aboutsummaryrefslogtreecommitdiffstats
path: root/src/platform/linux/mod.rs
blob: 1e12a80ffc242f95844805af63e33cbd0788ddc5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
#![cfg(target_os = "linux")]

use Api;
use BuilderAttribs;
use CreationError;
use GlContext;
use PixelFormat;
use libc;

use api::osmesa::{self, OsMesaContext};

#[cfg(feature = "window")]
pub use api::x11::{Window, WindowProxy, MonitorID, get_available_monitors, get_primary_monitor};
#[cfg(feature = "window")]
pub use api::x11::{WaitEventsIterator, PollEventsIterator};

#[cfg(not(feature = "window"))]
pub type Window = ();       // TODO: hack to make things work
#[cfg(not(feature = "window"))]
pub type MonitorID = ();       // TODO: hack to make things work

pub struct HeadlessContext(OsMesaContext);

impl HeadlessContext {
    pub fn new(builder: BuilderAttribs) -> Result<HeadlessContext, CreationError> {
        match OsMesaContext::new(builder) {
            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) {
        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) {
        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()
    }
}