diff options
Diffstat (limited to 'src/api')
| -rw-r--r-- | src/api/mod.rs | 1 | ||||
| -rw-r--r-- | src/api/wayland/mod.rs | 378 |
2 files changed, 379 insertions, 0 deletions
diff --git a/src/api/mod.rs b/src/api/mod.rs index b1a7249..fe43616 100644 --- a/src/api/mod.rs +++ b/src/api/mod.rs @@ -6,5 +6,6 @@ pub mod egl; pub mod emscripten; pub mod glx; pub mod osmesa; +pub mod wayland; pub mod win32; pub mod x11; diff --git a/src/api/wayland/mod.rs b/src/api/wayland/mod.rs new file mode 100644 index 0000000..d2ca990 --- /dev/null +++ b/src/api/wayland/mod.rs @@ -0,0 +1,378 @@ +#![cfg(target_os = "linux")] + +use self::wayland::egl::{EGLSurface, is_egl_available}; +use self::wayland::core::{Display, Registry, Compositor, Shell, ShellSurface, + Seat, Pointer, default_display, WSurface, SurfaceId, + Surface}; + +use libc; +use api::dlopen; +use api::egl::Context as EglContext; + +use BuilderAttribs; +use CreationError; +use Event; +use PixelFormat; +use CursorState; +use MouseCursor; +use GlContext; + +use std::collections::{VecDeque, HashMap}; +use std::sync::{Arc, Mutex}; +use std::ffi::CString; + +extern crate wayland_client as wayland; + +struct WaylandContext { + pub display: Display, + pub registry: Registry, + pub compositor: Compositor, + pub shell: Shell, + pub seat: Seat, + pub pointer: Option<Pointer<WSurface>>, + windows_event_queues: Arc<Mutex<HashMap<SurfaceId, Arc<Mutex<VecDeque<Event>>>>>>, + current_pointer_surface: Arc<Mutex<Option<SurfaceId>>> +} + +impl WaylandContext { + pub fn new() -> Option<WaylandContext> { + let display = match default_display() { + Some(d) => d, + None => return None, + }; + let registry = display.get_registry(); + // let the registry get its events + display.sync_roundtrip(); + let compositor = match registry.get_compositor() { + Some(c) => c, + None => return None, + }; + let shell = match registry.get_shell() { + Some(s) => s, + None => return None, + }; + let seat = match registry.get_seats().into_iter().next() { + Some(s) => s, + None => return None, + }; + // let the other globals get their events + display.sync_roundtrip(); + + let current_pointer_surface = Arc::new(Mutex::new(None)); + + // rustc has trouble finding the correct type here, so we explicit it. + let windows_event_queues = Arc::new(Mutex::new( + HashMap::<SurfaceId, Arc<Mutex<VecDeque<Event>>>>::new() + )); + + // handle inputs + let mut pointer = seat.get_pointer(); + if let Some(ref mut p) = pointer { + // set the enter/leave callbacks + let current_surface = current_pointer_surface.clone(); + p.set_enter_action(move |_, sid, x, y| { + *current_surface.lock().unwrap() = Some(sid); + }); + let current_surface = current_pointer_surface.clone(); + p.set_leave_action(move |_, sid| { + *current_surface.lock().unwrap() = None; + }); + // set the events callbacks + let current_surface = current_pointer_surface.clone(); + let event_queues = windows_event_queues.clone(); + p.set_motion_action(move |_, _, x, y| { + // dispatch to the appropriate queue + let sid = *current_surface.lock().unwrap(); + if let Some(sid) = sid { + let map = event_queues.lock().unwrap(); + if let Some(queue) = map.get(&sid) { + queue.lock().unwrap().push_back(Event::Moved(x as i32,y as i32)) + } + } + }); + let current_surface = current_pointer_surface.clone(); + let event_queues = windows_event_queues.clone(); + p.set_button_action(move |_, sid, b, s| { + use self::wayland::core::ButtonState; + use MouseButton; + use ElementState; + let button = match b { + 0x110 => MouseButton::Left, + 0x111 => MouseButton::Right, + 0x112 => MouseButton::Middle, + _ => return + }; + let state = match s { + ButtonState::WL_POINTER_BUTTON_STATE_RELEASED => ElementState::Released, + ButtonState::WL_POINTER_BUTTON_STATE_PRESSED => ElementState::Pressed + }; + // dispatch to the appropriate queue + let sid = *current_surface.lock().unwrap(); + if let Some(sid) = sid { + let map = event_queues.lock().unwrap(); + if let Some(queue) = map.get(&sid) { + queue.lock().unwrap().push_back(Event::MouseInput(state, button)) + } + } + }); + } + Some(WaylandContext { + display: display, + registry: registry, + compositor: compositor, + shell: shell, + seat: seat, + pointer: pointer, + windows_event_queues: windows_event_queues, + current_pointer_surface: current_pointer_surface + }) + } + + fn register_surface(&self, sid: SurfaceId, queue: Arc<Mutex<VecDeque<Event>>>) { + self.windows_event_queues.lock().unwrap().insert(sid, queue); + } + + fn deregister_surface(&self, sid: SurfaceId) { + self.windows_event_queues.lock().unwrap().remove(&sid); + } +} + +lazy_static! { + static ref WAYLAND_CONTEXT: Option<WaylandContext> = { + WaylandContext::new() + }; +} + +pub struct Window { + shell_surface: ShellSurface<EGLSurface>, + pending_events: Arc<Mutex<VecDeque<Event>>>, + pub context: EglContext, +} + +// It is okay, as the window is completely self-owned: it has its +// own wayland connexion. +unsafe impl Send for Window {} + +#[derive(Clone)] +pub struct WindowProxy; + +impl WindowProxy { + pub fn wakeup_event_loop(&self) { + unimplemented!() + } +} + +pub struct MonitorID; + +pub fn get_available_monitors() -> VecDeque<MonitorID> { + VecDeque::new() +} +pub fn get_primary_monitor() -> MonitorID { + MonitorID +} + +impl MonitorID { + pub fn get_name(&self) -> Option<String> { + unimplemented!(); + } + + pub fn get_native_identifier(&self) -> ::native_monitor::NativeMonitorId { + ::native_monitor::NativeMonitorId::Unavailable + } + + pub fn get_dimensions(&self) -> (u32, u32) { + unimplemented!(); + } +} + + +pub struct PollEventsIterator<'a> { + window: &'a Window, +} + +impl<'a> Iterator for PollEventsIterator<'a> { + type Item = Event; + + fn next(&mut self) -> Option<Event> { + if let Some(ref ctxt) = *WAYLAND_CONTEXT { + ctxt.display.dispatch_pending(); + } + self.window.pending_events.lock().unwrap().pop_front() + } +} + +pub struct WaitEventsIterator<'a> { + window: &'a Window, +} + +impl<'a> Iterator for WaitEventsIterator<'a> { + type Item = Event; + + fn next(&mut self) -> Option<Event> { + if let Some(ref ctxt) = *WAYLAND_CONTEXT { + ctxt.display.dispatch(); + } + self.window.pending_events.lock().unwrap().pop_front() + } +} + +impl Window { + pub fn new(builder: BuilderAttribs) -> Result<Window, CreationError> { + use self::wayland::internals::FFI; + + let wayland_context = match *WAYLAND_CONTEXT { + Some(ref c) => c, + None => return Err(CreationError::NotSupported), + }; + + if !is_egl_available() { return Err(CreationError::NotSupported) } + + let (w, h) = builder.dimensions.unwrap_or((800, 600)); + + let surface = EGLSurface::new( + wayland_context.compositor.create_surface(), + w as i32, + h as i32 + ); + + let context = { + let libegl = unsafe { dlopen::dlopen(b"libEGL.so\0".as_ptr() as *const _, dlopen::RTLD_NOW) }; + if libegl.is_null() { + return Err(CreationError::NotSupported); + } + let egl = ::api::egl::ffi::egl::Egl::load_with(|sym| { + let sym = CString::new(sym).unwrap(); + unsafe { dlopen::dlsym(libegl, sym.as_ptr()) } + }); + try!(EglContext::new( + egl, + builder, + Some(wayland_context.display.ptr() as *const _), + surface.ptr() as *const _ + )) + }; + + let shell_surface = wayland_context.shell.get_shell_surface(surface); + shell_surface.set_toplevel(); + let events = Arc::new(Mutex::new(VecDeque::new())); + + wayland_context.register_surface(shell_surface.get_wsurface().get_id(), events.clone()); + + wayland_context.display.flush(); + + Ok(Window { + shell_surface: shell_surface, + pending_events: events, + context: context + }) + } + + pub fn is_closed(&self) -> bool { + false + } + + pub fn set_title(&self, title: &str) { + } + + pub fn show(&self) { + } + + pub fn hide(&self) { + } + + pub fn get_position(&self) -> Option<(i32, i32)> { + unimplemented!() + } + + pub fn set_position(&self, x: i32, y: i32) { + } + + pub fn get_inner_size(&self) -> Option<(u32, u32)> { + unimplemented!() + } + + pub fn get_outer_size(&self) -> Option<(u32, u32)> { + unimplemented!() + } + + pub fn set_inner_size(&self, _x: u32, _y: u32) { + unimplemented!() + } + + pub fn create_window_proxy(&self) -> WindowProxy { + unimplemented!() + } + + pub fn poll_events(&self) -> PollEventsIterator { + PollEventsIterator { + window: self + } + } + + pub fn wait_events(&self) -> WaitEventsIterator { + WaitEventsIterator { + window: self + } + } + + pub fn set_window_resize_callback(&mut self, _: Option<fn(u32, u32)>) { + } + + pub fn set_cursor(&self, cursor: MouseCursor) { + } + + pub fn set_cursor_state(&self, state: CursorState) -> Result<(), String> { + Ok(()) + } + + pub fn hidpi_factor(&self) -> f32 { + 1.0 + } + + pub fn set_cursor_position(&self, x: i32, y: i32) -> Result<(), ()> { + Ok(()) + } + + pub fn platform_display(&self) -> *mut libc::c_void { + unimplemented!() + } + + pub fn platform_window(&self) -> *mut libc::c_void { + unimplemented!() + } +} + +impl GlContext for Window { + + unsafe fn make_current(&self) { + self.context.make_current() + } + + fn is_current(&self) -> bool { + self.context.is_current() + } + + fn get_proc_address(&self, addr: &str) -> *const libc::c_void { + self.context.get_proc_address(addr) + } + + fn swap_buffers(&self) { + self.context.swap_buffers() + } + + fn get_api(&self) -> ::Api { + self.context.get_api() + } + + fn get_pixel_format(&self) -> PixelFormat { + self.context.get_pixel_format().clone() + } +} + +impl Drop for Window { + fn drop(&mut self) { + if let Some(ref ctxt) = *WAYLAND_CONTEXT { + ctxt.deregister_surface(self.shell_surface.get_wsurface().get_id()) + } + } +}
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