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set.c
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set.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* set.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: bsyvasal <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/12/04 13:50:21 by bsyvasal #+# #+# */
/* Updated: 2023/12/13 16:08:28 by bsyvasal ### ########.fr */
/* */
/* ************************************************************************** */
#include "fractol.h"
static void my_mlx_pixel_put(t_fractol *f, int x, int y, int color)
{
char *dst;
dst = f->addr + (y * f->line_length + x * (f->bits_per_pixel / 8));
*(unsigned int *)dst = color;
}
static void colorize(t_fractol *f, int i, int j, int n)
{
int color;
int colorset[3];
colorset[0] = 0x0033658A;
colorset[1] = 0x0086BBD8;
colorset[2] = 0x002f4858;
if (n >= 100)
color = 0;
else
color = colorset[n % 3] - n * 3;
my_mlx_pixel_put(f, i, j, color);
}
static void mandelbrot(t_fractol *f, int i, int j)
{
int n;
double x[3];
double y[3];
double tmpx;
x[0] = (i / (double) f->width * 4 - 2) / f->zoom + f->xcenter;
y[0] = (j / (double) f->height * 4 - 2) / f->zoom + f->ycenter;
x[1] = 0;
y[1] = 0;
x[2] = 0;
y[2] = 0;
n = 0;
while (x[2] + y[2] <= 2 * 2 && n++ <= 100)
{
tmpx = x[2] - y[2] + x[0];
y[1] = 2 * x[1] * y[1] - y[0];
x[1] = tmpx;
x[2] = x[1] * x[1];
y[2] = y[1] * y[1];
}
colorize(f, i, j, n);
}
static void julia(t_fractol *f, int i, int j)
{
int n;
double x[3];
double y[3];
double tmpx;
x[0] = f->xconstant;
y[0] = f->yconstant;
x[1] = (i / (double) f->width * 4.0 - 2) / f->zoom + f->xcenter;
y[1] = (j / (double) f->height * 4.0 - 2) / f->zoom + f->ycenter;
x[2] = x[1] * x[1];
y[2] = y[1] * y[1];
n = 0;
while (x[2] + y[2] <= 4.0 && n++ <= 100)
{
tmpx = x[2] - y[2];
y[1] = 2 * x[1] * y[1] - y[0];
x[1] = tmpx + x[0];
x[2] = x[1] * x[1];
y[2] = y[1] * y[1];
}
colorize(f, i, j, n);
}
void draw(t_fractol *f)
{
int x;
int y;
void (*func)();
if (f->fractaltype == 1)
func = mandelbrot;
else if (f->fractaltype == 2)
func = julia;
mlx_clear_window(f->mlx, f->win);
x = -1;
while (++x < f->width)
{
y = -1;
while (++y < f->height)
func(f, x, y);
}
mlx_put_image_to_window(f->mlx, f->win, f->img, 0, 0);
}