104 lines
2.7 KiB
C
104 lines
2.7 KiB
C
#ifndef RENDER_TRANSLATE_H
|
|
#define RENDER_TRANSLATE_H
|
|
|
|
#include <stdint.h>
|
|
#include <fxengine/render/parameters.h>
|
|
|
|
/**
|
|
* @brief 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
|
|
*/
|
|
struct render_integer_position
|
|
{
|
|
int32_t x,
|
|
y,
|
|
z;
|
|
};
|
|
typedef struct render_integer_position render_integer_position;
|
|
|
|
/**
|
|
* @brief 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
|
|
*/
|
|
struct render_floating_position
|
|
{
|
|
double x,
|
|
y,
|
|
z;
|
|
};
|
|
typedef struct render_floating_position render_floating_position;
|
|
|
|
|
|
/**
|
|
* @brief 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.
|
|
*/
|
|
struct render_integer_point
|
|
{
|
|
render_integer_position real;
|
|
render_integer_position translated;
|
|
};
|
|
|
|
typedef struct render_integer_point render_integer_point;
|
|
|
|
|
|
// applique la matrice de rotation et les deltas sur les coordonnées d'un point
|
|
|
|
/**
|
|
* @brief This function rotates and applies perspective on an integer point
|
|
*
|
|
* @param point The point which needs to be translated
|
|
*/
|
|
void render_translate(render_integer_point * point);
|
|
|
|
|
|
|
|
/**
|
|
* @brief 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()
|
|
*
|
|
* @param[in] dh Camera's horizontal direction (rad)
|
|
* @param[in] dv Camera's vertical direction (rad)
|
|
* @param[in] roulis Optionnal rotation around the middle of the screen
|
|
* @param[in] camera The camera's coordinates, as an integer position
|
|
*/
|
|
void render_set(const double dh, const double dv, const double roulis, const render_integer_position * camera);
|
|
|
|
|
|
|
|
/**
|
|
* mathematics constants
|
|
*/
|
|
extern const double pi, pi2, pi_sur_2;
|
|
|
|
|
|
/**
|
|
* @brief Sets up an angle mesure between -pi and +pi
|
|
*
|
|
* @param[in] a the angle (rad)
|
|
*
|
|
* @return angle mesure which respect the following contraint :
|
|
* -pi <= angle <= pi
|
|
*/
|
|
double modulo_2pi(double a);
|
|
|
|
/**
|
|
* @brief Homemade cosinus implementation, which is faster than casio provided cosinus function
|
|
*
|
|
* @param[in] angle The angle (rad)
|
|
*
|
|
* @return cos angle
|
|
*/
|
|
double cos(double angle);
|
|
|
|
/**
|
|
* @brief Homemade sinus implementation, which is faster than casio provided sinus function
|
|
*
|
|
* @param[in] angle The angle (rad)
|
|
*
|
|
* @return sin angle
|
|
*/
|
|
double sin(const double angle);
|
|
|
|
#endif
|