winit/src/platform/emscripten/mod.rs

#![cfg(target_os = "emscripten")]

use ContextError;
use GlContext;

pub use api::emscripten::{Window, WindowProxy, MonitorID, get_available_monitors};
pub use api::emscripten::{get_primary_monitor, WaitEventsIterator, PollEventsIterator};

pub struct HeadlessContext(Window);

impl HeadlessContext {
    /// See the docs in the crate root file.
    #[inline]
    pub fn new(builder: BuilderAttribs) -> Result<HeadlessContext, CreationError> {
        Window::new(builder).map(|w| HeadlessContext(w))
    }
}

impl GlContext for HeadlessContext {
    #[inline]
    unsafe fn make_current(&self) -> Result<(), ContextError> {
        self.0.make_current()
    }

    #[inline]
    fn is_current(&self) -> bool {
        self.0.is_current()
    }

    #[inline]
    fn get_proc_address(&self, addr: &str) -> *const libc::c_void {
        self.0.get_proc_address(addr)
    }

    #[inline]
    fn swap_buffers(&self) -> Result<(), ContextError> {
        self.0.swap_buffers()
    }

    #[inline]
    fn get_api(&self) -> Api {
        self.0.get_api()
    }

    #[inline]
    fn get_pixel_format(&self) -> PixelFormat {
        self.0.get_pixel_format()
    }
}

unsafe impl Send for HeadlessContext {}
unsafe impl Sync for HeadlessContext {}