Flanterm is a fast and reasonably complete terminal emulator with support for multiple output backends. Included is a fast framebuffer backend.
To quickly set up and use a framebuffer Flanterm instance, it is possible to
use the flanterm_fb_simple_init() function as such:
#include <flanterm/flanterm.h>
#include <flanterm/backends/fb.h>
struct flanterm_context *ft_ctx = flanterm_fb_simple_init(
framebuffer_ptr, framebuffer_width, framebuffer_height, framebuffer_pitch
);Where framebuffer_{ptr,width,height,pitch} represent the corresponding info
about the framebuffer to use for this given instance.
To then print to the terminal instance, simply use the flanterm_write()
function on the given instance. For example:
#include <flanterm/flanterm.h>
const char msg[] = "Hello world\n";
flanterm_write(ft_ctx, msg, sizeof(msg));