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#![cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd"))]
use Api;
use ContextError;
use CreationError;
use GlAttributes;
use GlContext;
use PixelFormat;
use PixelFormatRequirements;
use api::osmesa::{self, OsMesaContext};
pub use self::api_dispatch::{Window, WindowProxy, MonitorId, get_available_monitors, get_primary_monitor};
pub use self::api_dispatch::{WaitEventsIterator, PollEventsIterator};
mod api_dispatch;
pub struct HeadlessContext(OsMesaContext);
impl HeadlessContext {
pub fn new(dimensions: (u32, u32), pf_reqs: &PixelFormatRequirements,
opengl: &GlAttributes<&HeadlessContext>) -> Result<HeadlessContext, CreationError>
{
let opengl = opengl.clone().map_sharing(|c| &c.0);
match OsMesaContext::new(dimensions, pf_reqs, &opengl) {
Ok(c) => return Ok(HeadlessContext(c)),
Err(osmesa::OsMesaCreationError::NotSupported) => (),
Err(osmesa::OsMesaCreationError::CreationError(e)) => return Err(e),
};
Err(CreationError::NotSupported)
}
}
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 () {
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()
}
}
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