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extern crate gl;
extern crate gl_init;
extern crate libc;
fn main() {
let window1 = gl_init::Window::new().unwrap();
let window2 = gl_init::Window::new().unwrap();
let window3 = gl_init::Window::new().unwrap();
spawn(proc() {
run(window1, (0.0, 1.0, 0.0, 1.0));
});
spawn(proc() {
run(window2, (0.0, 0.0, 1.0, 1.0));
});
spawn(proc() {
run(window3, (1.0, 0.0, 0.0, 1.0));
});
}
fn run(window: gl_init::Window, color: (f32, f32, f32, f32)) {
unsafe { window.make_current() };
gl::load_with(|symbol| window.get_proc_address(symbol));
{
let win_size = window.get_inner_size().unwrap();
gl::Viewport(0, 0, win_size.val0() as libc::c_int, win_size.val1() as libc::c_int);
}
gl::ClearColor(color.val0(), color.val1(), color.val2(), color.val3());
while !window.is_closed() {
gl::Clear(gl::COLOR_BUFFER_BIT);
window.swap_buffers();
window.wait_events().collect::<Vec<gl_init::Event>>();
}
}
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