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
|
#include <daguerre/image.hpp>
int main(int, char **) {
auto fb = daguerre::get_hilbert_framebuffer();
auto white = daguerre::to_hilbert_color({.r = 255, .g = 255, .b = 255});
auto gray = daguerre::to_hilbert_color({.r = 127, .g = 127, .b = 127});
for (unsigned y = 0; y < fb.get_height(); ++y)
for (unsigned x = 0; x < fb.get_width(); ++x) {
uint8_t v = (y / 16) % 2 == (x / 16) % 2;
fb.get(x, y) = v ? white : gray;
}
daguerre::image<daguerre::color24> img;
std::FILE *file = std::fopen("/init/burdon.ppm", "r");
assert(file != 0);
assert(daguerre::try_load_ppm(file, img));
std::fclose(file);
unsigned width =
img.get_width() < fb.get_width() ? img.get_width() : fb.get_width();
unsigned height =
img.get_height() < fb.get_height() ? img.get_height() : fb.get_height();
unsigned x_off = (fb.get_width() - width) / 2;
unsigned y_off = (fb.get_height() - height) / 2;
daguerre::copy_image(img, fb, 0, 0, x_off, y_off, width, height);
while (true) {
uint32_t kp = _syscall_read_key_packet();
if ((kp & 0x0400ff) == 0x04005a) {
for (unsigned y = 0; y < img.get_height(); ++y)
for (unsigned x = 0; x < img.get_width(); ++x) {
img.get(x, y).r = ~img.get(x, y).r;
img.get(x, y).g = ~img.get(x, y).g;
img.get(x, y).b = ~img.get(x, y).b;
}
daguerre::copy_image(img, fb, 0, 0, x_off, y_off, width, height);
}
}
return 0;
}
|