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"b9cc00251562a284751c9973bace760d86c0276c471b4be569fe6b068ee97a56" +dependencies = [ + "bytemuck", +] diff --git a/Cargo.toml b/Cargo.toml new file mode 100644 index 0000000..123a76c --- /dev/null +++ b/Cargo.toml @@ -0,0 +1,11 @@ +[package] +name = "wallpapersc" +version = "0.1.0" +edition = "2024" + +[dependencies] +env_logger = "0.11.8" +eyre = "0.6.12" +log = "0.4.29" +smithay-client-toolkit = "0.20.0" +wayland-client = "0.31.11" diff --git a/shell.nix b/shell.nix new file mode 100644 index 0000000..1526788 --- /dev/null +++ b/shell.nix @@ -0,0 +1,8 @@ +{ pkgs ? import { } }: pkgs.mkShell rec { + packages = [ pkgs.pkg-config ]; + buildInputs = with pkgs; [ + wayland + libxkbcommon + ]; + LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath buildInputs; +} diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..6cf9649 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,256 @@ +use std::time::Duration; + +use eyre::{Context, Result}; +use log::{info, warn}; +use smithay_client_toolkit::{ + compositor::{CompositorHandler, CompositorState}, + output::{OutputHandler, OutputState}, + reexports::{calloop::EventLoop, calloop_wayland_source::WaylandSource}, + registry::{ProvidesRegistryState, RegistryState}, + registry_handlers, + shell::{ + WaylandSurface, + wlr_layer::{ + Anchor, KeyboardInteractivity, Layer, LayerShell, LayerShellHandler, LayerSurface, + }, + }, + shm::{Shm, ShmHandler, raw::RawPool}, +}; +use wayland_client::{ + Connection, QueueHandle, + globals::registry_queue_init, + protocol::{wl_buffer, wl_output::WlOutput, wl_shm}, +}; + +fn main() -> Result<()> { + env_logger::builder() + .filter(None, log::LevelFilter::Info) + .init(); + let conn = Connection::connect_to_env().wrap_err("can't connect to Wayland socket")?; + + let (globals, event_queue) = registry_queue_init(&conn).wrap_err("initializing connection")?; + + let mut event_loop: EventLoop = EventLoop::try_new().wrap_err("creating event loop")?; + let qh: &QueueHandle = &event_queue.handle(); + + let mut app = App { + registry_state: RegistryState::new(&globals), + output_state: OutputState::new(&globals, qh), + compositor_state: CompositorState::bind(&globals, qh) + .wrap_err("failed to bind wl_compositor global")?, + layer_shell: LayerShell::bind(&globals, qh) + .wrap_err("failed to bind zwlr_layer_shell_v1 global, does the compositor not support layer shell?")?, + shm: Shm::bind(&globals, qh).wrap_err("failed to bind shm")?, + + layer_surfaces: Vec::new(), + }; + + WaylandSource::new(conn.clone(), event_queue) + .insert(event_loop.handle()) + .wrap_err("failed to register wayland event source")?; + + loop { + event_loop + .dispatch(Duration::from_millis(16), &mut app) + .wrap_err("error during event loop")?; + } +} + +struct App { + registry_state: RegistryState, + output_state: OutputState, + compositor_state: CompositorState, + layer_shell: LayerShell, + shm: Shm, + + layer_surfaces: Vec, +} + +struct OutputSurface { + output: WlOutput, + _layer_surface: LayerSurface, +} + +impl ProvidesRegistryState for App { + fn registry(&mut self) -> &mut RegistryState { + &mut self.registry_state + } + registry_handlers![OutputState,]; +} + +impl OutputHandler for App { + fn output_state(&mut self) -> &mut OutputState { + &mut self.output_state + } + + fn new_output( + &mut self, + _: &Connection, + qh: &QueueHandle, + output: wayland_client::protocol::wl_output::WlOutput, + ) { + match self.output_state.info(&output) { + None => warn!("New output connected, unknown information"), + Some(info) => { + info!( + "New output connected ({})", + info.description.unwrap_or_else(|| "".into()), + ); + } + } + let surface: wayland_client::protocol::wl_surface::WlSurface = + self.compositor_state.create_surface(qh); + let layer_surface = self.layer_shell.create_layer_surface( + qh, + surface, + Layer::Background, + Some("wallpaper"), + Some(&output), + ); + layer_surface.set_anchor(Anchor::all()); + layer_surface.set_keyboard_interactivity(KeyboardInteractivity::None); + layer_surface.wl_surface().commit(); + self.layer_surfaces.push(OutputSurface { + output, + _layer_surface: layer_surface, + }); + } + + fn update_output( + &mut self, + _conn: &Connection, + _qh: &QueueHandle, + _output: wayland_client::protocol::wl_output::WlOutput, + ) { + } + + fn output_destroyed( + &mut self, + _conn: &Connection, + _qh: &QueueHandle, + output: wayland_client::protocol::wl_output::WlOutput, + ) { + if let Some(suface_idx) = self + .layer_surfaces + .iter() + .position(|surface| surface.output == output) + { + self.layer_surfaces.swap_remove(suface_idx); + } + } +} + +impl CompositorHandler for App { + fn scale_factor_changed( + &mut self, + _conn: &Connection, + _qh: &QueueHandle, + _surface: &wayland_client::protocol::wl_surface::WlSurface, + _new_factor: i32, + ) { + } + + fn transform_changed( + &mut self, + _conn: &Connection, + _qh: &QueueHandle, + _surface: &wayland_client::protocol::wl_surface::WlSurface, + _new_transform: wayland_client::protocol::wl_output::Transform, + ) { + } + + fn frame( + &mut self, + _conn: &Connection, + _qh: &QueueHandle, + _surface: &wayland_client::protocol::wl_surface::WlSurface, + _time: u32, + ) { + } + + fn surface_enter( + &mut self, + _conn: &Connection, + _qh: &QueueHandle, + _surface: &wayland_client::protocol::wl_surface::WlSurface, + _output: &wayland_client::protocol::wl_output::WlOutput, + ) { + } + + fn surface_leave( + &mut self, + _conn: &Connection, + _qh: &QueueHandle, + _surface: &wayland_client::protocol::wl_surface::WlSurface, + _output: &wayland_client::protocol::wl_output::WlOutput, + ) { + } +} + +impl LayerShellHandler for App { + fn closed( + &mut self, + _conn: &Connection, + _qh: &QueueHandle, + _layer: &smithay_client_toolkit::shell::wlr_layer::LayerSurface, + ) { + } + + fn configure( + &mut self, + _conn: &Connection, + qh: &QueueHandle, + layer: &smithay_client_toolkit::shell::wlr_layer::LayerSurface, + configure: smithay_client_toolkit::shell::wlr_layer::LayerSurfaceConfigure, + _serial: u32, + ) { + let (width, height) = configure.new_size; + info!("Reconfiguring surface to {}x{}", width, height); + let mut pool = RawPool::new(width as usize * height as usize * 4, &self.shm).unwrap(); + let canvas = pool.mmap(); + canvas + .chunks_exact_mut(4) + .enumerate() + .for_each(|(index, chunk)| { + let x = (index % width as usize) as u32; + let y = (index / width as usize) as u32; + + let a = 0xFF; + let r = u32::min(((width - x) * 0xFF) / width, ((height - y) * 0xFF) / height); + let g = u32::min((x * 0xFF) / width, ((height - y) * 0xFF) / height); + let b = u32::min(((width - x) * 0xFF) / width, (y * 0xFF) / height); + let color = (a << 24) + (r << 16) + (g << 8) + b; + + let array: &mut [u8; 4] = chunk.try_into().unwrap(); + *array = color.to_le_bytes(); + }); + + let buffer = pool.create_buffer( + 0, + width as i32, + height as i32, + width as i32 * 4, + wl_shm::Format::Argb8888, + (), + qh, + ); + + layer.wl_surface().attach(Some(&buffer), 0, 0); + layer.wl_surface().commit(); + + buffer.destroy(); + } +} + +impl ShmHandler for App { + fn shm_state(&mut self) -> &mut Shm { + &mut self.shm + } +} + +smithay_client_toolkit::delegate_registry!(App); +smithay_client_toolkit::delegate_output!(App); +smithay_client_toolkit::delegate_compositor!(App); +smithay_client_toolkit::delegate_layer!(App); +smithay_client_toolkit::delegate_shm!(App); +wayland_client::delegate_noop!(App: ignore wl_buffer::WlBuffer);