gk::GLIndexBuffer Class Reference

representation d'un buffer d'indexation. More...

#include <TPBuffer.h>

Inheritance diagram for gk::GLIndexBuffer:

List of all members.

Public Member Functions
	GLIndexBuffer (const unsigned int count, const unsigned int length, const void *data, const GLenum usage=GL_STATIC_DRAW)
int	clear ()
int	update (const unsigned long int offset, const unsigned long int length, const void *data)
void *	map (const unsigned long int offset, const unsigned long int length, const GLbitfield access)
int	unmap ()
int	flush (const unsigned long int offset, const unsigned long int length)
int	bindAsFeedbackAttribute (const ProgramFeedback &attribute)
	utilise le buffer comme destination du feedback pour le varying 'index' declare dans le shader, cf glTransformFeedbackVaryings().
int	bindAsIndirect ()
	utilise le buffer comme tableau de draw calls, cf. opengl4 glDrawElementsIndirect(), glDrawArraysIndirect().
int	bindAsIndex ()
	utilise le contenu du buffer comme tableau d'index pour un affichage avec sommets partages. cf. glDrawElements().
int	createGLResource ()
	creation de la ressource openGL.
int	releaseGLResource ()
	destruction de la ressource openGL.
GLuint	name () const
	renvoie le nom openGL (l'identifiant) du buffer.
unsigned int	count () const
	renvoie le nombre de vecteurs alloues (valeur passee au contructeur, cf GLBuffer()).
Static Public Member Functions
static void	unbindIndex ()
static void	unbindVertexAttribute (const ProgramAttribute &attribute)
static void	unbindInstanceAttribute (const ProgramAttribute &attribute)
static void	unbindFeedbackAttribute (const ProgramFeedback &attribute)
static void	unbindIndirect ()
Protected Member Functions
int	clear (const int state)
	efface le contenu du buffer.
int	update (const int state, const unsigned long int offset, const unsigned long int length, const void *data)
	modifie le contenu d'une partie du buffer.
void *	map (const int state, const unsigned long int offset, const unsigned int length, const GLbitfield access)
	mappe le contenu du buffer en memoire host
int	unmap (const int state)
int	flush (const int state, const unsigned long int offset, const unsigned int length)
Protected Attributes
GLuint	m_name
GLenum	m_usage
unsigned int	m_length
unsigned int	m_count

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Detailed Description

representation d'un buffer d'indexation.

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Member Function Documentation

int gk::GLBuffer::update	(	const int	state,
		const unsigned long int	offset,
		const unsigned long int	length,
		const void *	data
	)			[inline, protected, inherited]

modifie le contenu d'une partie du buffer.

Parameters:

	offset	position du premier octet a modifier,
	length	nombre d'octets a modifier.

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

• TPBuffer.h