Show puffin profiler flamegraph in-game using egui

puffin is an instrumentation profiler where you opt-in to profile parts of your code:

fn my_function() {
    puffin::profile_function!();
    if ... {
        puffin::profile_scope!("load_image", image_name);
        ...
    }
}

puffin_egui allows you to inspect the resulting profile data using egui with only one line of code:

puffin_egui::profiler_window(egui_ctx);

See the examples/ folder for how to use it with eframe.

To try it out, run cargo run --release --example eframe