/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   mat4.h                                             :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: gbrochar <gbrochar@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2020/12/22 20:35:00 by gbrochar          #+#    #+#             */
/*   Updated: 2020/12/26 09:16:18 by gbrochar         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#ifndef MAT4_H
# define MAT4_H

# include "vec4.h"
# include "vec3.h"
# include <math.h>

typedef struct s_mat4		t_mat4;
typedef struct s_persp_tool	t_persp_tool;

struct						s_mat4
{
	float					data[16];
};

struct						s_persp_tool
{
	double					xmin;
	double					xmax;
	double					ymin;
	double					ymax;
};

t_mat4						mat4_transpose(t_mat4 m);

t_mat4						mat4_multiply(t_mat4 m, t_mat4 rhs);
t_mat4						mat4_multiply_tmp(t_mat4 m, t_mat4 rhs);

t_mat4						mat4_perspective(
	double fov, double aspect, double near, double far);
t_mat4						mat4_frustrum(
	t_persp_tool tool, double near, double far);
t_mat4						mat4_frustrum_tmp(double x, double y, t_vec4 tool);

t_mat4						mat4_lookat(t_vec3 eye, t_vec3 up, t_vec3 target);
t_mat4						mat4_lookat_make_mat(
	t_vec3 x, t_vec3 y, t_vec3 z, t_vec3 eye);
t_vec3						mat4_lookat_make_y(t_vec3 x, t_vec3 z);
t_vec3						mat4_lookat_make_x(t_vec3 z, t_vec3 up);
t_vec3						mat4_lookat_make_z(t_vec3 eye, t_vec3 target);

t_mat4						mat4_identity(void);

t_mat4						mat4_inverse(t_mat4 m);

t_mat4						mat4_rotatex(t_mat4 m, double theta);
t_mat4						mat4_rotatey(t_mat4 m, double theta);
t_mat4						mat4_rotatez(t_mat4 m, double theta);
t_mat4						mat4_rotatexyz(t_mat4 m, t_vec3 theta);

t_mat4						mat4_translate(t_mat4 m, t_vec3 t);

t_mat4						mat4_scale(t_mat4 m, t_vec3 s);

#endif