Function setup

sdl/src/lib.rs:101–121

Creates an SDL console host and factory based on the given `spec`.

(
    spec: &mut ConsoleSpec<'_>,
    signals_tx: Sender<Signal>,
    fonts: &Fonts,
)

/// Creates an SDL console host and factory based on the given `spec`.
pub fn setup(
    spec: &mut ConsoleSpec<'_>,
    signals_tx: Sender<Signal>,
    fonts: &Fonts,
) -> io::Result<(Box<dyn ConsoleHost>, Box<dyn ConsoleFactory>)> {
    let resolution: Resolution = spec.take_keyed_flag("resolution")?.unwrap_or_else(|| {
        let width = NonZeroU32::new(DEFAULT_RESOLUTION_PIXELS.0).unwrap();
        let height = NonZeroU32::new(DEFAULT_RESOLUTION_PIXELS.1).unwrap();
        Resolution::Windowed((width, height))
    });

    let default_fg_color = spec.take_keyed_flag::<u8>("fg_color")?;
    let default_bg_color = spec.take_keyed_flag::<u8>("bg_color")?;

    let font_name = spec.take_keyed_flag_str("font").unwrap_or(FONT_VGA8X16.name);
    let font = fonts.get(font_name)?;

    let (host, factory) =
        new_console_pair(resolution, default_fg_color, default_bg_color, font, signals_tx);
    Ok((Box::from(host), Box::from(factory)))
}