m_vector.h File Reference

#include "main/glheader.h"

Data Structures
struct	GLvector4f
	Wrap all the information about vectors up in a struct. More...
Defines
#define	VEC_DIRTY_0   0x1
#define	VEC_DIRTY_1   0x2
#define	VEC_DIRTY_2   0x4
#define	VEC_DIRTY_3   0x8
#define	VEC_MALLOC   0x10
#define	VEC_NOT_WRITEABLE   0x40
#define	VEC_BAD_STRIDE   0x100
#define	VEC_SIZE_1   VEC_DIRTY_0
#define	VEC_SIZE_2   (VEC_DIRTY_0|VEC_DIRTY_1)
#define	VEC_SIZE_3   (VEC_DIRTY_0|VEC_DIRTY_1|VEC_DIRTY_2)
#define	VEC_SIZE_4   (VEC_DIRTY_0|VEC_DIRTY_1|VEC_DIRTY_2|VEC_DIRTY_3)
#define	VEC_ELT(v, type, i)   ( (type *) ( ((GLbyte *) ((v)->data)) + (i) * (v)->stride) )
	Given vector <v>, return a pointer (cast to <type *> to the -th element.
Functions
void	_mesa_vector4f_init (GLvector4f *v, GLbitfield flags, GLfloat(*storage)[4])
	Initialize GLvector objects.
void	_mesa_vector4f_alloc (GLvector4f *v, GLbitfield flags, GLuint count, GLuint alignment)
	Initialize GLvector objects and allocate storage.
void	_mesa_vector4f_free (GLvector4f *v)
	Vector deallocation.
void	_mesa_vector4f_print (const GLvector4f *v, const GLubyte *, GLboolean)
	For debugging.
void	_mesa_vector4f_clean_elem (GLvector4f *vec, GLuint nr, GLuint elt)
	Given a vector [count][4] of floats, set all the [][elt] values to 0 (if elt = 0, 1, 2) or 1.0 (if elt = 3).

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Define Documentation

#define VEC_BAD_STRIDE   0x100

#define VEC_DIRTY_0   0x1

#define VEC_DIRTY_1   0x2

#define VEC_DIRTY_2   0x4

#define VEC_DIRTY_3   0x8

#define VEC_ELT	(	v,
		type,
		i		)	( (type *) ( ((GLbyte *) ((v)->data)) + (i) * (v)->stride) )

Given vector <v>, return a pointer (cast to <type *> to the -th element.

End up doing a lot of slow imuls if not careful.

#define VEC_MALLOC   0x10

#define VEC_NOT_WRITEABLE   0x40

#define VEC_SIZE_1   VEC_DIRTY_0

#define VEC_SIZE_2   (VEC_DIRTY_0|VEC_DIRTY_1)

#define VEC_SIZE_3   (VEC_DIRTY_0|VEC_DIRTY_1|VEC_DIRTY_2)

#define VEC_SIZE_4   (VEC_DIRTY_0|VEC_DIRTY_1|VEC_DIRTY_2|VEC_DIRTY_3)

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Function Documentation

void _mesa_vector4f_alloc	(	GLvector4f *	v,
		GLbitfield	flags,
		GLuint	count,
		GLuint	alignment
	)

Initialize GLvector objects and allocate storage.

Parameters:

	v	the vector object
	flags	bitwise-OR of VEC_* flags
	count	number of elements to allocate in vector
	alignment	desired memory alignment for the data (in bytes)

void _mesa_vector4f_clean_elem	(	GLvector4f *	vec,
		GLuint	nr,
		GLuint	elt
	)

Given a vector [count][4] of floats, set all the [][elt] values to 0 (if elt = 0, 1, 2) or 1.0 (if elt = 3).

void _mesa_vector4f_free

(

GLvector4f *

v

)

Vector deallocation.

Free whatever memory is pointed to by the vector's storage field if the VEC_MALLOC flag is set. DO NOT free the GLvector object itself, though.

void _mesa_vector4f_init	(	GLvector4f *	v,
		GLbitfield	flags,
		GLfloat *	storage[4]
	)

Initialize GLvector objects.

Parameters:

	v	the vector object to initialize.
	flags	bitwise-OR of VEC_* flags
	storage	pointer to storage for the vector's data

void _mesa_vector4f_print	(	const GLvector4f *	v,
		const GLubyte *	,
		GLboolean
	)

For debugging.

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