffer ()=default
	~OpenGLVertexBuffer ()
	OpenGLVertexBuffer (const OpenGLVertexBuffer &)=delete
OpenGLVertexBuffer &	operator= (const OpenGLVertexBuffer &)=delete
	OpenGLVertexBuffer (OpenGLVertexBuffer &&other) noexcept
OpenGLVertexBuffer &	operator= (OpenGLVertexBuffer &&other) noexcept
void	swap (OpenGLVertexBuffer &other) noexcept
template<typename... Attrs>
void	reset (GLenum usage, Attrs... attrs)
void	reset ()
void	update (std::span< const Vertex > data)
void	bind () const
	operator bool () const
bool	operator! () const

Static Public Member Functions
static void	unbind ()

Private Member Functions
template<typename MemberType >
void	setupAttribute (GLuint location, MemberType Vertex::*ptr)

Private Attributes
GLuint	_vao = 0
GLuint	_vbo = 0
GLenum	_usage = GL_DYNAMIC_DRAW

Detailed Description

template<typename Vertex>
class OpenGLVertexBuffer< Vertex >

RAII wrapper for OpenGL VAO/VBO pair with type-safe attribute setup.

Usage:

std::vector<MyVertex> verts;
verts.emplace_back(...);
 
OpenGLVertexBuffer<MyVertex> buffer;
buffer.setup(GL_DYNAMIC_DRAW, &MyVertex::pos, &MyVertex::texuv, &MyVertex::color);
buffer.upload(verts);
buffer.bind();
glDrawArrays(GL_TRIANGLES, 0, verts.size());

Constructor & Destructor Documentation

OpenGLVertexBuffer() [1/3]

template<typename Vertex >

OpenGLVertexBuffer< Vertex >::OpenGLVertexBuffer ( )

default

~OpenGLVertexBuffer()

template<typename Vertex >

OpenGLVertexBuffer< Vertex >::~OpenGLVertexBuffer ( )

inline

OpenGLVertexBuffer() [2/3]

template<typename Vertex >

OpenGLVertexBuffer< Vertex >::OpenGLVertexBuffer ( const OpenGLVertexBuffer< Vertex > &  )

delete

OpenGLVertexBuffer() [3/3]

template<typename Vertex >

OpenGLVertexBuffer< Vertex >::OpenGLVertexBuffer ( OpenGLVertexBuffer< Vertex > &&  other )

inlinenoexcept

Member Function Documentation

bind()

template<typename Vertex >

void OpenGLVertexBuffer< Vertex >::bind ( ) const

inline

Bind the VAO for drawing.

operator bool()

template<typename Vertex >

OpenGLVertexBuffer< Vertex >::operator bool ( ) const

inline

Check if the buffer has been initialized.

operator!()

template<typename Vertex >

bool OpenGLVertexBuffer< Vertex >::operator! ( ) const

inline

operator=() [1/2]

template<typename Vertex >

OpenGLVertexBuffer & OpenGLVertexBuffer< Vertex >::operator= ( const OpenGLVertexBuffer< Vertex > &  )

delete

operator=() [2/2]

template<typename Vertex >

OpenGLVertexBuffer & OpenGLVertexBuffer< Vertex >::operator= ( OpenGLVertexBuffer< Vertex > &&  other )

inlinenoexcept

reset() [1/2]

template<typename Vertex >

void OpenGLVertexBuffer< Vertex >::reset ( )

inline

Release OpenGL resources.

reset() [2/2]

template<typename Vertex >

template<typename... Attrs>

void OpenGLVertexBuffer< Vertex >::reset ( GLenum  usage, Attrs...  attrs  )

inline

Initialize the VAO/VBO with specified attribute layout.

Parameters

usage	GL_STATIC_DRAW, GL_DYNAMIC_DRAW, etc.
attrs	Pointer-to-member for each vertex attribute (in shader location order).

setupAttribute()

template<typename Vertex >

template<typename MemberType >

void OpenGLVertexBuffer< Vertex >::setupAttribute ( GLuint  location, MemberType Vertex::*  ptr  )

inlineprivate

swap()

template<typename Vertex >

void OpenGLVertexBuffer< Vertex >::swap ( OpenGLVertexBuffer< Vertex > &  other )

inlinenoexcept

unbind()

template<typename Vertex >

static void OpenGLVertexBuffer< Vertex >::unbind ( )

inlinestatic

Unbind any VAO. Static since it doesn't depend on instance state.

update()

template<typename Vertex >

void OpenGLVertexBuffer< Vertex >::update ( std::span< const Vertex >  data )

inline

Upload vertex data to the buffer.

Member Data Documentation

_usage

template<typename Vertex >

GLenum OpenGLVertexBuffer< Vertex >::_usage = GL_DYNAMIC_DRAW

private

_vao

template<typename Vertex >

GLuint OpenGLVertexBuffer< Vertex >::_vao = 0

private

_vbo

template<typename Vertex >

GLuint OpenGLVertexBuffer< Vertex >::_vbo = 0

private

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The documentation for this class was generated from the following file:

• src/Engine/Graphics/Renderer/OpenGLVertexBuffer.h