translate.h File Reference

#include <stdint.h>
#include <render/parameters.h>

Go to the source code of this file.

Data Structures
struct	render_integer_position
	this struct is a point in 3d, which has coords save as uint32_t this is the recommended type for high performance rendering, because the sh3eb-elf architecture is 32 bits More...
struct	render_floating_position
	this struct is a point in 3d, which has coords save as double it is not recommended to use it for high performances rendering, because of the sh3eb-elf architecture, which does not support natively floating calculation More...
struct	render_integer_point
	This is a point which is used for 3d translations and rendering integer mode is the best solution to increase perfs, and that's why I didn't have implemented te floating_points yet. More...

Typedefs
typedef struct render_integer_position	render_integer_position
typedef struct render_floating_position	render_floating_position
typedef struct render_integer_point	render_integer_point

Functions
void	render_translate (render_integer_point *point)
	This function rotates and applies perspective on an integer point. More...
void	render_set (const double dh, const double dv, const double roulis, const render_integer_position *camera)
	Sets up the translation matrices for a new rendering cycle There is no need to call this function if you have already called render_update() More...
double	modulo_2pi (double a)
	Sets up an angle mesure between -pi and +pi. More...
double	cos (double angle)
	Homemade cosinus implementation, which is faster than casio provided cosinus function. More...
double	sin (const double angle)
	Homemade sinus implementation, which is faster than casio provided sinus function. More...

Variables
const double	pi
const double	pi2
const double	pi_sur_2

Typedef Documentation

render_floating_position

typedef struct render_floating_position render_floating_position

Definition at line 29 of file translate.h.

render_integer_point

typedef struct render_integer_point render_integer_point

Definition at line 41 of file translate.h.

render_integer_position

typedef struct render_integer_position render_integer_position

Definition at line 17 of file translate.h.

Function Documentation

cos()

double cos

(

double

angle

)

Homemade cosinus implementation, which is faster than casio provided cosinus function.

Parameters

[in]

angle

The angle (rad)

Returns

cos angle

modulo_2pi()

double modulo_2pi

(

double

a

)

Sets up an angle mesure between -pi and +pi.

Parameters

[in]

a

the angle (rad)

Returns

angle mesure which respect the following contraint : -pi <= angle <= pi

render_set()

void render_set	(	const double	dh,
		const double	dv,
		const double	roulis,
		const render_integer_position *	camera
	)

Sets up the translation matrices for a new rendering cycle There is no need to call this function if you have already called render_update()

Parameters

[in]	dh	Camera's horizontal direction (rad)
[in]	dv	Camera's vertical direction (rad)
[in]	roulis	Optionnal rotation around the middle of the screen
[in]	camera	The camera's coordinates, as an integer position

render_translate()

void render_translate

(

render_integer_point *

point

)

This function rotates and applies perspective on an integer point.

Parameters

point

The point which needs to be translated

sin()

double sin

(

const double

angle

)

Homemade sinus implementation, which is faster than casio provided sinus function.

Parameters

[in]

angle

The angle (rad)

Returns

sin angle

Variable Documentation

pi

const double pi

mathematics constants

pi2

const double pi2

pi_sur_2

const double pi_sur_2