patterns.h

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   patterns.h                                         :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: yde-goes <yde-goes@student.42sp.org.br>    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/05/17 15:21:56 by yde-goes          #+#    #+#             */
/*   Updated: 2023/06/16 13:40:14 by yde-goes         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
 
#ifndef PATTERNS_H
# define PATTERNS_H
 
# include "matrices.h"
 
typedef struct s_pattern    t_pattern;
typedef struct s_checker    t_checker;
 
typedef t_color             (*t_pttr_at)(t_pattern pattern,
                                                t_point world_point);
typedef t_checker           (*t_uv_map)(t_point point);
 
typedef struct s_checker
{
    double  width;
    double  height;
    t_color color_a;
    t_color color_b;
}   t_checker;
 
typedef struct s_uv_image
{
    void    *mlx_ptr;
    void    *win_ptr;
    void    *img_ptr;
    char    *addr;
    int     bpp;
    int     line_len;
    int     endian;
    int     width;
    int     height;
}   t_uv_image;
 
typedef struct s_text_map
{
    t_checker   uv_pattern;
    t_uv_map    uv_map;
    t_uv_image  *canvas;
}   t_text_map;
 
typedef struct s_pattern
{
    t_bool      has_pattern;
    t_pttr_at   pattern_at;
    t_text_map  texture_map;
    t_color     a;
    t_color     b;
    t_matrix    transform;
    t_matrix    inverse;
    t_matrix    transpose;
}   t_pattern;
 
/* ************************************************************************** */
/*                               PATTERNS.C                                   */
/* ************************************************************************** */
 
t_pattern   new_pattern(t_color a, t_color b);
 
t_color     stripe_at(t_pattern pattern, t_point world_point);
 
t_color     checkered_at(t_pattern pattern, t_point world_point);
 
t_color     bumped_at(t_pattern pattern, t_point point);
 
void        set_pattern_transform(t_pattern *pattern, t_matrix transform);
 
/* ************************************************************************** */
/*                               CHECKERS.C                                   */
/* ************************************************************************** */
 
t_checker   uv_checkers(double width, double height, t_color a, t_color b);
 
t_color     uv_pattern_at(t_checker checkers, double u, double v);
 
/* ************************************************************************** */
/*                               MAPPINGS.C                                   */
/* ************************************************************************** */
 
void        texture_map(t_pattern *pattern,
                t_checker checkers, t_uv_map uv_map);
 
t_checker   spherical_map(t_point point);
 
t_checker   cylindrical_map(t_point point);
 
t_checker   planar_map(t_point point);
 
#endif