diff --git a/Cargo.toml b/Cargo.toml index de00dae6..63432fa4 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -21,7 +21,7 @@ libc = "0.1" shared_library = "0.1.0" [build-dependencies] -gl_generator = "0.0.25" +gl_generator = "0.0.26" khronos_api = "0.0.5" [dev-dependencies] diff --git a/src/api/x11/mod.rs b/src/api/x11/mod.rs index 30adadc2..e900583c 100644 --- a/src/api/x11/mod.rs +++ b/src/api/x11/mod.rs @@ -1,860 +1,12 @@ #![cfg(all(target_os = "linux", feature = "window"))] -use {Event, BuilderAttribs, MouseCursor}; -use CreationError; -use CreationError::OsError; -use libc; -use std::{mem, ptr}; -use std::cell::Cell; -use std::ffi::CString; -use std::sync::atomic::AtomicBool; -use std::collections::VecDeque; -use std::sync::{Arc, Mutex, Once, ONCE_INIT}; - -use Api; -use CursorState; -use GlContext; -use GlRequest; -use PixelFormat; - -use api::dlopen; -use api::glx::Context as GlxContext; -use api::egl::Context as EglContext; - -use platform::MonitorID as PlatformMonitorID; - pub use self::monitor::{MonitorID, get_available_monitors, get_primary_monitor}; +pub use self::window::{Window, XWindow, PollEventsIterator, WaitEventsIterator, Context, WindowProxy}; +pub use self::xdisplay::XConnection; + +pub mod ffi; mod events; mod monitor; -pub mod ffi; - -static THREAD_INIT: Once = ONCE_INIT; - -// XOpenIM doesn't seem to be thread-safe -lazy_static! { // TODO: use a static mutex when that's possible, and put me back in my function - static ref GLOBAL_XOPENIM_LOCK: Mutex<()> = Mutex::new(()); -} - -unsafe extern "C" fn x_error_callback(_: *mut ffi::Display, event: *mut ffi::XErrorEvent) -> libc::c_int { - println!("[glutin] x error code={} major={} minor={}!", (*event).error_code, (*event).request_code, (*event).minor_code); - 0 -} - -fn ensure_thread_init(xlib: &ffi::Xlib) { - THREAD_INIT.call_once(|| { - unsafe { - (xlib.XInitThreads)(); - (xlib.XSetErrorHandler)(Some(x_error_callback)); - } - }); -} - -// TODO: remove me -fn with_c_str(s: &str, f: F) -> T where F: FnOnce(*const libc::c_char) -> T { - use std::ffi::CString; - let c_str = CString::new(s.as_bytes().to_vec()).unwrap(); - f(c_str.as_ptr()) -} - -pub struct XWindow { - xlib: ffi::Xlib, - xf86vmode: ffi::Xf86vmode, - xcursor: ffi::Xcursor, - display: *mut ffi::Display, - window: ffi::Window, - pub context: Context, - is_fullscreen: bool, - screen_id: libc::c_int, - xf86_desk_mode: *mut ffi::XF86VidModeModeInfo, - ic: ffi::XIC, - im: ffi::XIM, -} - -pub enum Context { - Glx(GlxContext), - Egl(EglContext), - None, -} - -unsafe impl Send for XWindow {} -unsafe impl Sync for XWindow {} - -unsafe impl Send for Window {} -unsafe impl Sync for Window {} - -impl Drop for XWindow { - fn drop(&mut self) { - unsafe { - // we don't call MakeCurrent(0, 0) because we are not sure that the context - // is still the current one - self.context = Context::None; - - if self.is_fullscreen { - (self.xf86vmode.XF86VidModeSwitchToMode)(self.display, self.screen_id, self.xf86_desk_mode); - (self.xf86vmode.XF86VidModeSetViewPort)(self.display, self.screen_id, 0, 0); - } - - (self.xlib.XDestroyIC)(self.ic); - (self.xlib.XCloseIM)(self.im); - (self.xlib.XDestroyWindow)(self.display, self.window); - (self.xlib.XCloseDisplay)(self.display); - } - } -} - -#[derive(Clone)] -pub struct WindowProxy { - x: Arc, -} - -impl WindowProxy { - pub fn wakeup_event_loop(&self) { - let mut xev = ffi::XClientMessageEvent { - type_: ffi::ClientMessage, - window: self.x.window, - format: 32, - message_type: 0, - serial: 0, - send_event: 0, - display: self.x.display, - data: unsafe { mem::zeroed() }, - }; - - unsafe { - (self.x.xlib.XSendEvent)(self.x.display, self.x.window, 0, 0, mem::transmute(&mut xev)); - (self.x.xlib.XFlush)(self.x.display); - } - } -} - -pub struct PollEventsIterator<'a> { - window: &'a Window, -} - -impl<'a> Iterator for PollEventsIterator<'a> { - type Item = Event; - - fn next(&mut self) -> Option { - if let Some(ev) = self.window.pending_events.lock().unwrap().pop_front() { - return Some(ev); - } - - loop { - let mut xev = unsafe { mem::uninitialized() }; - let res = unsafe { (self.window.x.xlib.XCheckMaskEvent)(self.window.x.display, -1, &mut xev) }; - - if res == 0 { - let res = unsafe { (self.window.x.xlib.XCheckTypedEvent)(self.window.x.display, ffi::ClientMessage, &mut xev) }; - - if res == 0 { - return None; - } - } - - match xev.get_type() { - ffi::KeymapNotify => { - unsafe { (self.window.x.xlib.XRefreshKeyboardMapping)(mem::transmute(&xev)); } - }, - - ffi::ClientMessage => { - use events::Event::{Closed, Awakened}; - use std::sync::atomic::Ordering::Relaxed; - - let client_msg: &ffi::XClientMessageEvent = unsafe { mem::transmute(&xev) }; - - if client_msg.data.get_long(0) == self.window.wm_delete_window as libc::c_long { - self.window.is_closed.store(true, Relaxed); - return Some(Closed); - } else { - return Some(Awakened); - } - }, - - ffi::ConfigureNotify => { - use events::Event::Resized; - let cfg_event: &ffi::XConfigureEvent = unsafe { mem::transmute(&xev) }; - let (current_width, current_height) = self.window.current_size.get(); - if current_width != cfg_event.width || current_height != cfg_event.height { - self.window.current_size.set((cfg_event.width, cfg_event.height)); - return Some(Resized(cfg_event.width as u32, cfg_event.height as u32)); - } - }, - - ffi::Expose => { - use events::Event::Refresh; - return Some(Refresh); - }, - - ffi::MotionNotify => { - use events::Event::MouseMoved; - let event: &ffi::XMotionEvent = unsafe { mem::transmute(&xev) }; - return Some(MouseMoved((event.x as i32, event.y as i32))); - }, - - ffi::KeyPress | ffi::KeyRelease => { - use events::Event::{KeyboardInput, ReceivedCharacter}; - use events::ElementState::{Pressed, Released}; - let event: &mut ffi::XKeyEvent = unsafe { mem::transmute(&mut xev) }; - - if event.type_ == ffi::KeyPress { - let raw_ev: *mut ffi::XKeyEvent = event; - unsafe { (self.window.x.xlib.XFilterEvent)(mem::transmute(raw_ev), self.window.x.window) }; - } - - let state = if xev.get_type() == ffi::KeyPress { Pressed } else { Released }; - - let written = unsafe { - use std::str; - - let mut buffer: [u8; 16] = [mem::uninitialized(); 16]; - let raw_ev: *mut ffi::XKeyEvent = event; - let count = (self.window.x.xlib.Xutf8LookupString)(self.window.x.ic, mem::transmute(raw_ev), - mem::transmute(buffer.as_mut_ptr()), - buffer.len() as libc::c_int, ptr::null_mut(), ptr::null_mut()); - - str::from_utf8(&buffer[..count as usize]).unwrap_or("").to_string() - }; - - { - let mut pending = self.window.pending_events.lock().unwrap(); - for chr in written.chars() { - pending.push_back(ReceivedCharacter(chr)); - } - } - - let keysym = unsafe { - (self.window.x.xlib.XKeycodeToKeysym)(self.window.x.display, event.keycode as ffi::KeyCode, 0) - }; - - let vkey = events::keycode_to_element(keysym as libc::c_uint); - - return Some(KeyboardInput(state, event.keycode as u8, vkey)); - }, - - ffi::ButtonPress | ffi::ButtonRelease => { - use events::Event::{MouseInput, MouseWheel}; - use events::ElementState::{Pressed, Released}; - use events::MouseButton::{Left, Right, Middle}; - - let event: &ffi::XButtonEvent = unsafe { mem::transmute(&xev) }; - - let state = if xev.get_type() == ffi::ButtonPress { Pressed } else { Released }; - - let button = match event.button { - ffi::Button1 => Some(Left), - ffi::Button2 => Some(Middle), - ffi::Button3 => Some(Right), - ffi::Button4 => { - self.window.pending_events.lock().unwrap().push_back(MouseWheel(0.0, 1.0)); - None - } - ffi::Button5 => { - self.window.pending_events.lock().unwrap().push_back(MouseWheel(0.0, -1.0)); - None - } - _ => None - }; - - match button { - Some(button) => - return Some(MouseInput(state, button)), - None => () - }; - }, - - _ => () - }; - } - } -} - -pub struct WaitEventsIterator<'a> { - window: &'a Window, -} - -impl<'a> Iterator for WaitEventsIterator<'a> { - type Item = Event; - - fn next(&mut self) -> Option { - use std::mem; - - while !self.window.is_closed() { - if let Some(ev) = self.window.pending_events.lock().unwrap().pop_front() { - return Some(ev); - } - - // this will block until an event arrives, but doesn't remove - // it from the queue - let mut xev = unsafe { mem::uninitialized() }; - unsafe { (self.window.x.xlib.XPeekEvent)(self.window.x.display, &mut xev) }; - - // calling poll_events() - if let Some(ev) = self.window.poll_events().next() { - return Some(ev); - } - } - - None - } -} - -pub struct Window { - pub x: Arc, - is_closed: AtomicBool, - wm_delete_window: ffi::Atom, - current_size: Cell<(libc::c_int, libc::c_int)>, - pixel_format: PixelFormat, - /// Events that have been retreived with XLib but not dispatched with iterators yet - pending_events: Mutex>, - cursor_state: Mutex, -} - -impl Window { - pub fn new(builder: BuilderAttribs) -> Result { - let xlib = try!(ffi::Xlib::open().map_err(|_| CreationError::NotSupported)); - let xcursor = try!(ffi::Xcursor::open().map_err(|_| CreationError::NotSupported)); - let xf86vmode = try!(ffi::Xf86vmode::open().map_err(|_| CreationError::NotSupported)); - - let glx = { - let mut libglx = unsafe { dlopen::dlopen(b"libGL.so.1\0".as_ptr() as *const _, dlopen::RTLD_NOW) }; - if libglx.is_null() { - libglx = unsafe { dlopen::dlopen(b"libGL.so\0".as_ptr() as *const _, dlopen::RTLD_NOW) }; - } - if libglx.is_null() { - return Err(CreationError::NotSupported); - } - - ffi::glx::Glx::load_with(|sym| { - let sym = CString::new(sym).unwrap(); - unsafe { dlopen::dlsym(libglx, sym.as_ptr()) } - }) - }; - - ensure_thread_init(&xlib); - let dimensions = builder.dimensions.unwrap_or((800, 600)); - - // calling XOpenDisplay - let display = unsafe { - let display = (xlib.XOpenDisplay)(ptr::null()); - if display.is_null() { - return Err(OsError(format!("XOpenDisplay failed"))); - } - display - }; - - let screen_id = match builder.monitor { - Some(PlatformMonitorID::X(MonitorID(monitor))) => monitor as i32, - _ => unsafe { (xlib.XDefaultScreen)(display) }, - }; - - // getting the FBConfig - let fb_config = unsafe { - let mut visual_attributes = vec![ - ffi::glx::X_RENDERABLE as libc::c_int, 1, - ffi::glx::DRAWABLE_TYPE as libc::c_int, ffi::glx::WINDOW_BIT as libc::c_int, - ffi::glx::RENDER_TYPE as libc::c_int, ffi::glx::RGBA_BIT as libc::c_int, - ffi::glx::X_VISUAL_TYPE as libc::c_int, ffi::glx::TRUE_COLOR as libc::c_int, - ffi::glx::RED_SIZE as libc::c_int, 8, - ffi::glx::GREEN_SIZE as libc::c_int, 8, - ffi::glx::BLUE_SIZE as libc::c_int, 8, - ffi::glx::ALPHA_SIZE as libc::c_int, 8, - ffi::glx::DEPTH_SIZE as libc::c_int, 24, - ffi::glx::STENCIL_SIZE as libc::c_int, 8, - ffi::glx::DOUBLEBUFFER as libc::c_int, 1, - ]; - - if let Some(val) = builder.multisampling { - visual_attributes.push(ffi::glx::SAMPLE_BUFFERS as libc::c_int); - visual_attributes.push(1); - visual_attributes.push(ffi::glx::SAMPLES as libc::c_int); - visual_attributes.push(val as libc::c_int); - } - - if let Some(val) = builder.srgb { - visual_attributes.push(ffi::glx_extra::FRAMEBUFFER_SRGB_CAPABLE_ARB as libc::c_int); - visual_attributes.push(if val {1} else {0}); - } - - visual_attributes.push(0); - - let mut num_fb: libc::c_int = mem::uninitialized(); - - let fb = glx.ChooseFBConfig(display as *mut _, (xlib.XDefaultScreen)(display), - visual_attributes.as_ptr(), &mut num_fb); - if fb.is_null() { - return Err(OsError(format!("glx::ChooseFBConfig failed"))); - } - let preferred_fb = *fb; // TODO: choose more wisely - (xlib.XFree)(fb as *mut _); - preferred_fb - }; - - let mut best_mode = -1; - let modes = unsafe { - let mut mode_num: libc::c_int = mem::uninitialized(); - let mut modes: *mut *mut ffi::XF86VidModeModeInfo = mem::uninitialized(); - if (xf86vmode.XF86VidModeGetAllModeLines)(display, screen_id, &mut mode_num, &mut modes) == 0 { - return Err(OsError(format!("Could not query the video modes"))); - } - - for i in 0..mode_num { - let mode: ffi::XF86VidModeModeInfo = ptr::read(*modes.offset(i as isize) as *const _); - if mode.hdisplay == dimensions.0 as u16 && mode.vdisplay == dimensions.1 as u16 { - best_mode = i; - } - }; - if best_mode == -1 && builder.monitor.is_some() { - return Err(OsError(format!("Could not find a suitable graphics mode"))); - } - - modes - }; - - let xf86_desk_mode = unsafe { - *modes.offset(0) - }; - - // getting the visual infos - let visual_infos: ffi::glx::types::XVisualInfo = unsafe { - let vi = glx.GetVisualFromFBConfig(display as *mut _, fb_config); - if vi.is_null() { - return Err(OsError(format!("glx::ChooseVisual failed"))); - } - let vi_copy = ptr::read(vi as *const _); - (xlib.XFree)(vi as *mut _); - vi_copy - }; - - // querying the chosen pixel format - let pixel_format = { - let get_attrib = |attrib: libc::c_int| -> i32 { - let mut value = 0; - unsafe { glx.GetFBConfigAttrib(display as *mut _, fb_config, attrib, &mut value); } - value - }; - - PixelFormat { - hardware_accelerated: true, - color_bits: get_attrib(ffi::glx::RED_SIZE as libc::c_int) as u8 + - get_attrib(ffi::glx::GREEN_SIZE as libc::c_int) as u8 + - get_attrib(ffi::glx::BLUE_SIZE as libc::c_int) as u8, - alpha_bits: get_attrib(ffi::glx::ALPHA_SIZE as libc::c_int) as u8, - depth_bits: get_attrib(ffi::glx::DEPTH_SIZE as libc::c_int) as u8, - stencil_bits: get_attrib(ffi::glx::STENCIL_SIZE as libc::c_int) as u8, - stereoscopy: get_attrib(ffi::glx::STEREO as libc::c_int) != 0, - double_buffer: get_attrib(ffi::glx::DOUBLEBUFFER as libc::c_int) != 0, - multisampling: if get_attrib(ffi::glx::SAMPLE_BUFFERS as libc::c_int) != 0 { - Some(get_attrib(ffi::glx::SAMPLES as libc::c_int) as u16) - }else { None }, - srgb: get_attrib(ffi::glx_extra::FRAMEBUFFER_SRGB_CAPABLE_ARB as libc::c_int) != 0, - } - }; - - // getting the root window - let root = unsafe { (xlib.XDefaultRootWindow)(display) }; - - // creating the color map - let cmap = unsafe { - let cmap = (xlib.XCreateColormap)(display, root, - visual_infos.visual as *mut _, ffi::AllocNone); - // TODO: error checking? - cmap - }; - - // creating - let mut set_win_attr = { - let mut swa: ffi::XSetWindowAttributes = unsafe { mem::zeroed() }; - swa.colormap = cmap; - swa.event_mask = ffi::ExposureMask | ffi::StructureNotifyMask | - ffi::VisibilityChangeMask | ffi::KeyPressMask | ffi::PointerMotionMask | - ffi::KeyReleaseMask | ffi::ButtonPressMask | - ffi::ButtonReleaseMask | ffi::KeymapStateMask; - swa.border_pixel = 0; - swa.override_redirect = 0; - swa - }; - - let mut window_attributes = ffi::CWBorderPixel | ffi::CWColormap | ffi:: CWEventMask; - if builder.monitor.is_some() { - window_attributes |= ffi::CWOverrideRedirect; - unsafe { - (xf86vmode.XF86VidModeSwitchToMode)(display, screen_id, *modes.offset(best_mode as isize)); - (xf86vmode.XF86VidModeSetViewPort)(display, screen_id, 0, 0); - set_win_attr.override_redirect = 1; - } - } - - // finally creating the window - let window = unsafe { - let win = (xlib.XCreateWindow)(display, root, 0, 0, dimensions.0 as libc::c_uint, - dimensions.1 as libc::c_uint, 0, visual_infos.depth, ffi::InputOutput as libc::c_uint, - visual_infos.visual as *mut _, window_attributes, - &mut set_win_attr); - win - }; - - // set visibility - if builder.visible { - unsafe { - (xlib.XMapRaised)(display, window); - (xlib.XFlush)(display); - } - } - - // creating window, step 2 - let wm_delete_window = unsafe { - let mut wm_delete_window = with_c_str("WM_DELETE_WINDOW", |delete_window| - (xlib.XInternAtom)(display, delete_window, 0) - ); - (xlib.XSetWMProtocols)(display, window, &mut wm_delete_window, 1); - with_c_str(&*builder.title, |title| {; - (xlib.XStoreName)(display, window, title); - }); - (xlib.XFlush)(display); - - wm_delete_window - }; - - // creating IM - let im = unsafe { - let _lock = GLOBAL_XOPENIM_LOCK.lock().unwrap(); - - let im = (xlib.XOpenIM)(display, ptr::null_mut(), ptr::null_mut(), ptr::null_mut()); - if im.is_null() { - return Err(OsError(format!("XOpenIM failed"))); - } - im - }; - - // creating input context - let ic = unsafe { - let ic = with_c_str("inputStyle", |input_style| - with_c_str("clientWindow", |client_window| - (xlib.XCreateIC)( - im, input_style, - ffi::XIMPreeditNothing | ffi::XIMStatusNothing, client_window, - window, ptr::null::<()>() - ) - ) - ); - if ic.is_null() { - return Err(OsError(format!("XCreateIC failed"))); - } - (xlib.XSetICFocus)(ic); - ic - }; - - // Attempt to make keyboard input repeat detectable - unsafe { - let mut supported_ptr = ffi::False; - (xlib.XkbSetDetectableAutoRepeat)(display, ffi::True, &mut supported_ptr); - if supported_ptr == ffi::False { - return Err(OsError(format!("XkbSetDetectableAutoRepeat failed"))); - } - } - - // Set ICCCM WM_CLASS property based on initial window title - unsafe { - with_c_str(&*builder.title, |c_name| { - let hint = (xlib.XAllocClassHint)(); - (*hint).res_name = c_name as *mut i8; - (*hint).res_class = c_name as *mut i8; - (xlib.XSetClassHint)(display, window, hint); - (xlib.XFree)(hint as *mut libc::c_void); - }); - } - - let is_fullscreen = builder.monitor.is_some(); - // creating the context - let context = match builder.gl_version { - GlRequest::Latest | GlRequest::Specific(Api::OpenGl, _) | GlRequest::GlThenGles { .. } => { - Context::Glx(try!(GlxContext::new(glx, builder, display, window, - fb_config, visual_infos))) - }, - GlRequest::Specific(Api::OpenGlEs, _) => { - 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()) } - }); - Context::Egl(try!(EglContext::new(egl, builder, Some(display as *const _), unsafe { mem::transmute(window) }))) - }, - GlRequest::Specific(_, _) => { - return Err(CreationError::NotSupported); - }, - }; - - // creating the window object - let window = Window { - x: Arc::new(XWindow { - xlib: xlib, - xcursor: xcursor, - xf86vmode: xf86vmode, - display: display, - window: window, - im: im, - ic: ic, - context: context, - screen_id: screen_id, - is_fullscreen: is_fullscreen, - xf86_desk_mode: xf86_desk_mode, - }), - is_closed: AtomicBool::new(false), - wm_delete_window: wm_delete_window, - current_size: Cell::new((0, 0)), - pixel_format: pixel_format, - pending_events: Mutex::new(VecDeque::new()), - cursor_state: Mutex::new(CursorState::Normal), - }; - - // returning - Ok(window) - } - - pub fn is_closed(&self) -> bool { - use std::sync::atomic::Ordering::Relaxed; - self.is_closed.load(Relaxed) - } - - pub fn set_title(&self, title: &str) { - with_c_str(title, |title| unsafe { - (self.x.xlib.XStoreName)(self.x.display, self.x.window, title); - (self.x.xlib.XFlush)(self.x.display); - }) - } - - pub fn show(&self) { - unsafe { - (self.x.xlib.XMapRaised)(self.x.display, self.x.window); - (self.x.xlib.XFlush)(self.x.display); - } - } - - pub fn hide(&self) { - unsafe { - (self.x.xlib.XUnmapWindow)(self.x.display, self.x.window); - (self.x.xlib.XFlush)(self.x.display); - } - } - - fn get_geometry(&self) -> Option<(i32, i32, u32, u32, u32)> { - unsafe { - use std::mem; - - let mut root: ffi::Window = mem::uninitialized(); - let mut x: libc::c_int = mem::uninitialized(); - let mut y: libc::c_int = mem::uninitialized(); - let mut width: libc::c_uint = mem::uninitialized(); - let mut height: libc::c_uint = mem::uninitialized(); - let mut border: libc::c_uint = mem::uninitialized(); - let mut depth: libc::c_uint = mem::uninitialized(); - - if (self.x.xlib.XGetGeometry)(self.x.display, self.x.window, - &mut root, &mut x, &mut y, &mut width, &mut height, - &mut border, &mut depth) == 0 - { - return None; - } - - Some((x as i32, y as i32, width as u32, height as u32, border as u32)) - } - } - - pub fn get_position(&self) -> Option<(i32, i32)> { - self.get_geometry().map(|(x, y, _, _, _)| (x, y)) - } - - pub fn set_position(&self, x: i32, y: i32) { - unsafe { (self.x.xlib.XMoveWindow)(self.x.display, self.x.window, x as libc::c_int, y as libc::c_int); } - } - - pub fn get_inner_size(&self) -> Option<(u32, u32)> { - self.get_geometry().map(|(_, _, w, h, _)| (w, h)) - } - - pub fn get_outer_size(&self) -> Option<(u32, u32)> { - self.get_geometry().map(|(_, _, w, h, b)| (w + b, h + b)) // TODO: is this really outside? - } - - pub fn set_inner_size(&self, _x: u32, _y: u32) { - unimplemented!() - } - - pub fn create_window_proxy(&self) -> WindowProxy { - WindowProxy { - x: self.x.clone() - } - } - - pub fn poll_events(&self) -> PollEventsIterator { - PollEventsIterator { - window: self - } - } - - pub fn wait_events(&self) -> WaitEventsIterator { - WaitEventsIterator { - window: self - } - } - - pub fn platform_display(&self) -> *mut libc::c_void { - self.x.display as *mut libc::c_void - } - - pub fn platform_window(&self) -> *mut libc::c_void { - self.x.window as *mut libc::c_void - } - - - pub fn set_window_resize_callback(&mut self, _: Option) { - } - - pub fn set_cursor(&self, cursor: MouseCursor) { - unsafe { - use std::ffi::CString; - let cursor_name = match cursor { - MouseCursor::Alias => "link", - MouseCursor::Arrow => "arrow", - MouseCursor::Cell => "plus", - MouseCursor::Copy => "copy", - MouseCursor::Crosshair => "crosshair", - MouseCursor::Default => "left_ptr", - MouseCursor::Grabbing => "grabbing", - MouseCursor::Hand | MouseCursor::Grab => "hand", - MouseCursor::Help => "question_arrow", - MouseCursor::Move => "move", - MouseCursor::NoDrop => "circle", - MouseCursor::NotAllowed => "crossed_circle", - MouseCursor::Progress => "left_ptr_watch", - - /// Resize cursors - MouseCursor::EResize => "right_side", - MouseCursor::NResize => "top_side", - MouseCursor::NeResize => "top_right_corner", - MouseCursor::NwResize => "top_left_corner", - MouseCursor::SResize => "bottom_side", - MouseCursor::SeResize => "bottom_right_corner", - MouseCursor::SwResize => "bottom_left_corner", - MouseCursor::WResize => "left_side", - MouseCursor::EwResize | MouseCursor::ColResize => "h_double_arrow", - MouseCursor::NsResize | MouseCursor::RowResize => "v_double_arrow", - MouseCursor::NwseResize => "bd_double_arrow", - MouseCursor::NeswResize => "fd_double_arrow", - - MouseCursor::Text | MouseCursor::VerticalText => "xterm", - MouseCursor::Wait => "watch", - - /// TODO: Find matching X11 cursors - MouseCursor::ContextMenu | MouseCursor::NoneCursor | - MouseCursor::AllScroll | MouseCursor::ZoomIn | - MouseCursor::ZoomOut => "left_ptr", - }; - let c_string = CString::new(cursor_name.as_bytes().to_vec()).unwrap(); - let xcursor = (self.x.xcursor.XcursorLibraryLoadCursor)(self.x.display, c_string.as_ptr()); - (self.x.xlib.XDefineCursor)(self.x.display, self.x.window, xcursor); - (self.x.xlib.XFlush)(self.x.display); - } - } - - pub fn set_cursor_state(&self, state: CursorState) -> Result<(), String> { - let mut cursor_state = self.cursor_state.lock().unwrap(); - - match (state, *cursor_state) { - (CursorState::Normal, CursorState::Grab) => { - unsafe { - (self.x.xlib.XUngrabPointer)(self.x.display, ffi::CurrentTime); - *cursor_state = CursorState::Normal; - Ok(()) - } - }, - - (CursorState::Grab, CursorState::Normal) => { - unsafe { - *cursor_state = CursorState::Grab; - - match (self.x.xlib.XGrabPointer)( - self.x.display, self.x.window, ffi::False, - (ffi::ButtonPressMask | ffi::ButtonReleaseMask | ffi::EnterWindowMask | - ffi::LeaveWindowMask | ffi::PointerMotionMask | ffi::PointerMotionHintMask | - ffi::Button1MotionMask | ffi::Button2MotionMask | ffi::Button3MotionMask | - ffi::Button4MotionMask | ffi::Button5MotionMask | ffi::ButtonMotionMask | - ffi::KeymapStateMask) as libc::c_uint, - ffi::GrabModeAsync, ffi::GrabModeAsync, - self.x.window, 0, ffi::CurrentTime - ) { - ffi::GrabSuccess => Ok(()), - ffi::AlreadyGrabbed | ffi::GrabInvalidTime | - ffi::GrabNotViewable | ffi::GrabFrozen - => Err("cursor could not be grabbed".to_string()), - _ => unreachable!(), - } - } - }, - - _ => unimplemented!(), - } - } - - pub fn hidpi_factor(&self) -> f32 { - 1.0 - } - - pub fn set_cursor_position(&self, x: i32, y: i32) -> Result<(), ()> { - unsafe { - (self.x.xlib.XWarpPointer)(self.x.display, 0, self.x.window, 0, 0, 0, 0, x, y); - } - - Ok(()) - } -} - -impl GlContext for Window { - unsafe fn make_current(&self) { - match self.x.context { - Context::Glx(ref ctxt) => ctxt.make_current(), - Context::Egl(ref ctxt) => ctxt.make_current(), - Context::None => {} - } - } - - fn is_current(&self) -> bool { - match self.x.context { - Context::Glx(ref ctxt) => ctxt.is_current(), - Context::Egl(ref ctxt) => ctxt.is_current(), - Context::None => panic!() - } - } - - fn get_proc_address(&self, addr: &str) -> *const libc::c_void { - match self.x.context { - Context::Glx(ref ctxt) => ctxt.get_proc_address(addr), - Context::Egl(ref ctxt) => ctxt.get_proc_address(addr), - Context::None => ptr::null() - } - } - - fn swap_buffers(&self) { - match self.x.context { - Context::Glx(ref ctxt) => ctxt.swap_buffers(), - Context::Egl(ref ctxt) => ctxt.swap_buffers(), - Context::None => {} - } - } - - fn get_api(&self) -> Api { - match self.x.context { - Context::Glx(ref ctxt) => ctxt.get_api(), - Context::Egl(ref ctxt) => ctxt.get_api(), - Context::None => panic!() - } - } - - fn get_pixel_format(&self) -> PixelFormat { - self.pixel_format.clone() - } -} +mod window; +mod xdisplay; diff --git a/src/api/x11/monitor.rs b/src/api/x11/monitor.rs index a563d2e1..d5569304 100644 --- a/src/api/x11/monitor.rs +++ b/src/api/x11/monitor.rs @@ -1,72 +1,38 @@ -use std::ptr; use std::collections::VecDeque; -use super::ffi; -use super::ensure_thread_init; +use std::sync::Arc; + +use super::XConnection; use native_monitor::NativeMonitorId; -pub struct MonitorID(pub u32); +pub struct MonitorID(pub Arc, pub u32); -pub fn get_available_monitors() -> VecDeque { - let xlib = ffi::Xlib::open().unwrap(); // FIXME: gracious handling - - ensure_thread_init(&xlib); - let nb_monitors = unsafe { - let display = (xlib.XOpenDisplay)(ptr::null()); - if display.is_null() { - panic!("get_available_monitors failed"); - } - let nb_monitors = (xlib.XScreenCount)(display); - (xlib.XCloseDisplay)(display); - nb_monitors - }; +pub fn get_available_monitors(x: &Arc) -> VecDeque { + let nb_monitors = unsafe { (x.xlib.XScreenCount)(x.display) }; let mut monitors = VecDeque::new(); - monitors.extend((0..nb_monitors).map(|i| MonitorID(i as u32))); + monitors.extend((0 .. nb_monitors).map(|i| MonitorID(x.clone(), i as u32))); monitors } -pub fn get_primary_monitor() -> MonitorID { - let xlib = ffi::Xlib::open().unwrap(); // FIXME: gracious handling - - ensure_thread_init(&xlib); - let primary_monitor = unsafe { - let display = (xlib.XOpenDisplay)(ptr::null()); - if display.is_null() { - panic!("get_available_monitors failed"); - } - let primary_monitor = (xlib.XDefaultScreen)(display); - (xlib.XCloseDisplay)(display); - primary_monitor - }; - - MonitorID(primary_monitor as u32) +pub fn get_primary_monitor(x: &Arc) -> MonitorID { + let primary_monitor = unsafe { (x.xlib.XDefaultScreen)(x.display) }; + MonitorID(x.clone(), primary_monitor as u32) } impl MonitorID { pub fn get_name(&self) -> Option { - let MonitorID(screen_num) = *self; + let MonitorID(_, screen_num) = *self; Some(format!("Monitor #{}", screen_num)) } pub fn get_native_identifier(&self) -> NativeMonitorId { - let MonitorID(screen_num) = *self; - NativeMonitorId::Numeric(screen_num) + NativeMonitorId::Numeric(self.1) } pub fn get_dimensions(&self) -> (u32, u32) { - let xlib = ffi::Xlib::open().unwrap(); // FIXME: gracious handling - - let dimensions = unsafe { - let display = (xlib.XOpenDisplay)(ptr::null()); - let MonitorID(screen_num) = *self; - let screen = (xlib.XScreenOfDisplay)(display, screen_num as i32); - let width = (xlib.XWidthOfScreen)(screen); - let height = (xlib.XHeightOfScreen)(screen); - (xlib.XCloseDisplay)(display); - (width as u32, height as u32) - }; - - dimensions + let screen = unsafe { (self.0.xlib.XScreenOfDisplay)(self.0.display, self.1 as i32) }; + let width = unsafe { (self.0.xlib.XWidthOfScreen)(screen) }; + let height = unsafe { (self.0.xlib.XHeightOfScreen)(screen) }; + (width as u32, height as u32) } } - diff --git a/src/api/x11/window.rs b/src/api/x11/window.rs new file mode 100644 index 00000000..09946381 --- /dev/null +++ b/src/api/x11/window.rs @@ -0,0 +1,803 @@ +use {Event, BuilderAttribs, MouseCursor}; +use CreationError; +use CreationError::OsError; +use libc; +use std::{mem, ptr}; +use std::cell::Cell; +use std::sync::atomic::AtomicBool; +use std::collections::VecDeque; +use std::sync::{Arc, Mutex}; + +use Api; +use CursorState; +use GlContext; +use GlRequest; +use PixelFormat; + +use api::glx::Context as GlxContext; +use api::egl::Context as EglContext; + +use platform::MonitorID as PlatformMonitorID; + +use super::{events, ffi}; +use super::{MonitorID, XConnection}; + +// XOpenIM doesn't seem to be thread-safe +lazy_static! { // TODO: use a static mutex when that's possible, and put me back in my function + static ref GLOBAL_XOPENIM_LOCK: Mutex<()> = Mutex::new(()); +} + +// TODO: remove me +fn with_c_str(s: &str, f: F) -> T where F: FnOnce(*const libc::c_char) -> T { + use std::ffi::CString; + let c_str = CString::new(s.as_bytes().to_vec()).unwrap(); + f(c_str.as_ptr()) +} + +pub struct XWindow { + display: Arc, + window: ffi::Window, + pub context: Context, + is_fullscreen: bool, + screen_id: libc::c_int, + xf86_desk_mode: *mut ffi::XF86VidModeModeInfo, + ic: ffi::XIC, + im: ffi::XIM, +} + +pub enum Context { + Glx(GlxContext), + Egl(EglContext), + None, +} + +unsafe impl Send for XWindow {} +unsafe impl Sync for XWindow {} + +unsafe impl Send for Window {} +unsafe impl Sync for Window {} + +impl Drop for XWindow { + fn drop(&mut self) { + unsafe { + // we don't call MakeCurrent(0, 0) because we are not sure that the context + // is still the current one + self.context = Context::None; + + if self.is_fullscreen { + (self.display.xf86vmode.XF86VidModeSwitchToMode)(self.display.display, self.screen_id, self.xf86_desk_mode); + (self.display.xf86vmode.XF86VidModeSetViewPort)(self.display.display, self.screen_id, 0, 0); + } + + (self.display.xlib.XDestroyIC)(self.ic); + (self.display.xlib.XCloseIM)(self.im); + (self.display.xlib.XDestroyWindow)(self.display.display, self.window); + } + } +} + +#[derive(Clone)] +pub struct WindowProxy { + x: Arc, +} + +impl WindowProxy { + pub fn wakeup_event_loop(&self) { + let mut xev = ffi::XClientMessageEvent { + type_: ffi::ClientMessage, + window: self.x.window, + format: 32, + message_type: 0, + serial: 0, + send_event: 0, + display: self.x.display.display, + data: unsafe { mem::zeroed() }, + }; + + unsafe { + (self.x.display.xlib.XSendEvent)(self.x.display.display, self.x.window, 0, 0, mem::transmute(&mut xev)); + (self.x.display.xlib.XFlush)(self.x.display.display); + } + } +} + +pub struct PollEventsIterator<'a> { + window: &'a Window, +} + +impl<'a> Iterator for PollEventsIterator<'a> { + type Item = Event; + + fn next(&mut self) -> Option { + if let Some(ev) = self.window.pending_events.lock().unwrap().pop_front() { + return Some(ev); + } + + loop { + let mut xev = unsafe { mem::uninitialized() }; + let res = unsafe { (self.window.x.display.xlib.XCheckMaskEvent)(self.window.x.display.display, -1, &mut xev) }; + + if res == 0 { + let res = unsafe { (self.window.x.display.xlib.XCheckTypedEvent)(self.window.x.display.display, ffi::ClientMessage, &mut xev) }; + + if res == 0 { + return None; + } + } + + match xev.get_type() { + ffi::KeymapNotify => { + unsafe { (self.window.x.display.xlib.XRefreshKeyboardMapping)(mem::transmute(&xev)); } + }, + + ffi::ClientMessage => { + use events::Event::{Closed, Awakened}; + use std::sync::atomic::Ordering::Relaxed; + + let client_msg: &ffi::XClientMessageEvent = unsafe { mem::transmute(&xev) }; + + if client_msg.data.get_long(0) == self.window.wm_delete_window as libc::c_long { + self.window.is_closed.store(true, Relaxed); + return Some(Closed); + } else { + return Some(Awakened); + } + }, + + ffi::ConfigureNotify => { + use events::Event::Resized; + let cfg_event: &ffi::XConfigureEvent = unsafe { mem::transmute(&xev) }; + let (current_width, current_height) = self.window.current_size.get(); + if current_width != cfg_event.width || current_height != cfg_event.height { + self.window.current_size.set((cfg_event.width, cfg_event.height)); + return Some(Resized(cfg_event.width as u32, cfg_event.height as u32)); + } + }, + + ffi::Expose => { + use events::Event::Refresh; + return Some(Refresh); + }, + + ffi::MotionNotify => { + use events::Event::MouseMoved; + let event: &ffi::XMotionEvent = unsafe { mem::transmute(&xev) }; + return Some(MouseMoved((event.x as i32, event.y as i32))); + }, + + ffi::KeyPress | ffi::KeyRelease => { + use events::Event::{KeyboardInput, ReceivedCharacter}; + use events::ElementState::{Pressed, Released}; + let event: &mut ffi::XKeyEvent = unsafe { mem::transmute(&mut xev) }; + + if event.type_ == ffi::KeyPress { + let raw_ev: *mut ffi::XKeyEvent = event; + unsafe { (self.window.x.display.xlib.XFilterEvent)(mem::transmute(raw_ev), self.window.x.window) }; + } + + let state = if xev.get_type() == ffi::KeyPress { Pressed } else { Released }; + + let written = unsafe { + use std::str; + + let mut buffer: [u8; 16] = [mem::uninitialized(); 16]; + let raw_ev: *mut ffi::XKeyEvent = event; + let count = (self.window.x.display.xlib.Xutf8LookupString)(self.window.x.ic, mem::transmute(raw_ev), + mem::transmute(buffer.as_mut_ptr()), + buffer.len() as libc::c_int, ptr::null_mut(), ptr::null_mut()); + + str::from_utf8(&buffer[..count as usize]).unwrap_or("").to_string() + }; + + { + let mut pending = self.window.pending_events.lock().unwrap(); + for chr in written.chars() { + pending.push_back(ReceivedCharacter(chr)); + } + } + + let keysym = unsafe { + (self.window.x.display.xlib.XKeycodeToKeysym)(self.window.x.display.display, event.keycode as ffi::KeyCode, 0) + }; + + let vkey = events::keycode_to_element(keysym as libc::c_uint); + + return Some(KeyboardInput(state, event.keycode as u8, vkey)); + }, + + ffi::ButtonPress | ffi::ButtonRelease => { + use events::Event::{MouseInput, MouseWheel}; + use events::ElementState::{Pressed, Released}; + use events::MouseButton::{Left, Right, Middle}; + + let event: &ffi::XButtonEvent = unsafe { mem::transmute(&xev) }; + + let state = if xev.get_type() == ffi::ButtonPress { Pressed } else { Released }; + + let button = match event.button { + ffi::Button1 => Some(Left), + ffi::Button2 => Some(Middle), + ffi::Button3 => Some(Right), + ffi::Button4 => { + self.window.pending_events.lock().unwrap().push_back(MouseWheel(0.0, 1.0)); + None + } + ffi::Button5 => { + self.window.pending_events.lock().unwrap().push_back(MouseWheel(0.0, -1.0)); + None + } + _ => None + }; + + match button { + Some(button) => + return Some(MouseInput(state, button)), + None => () + }; + }, + + _ => () + }; + } + } +} + +pub struct WaitEventsIterator<'a> { + window: &'a Window, +} + +impl<'a> Iterator for WaitEventsIterator<'a> { + type Item = Event; + + fn next(&mut self) -> Option { + use std::mem; + + while !self.window.is_closed() { + if let Some(ev) = self.window.pending_events.lock().unwrap().pop_front() { + return Some(ev); + } + + // this will block until an event arrives, but doesn't remove + // it from the queue + let mut xev = unsafe { mem::uninitialized() }; + unsafe { (self.window.x.display.xlib.XPeekEvent)(self.window.x.display.display, &mut xev) }; + + // calling poll_events() + if let Some(ev) = self.window.poll_events().next() { + return Some(ev); + } + } + + None + } +} + +pub struct Window { + pub x: Arc, + is_closed: AtomicBool, + wm_delete_window: ffi::Atom, + current_size: Cell<(libc::c_int, libc::c_int)>, + pixel_format: PixelFormat, + /// Events that have been retreived with XLib but not dispatched with iterators yet + pending_events: Mutex>, + cursor_state: Mutex, +} + +impl Window { + pub fn new(display: &Arc, builder: BuilderAttribs) -> Result { + let dimensions = builder.dimensions.unwrap_or((800, 600)); + + let screen_id = match builder.monitor { + Some(PlatformMonitorID::X(MonitorID(_, monitor))) => monitor as i32, + _ => unsafe { (display.xlib.XDefaultScreen)(display.display) }, + }; + + // getting the FBConfig + let fb_config = unsafe { + let mut visual_attributes = vec![ + ffi::glx::X_RENDERABLE as libc::c_int, 1, + ffi::glx::DRAWABLE_TYPE as libc::c_int, ffi::glx::WINDOW_BIT as libc::c_int, + ffi::glx::RENDER_TYPE as libc::c_int, ffi::glx::RGBA_BIT as libc::c_int, + ffi::glx::X_VISUAL_TYPE as libc::c_int, ffi::glx::TRUE_COLOR as libc::c_int, + ffi::glx::RED_SIZE as libc::c_int, 8, + ffi::glx::GREEN_SIZE as libc::c_int, 8, + ffi::glx::BLUE_SIZE as libc::c_int, 8, + ffi::glx::ALPHA_SIZE as libc::c_int, 8, + ffi::glx::DEPTH_SIZE as libc::c_int, 24, + ffi::glx::STENCIL_SIZE as libc::c_int, 8, + ffi::glx::DOUBLEBUFFER as libc::c_int, 1, + ]; + + if let Some(val) = builder.multisampling { + visual_attributes.push(ffi::glx::SAMPLE_BUFFERS as libc::c_int); + visual_attributes.push(1); + visual_attributes.push(ffi::glx::SAMPLES as libc::c_int); + visual_attributes.push(val as libc::c_int); + } + + if let Some(val) = builder.srgb { + visual_attributes.push(ffi::glx_extra::FRAMEBUFFER_SRGB_CAPABLE_ARB as libc::c_int); + visual_attributes.push(if val {1} else {0}); + } + + visual_attributes.push(0); + + let mut num_fb: libc::c_int = mem::uninitialized(); + + let fb = display.glx.as_ref().unwrap().ChooseFBConfig(display.display as *mut _, (display.xlib.XDefaultScreen)(display.display), + visual_attributes.as_ptr(), &mut num_fb); + if fb.is_null() { + return Err(OsError(format!("glx::ChooseFBConfig failed"))); + } + let preferred_fb = *fb; // TODO: choose more wisely + (display.xlib.XFree)(fb as *mut _); + preferred_fb + }; + + let mut best_mode = -1; + let modes = unsafe { + let mut mode_num: libc::c_int = mem::uninitialized(); + let mut modes: *mut *mut ffi::XF86VidModeModeInfo = mem::uninitialized(); + if (display.xf86vmode.XF86VidModeGetAllModeLines)(display.display, screen_id, &mut mode_num, &mut modes) == 0 { + return Err(OsError(format!("Could not query the video modes"))); + } + + for i in 0..mode_num { + let mode: ffi::XF86VidModeModeInfo = ptr::read(*modes.offset(i as isize) as *const _); + if mode.hdisplay == dimensions.0 as u16 && mode.vdisplay == dimensions.1 as u16 { + best_mode = i; + } + }; + if best_mode == -1 && builder.monitor.is_some() { + return Err(OsError(format!("Could not find a suitable graphics mode"))); + } + + modes + }; + + let xf86_desk_mode = unsafe { + *modes.offset(0) + }; + + // getting the visual infos + let visual_infos: ffi::glx::types::XVisualInfo = unsafe { + let vi = display.glx.as_ref().unwrap().GetVisualFromFBConfig(display.display as *mut _, fb_config); + if vi.is_null() { + return Err(OsError(format!("glx::ChooseVisual failed"))); + } + let vi_copy = ptr::read(vi as *const _); + (display.xlib.XFree)(vi as *mut _); + vi_copy + }; + + // querying the chosen pixel format + let pixel_format = { + let get_attrib = |attrib: libc::c_int| -> i32 { + let mut value = 0; + unsafe { display.glx.as_ref().unwrap().GetFBConfigAttrib(display.display as *mut _, fb_config, attrib, &mut value); } + value + }; + + PixelFormat { + hardware_accelerated: true, + color_bits: get_attrib(ffi::glx::RED_SIZE as libc::c_int) as u8 + + get_attrib(ffi::glx::GREEN_SIZE as libc::c_int) as u8 + + get_attrib(ffi::glx::BLUE_SIZE as libc::c_int) as u8, + alpha_bits: get_attrib(ffi::glx::ALPHA_SIZE as libc::c_int) as u8, + depth_bits: get_attrib(ffi::glx::DEPTH_SIZE as libc::c_int) as u8, + stencil_bits: get_attrib(ffi::glx::STENCIL_SIZE as libc::c_int) as u8, + stereoscopy: get_attrib(ffi::glx::STEREO as libc::c_int) != 0, + double_buffer: get_attrib(ffi::glx::DOUBLEBUFFER as libc::c_int) != 0, + multisampling: if get_attrib(ffi::glx::SAMPLE_BUFFERS as libc::c_int) != 0 { + Some(get_attrib(ffi::glx::SAMPLES as libc::c_int) as u16) + }else { None }, + srgb: get_attrib(ffi::glx_extra::FRAMEBUFFER_SRGB_CAPABLE_ARB as libc::c_int) != 0, + } + }; + + // getting the root window + let root = unsafe { (display.xlib.XDefaultRootWindow)(display.display) }; + + // creating the color map + let cmap = unsafe { + let cmap = (display.xlib.XCreateColormap)(display.display, root, + visual_infos.visual as *mut _, ffi::AllocNone); + // TODO: error checking? + cmap + }; + + // creating + let mut set_win_attr = { + let mut swa: ffi::XSetWindowAttributes = unsafe { mem::zeroed() }; + swa.colormap = cmap; + swa.event_mask = ffi::ExposureMask | ffi::StructureNotifyMask | + ffi::VisibilityChangeMask | ffi::KeyPressMask | ffi::PointerMotionMask | + ffi::KeyReleaseMask | ffi::ButtonPressMask | + ffi::ButtonReleaseMask | ffi::KeymapStateMask; + swa.border_pixel = 0; + swa.override_redirect = 0; + swa + }; + + let mut window_attributes = ffi::CWBorderPixel | ffi::CWColormap | ffi:: CWEventMask; + if builder.monitor.is_some() { + window_attributes |= ffi::CWOverrideRedirect; + unsafe { + (display.xf86vmode.XF86VidModeSwitchToMode)(display.display, screen_id, *modes.offset(best_mode as isize)); + (display.xf86vmode.XF86VidModeSetViewPort)(display.display, screen_id, 0, 0); + set_win_attr.override_redirect = 1; + } + } + + // finally creating the window + let window = unsafe { + let win = (display.xlib.XCreateWindow)(display.display, root, 0, 0, dimensions.0 as libc::c_uint, + dimensions.1 as libc::c_uint, 0, visual_infos.depth, ffi::InputOutput as libc::c_uint, + visual_infos.visual as *mut _, window_attributes, + &mut set_win_attr); + win + }; + + // set visibility + if builder.visible { + unsafe { + (display.xlib.XMapRaised)(display.display, window); + (display.xlib.XFlush)(display.display); + } + } + + // creating window, step 2 + let wm_delete_window = unsafe { + let mut wm_delete_window = with_c_str("WM_DELETE_WINDOW", |delete_window| + (display.xlib.XInternAtom)(display.display, delete_window, 0) + ); + (display.xlib.XSetWMProtocols)(display.display, window, &mut wm_delete_window, 1); + with_c_str(&*builder.title, |title| {; + (display.xlib.XStoreName)(display.display, window, title); + }); + (display.xlib.XFlush)(display.display); + + wm_delete_window + }; + + // creating IM + let im = unsafe { + let _lock = GLOBAL_XOPENIM_LOCK.lock().unwrap(); + + let im = (display.xlib.XOpenIM)(display.display, ptr::null_mut(), ptr::null_mut(), ptr::null_mut()); + if im.is_null() { + return Err(OsError(format!("XOpenIM failed"))); + } + im + }; + + // creating input context + let ic = unsafe { + let ic = with_c_str("inputStyle", |input_style| + with_c_str("clientWindow", |client_window| + (display.xlib.XCreateIC)( + im, input_style, + ffi::XIMPreeditNothing | ffi::XIMStatusNothing, client_window, + window, ptr::null::<()>() + ) + ) + ); + if ic.is_null() { + return Err(OsError(format!("XCreateIC failed"))); + } + (display.xlib.XSetICFocus)(ic); + ic + }; + + // Attempt to make keyboard input repeat detectable + unsafe { + let mut supported_ptr = ffi::False; + (display.xlib.XkbSetDetectableAutoRepeat)(display.display, ffi::True, &mut supported_ptr); + if supported_ptr == ffi::False { + return Err(OsError(format!("XkbSetDetectableAutoRepeat failed"))); + } + } + + // Set ICCCM WM_CLASS property based on initial window title + unsafe { + with_c_str(&*builder.title, |c_name| { + let hint = (display.xlib.XAllocClassHint)(); + (*hint).res_name = c_name as *mut i8; + (*hint).res_class = c_name as *mut i8; + (display.xlib.XSetClassHint)(display.display, window, hint); + (display.xlib.XFree)(hint as *mut libc::c_void); + }); + } + + let is_fullscreen = builder.monitor.is_some(); + // creating the context + let context = match builder.gl_version { + GlRequest::Latest | GlRequest::Specific(Api::OpenGl, _) | GlRequest::GlThenGles { .. } => { + if let Some(ref glx) = display.glx { + Context::Glx(try!(GlxContext::new(glx.clone(), builder, display.display, window, + fb_config, visual_infos))) + } else if let Some(ref egl) = display.egl { + Context::Egl(try!(EglContext::new(egl.clone(), builder, Some(display.display as *const _), window as *const _))) + } else { + return Err(CreationError::NotSupported); + } + }, + GlRequest::Specific(Api::OpenGlEs, _) => { + if let Some(ref egl) = display.egl { + Context::Egl(try!(EglContext::new(egl.clone(), builder, Some(display.display as *const _), window as *const _))) + } else { + return Err(CreationError::NotSupported); + } + }, + GlRequest::Specific(_, _) => { + return Err(CreationError::NotSupported); + }, + }; + + // creating the window object + let window = Window { + x: Arc::new(XWindow { + display: display.clone(), + window: window, + im: im, + ic: ic, + context: context, + screen_id: screen_id, + is_fullscreen: is_fullscreen, + xf86_desk_mode: xf86_desk_mode, + }), + is_closed: AtomicBool::new(false), + wm_delete_window: wm_delete_window, + current_size: Cell::new((0, 0)), + pixel_format: pixel_format, + pending_events: Mutex::new(VecDeque::new()), + cursor_state: Mutex::new(CursorState::Normal), + }; + + // returning + Ok(window) + } + + pub fn is_closed(&self) -> bool { + use std::sync::atomic::Ordering::Relaxed; + self.is_closed.load(Relaxed) + } + + pub fn set_title(&self, title: &str) { + with_c_str(title, |title| unsafe { + (self.x.display.xlib.XStoreName)(self.x.display.display, self.x.window, title); + (self.x.display.xlib.XFlush)(self.x.display.display); + }) + } + + pub fn show(&self) { + unsafe { + (self.x.display.xlib.XMapRaised)(self.x.display.display, self.x.window); + (self.x.display.xlib.XFlush)(self.x.display.display); + } + } + + pub fn hide(&self) { + unsafe { + (self.x.display.xlib.XUnmapWindow)(self.x.display.display, self.x.window); + (self.x.display.xlib.XFlush)(self.x.display.display); + } + } + + fn get_geometry(&self) -> Option<(i32, i32, u32, u32, u32)> { + unsafe { + use std::mem; + + let mut root: ffi::Window = mem::uninitialized(); + let mut x: libc::c_int = mem::uninitialized(); + let mut y: libc::c_int = mem::uninitialized(); + let mut width: libc::c_uint = mem::uninitialized(); + let mut height: libc::c_uint = mem::uninitialized(); + let mut border: libc::c_uint = mem::uninitialized(); + let mut depth: libc::c_uint = mem::uninitialized(); + + if (self.x.display.xlib.XGetGeometry)(self.x.display.display, self.x.window, + &mut root, &mut x, &mut y, &mut width, &mut height, + &mut border, &mut depth) == 0 + { + return None; + } + + Some((x as i32, y as i32, width as u32, height as u32, border as u32)) + } + } + + pub fn get_position(&self) -> Option<(i32, i32)> { + self.get_geometry().map(|(x, y, _, _, _)| (x, y)) + } + + pub fn set_position(&self, x: i32, y: i32) { + unsafe { (self.x.display.xlib.XMoveWindow)(self.x.display.display, self.x.window, x as libc::c_int, y as libc::c_int); } + } + + pub fn get_inner_size(&self) -> Option<(u32, u32)> { + self.get_geometry().map(|(_, _, w, h, _)| (w, h)) + } + + pub fn get_outer_size(&self) -> Option<(u32, u32)> { + self.get_geometry().map(|(_, _, w, h, b)| (w + b, h + b)) // TODO: is this really outside? + } + + pub fn set_inner_size(&self, _x: u32, _y: u32) { + unimplemented!() + } + + pub fn create_window_proxy(&self) -> WindowProxy { + WindowProxy { + x: self.x.clone() + } + } + + pub fn poll_events(&self) -> PollEventsIterator { + PollEventsIterator { + window: self + } + } + + pub fn wait_events(&self) -> WaitEventsIterator { + WaitEventsIterator { + window: self + } + } + + pub fn platform_display(&self) -> *mut libc::c_void { + self.x.display.display as *mut libc::c_void + } + + pub fn platform_window(&self) -> *mut libc::c_void { + self.x.window as *mut libc::c_void + } + + + pub fn set_window_resize_callback(&mut self, _: Option) { + } + + pub fn set_cursor(&self, cursor: MouseCursor) { + unsafe { + use std::ffi::CString; + let cursor_name = match cursor { + MouseCursor::Alias => "link", + MouseCursor::Arrow => "arrow", + MouseCursor::Cell => "plus", + MouseCursor::Copy => "copy", + MouseCursor::Crosshair => "crosshair", + MouseCursor::Default => "left_ptr", + MouseCursor::Grabbing => "grabbing", + MouseCursor::Hand | MouseCursor::Grab => "hand", + MouseCursor::Help => "question_arrow", + MouseCursor::Move => "move", + MouseCursor::NoDrop => "circle", + MouseCursor::NotAllowed => "crossed_circle", + MouseCursor::Progress => "left_ptr_watch", + + /// Resize cursors + MouseCursor::EResize => "right_side", + MouseCursor::NResize => "top_side", + MouseCursor::NeResize => "top_right_corner", + MouseCursor::NwResize => "top_left_corner", + MouseCursor::SResize => "bottom_side", + MouseCursor::SeResize => "bottom_right_corner", + MouseCursor::SwResize => "bottom_left_corner", + MouseCursor::WResize => "left_side", + MouseCursor::EwResize | MouseCursor::ColResize => "h_double_arrow", + MouseCursor::NsResize | MouseCursor::RowResize => "v_double_arrow", + MouseCursor::NwseResize => "bd_double_arrow", + MouseCursor::NeswResize => "fd_double_arrow", + + MouseCursor::Text | MouseCursor::VerticalText => "xterm", + MouseCursor::Wait => "watch", + + /// TODO: Find matching X11 cursors + MouseCursor::ContextMenu | MouseCursor::NoneCursor | + MouseCursor::AllScroll | MouseCursor::ZoomIn | + MouseCursor::ZoomOut => "left_ptr", + }; + let c_string = CString::new(cursor_name.as_bytes().to_vec()).unwrap(); + let xcursor = (self.x.display.xcursor.XcursorLibraryLoadCursor)(self.x.display.display, c_string.as_ptr()); + (self.x.display.xlib.XDefineCursor)(self.x.display.display, self.x.window, xcursor); + (self.x.display.xlib.XFlush)(self.x.display.display); + } + } + + pub fn set_cursor_state(&self, state: CursorState) -> Result<(), String> { + let mut cursor_state = self.cursor_state.lock().unwrap(); + + match (state, *cursor_state) { + (CursorState::Normal, CursorState::Grab) => { + unsafe { + (self.x.display.xlib.XUngrabPointer)(self.x.display.display, ffi::CurrentTime); + *cursor_state = CursorState::Normal; + Ok(()) + } + }, + + (CursorState::Grab, CursorState::Normal) => { + unsafe { + *cursor_state = CursorState::Grab; + + match (self.x.display.xlib.XGrabPointer)( + self.x.display.display, self.x.window, ffi::False, + (ffi::ButtonPressMask | ffi::ButtonReleaseMask | ffi::EnterWindowMask | + ffi::LeaveWindowMask | ffi::PointerMotionMask | ffi::PointerMotionHintMask | + ffi::Button1MotionMask | ffi::Button2MotionMask | ffi::Button3MotionMask | + ffi::Button4MotionMask | ffi::Button5MotionMask | ffi::ButtonMotionMask | + ffi::KeymapStateMask) as libc::c_uint, + ffi::GrabModeAsync, ffi::GrabModeAsync, + self.x.window, 0, ffi::CurrentTime + ) { + ffi::GrabSuccess => Ok(()), + ffi::AlreadyGrabbed | ffi::GrabInvalidTime | + ffi::GrabNotViewable | ffi::GrabFrozen + => Err("cursor could not be grabbed".to_string()), + _ => unreachable!(), + } + } + }, + + _ => unimplemented!(), + } + } + + pub fn hidpi_factor(&self) -> f32 { + 1.0 + } + + pub fn set_cursor_position(&self, x: i32, y: i32) -> Result<(), ()> { + unsafe { + (self.x.display.xlib.XWarpPointer)(self.x.display.display, 0, self.x.window, 0, 0, 0, 0, x, y); + } + + Ok(()) + } +} + +impl GlContext for Window { + unsafe fn make_current(&self) { + match self.x.context { + Context::Glx(ref ctxt) => ctxt.make_current(), + Context::Egl(ref ctxt) => ctxt.make_current(), + Context::None => {} + } + } + + fn is_current(&self) -> bool { + match self.x.context { + Context::Glx(ref ctxt) => ctxt.is_current(), + Context::Egl(ref ctxt) => ctxt.is_current(), + Context::None => panic!() + } + } + + fn get_proc_address(&self, addr: &str) -> *const libc::c_void { + match self.x.context { + Context::Glx(ref ctxt) => ctxt.get_proc_address(addr), + Context::Egl(ref ctxt) => ctxt.get_proc_address(addr), + Context::None => ptr::null() + } + } + + fn swap_buffers(&self) { + match self.x.context { + Context::Glx(ref ctxt) => ctxt.swap_buffers(), + Context::Egl(ref ctxt) => ctxt.swap_buffers(), + Context::None => {} + } + } + + fn get_api(&self) -> Api { + match self.x.context { + Context::Glx(ref ctxt) => ctxt.get_api(), + Context::Egl(ref ctxt) => ctxt.get_api(), + Context::None => panic!() + } + } + + fn get_pixel_format(&self) -> PixelFormat { + self.pixel_format.clone() + } +} diff --git a/src/api/x11/xdisplay.rs b/src/api/x11/xdisplay.rs new file mode 100644 index 00000000..9037155b --- /dev/null +++ b/src/api/x11/xdisplay.rs @@ -0,0 +1,100 @@ +use std::ptr; +use std::ffi::CString; + +use libc; + +use super::ffi; +use api::egl::ffi::egl::Egl; +use api::dlopen; + +/// A connection to an X server. +pub struct XConnection { + pub xlib: ffi::Xlib, + pub xf86vmode: ffi::Xf86vmode, + pub xcursor: ffi::Xcursor, + pub glx: Option, + pub egl: Option, + pub display: *mut ffi::Display, +} + +unsafe impl Send for XConnection {} +unsafe impl Sync for XConnection {} + +/// Error returned if this system doesn't have XLib or can't create an X connection. +#[derive(Copy, Clone, Debug)] +pub struct XNotSupported; + +impl XConnection { + pub fn new() -> Result { + // opening the libraries + let xlib = try!(ffi::Xlib::open().map_err(|_| XNotSupported)); + let xcursor = try!(ffi::Xcursor::open().map_err(|_| XNotSupported)); + let xf86vmode = try!(ffi::Xf86vmode::open().map_err(|_| XNotSupported)); + + unsafe extern "C" fn x_error_callback(_: *mut ffi::Display, event: *mut ffi::XErrorEvent) + -> libc::c_int + { + println!("[glutin] x error code={} major={} minor={}!", (*event).error_code, + (*event).request_code, (*event).minor_code); + 0 + } + + unsafe { (xlib.XInitThreads)() }; + unsafe { (xlib.XSetErrorHandler)(Some(x_error_callback)) }; + + // TODO: use something safer than raw "dlopen" + let glx = { + let mut libglx = unsafe { dlopen::dlopen(b"libGL.so.1\0".as_ptr() as *const _, dlopen::RTLD_NOW) }; + if libglx.is_null() { + libglx = unsafe { dlopen::dlopen(b"libGL.so\0".as_ptr() as *const _, dlopen::RTLD_NOW) }; + } + + if libglx.is_null() { + None + } else { + Some(ffi::glx::Glx::load_with(|sym| { + let sym = CString::new(sym).unwrap(); + unsafe { dlopen::dlsym(libglx, sym.as_ptr()) } + })) + } + }; + + // TODO: use something safer than raw "dlopen" + let egl = { + let libegl = unsafe { dlopen::dlopen(b"libEGL.so\0".as_ptr() as *const _, dlopen::RTLD_NOW) }; + + if libegl.is_null() { + None + } else { + Some(Egl::load_with(|sym| { + let sym = CString::new(sym).unwrap(); + unsafe { dlopen::dlsym(libegl, sym.as_ptr()) } + })) + } + }; + + // calling XOpenDisplay + let display = unsafe { + let display = (xlib.XOpenDisplay)(ptr::null()); + if display.is_null() { + return Err(XNotSupported); + } + display + }; + + Ok(XConnection { + xlib: xlib, + xf86vmode: xf86vmode, + xcursor: xcursor, + glx: glx, + egl: egl, + display: display, + }) + } +} + +impl Drop for XConnection { + fn drop(&mut self) { + unsafe { (self.xlib.XCloseDisplay)(self.display) }; + } +} diff --git a/src/platform/linux/api_dispatch.rs b/src/platform/linux/api_dispatch.rs index e04cff57..d04a1fb8 100644 --- a/src/platform/linux/api_dispatch.rs +++ b/src/platform/linux/api_dispatch.rs @@ -4,6 +4,7 @@ pub use api::x11::{Window, WindowProxy, MonitorID, get_available_monitors, get_p pub use api::x11::{WaitEventsIterator, PollEventsIterator};*/ use std::collections::VecDeque; +use std::sync::Arc; use BuilderAttribs; use CreationError; @@ -16,9 +17,10 @@ use libc; use api::wayland; use api::x11; +use api::x11::XConnection; enum Backend { - X, + X(Arc), Wayland } @@ -28,7 +30,7 @@ lazy_static!( if false && wayland::is_available() { Backend::Wayland } else { - Backend::X + Backend::X(Arc::new(XConnection::new().unwrap())) } }; ); @@ -70,16 +72,17 @@ pub fn get_available_monitors() -> VecDeque { .into_iter() .map(MonitorID::Wayland) .collect(), - Backend::X => x11::get_available_monitors() - .into_iter() - .map(MonitorID::X) - .collect(), + Backend::X(ref connec) => x11::get_available_monitors(connec) + .into_iter() + .map(MonitorID::X) + .collect(), } } + pub fn get_primary_monitor() -> MonitorID { match *BACKEND { Backend::Wayland => MonitorID::Wayland(wayland::get_primary_monitor()), - Backend::X => MonitorID::X(x11::get_primary_monitor()), + Backend::X(ref connec) => MonitorID::X(x11::get_primary_monitor(connec)), } } @@ -147,7 +150,7 @@ impl Window { pub fn new(builder: BuilderAttribs) -> Result { match *BACKEND { Backend::Wayland => wayland::Window::new(builder).map(Window::Wayland), - Backend::X => x11::Window::new(builder).map(Window::X), + Backend::X(ref connec) => x11::Window::new(connec, builder).map(Window::X), } } @@ -286,7 +289,6 @@ impl Window { } impl GlContext for Window { - unsafe fn make_current(&self) { match self { &Window::X(ref w) => w.make_current(), @@ -328,4 +330,4 @@ impl GlContext for Window { &Window::Wayland(ref w) => w.get_pixel_format() } } -} \ No newline at end of file +}