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#define FBGL_IMPLEMENTATION
#include "fbgl.h"
int main(void)
{
fbgl_t buffer;
if (fbgl_init("/dev/fb0", &buffer) == -1) {
fprintf(stdout, "Error: could not open framebuffer device\n");
return -1;
}
fbgl_point_t circ_center = { 960, 540 };
fbgl_set_bg(&buffer, 0x00FF0000);
uint32_t i = 0;
while (true) {
circ_center.x = 960 + 200 * cos(i * M_PI / 180);
circ_center.y = 540 + 200 * sin(i * M_PI / 180);
fbgl_draw_circle_outline(circ_center.x - 240,
circ_center.y - 240, 40, 0xFFFFFF,
&buffer);
i = (i + 1) % 360;
fbgl_draw_circle_filled(480, 540, 40, 0xFFFFFF, &buffer);
nanosleep((struct timespec[]){ { 0, 10000000 } }, NULL);
}
while (1) {
}
return 0;
}
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