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use teleia::*;
use std::io::Write;
use std::os::fd::FromRawFd;
use std::os::unix::net::{AncillaryData, SocketAncillary};
use std::sync::mpsc::{Receiver, channel};
use std::{os::unix::net::UnixDatagram, thread::{spawn, JoinHandle}};
use glow::HasContext;
use crate::ffi::egl;
use crate::ffi::glfw;
const KEY: usize = 42;
const SOCK_PATH: &'static str = "/tmp/newton.sock";
pub struct Server {
pub tex: texture::Texture,
thread: JoinHandle<()>,
receiver: Receiver<i32>,
}
impl Server {
pub fn new(ctx: &context::Context) -> Self {
std::fs::remove_file(SOCK_PATH).expect("failed to remove socket");
let sock = UnixDatagram::bind(SOCK_PATH).expect("failed to bind texture server socket");
let (sender, receiver) = channel::<i32>();
let thread = spawn(move || {
let mut ancillary_buf = [0; 128];
let mut ancillary = SocketAncillary::new(&mut ancillary_buf);
loop {
match sock.recv_vectored_with_ancillary(&mut [], &mut ancillary) {
Ok(_) => {
for ar in ancillary.messages() {
match ar {
Ok(AncillaryData::ScmRights(mut sr)) => {
if let Some(fd) = sr.next() {
if let Err(e) = sender.send(fd) {
log::warn!("error on channel: {:?}", e);
}
}
},
Ok(_) => log::info!("message is not SCM_RIGHTS"),
Err(e) => log::warn!("failed to read ancillary message: {:?}", e),
}
}
},
Err(e) => log::warn!("texture server failed to receive: {}", e),
}
}
});
Self {
tex: texture::Texture::new_empty(ctx),
thread,
receiver,
}
}
pub fn update(&self, ctx: &context::Context) {
if let Ok(fd) = self.receiver.try_recv() {
log::info!("received file descriptor: {}", fd);
unsafe {
let window = ctx.window.borrow_mut().0.ptr;
let d = glfw::glfwGetEGLDisplay();
let c = glfw::glfwGetEGLContext(window);
let img = egl::eglCreateImage(d, c, egl::EGL_LINUX_DMA_BUF_EXT, std::ptr::null_mut(), [
egl::EGL_WIDTH as _, 16,
egl::EGL_HEIGHT as _, 16,
egl::EGL_LINUX_DRM_FOURCC_EXT as _, 875708993,
egl::EGL_DMA_BUF_PLANE0_FD_EXT as _, fd as _,
egl::EGL_DMA_BUF_PLANE0_OFFSET_EXT as _, 0,
egl::EGL_DMA_BUF_PLANE0_PITCH_EXT as _, 128,
egl::EGL_NONE as _,
].as_ptr());
self.tex.bind(ctx);
egl::glEGLImageTargetTexture2DOES(glow::TEXTURE_2D, img);
log::info!("set up texture");
}
}
}
}
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