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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_save_to_bmp.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rbousset <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/29 20:50:35 by rbousset #+# #+# */
/* Updated: 2020/02/29 20:50:37 by rbousset ### ########lyon.fr */
/* */
/* ************************************************************************** */
#include <libft.h>
#include <cub3d.h>
#include <stddef.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdint.h>
static char
*ft_set_file_name(t_map *ml)
{
char *str;
if (ft_strrchr(ml->filename, '/'))
{
if (!(str = (char*)malloc((ft_strlen(FT_BMP_SAVE_DIR) +
ft_strlen(ft_strrchr(ml->filename, '/') + 1)
+ 1) * sizeof(char))))
return (NULL);
ft_sprintf(str, "%s%s", FT_BMP_SAVE_DIR,
ft_strrchr(ml->filename, '/') + 1);
}
else
{
if (!(str = (char*)malloc((ft_strlen(FT_BMP_SAVE_DIR) +
ft_strlen(ml->filename) + 1) * sizeof(char))))
return (NULL);
ft_sprintf(str, "%s%s", FT_BMP_SAVE_DIR, ml->filename);
}
ft_memcpy(ft_strrchr(str, '.') + 1, "bmp", 3);
return (str);
}
static uint8_t
*ft_convert_image_to_bmp(t_img img, t_cub *cl)
{
uint8_t *bmp;
t_bmp_rgb px;
uint32_t y;
uint32_t x;
uint32_t i;
(void)img;
if (!(bmp = (uint8_t*)ft_calloc(3 * cl->wlist.x_size
* cl->wlist.y_size, sizeof(uint8_t))))
return (NULL);
y = cl->wlist.y_size;
i = 0;
while (--y > 0)
{
x = -1;
while (++x < cl->wlist.x_size)
{
px = ft_hex_to_rgb(*(int*)(cl->img.ptr
+ (x * 4 + (y * cl->img.sizeline))));
*(bmp + i++) = (uint8_t)px.b;
*(bmp + i++) = (uint8_t)px.g;
*(bmp + i++) = (uint8_t)px.r;
}
}
return (bmp);
}
static int8_t
ft_write_bmp(const char *fname, uint32_t h, uint32_t w, uint8_t *bmp)
{
t_bmp_file bmp_file;
t_bmp_info bmp_info;
uint32_t size;
int fd;
size = w * h * 3;
bmp_file = ft_init_bmp();
bmp_info = ft_init_bmp_info();
bmp_file.file_size = size + sizeof(t_bmp_file) + sizeof(t_bmp_info);
bmp_file.offset_data = bmp_file.file_size - size;
bmp_info.size = 40;
bmp_info.width = w;
bmp_info.height = h;
bmp_info.bit_count = 24;
bmp_info.size_image = size;
if (!(fd = open(fname, O_RDWR | O_CREAT, 0644)))
return (-1);
if (!write(fd, &bmp_file, sizeof(t_bmp_file)) ||
!write(fd, &bmp_info, sizeof(t_bmp_info)) ||
!write(fd, bmp, size))
return (-1);
close(fd);
return (0);
}
int8_t
ft_save_to_bmp(t_cub *cl)
{
uint8_t *bmp;
char *fname;
if (!(fname = ft_set_file_name(&cl->mlist)))
return (-1);
if (!(bmp = ft_convert_image_to_bmp(cl->img, cl)))
{
ft_memdel((void*)&fname);
return (-1);
}
if (ft_write_bmp(fname, cl->wlist.y_size, cl->wlist.x_size, bmp) < 0)
{
ft_memdel((void*)&bmp);
ft_memdel((void*)&fname);
return (-1);
}
ft_memdel((void*)&bmp);
ft_memdel((void*)&fname);
return (0);
}
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