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...

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

Typedefs
typedef unsigned short	jo_color
	15 bits color type
typedef int	jo_fixed
	Fixed point Q16.16 number.
typedef short	jo_angle
	Angle.
typedef struct __jo_size	jo_size
	Size struct.

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_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	field

◆ jo_file

struct jo_file

File definition.

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

Macro Definition Documentation

◆ __jo_force_inline

#define __jo_force_inline

force inline attribute (and prevent Doxygen prototype parsing bug)

Typedef Documentation

◆ jo_angle

typedef short jo_angle

Angle.

Remarks: 0x10000 = 360 degrees (0x4000 = 90 degrees); Use jo_DEGtoANG() or JO_DEG_TO_ANGLE() to convert a degree

◆ jo_color

typedef unsigned short jo_color

15 bits color type

◆ jo_fixed

typedef int jo_fixed

Fixed point Q16.16 number.

Remarks: 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