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
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
#include <common.h>
#include <command.h>
#include <fs.h>
#include <linux/stat.h>
#include <errno.h>
#include <malloc.h>
#include <getopt.h>
#include <fcntl.h>
#include <fb.h>
#include <image_renderer.h>
static int do_splash(int argc, char *argv[])
{
int ret, opt, fd;
char *fbdev = "/dev/fb0";
void *fb;
struct fb_info info;
char *image_file;
int startx = -1, starty = -1;
int xres, yres;
int offscreen = 0;
void *offscreenbuf = NULL;
while((opt = getopt(argc, argv, "f:x:y:o")) > 0) {
switch(opt) {
case 'f':
fbdev = optarg;
break;
case 'x':
startx = simple_strtoul(optarg, NULL, 0);
break;
case 'y':
starty = simple_strtoul(optarg, NULL, 0);
case 'o':
offscreen = 1;
}
}
if (optind == argc) {
printf("no filename given\n");
return 1;
}
image_file = argv[optind];
fd = open(fbdev, O_RDWR);
if (fd < 0) {
perror("open");
return 1;
}
fb = memmap(fd, PROT_READ | PROT_WRITE);
if (fb == (void *)-1) {
perror("memmap");
goto failed_memmap;
}
ret = ioctl(fd, FBIOGET_SCREENINFO, &info);
if (ret) {
perror("ioctl");
goto failed_memmap;
}
xres = info.xres;
yres = info.yres;
if (offscreen) {
int fbsize;
/* Don't fail if malloc fails, just continue rendering directly
* on the framebuffer
*/
fbsize = xres * yres * (info.bits_per_pixel >> 3);
offscreenbuf = malloc(fbsize);
if (offscreenbuf)
memcpy(offscreenbuf, fb, fbsize);
}
if (image_renderer_file(&info, image_file, fb, startx, starty,
offscreenbuf) < 0)
ret = 1;
if (offscreenbuf)
free(offscreenbuf);
close(fd);
return ret;
failed_memmap:
close(fd);
return 1;
}
BAREBOX_CMD_HELP_START(splash)
BAREBOX_CMD_HELP_USAGE("splash [OPTIONS] FILE\n")
BAREBOX_CMD_HELP_SHORT("Show the bitmap FILE on the framebuffer.\n")
BAREBOX_CMD_HELP_OPT ("-f <fb>", "framebuffer device (/dev/fb0)\n")
BAREBOX_CMD_HELP_OPT ("-x <xofs>", "x offset (default center)\n")
BAREBOX_CMD_HELP_OPT ("-y <yofs>", "y offset (default center)\n")
BAREBOX_CMD_HELP_OPT ("-o", "render offscreen\n")
BAREBOX_CMD_HELP_END
/**
* @page bmp_command
This command displays a graphics in the bitmap (.bmp) format on the
framebuffer. Currently the bmp command supports images with 8 and 24 bit
color depth.
\todo What does the -o (offscreen) option do?
*/
BAREBOX_CMD_START(splash)
.cmd = do_splash,
.usage = "show a bmp image",
BAREBOX_CMD_HELP(cmd_splash_help)
BAREBOX_CMD_END
|
