Jo Engine Types. More...

Data Structures
struct	jo_pos2D
	2D position More...

struct	jo_pos2D_fixed
	2D position using fixed number More...

struct	jo_pos3D
	3D position More...

struct	jo_pos3Df
	3D position using floating numbers More...

struct	jo_pos3D_fixed
	3D position using fixed numbers More...

struct	jo_rot3D
	3D rotation angles More...

struct	jo_rot3Df
	3D rotation angles More...

struct	jo_2d_object_attributes
	Object for 2D manipulation (storyboard) using fixed number. More...

struct	jo_3d_object_attributes
	Object for 3D manipulation (storyboard) using fixed number. More...

struct	jo_vectorf
	Vector for 3D computation using floating numbers. More...

struct	jo_vector
	Vector for 3D computation using integer. More...

struct	jo_vector_fixed
	Vector for 3D computation using fixed number. More...

struct	jo_vector2_fixed
	Vector for 2D computation using fixed number. More...

struct	jo_vector4_fixed
	Vector4 for 3D computation using fixed number. More...

union	jo_matrixf
	4x4 MATRIX for 3D computation using floating numbers More...

union	jo_matrix
	4x4 MATRIX for 3D computation using fixed number More...

struct	__jo_size
	Size struct. More...

struct	jo_texture_definition
	Texture definition. More...

struct	jo_picture_definition
	Picture definition. More...

struct	jo_img
	15 bits image struct More...

struct	jo_img_8bits
	8 bits image struct More...

struct	jo_raw_img
	Raw image struct. More...

struct	jo_palette
	Palette contents struct. More...

struct	jo_tile
	Struct of one tile (pos and size) More...

struct	jo_sprite_attributes
	Sprite attributes. More...

union	jo_IEEE754
	Float IEEE 754 format. More...

struct	jo_file
	File definition. More...

struct	jo_matrixf.__unnamed__

struct	jo_matrix.__unnamed__

struct	jo_IEEE754.field

Macros
#define	__jo_force_inline
	force inline attribute (and prevent Doxygen prototype parsing bug) More...

Typedefs
typedef unsigned short	jo_color
	15 bits color type More...

typedef int	jo_fixed
	Fixed point Q16.16 number. More...

typedef struct __jo_size	jo_size
	Size struct. More...

Enumerations
enum	jo_8_directions { NONE, LEFT, RIGHT, UP, DOWN, UP_LEFT, UP_RIGHT, DOWN_LEFT, DOWN_RIGHT }
	8 directions definition More...

enum	jo_scroll_screen { JO_NBG0_SCREEN, JO_NBG1_SCREEN, JO_NBG2_SCREEN, JO_NBG3_SCREEN, JO_RBG0_SCREEN, JO_BACK_SCREEN, JO_SPRITE_SCREEN, JO_VDP2_3D_PLANE_SCREEN, JO_LNCL_SCREEN, JO_ALL_SCROLL_SCREEN }
	Sega Saturn Scroll Screen Ids. More...

Detailed Description

Jo Engine Types.

Author: Johannes Fetz

Bug:: No known bugs.

Data Structure Documentation

◆ jo_pos2D

struct jo_pos2D

2D position

Data Fields
int	x
int	y

◆ jo_pos2D_fixed

struct jo_pos2D_fixed

2D position using fixed number

Data Fields
jo_fixed	x
jo_fixed	y

◆ jo_pos3D

struct jo_pos3D

3D position

Remarks: Inherits from jo_pos2D (cast friendly)

Data Fields
int	x
int	y
int	z

◆ jo_pos3Df

struct jo_pos3Df

3D position using floating numbers

Data Fields
float	x
float	y
float	z

◆ jo_pos3D_fixed

struct jo_pos3D_fixed

3D position using fixed numbers

Data Fields
jo_fixed	x
jo_fixed	y
jo_fixed	z

◆ jo_rot3D

struct jo_rot3D

3D rotation angles

Data Fields
int	rx
int	ry
int	rz

◆ jo_rot3Df

struct jo_rot3Df

3D rotation angles

Data Fields
float	rx
float	ry
float	rz

◆ jo_2d_object_attributes

struct jo_2d_object_attributes

Object for 2D manipulation (storyboard) using fixed number.

Remarks: Inherits from jo_pos3D (cast friendly)

Data Fields
	jo_pos3D
short	rz

◆ jo_3d_object_attributes

struct jo_3d_object_attributes

Object for 3D manipulation (storyboard) using fixed number.

Remarks: Inherits from jo_2d_object_attributes (cast friendly)

Data Fields
	jo_2d_object_attributes
short	rx
short	ry

◆ jo_vectorf

struct jo_vectorf

Vector for 3D computation using floating numbers.

Data Fields
float	x
float	y
float	z

◆ jo_vector

struct jo_vector

Vector for 3D computation using integer.

Remarks: Inherits from jo_pos3D (cast friendly)

Data Fields
	jo_pos3D

◆ jo_vector_fixed

struct jo_vector_fixed

Vector for 3D computation using fixed number.

Remarks: Inherits from jo_pos3D_fixed (cast friendly)

Data Fields
	jo_pos3D_fixed

◆ jo_vector2_fixed

struct jo_vector2_fixed

Vector for 2D computation using fixed number.

Data Fields
jo_fixed	x
jo_fixed	y

◆ jo_vector4_fixed

struct jo_vector4_fixed

Vector4 for 3D computation using fixed number.

Remarks: Inherits from jo_pos3D_fixed (cast friendly)

Data Fields
	jo_pos3D_fixed
jo_fixed	w

◆ jo_matrixf

union jo_matrixf

4x4 MATRIX for 3D computation using floating numbers

Data Fields
struct jo_matrixf	__unnamed__
float	m[4][4]
float	table[16]

◆ jo_matrix

union jo_matrix

4x4 MATRIX for 3D computation using fixed number

Data Fields
struct jo_matrix	__unnamed__
jo_fixed	m[4][4]
jo_fixed	table[16]

◆ __jo_size

struct __jo_size

Size struct.

Data Fields
unsigned short	height
unsigned short	width

◆ jo_texture_definition

struct jo_texture_definition

Texture definition.

Remarks: Inherits from jo_size (cast friendly)

Data Fields
unsigned short	adr
unsigned short	height
unsigned short	size
unsigned short	width

◆ jo_picture_definition

struct jo_picture_definition

Picture definition.

Data Fields
unsigned short	color_mode
void *	data
unsigned short	index

◆ jo_img

struct jo_img

15 bits image struct

Data Fields
jo_color *	data
unsigned short	height
unsigned short	width

◆ jo_img_8bits

struct jo_img_8bits

8 bits image struct

Data Fields
unsigned char *	data
unsigned short	height
unsigned short	width

◆ jo_raw_img

struct jo_raw_img

Raw image struct.

Data Fields
void *	data
unsigned short	height
unsigned short	width

◆ jo_palette

struct jo_palette

Palette contents struct.

Data Fields
jo_color *	data
int	id

◆ jo_tile

struct jo_tile

Struct of one tile (pos and size)

Data Fields
unsigned short	height
unsigned short	width
int	x
int	y

◆ jo_sprite_attributes

struct jo_sprite_attributes

Sprite attributes.

Data Fields
unsigned int	clipping
unsigned int	color_table_index
unsigned short	direction
unsigned short	effect
jo_fixed	fixed_scale_x
jo_fixed	fixed_scale_y
unsigned int	gouraud_shading_index

◆ jo_IEEE754

union jo_IEEE754

Float IEEE 754 format.

Data Fields
float	f
struct jo_IEEE754	field

◆ jo_file

struct jo_file

File definition.

Data Fields
void *	handle
int	id
int	read
char *	read_buffer
int	read_index
int	size

◆ jo_matrixf.unnamed

struct jo_matrixf.__unnamed__

Data Fields
float	m00
float	m01
float	m02
float	m03
float	m10
float	m11
float	m12
float	m13
float	m20
float	m21
float	m22
float	m23
float	m30
float	m31
float	m32
float	m33

◆ jo_matrix.unnamed

struct jo_matrix.__unnamed__

Data Fields
jo_fixed	m00
jo_fixed	m01
jo_fixed	m02
jo_fixed	m03
jo_fixed	m10
jo_fixed	m11
jo_fixed	m12
jo_fixed	m13
jo_fixed	m20
jo_fixed	m21
jo_fixed	m22
jo_fixed	m23
jo_fixed	m30
jo_fixed	m31
jo_fixed	m32
jo_fixed	m33

◆ jo_IEEE754.field

struct jo_IEEE754.field

Data Fields
unsigned int	exponent: 8
unsigned int	mantissa: 23
unsigned int	sign: 1

Macro Definition Documentation

◆ __jo_force_inline

#define __jo_force_inline

force inline attribute (and prevent Doxygen prototype parsing bug)

Typedef Documentation

◆ jo_color

typedef unsigned short jo_color

15 bits color type

◆ jo_fixed

typedef int jo_fixed

Fixed point Q16.16 number.

Remarks: SGL compatible (FIXED); Integer part is located in the upper 16 bits and a decimal part in the lower 16 bits; Valid range is -32767.99998 to 32767.99998

◆ jo_size

typedef struct __jo_size jo_size