inviwo::BufferObject Class Reference

Inheritance diagram for inviwo::BufferObject:

Public Types
enum	BindingType { BindingType::Native, BindingType::ForceFloat, BindingType::ForceNormalizedFloat }

Public Member Functions
	BufferObject (size_t sizeInBytes, const DataFormatBase *format, BufferUsage usage, BufferTarget target=BufferTarget::Data)
	BufferObject (const BufferObject &rhs)
	BufferObject (BufferObject &&rhs)
BufferObject &	operator= (const BufferObject &other)
BufferObject &	operator= (BufferObject &&other)
virtual BufferObject *	clone () const
GLenum	getFormatType () const
GLenum	getTarget () const
GLuint	getId () const
GLFormats::GLFormat	getGLFormat () const
const DataFormatBase *	getDataFormat () const
void	bind () const
void	unbind () const
void	bindAndSetAttribPointer (GLuint location, BindingType bindingType=BindingType::Native) const
	bind the buffer object and set the vertex attribute pointer More...
void	setSize (GLsizeiptr sizeInBytes)
void	upload (const void *data, GLsizeiptr sizeInBytes)
void	download (void *data) const
Public Member Functions inherited from inviwo::Observable< BufferObjectObserver >
	Observable (const Observable< BufferObjectObserver > &other)
	Observable (Observable< BufferObjectObserver > &&other)
Observable< BufferObjectObserver > &	operator= (const Observable< BufferObjectObserver > &other)
Observable< BufferObjectObserver > &	operator= (Observable< BufferObjectObserver > &&other)
void	addObserver (BufferObjectObserver *observer)
void	removeObserver (BufferObjectObserver *observer)
virtual void	startBlockingNotifications () override final
virtual void	stopBlockingNotifications () override final

Additional Inherited Members
Protected Member Functions inherited from inviwo::Observable< BufferObjectObserver >
void	forEachObserver (C callback)
Protected Member Functions inherited from inviwo::ObservableInterface
void	addObservationHelper (Observer *observer)
void	removeObservationHelper (Observer *observer)

Member Enumeration Documentation

BindingType

enum inviwo::BufferObject::BindingType

strong

Type of binding when setting glVertexAttrib*Pointer.

See glVertexAttribPointer and Vertex Specification for details.

Enumerator
Native	uses glVertexAttribIPointer for integral types, glVertexAttribDPointer for double, and glVertexAttribPointer otherwise
ForceFloat	enforces the use of glVertexAttribPointer independent of the buffer type
ForceNormalizedFloat	enforces the use of glVertexAttribPointer with normalization of integral types

Member Function Documentation

bindAndSetAttribPointer()

void inviwo::BufferObject::bindAndSetAttribPointer	(	GLuint	location,
		BindingType	bindingType = BindingType::Native
	)		const

bind the buffer object and set the vertex attribute pointer

This will bind the buffer object and then set the respective glVertexAttrib*Pointer. By default, i.e. bindingType = BindingType::Native, glVertexAttribIPointer (note the 'I') is used for scalar types and glVertexAttribPointer will be used for floating point types. This behavior can be overwritten by bindingType. Then the buffer is only accessible using float in the shader.

See also

BindingType

Parameters

location	used to set the vertex attribute location
bindingType	determines which glVertexAttrib*Pointer is used

setSize()

void inviwo::BufferObject::setSize

(

GLsizeiptr

sizeInBytes

)

Set the size of the buffer in bytes. Convenience function for calling initialize(nullptr, sizeInBytes)

Parameters

sizeInBytes

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

• bufferobject.h
• bufferobject.cpp