202 lines
7.8 KiB
Rust
202 lines
7.8 KiB
Rust
use super::{SurfaceKind, WindowMap};
|
|
use glium::texture::Texture2d;
|
|
use rand;
|
|
use smithay::backend::graphics::egl::wayland::{BufferAccessError, Format};
|
|
use smithay::backend::graphics::egl::wayland::{EGLDisplay, EGLImages};
|
|
use smithay::wayland::compositor::{compositor_init, CompositorToken, SurfaceAttributes, SurfaceEvent};
|
|
use smithay::wayland::shell::xdg::{xdg_shell_init, PopupConfigure, ShellState as XdgShellState,
|
|
ToplevelConfigure, XdgRequest, XdgSurfaceRole};
|
|
use smithay::wayland::shell::legacy::{wl_shell_init, ShellRequest, ShellState as WlShellState,
|
|
ShellSurfaceKind, ShellSurfaceRole};
|
|
use smithay::wayland::shm::with_buffer_contents as shm_buffer_contents;
|
|
use std::cell::RefCell;
|
|
use std::rc::Rc;
|
|
use std::sync::{Arc, Mutex};
|
|
use wayland_server::{Display, LoopToken, Resource};
|
|
use wayland_server::protocol::{wl_buffer, wl_callback, wl_shell_surface, wl_surface};
|
|
|
|
define_roles!(Roles => [ XdgSurface, XdgSurfaceRole ] [ ShellSurface, ShellSurfaceRole<()>] );
|
|
|
|
#[derive(Default)]
|
|
pub struct SurfaceData {
|
|
pub buffer: Option<Buffer>,
|
|
pub texture: Option<Texture2d>,
|
|
}
|
|
|
|
pub enum Buffer {
|
|
Egl { images: EGLImages },
|
|
Shm { data: Vec<u8>, size: (u32, u32) },
|
|
}
|
|
|
|
fn surface_commit(
|
|
surface: &Resource<wl_surface::WlSurface>,
|
|
token: CompositorToken<SurfaceData, Roles>,
|
|
display: &RefCell<Option<EGLDisplay>>,
|
|
) {
|
|
// we retrieve the contents of the associated buffer and copy it
|
|
token.with_surface_data(surface, |attributes| {
|
|
match attributes.buffer.take() {
|
|
Some(Some((buffer, (_x, _y)))) => {
|
|
// we ignore hotspot coordinates in this simple example
|
|
match if let Some(display) = display.borrow().as_ref() {
|
|
display.egl_buffer_contents(buffer)
|
|
} else {
|
|
Err(BufferAccessError::NotManaged(buffer))
|
|
} {
|
|
Ok(images) => {
|
|
match images.format {
|
|
Format::RGB => {}
|
|
Format::RGBA => {}
|
|
_ => {
|
|
// we don't handle the more complex formats here.
|
|
attributes.user_data.buffer = None;
|
|
attributes.user_data.texture = None;
|
|
return;
|
|
}
|
|
};
|
|
attributes.user_data.texture = None;
|
|
attributes.user_data.buffer = Some(Buffer::Egl { images });
|
|
}
|
|
Err(BufferAccessError::NotManaged(buffer)) => {
|
|
shm_buffer_contents(&buffer, |slice, data| {
|
|
let offset = data.offset as usize;
|
|
let stride = data.stride as usize;
|
|
let width = data.width as usize;
|
|
let height = data.height as usize;
|
|
let mut new_vec = Vec::with_capacity(width * height * 4);
|
|
for i in 0..height {
|
|
new_vec
|
|
.extend(&slice[(offset + i * stride)..(offset + i * stride + width * 4)]);
|
|
}
|
|
attributes.user_data.texture = None;
|
|
attributes.user_data.buffer = Some(Buffer::Shm { data: new_vec, size: (data.width as u32, data.height as u32) });
|
|
}).expect("Got EGL buffer with no set EGLDisplay. You need to unbind your EGLContexts before dropping them!");
|
|
buffer.send(wl_buffer::Event::Release);
|
|
}
|
|
Err(err) => panic!("EGL error: {}", err),
|
|
}
|
|
}
|
|
Some(None) => {
|
|
// erase the contents
|
|
attributes.user_data.buffer = None;
|
|
attributes.user_data.texture = None;
|
|
}
|
|
None => {}
|
|
}
|
|
});
|
|
}
|
|
|
|
fn get_size(attrs: &SurfaceAttributes<SurfaceData>) -> Option<(i32, i32)> {
|
|
attrs
|
|
.user_data
|
|
.buffer
|
|
.as_ref()
|
|
.map(|ref buffer| match **buffer {
|
|
Buffer::Shm { ref size, .. } => *size,
|
|
Buffer::Egl { ref images } => (images.width, images.height),
|
|
})
|
|
.map(|(x, y)| (x as i32, y as i32))
|
|
}
|
|
|
|
pub type MyWindowMap =
|
|
WindowMap<SurfaceData, Roles, (), (), fn(&SurfaceAttributes<SurfaceData>) -> Option<(i32, i32)>>;
|
|
|
|
pub fn init_shell(
|
|
display: &mut Display,
|
|
looptoken: LoopToken,
|
|
log: ::slog::Logger,
|
|
egl_display: Rc<RefCell<Option<EGLDisplay>>>,
|
|
) -> (
|
|
CompositorToken<SurfaceData, Roles>,
|
|
Arc<Mutex<XdgShellState<SurfaceData, Roles, ()>>>,
|
|
Arc<Mutex<WlShellState<SurfaceData, Roles, ()>>>,
|
|
Rc<RefCell<MyWindowMap>>,
|
|
) {
|
|
// Create the compositor
|
|
let c_egl_display = egl_display.clone();
|
|
let (compositor_token, _, _) = compositor_init(
|
|
display,
|
|
looptoken.clone(),
|
|
move |request, (surface, ctoken)| match request {
|
|
SurfaceEvent::Commit => surface_commit(&surface, ctoken, &*c_egl_display),
|
|
SurfaceEvent::Frame { callback } => callback
|
|
.implement(|e, _| match e {}, None::<fn(_, _)>)
|
|
.send(wl_callback::Event::Done { callback_data: 0 }),
|
|
},
|
|
log.clone(),
|
|
);
|
|
|
|
// Init a window map, to track the location of our windows
|
|
let window_map = Rc::new(RefCell::new(WindowMap::<_, _, (), (), _>::new(
|
|
compositor_token,
|
|
get_size as _,
|
|
)));
|
|
|
|
// init the xdg_shell
|
|
let xdg_window_map = window_map.clone();
|
|
let (xdg_shell_state, _, _) = xdg_shell_init(
|
|
display,
|
|
looptoken.clone(),
|
|
compositor_token.clone(),
|
|
move |shell_event, ()| match shell_event {
|
|
XdgRequest::NewToplevel { surface } => {
|
|
// place the window at a random location in the [0;300]x[0;300] square
|
|
use rand::distributions::{IndependentSample, Range};
|
|
let range = Range::new(0, 300);
|
|
let mut rng = rand::thread_rng();
|
|
let x = range.ind_sample(&mut rng);
|
|
let y = range.ind_sample(&mut rng);
|
|
surface.send_configure(ToplevelConfigure {
|
|
size: None,
|
|
states: vec![],
|
|
serial: 42,
|
|
});
|
|
xdg_window_map
|
|
.borrow_mut()
|
|
.insert(SurfaceKind::Xdg(surface), (x, y));
|
|
}
|
|
XdgRequest::NewPopup { surface } => surface.send_configure(PopupConfigure {
|
|
size: (10, 10),
|
|
position: (10, 10),
|
|
serial: 42,
|
|
}),
|
|
_ => (),
|
|
},
|
|
log.clone(),
|
|
);
|
|
|
|
// init the wl_shell
|
|
let shell_window_map = window_map.clone();
|
|
let (wl_shell_state, _) = wl_shell_init(
|
|
display,
|
|
looptoken,
|
|
compositor_token.clone(),
|
|
move |req: ShellRequest<_, _, ()>, ()| match req {
|
|
ShellRequest::SetKind {
|
|
surface,
|
|
kind: ShellSurfaceKind::Toplevel,
|
|
} => {
|
|
// place the window at a random location in the [0;300]x[0;300] square
|
|
use rand::distributions::{IndependentSample, Range};
|
|
let range = Range::new(0, 300);
|
|
let mut rng = rand::thread_rng();
|
|
let x = range.ind_sample(&mut rng);
|
|
let y = range.ind_sample(&mut rng);
|
|
surface.send_configure((0, 0), wl_shell_surface::Resize::None);
|
|
shell_window_map
|
|
.borrow_mut()
|
|
.insert(SurfaceKind::Wl(surface), (x, y));
|
|
}
|
|
_ => (),
|
|
},
|
|
log.clone(),
|
|
);
|
|
|
|
(
|
|
compositor_token,
|
|
xdg_shell_state,
|
|
wl_shell_state,
|
|
window_map,
|
|
)
|
|
}
|