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use crate::glx::types::Display as GlxDisplay;
use crate::{Error, GLApi};
use super::adapter::Adapter;
use super::connection::Connection;
use std::os::raw::c_int;
use std::ptr;
use x11::xlib::{self, Display, XCloseDisplay};
pub struct Device {
pub(crate) connection: Connection,
}
pub(crate) trait NativeDisplay {
fn display(&self) -> *mut Display;
fn is_destroyed(&self) -> bool;
unsafe fn destroy(&mut self);
}
impl Device {
#[inline]
pub fn new(connection: &Connection, _: &Adapter) -> Result<Device, Error> {
Ok(Device { connection: (*connection).clone() })
}
#[inline]
pub fn adapter(&self) -> Adapter {
Adapter
}
#[inline]
pub fn connection(&self) -> Connection {
self.connection.clone()
}
#[inline]
pub fn gl_api() -> GLApi {
GLApi::GL
}
pub(crate) fn glx_display(&self) -> *mut GlxDisplay {
self.connection.native_display.display() as *mut GlxDisplay
}
}
pub(crate) struct OwnedDisplay {
pub(crate) display: *mut Display,
}
impl NativeDisplay for OwnedDisplay {
#[inline]
fn display(&self) -> *mut Display {
debug_assert!(!self.is_destroyed());
self.display
}
#[inline]
fn is_destroyed(&self) -> bool {
self.display.is_null()
}
unsafe fn destroy(&mut self) {
assert!(!self.is_destroyed());
let result = XCloseDisplay(self.display);
assert_eq!(result, xlib::Success as c_int);
self.display = ptr::null_mut();
}
}
pub(crate) struct UnsafeDisplayRef {
pub(crate) display: *mut Display,
}
impl NativeDisplay for UnsafeDisplayRef {
#[inline]
fn display(&self) -> *mut Display {
debug_assert!(!self.is_destroyed());
self.display
}
#[inline]
fn is_destroyed(&self) -> bool {
self.display.is_null()
}
unsafe fn destroy(&mut self) {
assert!(!self.is_destroyed());
self.display = ptr::null_mut();
}
}