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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* state.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/24 09:58:01 by cacharle #+# #+# */
/* Updated: 2020/02/25 08:42:51 by cacharle ### ########.fr */
/* */
/* ************************************************************************** */
#include "fractol.h"
#define PALETTE_START 0x000022
#define PALETTE_END 0xd62f2f
/* #define PALETTE_START 0x000000 */
/* #define PALETTE_END 0xffffff */
static void st_state_init_palette(t_state *state)
{
t_color tmp;
int step_r;
int step_g;
int step_b;
int i;
t_color colors[5];
colors[0].hexcode = 0x0;
colors[1].hexcode = 0xffdf00;
/* colors[2].hexcode = 0xffffff; */
/* colors[3].hexcode = 0x0000ff; */
/* colors[4].hexcode = 0x000088; */
int c1 = 0;
int c2 = 1;
int block_size = PALETTE_SIZE / 2;
i = -1;
double colorDelta = 1.0 / (2 - 1);
while (++i < PALETTE_SIZE)
{
double globalRel = (double)i / (PALETTE_SIZE - 1);
double localRel = (globalRel - c1 * colorDelta) / colorDelta;
if (i % block_size)
{
c1++;
c2++;
}
int dr = colors[c1].rgb.r - colors[c2].rgb.r;
int dg = colors[c1].rgb.g - colors[c2].rgb.g;
int db = colors[c1].rgb.b - colors[c2].rgb.b;
state->palette[i].rgb.r = (int)(colors[c1].rgb.r + localRel * dr);
state->palette[i].rgb.g = (int)(colors[c1].rgb.g + localRel * dg);
state->palette[i].rgb.b = (int)(colors[c1].rgb.b + localRel * db);
}
/* tmp.hexcode = PALETTE_START; */
/* step_r = ft_abs((PALETTE_END >> 16) - (PALETTE_START >> 16) ) / PALETTE_SIZE; */
/* step_g = ft_abs(((PALETTE_END >> 8) & 0xff) - ((PALETTE_START >> 8) & 0xff)) / PALETTE_SIZE; */
/* step_b = ft_abs((PALETTE_END & 0xff) - (PALETTE_START & 0xff) ) / PALETTE_SIZE; */
/* i = -1; */
/* while (++i < PALETTE_SIZE) */
/* { */
/* #<{(| tmp.rgb.r = (int)sqrt((double)i / PALETTE_SIZE);//tmp; |)}># */
/* state->palette[i] = tmp; */
/* tmp.rgb.r += step_r; */
/* tmp.rgb.g += step_g; */
/* tmp.rgb.b += step_b; */
/* } */
}
static int st_state_dispatch_func(t_state *state, char *fractal_name)
{
if (ft_strcmp(fractal_name, "mandelbrot") == 0)
state->func = &mandelbrot;
else if (ft_strcmp(fractal_name, "julia") == 0)
{
state->func = &julia;
state->c.r = 0.0;
state->c.i = 0.0;
return (0);
}
else if (ft_strcmp(fractal_name, "tricorn") == 0)
state->func = &tricorn;
else if (ft_strcmp(fractal_name, "burningship") == 0)
state->func = &burningship;
else
return (-1);
state->c.r = NAN;
state->c.i = NAN;
return (0);
}
int state_init(t_state *state, char *fractal_name)
{
if (st_state_dispatch_func(state, fractal_name) < 0)
return (-1);
if ((state->mlx_ptr = mlx_init()) == NULL)
return (-1);
if ((state->window_ptr = mlx_new_window(state->mlx_ptr, WINDOW_WIDTH, WINDOW_HEIGHT, WINDOW_TITLE)) == NULL)
return (state_destroy(state));
state->window.width = WINDOW_WIDTH;
state->window.height = WINDOW_HEIGHT;
if ((state->window.id = mlx_new_image(state->mlx_ptr, state->window.width, state->window.height)) == NULL)
return (state_destroy(state));
state->window.data = mlx_get_data_addr(state->window.id, &state->window.depth,
&state->window.size_line, &state->window.endian);
state->running = true;
state->center.r = 0.0;
state->center.i = 0.0;
state->plane.r = 4.0;
state->plane.i = 4.0;
state->iterations = 20;
st_state_init_palette(state);
state->updated = false;
return (0);
}
int state_destroy(t_state *state)
{
if (state == NULL)
return (-1);
if (state->mlx_ptr != NULL && state->window.id != NULL)
mlx_destroy_image(state->mlx_ptr, state->window.id);
if (state->mlx_ptr != NULL && state->window_ptr != NULL)
mlx_destroy_window(state->mlx_ptr, state->window_ptr);
return (-1);
}
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