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ft_render.c
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ft_render.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_render.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: gusgonza <gusgonza@student.42barcel> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/10/01 16:22:09 by gusgonza #+# #+# */
/* Updated: 2024/10/01 16:22:12 by gusgonza ### ########.fr */
/* */
/* ************************************************************************** */
#include "fractol.h"
static void my_pixel_put(int x, int y, t_img *img, int color)
{
int offset;
offset = (y * img->line_len) + (x * (img->bits_per_pixel / 8));
*(unsigned int *)(img->addr + offset) = color;
}
static void mandel_or_julia(t_complex *z, t_complex *c, t_fractal *fractal)
{
if (!ft_strncmp(fractal->name, "julia", 6))
{
c->re = fractal->julia_x;
c->im = fractal->julia_y;
}
else
{
c->re = z->re;
c->im = z->im;
}
}
static void handle_pixel(int x, int y, t_fractal *fractal)
{
t_complex z;
t_complex c;
int i;
int color;
i = 0;
z.re = (mapscale(x, -2, +2, WIDTH) * fractal->zoom) + fractal->x_shift;
z.im = (mapscale(y, +2, -2, HEIGHT) * fractal->zoom) + fractal->y_shift;
mandel_or_julia(&z, &c, fractal);
while (i < fractal->iter_def)
{
z = sum_complex(sqr_complex(z), c);
if ((z.re * z.re + z.im * z.im) > fractal->escape_val)
{
color = mapscale(i, BLACK, WHITE, fractal->iter_def);
my_pixel_put(x, y, &fractal->img, color);
return ;
}
i++;
}
my_pixel_put(x, y, &fractal->img, WHITE);
}
void fractal_render(t_fractal *fractal)
{
int x;
int y;
y = 0;
while (y < HEIGHT)
{
x = 0;
while (x < WIDTH)
{
handle_pixel(x, y, fractal);
x++;
}
y++;
}
mlx_put_image_to_window(fractal->mlx_connection, fractal->mlx_window,
fractal->img.img_ptr, 0, 0);
}