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#![deny(missing_docs)]
use gl;
pub use glutin::{
ContextError, CreationError, DeviceEvent, DeviceId, ElementState, Event, KeyboardInput,
ModifiersState, MouseScrollDelta, Touch, TouchPhase, VirtualKeyCode, WindowEvent, WindowId
};
pub use glutin::dpi::{LogicalPosition, LogicalSize};
pub use luminance_windowing::{CursorMode, Surface, WindowDim, WindowOpt};
use glutin::{
Api, ContextBuilder, EventsLoop, GlProfile, GlRequest, PossiblyCurrent,
WindowBuilder, WindowedContext
};
use glutin::dpi::PhysicalSize;
use luminance::context::GraphicsContext;
use luminance::state::{GraphicsState, StateQueryError};
use std::cell::RefCell;
use std::os::raw::c_void;
use std::rc::Rc;
#[derive(Debug)]
pub enum Error {
CreationError(CreationError),
ContextError(ContextError),
GraphicsStateError(StateQueryError)
}
impl From<CreationError> for Error {
fn from(e: CreationError) -> Self {
Error::CreationError(e)
}
}
impl From<ContextError> for Error {
fn from(e: ContextError) -> Self {
Error::ContextError(e)
}
}
pub struct GlutinSurface {
ctx: WindowedContext<PossiblyCurrent>,
event_loop: EventsLoop,
gfx_state: Rc<RefCell<GraphicsState>>,
opts: WindowOpt,
event_queue: Vec<Event>
}
unsafe impl GraphicsContext for GlutinSurface {
fn state(&self) -> &Rc<RefCell<GraphicsState>> {
&self.gfx_state
}
}
impl Surface for GlutinSurface {
type Error = Error;
type Event = Event;
fn new(dim: WindowDim, title: &str, win_opt: WindowOpt) -> Result<Self, Self::Error> {
let event_loop = EventsLoop::new();
let window_builder = WindowBuilder::new().with_title(title);
let window_builder = match dim {
WindowDim::Windowed(w, h) => window_builder.with_dimensions((w, h).into()),
WindowDim::Fullscreen => window_builder.with_fullscreen(Some(event_loop.get_primary_monitor())),
WindowDim::FullscreenRestricted(w, h) =>
window_builder
.with_dimensions((w, h).into())
.with_fullscreen(Some(event_loop.get_primary_monitor()))
};
let windowed_ctx = ContextBuilder::new()
.with_gl(GlRequest::Specific(Api::OpenGl, (3, 3)))
.with_gl_profile(GlProfile::Core)
.with_multisampling(win_opt.num_samples().unwrap_or(0) as u16)
.with_double_buffer(Some(true))
.build_windowed(window_builder, &event_loop)?;
let ctx = unsafe { windowed_ctx.make_current().map_err(|(_, e)| e)? };
gl::load_with(|s| ctx.get_proc_address(s) as *const c_void);
match win_opt.cursor_mode() {
CursorMode::Visible => ctx.window().hide_cursor(false),
CursorMode::Invisible | CursorMode::Disabled => ctx.window().hide_cursor(true),
}
ctx.window().show();
let gfx_state = GraphicsState::new().map_err(Error::GraphicsStateError)?;
let surface = GlutinSurface {
ctx,
event_loop,
gfx_state: Rc::new(RefCell::new(gfx_state)),
opts: win_opt,
event_queue: Vec::new()
};
Ok(surface)
}
fn opts(&self) -> &WindowOpt {
&self.opts
}
fn set_cursor_mode(&mut self, mode: CursorMode) -> &mut Self {
match mode {
CursorMode::Visible => self.ctx.window().hide_cursor(false),
CursorMode::Invisible | CursorMode::Disabled => self.ctx.window().hide_cursor(true)
}
self.opts = self.opts.set_cursor_mode(mode);
self
}
fn set_num_samples<S>(&mut self, _samples: S) -> &mut Self where S: Into<Option<u32>> {
panic!("not supported")
}
fn size(&self) -> [u32; 2] {
let logical = self.ctx.window().get_inner_size().unwrap();
let (w, h) = PhysicalSize::from_logical(logical, self.ctx.window().get_hidpi_factor()).into();
[w, h]
}
fn wait_events<'a>(&'a mut self) -> Box<dyn Iterator<Item = Self::Event> + 'a> {
panic!("not implemented yet")
}
fn poll_events<'a>(&'a mut self) -> Box<dyn Iterator<Item = Self::Event> + 'a> {
self.event_queue.clear();
let queue = &mut self.event_queue;
self.event_loop.poll_events(|event| {
queue.push(event);
});
Box::new(self.event_queue.iter().cloned())
}
fn swap_buffers(&mut self) {
self.ctx.swap_buffers().unwrap();
}
}