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
|
#define FBGL_IMPLEMENTATION
//#define FBGL_HIDE_CURSOR
#include "../fbgl.h"
#include <stdio.h>
#include <stddef.h>
int main()
{
printf("version %s\n", fbgl_version_info());
printf("name %s\n", fbgl_name_info());
fbgl_t buffer;
if (fbgl_init("/dev/fb0", &buffer) == -1) {
fprintf(stdout, "Error: could not open framebuffer device\n");
return -1;
}
fbgl_set_bg(&buffer, 0xFFFFFF); // Set background color to red
// Load the PSF2 font
fbgl_psf2_header_t *font = fbgl_load_psf2_font("../asset/font.psf");
if (!font) {
fprintf(stderr, "Error: failed to load PSF2 font.\n");
fbgl_destroy(&buffer);
return -1;
}
printf("Loaded PSF2 Font: %d glyphs, %dx%d px per character\n", font->numglyphs, font->width, font->height);
// Render sample text
fbgl_render_text(&buffer, buffer.width, buffer.height, 100, 100, "Hello, framebuffer!", font);
// Main loop checking for ESC key
int l = 0;
while (1) {
if (fbgl_check_esc_key()) {
fprintf(stdout, "ESC pressed\n");
break;
}
}
// Free the font memory
fbgl_free_psf2_font(font);
fbgl_destroy(&buffer);
return 0;
}
|
