draw.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   draw.c                                             :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: mlegendr <mlegendr@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2015/11/24 14:48:54 by mlegendr          #+#    #+#             */
/*   Updated: 2015/11/24 14:49:42 by mlegendr         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include <mlx.h>
#include "rt.h"

void	adapt_pixel_in_image(t_win *win, int color, int x, int y)
{
	unsigned int	stock;
	unsigned char	red;
	unsigned char	green;
	unsigned char	blue;
	int				value;

	value = y * win->img.sl + x * (win->img.bpp >> 3);
	if (y < 0 || x < 0 || y >= win->height || x >= win->width)
		return ;
	stock = mlx_get_color_value(win->mlx, color);
	red = ((stock & 0xFF0000) >> 16);
	green = ((stock & 0xFF00) >> 8);
	blue = (stock & 0xFF);
	(win->img.data)[value] = blue;
	(win->img.data)[value + 1] = green;
	(win->img.data)[value + 2] = red;
}