-
Notifications
You must be signed in to change notification settings - Fork 0
/
screenshot.c
76 lines (69 loc) · 2.62 KB
/
screenshot.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* screenshot.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: fflores <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/11/02 17:58:10 by fflores #+# #+# */
/* Updated: 2020/11/02 17:58:12 by fflores ### ########.fr */
/* */
/* ************************************************************************** */
#include "cub3d.h"
static void create_bmp_header(t_data *data, int size, int fd)
{
unsigned char bmp_header[54];
ft_bzero(bmp_header, 54);
bmp_header[0] = (unsigned char)'B';
bmp_header[1] = (unsigned char)'M';
bmp_header[2] = (unsigned char)size;
bmp_header[3] = (unsigned char)(size >> 8);
bmp_header[4] = (unsigned char)(size >> 16);
bmp_header[5] = (unsigned char)(size >> 24);
bmp_header[10] = (unsigned char)54;
bmp_header[14] = (unsigned char)40;
bmp_header[18] = (unsigned char)data->conf.win_w;
bmp_header[19] = (unsigned char)(data->conf.win_w >> 8);
bmp_header[20] = (unsigned char)(data->conf.win_w >> 16);
bmp_header[21] = (unsigned char)(data->conf.win_w >> 24);
bmp_header[22] = (unsigned char)data->conf.win_h;
bmp_header[23] = (unsigned char)(data->conf.win_h >> 8);
bmp_header[24] = (unsigned char)(data->conf.win_h >> 16);
bmp_header[25] = (unsigned char)(data->conf.win_h >> 24);
bmp_header[26] = (unsigned char)1;
bmp_header[28] = (unsigned char)24;
write(fd, bmp_header, 54);
}
static void print_pixels(t_data *data, int fd)
{
unsigned int color;
int y;
int x;
y = data->conf.win_h - 1;
while (y >= 0)
{
x = -1;
while (++x < data->conf.win_w)
{
color = *(unsigned int *)(data->img.img_addr
+ (y * data->img.line_length
+ x * (data->img.bits_per_pixel / 8)));
write(fd, &color, 3);
}
y--;
}
}
void screen_shot(t_data *data)
{
int fd;
int size;
if (data->conf.win_w % 4)
data->conf.win_w = data->conf.win_w - (data->conf.win_w % 4);
size = data->conf.win_w * data->conf.win_h + 54;
if (!(fd = open("./screenshot.bmp", O_RDWR | O_CREAT, 0666)))
ft_put_error("Faild to screenshot", EXIT_FAILURE);
create_bmp_header(data, size, fd);
print_pixels(data, fd);
close(fd);
exit(EXIT_SUCCESS);
}