lg_vbo.c File Reference

Functions
LG_VBO	LG_VBO_new (const void *vertex_data, unsigned int size)
int	LG_VBO_set_data (LG_VBO *vbo, const void *vertex_data)
void	LG_VBO_free (LG_VBO *vbo)
void	LG_VBO_bind (LG_VBO *vbo)
void	LG_VBO_unbind ()
LG_IBO	LG_IBO_new (const void *vertex_indices, unsigned int size)
int	LG_IBO_set_data (LG_IBO *ibo, const void *vertex_indices)
void	LG_IBO_free (LG_IBO *ibo)
void	LG_IBO_bind (LG_IBO *ibo)
void	LG_IBO_unbind ()
LG_VAO	LG_VAO_new ()
void	LG_VAO_free (LG_VAO *vao)
void	LG_VAO_bind (LG_VAO *vao, zboolean gl_checking)
void	LG_VAO_unbind ()

Detailed Description

 === Wrapper functions to more easily create and manage VBOs, IBOs, and VAOs ===

Function Documentation

LG_VBO_new()

LG_VBO LG_VBO_new	(	const void *	vertex_data,
		unsigned int	size
	)

Create a new VBO

Also set buffer data if vertex_data != NULL

VBO id set to LG_INVALID_BUF_OBJ_ID on error

Parameters

vertex_data	A pointer to data, may be NULL
size	Size of data

Returns

A new LG_VBO

LG_VBO_set_data()

int LG_VBO_set_data	(	LG_VBO *	vbo,
		const void *	vertex_data
	)

Set buffer data of an already created VBO

No size param

Parameters

vbo	A pointer to a LG_VBO
vertex_data	A pointer to data

Returns

LG_OK if OK

LG_VBO_free()

void LG_VBO_free

(

LG_VBO *

vbo

)

Free resources of a VBO

Parameters

vbo	A pointer to a LG_VBO

LG_VBO_bind()

void LG_VBO_bind

(

LG_VBO *

vbo

)

Bind a VBO

Parameters

vbo	A pointer to a LG_VBO

LG_VBO_unbind()

void LG_VBO_unbind

(

)

Unbind a VBO

LG_IBO_new()

LG_IBO LG_IBO_new	(	const void *	vertex_indices,
		unsigned int	size
	)

Create a new IBO

Also set buffer data if vertex_indices != NULL

IBO id set to LG_INVALID_BUF_OBJ_ID on error

Parameters

vertex_indices	A pointer to indices, may be NULL
size	Size of indices

Returns

A new LG_IBO

LG_IBO_set_data()

int LG_IBO_set_data	(	LG_IBO *	ibo,
		const void *	vertex_indices
	)

Set buffer data of an already created IBO

No size param

Parameters

ibo	A pointer to a LG_IBO
vertex_indices	A pointer to indices

Returns

LG_OK if OK

LG_IBO_free()

void LG_IBO_free

(

LG_IBO *

ibo

)

Free resources of an IBO

Parameters

ibo	A pointer to a LG_IBO

LG_IBO_bind()

void LG_IBO_bind

(

LG_IBO *

ibo

)

Bind an IBO

Parameters

vbo	A pointer to a LG_IBO

LG_IBO_unbind()

void LG_IBO_unbind

(

)

Unbind an IBO

LG_VAO_new()

LG_VAO LG_VAO_new

(

)

Create a new VAO

VAO id set to LG_INVALID_BUF_OBJ_ID on error

When first binded, will store/'push' configs done by:

• glEnableVertexAttribArray()
• glDisableVertexAttribArray()
• glVertexAttribPointer()

ie vertex attributes

Returns

A new LG_VAO

LG_VAO_free()

void LG_VAO_free

(

LG_VAO *

vao

)

Free resources of a VAO

Parameters

vao	A pointer to a LG_VAO

LG_VAO_bind()

void LG_VAO_bind	(	LG_VAO *	vao,
		zboolean	gl_checking
	)

Bind a VAO

When binded again, will restore/'pop' configs done by:

• glEnableVertexAttribArray()
• glDisableVertexAttribArray()
• glVertexAttribPointer()

ie vertex attributes

Parameters

vao	A pointer to a LG_VAO
gl_checking	Enable (TRUE) / disable (FALSE) GL checking

LG_VAO_unbind()

void LG_VAO_unbind

(

)

UnbBind a VAO