From a72e06cf1b8f0e037be8a0e3152b9b0ab9ef2c95 Mon Sep 17 00:00:00 2001 From: Pierre Krieger Date: Fri, 24 Apr 2015 14:22:57 +0200 Subject: [PATCH] Reorganize the Linux implementation and split OSMesa and X11 --- src/api/mod.rs | 1 + src/api/{x11/headless.rs => osmesa/mod.rs} | 33 +- src/api/x11/{window => }/events.rs | 2 +- src/api/x11/ffi.rs | 2 - src/api/x11/mod.rs | 895 ++++++++++++++++++++- src/api/x11/{window => }/monitor.rs | 2 +- src/api/x11/window/mod.rs | 885 -------------------- src/lib.rs | 2 - src/platform/linux/mod.rs | 13 +- 9 files changed, 913 insertions(+), 922 deletions(-) rename src/api/{x11/headless.rs => osmesa/mod.rs} (62%) rename src/api/x11/{window => }/events.rs (99%) rename src/api/x11/{window => }/monitor.rs (98%) delete mode 100644 src/api/x11/window/mod.rs diff --git a/src/api/mod.rs b/src/api/mod.rs index b7918801..a99cef7a 100644 --- a/src/api/mod.rs +++ b/src/api/mod.rs @@ -1,5 +1,6 @@ pub mod android; pub mod cocoa; pub mod egl; +pub mod osmesa; pub mod win32; pub mod x11; diff --git a/src/api/x11/headless.rs b/src/api/osmesa/mod.rs similarity index 62% rename from src/api/x11/headless.rs rename to src/api/osmesa/mod.rs index 8dffdea2..585ce723 100644 --- a/src/api/x11/headless.rs +++ b/src/api/osmesa/mod.rs @@ -1,28 +1,32 @@ +#![cfg(all(any(target_os = "linux", target_os = "freebsd"), feature="headless"))] + +extern crate osmesa_sys; + use BuilderAttribs; use CreationError; use CreationError::OsError; use libc; use std::{mem, ptr}; -use super::ffi; +use std::ffi::CString; -pub struct HeadlessContext { - context: ffi::OSMesaContext, +pub struct OsMesaContext { + context: osmesa_sys::OSMesaContext, buffer: Vec, width: u32, height: u32, } -impl HeadlessContext { - pub fn new(builder: BuilderAttribs) -> Result { +impl OsMesaContext { + pub fn new(builder: BuilderAttribs) -> Result { let dimensions = builder.dimensions.unwrap(); - Ok(HeadlessContext { + Ok(OsMesaContext { width: dimensions.0, height: dimensions.1, buffer: ::std::iter::repeat(unsafe { mem::uninitialized() }) .take((dimensions.0 * dimensions.1) as usize).collect(), context: unsafe { - let ctxt = ffi::OSMesaCreateContext(0x1908, ptr::null_mut()); + let ctxt = osmesa_sys::OSMesaCreateContext(0x1908, ptr::null_mut()); if ctxt.is_null() { return Err(OsError("OSMesaCreateContext failed".to_string())); } @@ -32,7 +36,7 @@ impl HeadlessContext { } pub unsafe fn make_current(&self) { - let ret = ffi::OSMesaMakeCurrent(self.context, + let ret = osmesa_sys::OSMesaMakeCurrent(self.context, self.buffer.as_ptr() as *mut libc::c_void, 0x1401, self.width as libc::c_int, self.height as libc::c_int); @@ -42,14 +46,13 @@ impl HeadlessContext { } pub fn is_current(&self) -> bool { - unsafe { ffi::OSMesaGetCurrentContext() == self.context } + unsafe { osmesa_sys::OSMesaGetCurrentContext() == self.context } } pub fn get_proc_address(&self, addr: &str) -> *const () { unsafe { - use std::ffi::CString; let c_str = CString::new(addr.as_bytes().to_vec()).unwrap(); - mem::transmute(ffi::OSMesaGetProcAddress(mem::transmute(c_str.as_ptr()))) + mem::transmute(osmesa_sys::OSMesaGetProcAddress(mem::transmute(c_str.as_ptr()))) } } @@ -62,11 +65,11 @@ impl HeadlessContext { } } -impl Drop for HeadlessContext { +impl Drop for OsMesaContext { fn drop(&mut self) { - unsafe { ffi::OSMesaDestroyContext(self.context) } + unsafe { osmesa_sys::OSMesaDestroyContext(self.context) } } } -unsafe impl Send for HeadlessContext {} -unsafe impl Sync for HeadlessContext {} +unsafe impl Send for OsMesaContext {} +unsafe impl Sync for OsMesaContext {} diff --git a/src/api/x11/window/events.rs b/src/api/x11/events.rs similarity index 99% rename from src/api/x11/window/events.rs rename to src/api/x11/events.rs index 0a8c95f1..bd289f77 100644 --- a/src/api/x11/window/events.rs +++ b/src/api/x11/events.rs @@ -1,5 +1,5 @@ use {events, libc}; -use super::super::ffi; +use super::ffi; use VirtualKeyCode; pub fn keycode_to_element(scancode: libc::c_uint) -> Option { diff --git a/src/api/x11/ffi.rs b/src/api/x11/ffi.rs index 2fcda3b6..9fd99330 100644 --- a/src/api/x11/ffi.rs +++ b/src/api/x11/ffi.rs @@ -1,5 +1,3 @@ -#[cfg(feature="headless")] -pub use osmesa_sys::*; pub use x11::keysym::*; pub use x11::xcursor::*; pub use x11::xf86vmode::*; diff --git a/src/api/x11/mod.rs b/src/api/x11/mod.rs index 5aadc94d..c4c5a76d 100644 --- a/src/api/x11/mod.rs +++ b/src/api/x11/mod.rs @@ -1,22 +1,887 @@ -#![cfg(target_os = "linux")] +#![cfg(all(target_os = "linux", feature = "window"))] -#[cfg(feature = "headless")] -pub use self::headless::HeadlessContext; +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, Once, ONCE_INIT}; -#[cfg(feature = "window")] -pub use self::window::{Window, WindowProxy, MonitorID, get_available_monitors, get_primary_monitor}; -#[cfg(feature = "window")] -pub use self::window::{WaitEventsIterator, PollEventsIterator}; +use Api; +use CursorState; +use GlRequest; +use PixelFormat; +pub use self::monitor::{MonitorID, get_available_monitors, get_primary_monitor}; + +mod events; mod ffi; +mod monitor; -#[cfg(feature = "headless")] -mod headless; +static THREAD_INIT: Once = ONCE_INIT; -#[cfg(feature = "window")] -mod window; +// 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(()); +} -#[cfg(not(feature = "window"))] -pub type Window = (); // TODO: hack to make things work -#[cfg(not(feature = "window"))] -pub type MonitorID = (); // TODO: hack to make things work +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() { + THREAD_INIT.call_once(|| { + unsafe { + ffi::XInitThreads(); + ffi::XSetErrorHandler(Some(x_error_callback)); + } + }); +} + +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()) +} + +struct XWindow { + display: *mut ffi::Display, + window: ffi::Window, + context: ffi::GLXContext, + is_fullscreen: bool, + screen_id: libc::c_int, + xf86_desk_mode: *mut ffi::XF86VidModeModeInfo, + ic: ffi::XIC, + im: ffi::XIM, +} + +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 + ffi::glx::DestroyContext(self.display as *mut _, self.context); + + if self.is_fullscreen { + ffi::XF86VidModeSwitchToMode(self.display, self.screen_id, self.xf86_desk_mode); + ffi::XF86VidModeSetViewPort(self.display, self.screen_id, 0, 0); + } + + ffi::XDestroyIC(self.ic); + ffi::XCloseIM(self.im); + ffi::XDestroyWindow(self.display, self.window); + ffi::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 { + ffi::XSendEvent(self.x.display, self.x.window, 0, 0, mem::transmute(&mut xev)); + ffi::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 { ffi::XCheckMaskEvent(self.window.x.display, -1, &mut xev) }; + + if res == 0 { + let res = unsafe { ffi::XCheckTypedEvent(self.window.x.display, ffi::ClientMessage, &mut xev) }; + + if res == 0 { + return None; + } + } + + match xev.get_type() { + ffi::KeymapNotify => { + unsafe { ffi::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(&xev) }; + + if event.type_ == ffi::KeyPress { + let raw_ev: *mut ffi::XKeyEvent = event; + unsafe { ffi::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 = ffi::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 { + ffi::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(1)); + None + } + ffi::Button5 => { + self.window.pending_events.lock().unwrap().push_back(MouseWheel(-1)); + 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 { ffi::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 { + 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 { + ensure_thread_init(); + let dimensions = builder.dimensions.unwrap_or((800, 600)); + + // calling XOpenDisplay + let display = unsafe { + let display = ffi::XOpenDisplay(ptr::null()); + if display.is_null() { + return Err(OsError(format!("XOpenDisplay failed"))); + } + display + }; + + let screen_id = match builder.monitor { + Some(MonitorID(monitor)) => monitor as i32, + None => unsafe { ffi::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 = ffi::glx::ChooseFBConfig(display as *mut _, ffi::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 + ffi::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 ffi::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 mut visual_infos: ffi::glx::types::XVisualInfo = unsafe { + let vi = ffi::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 _); + ffi::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 { ffi::glx::GetFBConfigAttrib(display as *mut _, fb_config, attrib, &mut value); } + value + }; + + PixelFormat { + hardware_accelerated: true, + red_bits: get_attrib(ffi::glx::RED_SIZE as libc::c_int) as u8, + green_bits: get_attrib(ffi::glx::GREEN_SIZE as libc::c_int) as u8, + blue_bits: 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 { ffi::XDefaultRootWindow(display) }; + + // creating the color map + let cmap = unsafe { + let cmap = ffi::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 { + ffi::XF86VidModeSwitchToMode(display, screen_id, *modes.offset(best_mode as isize)); + ffi::XF86VidModeSetViewPort(display, screen_id, 0, 0); + set_win_attr.override_redirect = 1; + } + } + + // finally creating the window + let window = unsafe { + let win = ffi::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 { + ffi::XMapRaised(display, window); + ffi::XFlush(display); + } + } + + // creating window, step 2 + let wm_delete_window = unsafe { + let mut wm_delete_window = with_c_str("WM_DELETE_WINDOW", |delete_window| + ffi::XInternAtom(display, delete_window, 0) + ); + ffi::XSetWMProtocols(display, window, &mut wm_delete_window, 1); + with_c_str(&*builder.title, |title| {; + ffi::XStoreName(display, window, title); + }); + ffi::XFlush(display); + + wm_delete_window + }; + + // creating IM + let im = unsafe { + let _lock = GLOBAL_XOPENIM_LOCK.lock().unwrap(); + + let im = ffi::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| + ffi::XCreateIC( + im, input_style, + ffi::XIMPreeditNothing | ffi::XIMStatusNothing, client_window, + window, ptr::null::<()>() + ) + ) + ); + if ic.is_null() { + return Err(OsError(format!("XCreateIC failed"))); + } + ffi::XSetICFocus(ic); + ic + }; + + // Attempt to make keyboard input repeat detectable + unsafe { + let mut supported_ptr = ffi::False; + ffi::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 = ffi::XAllocClassHint(); + (*hint).res_name = c_name as *mut i8; + (*hint).res_class = c_name as *mut i8; + ffi::XSetClassHint(display, window, hint); + ffi::XFree(hint as *mut libc::c_void); + }); + } + + // creating GL context + let (context, extra_functions) = unsafe { + let mut attributes = Vec::new(); + + match builder.gl_version { + GlRequest::Latest => {}, + GlRequest::Specific(Api::OpenGl, (major, minor)) => { + attributes.push(ffi::glx_extra::CONTEXT_MAJOR_VERSION_ARB as libc::c_int); + attributes.push(major as libc::c_int); + attributes.push(ffi::glx_extra::CONTEXT_MINOR_VERSION_ARB as libc::c_int); + attributes.push(minor as libc::c_int); + }, + GlRequest::Specific(_, _) => panic!("Only OpenGL is supported"), + GlRequest::GlThenGles { opengl_version: (major, minor), .. } => { + attributes.push(ffi::glx_extra::CONTEXT_MAJOR_VERSION_ARB as libc::c_int); + attributes.push(major as libc::c_int); + attributes.push(ffi::glx_extra::CONTEXT_MINOR_VERSION_ARB as libc::c_int); + attributes.push(minor as libc::c_int); + }, + } + + if builder.gl_debug { + attributes.push(ffi::glx_extra::CONTEXT_FLAGS_ARB as libc::c_int); + attributes.push(ffi::glx_extra::CONTEXT_DEBUG_BIT_ARB as libc::c_int); + } + + attributes.push(0); + + // loading the extra GLX functions + let extra_functions = ffi::glx_extra::Glx::load_with(|addr| { + with_c_str(addr, |s| { + use libc; + ffi::glx::GetProcAddress(s as *const u8) as *const libc::c_void + }) + }); + + let share = if let Some(win) = builder.sharing { + win.x.context + } else { + ptr::null() + }; + + let mut context = if extra_functions.CreateContextAttribsARB.is_loaded() { + extra_functions.CreateContextAttribsARB(display as *mut ffi::glx_extra::types::Display, + fb_config, share, 1, attributes.as_ptr()) + } else { + ptr::null() + }; + + if context.is_null() { + context = ffi::glx::CreateContext(display as *mut _, &mut visual_infos, share, 1) + } + + if context.is_null() { + return Err(OsError(format!("GL context creation failed"))); + } + + (context, extra_functions) + }; + + // vsync + if builder.vsync { + unsafe { ffi::glx::MakeCurrent(display as *mut _, window, context) }; + + if extra_functions.SwapIntervalEXT.is_loaded() { + // this should be the most common extension + unsafe { + extra_functions.SwapIntervalEXT(display as *mut _, window, 1); + } + + // checking that it worked + if builder.strict { + let mut swap = unsafe { mem::uninitialized() }; + unsafe { + ffi::glx::QueryDrawable(display as *mut _, window, + ffi::glx_extra::SWAP_INTERVAL_EXT as i32, + &mut swap); + } + + if swap != 1 { + return Err(OsError(format!("Couldn't setup vsync: expected \ + interval `1` but got `{}`", swap))); + } + } + + // GLX_MESA_swap_control is not official + /*} else if extra_functions.SwapIntervalMESA.is_loaded() { + unsafe { + extra_functions.SwapIntervalMESA(1); + }*/ + + } else if extra_functions.SwapIntervalSGI.is_loaded() { + unsafe { + extra_functions.SwapIntervalSGI(1); + } + + } else if builder.strict { + return Err(OsError(format!("Couldn't find any available vsync extension"))); + } + + unsafe { ffi::glx::MakeCurrent(display as *mut _, 0, ptr::null()) }; + } + + // creating the window object + let window = Window { + x: Arc::new(XWindow { + display: display, + window: window, + im: im, + ic: ic, + context: context, + screen_id: screen_id, + is_fullscreen: builder.monitor.is_some(), + 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 { + ffi::XStoreName(self.x.display, self.x.window, title); + ffi::XFlush(self.x.display); + }) + } + + pub fn show(&self) { + unsafe { + ffi::XMapRaised(self.x.display, self.x.window); + ffi::XFlush(self.x.display); + } + } + + pub fn hide(&self) { + unsafe { + ffi::XUnmapWindow(self.x.display, self.x.window); + ffi::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 ffi::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 { ffi::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 unsafe fn make_current(&self) { + let res = ffi::glx::MakeCurrent(self.x.display as *mut _, self.x.window, self.x.context); + if res == 0 { + panic!("glx::MakeCurrent failed"); + } + } + + pub fn is_current(&self) -> bool { + unsafe { ffi::glx::GetCurrentContext() == self.x.context } + } + + pub fn get_proc_address(&self, addr: &str) -> *const () { + use std::mem; + + unsafe { + with_c_str(addr, |s| { + ffi::glx::GetProcAddress(mem::transmute(s)) as *const () + }) + } + } + + pub fn swap_buffers(&self) { + unsafe { ffi::glx::SwapBuffers(self.x.display as *mut _, self.x.window) } + } + + 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 { + unimplemented!() + } + + /// See the docs in the crate root file. + pub fn get_api(&self) -> ::Api { + ::Api::OpenGl + } + + pub fn get_pixel_format(&self) -> PixelFormat { + self.pixel_format.clone() + } + + 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 = ffi::XcursorLibraryLoadCursor(self.x.display, c_string.as_ptr()); + ffi::XDefineCursor (self.x.display, self.x.window, xcursor); + ffi::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 { + ffi::XUngrabPointer(self.x.display, ffi::CurrentTime); + *cursor_state = CursorState::Normal; + Ok(()) + } + }, + + (CursorState::Grab, CursorState::Normal) => { + unsafe { + *cursor_state = CursorState::Grab; + + match ffi::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 { + ffi::XWarpPointer(self.x.display, 0, self.x.window, 0, 0, 0, 0, x, y); + } + + Ok(()) + } +} diff --git a/src/api/x11/window/monitor.rs b/src/api/x11/monitor.rs similarity index 98% rename from src/api/x11/window/monitor.rs rename to src/api/x11/monitor.rs index 46f2062b..274aef07 100644 --- a/src/api/x11/window/monitor.rs +++ b/src/api/x11/monitor.rs @@ -1,6 +1,6 @@ use std::ptr; use std::collections::VecDeque; -use super::super::ffi; +use super::ffi; use super::ensure_thread_init; use native_monitor::NativeMonitorId; diff --git a/src/api/x11/window/mod.rs b/src/api/x11/window/mod.rs deleted file mode 100644 index 80338c74..00000000 --- a/src/api/x11/window/mod.rs +++ /dev/null @@ -1,885 +0,0 @@ -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 super::ffi; -use std::sync::{Arc, Mutex, Once, ONCE_INIT}; - -use Api; -use CursorState; -use GlRequest; -use PixelFormat; - -pub use self::monitor::{MonitorID, get_available_monitors, get_primary_monitor}; - -mod events; -mod monitor; - -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() { - THREAD_INIT.call_once(|| { - unsafe { - ffi::XInitThreads(); - ffi::XSetErrorHandler(Some(x_error_callback)); - } - }); -} - -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()) -} - -struct XWindow { - display: *mut ffi::Display, - window: ffi::Window, - context: ffi::GLXContext, - is_fullscreen: bool, - screen_id: libc::c_int, - xf86_desk_mode: *mut ffi::XF86VidModeModeInfo, - ic: ffi::XIC, - im: ffi::XIM, -} - -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 - ffi::glx::DestroyContext(self.display as *mut _, self.context); - - if self.is_fullscreen { - ffi::XF86VidModeSwitchToMode(self.display, self.screen_id, self.xf86_desk_mode); - ffi::XF86VidModeSetViewPort(self.display, self.screen_id, 0, 0); - } - - ffi::XDestroyIC(self.ic); - ffi::XCloseIM(self.im); - ffi::XDestroyWindow(self.display, self.window); - ffi::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 { - ffi::XSendEvent(self.x.display, self.x.window, 0, 0, mem::transmute(&mut xev)); - ffi::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 { ffi::XCheckMaskEvent(self.window.x.display, -1, &mut xev) }; - - if res == 0 { - let res = unsafe { ffi::XCheckTypedEvent(self.window.x.display, ffi::ClientMessage, &mut xev) }; - - if res == 0 { - return None; - } - } - - match xev.get_type() { - ffi::KeymapNotify => { - unsafe { ffi::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(&xev) }; - - if event.type_ == ffi::KeyPress { - let raw_ev: *mut ffi::XKeyEvent = event; - unsafe { ffi::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 = ffi::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 { - ffi::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(1)); - None - } - ffi::Button5 => { - self.window.pending_events.lock().unwrap().push_back(MouseWheel(-1)); - 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 { ffi::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 { - 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 { - ensure_thread_init(); - let dimensions = builder.dimensions.unwrap_or((800, 600)); - - // calling XOpenDisplay - let display = unsafe { - let display = ffi::XOpenDisplay(ptr::null()); - if display.is_null() { - return Err(OsError(format!("XOpenDisplay failed"))); - } - display - }; - - let screen_id = match builder.monitor { - Some(MonitorID(monitor)) => monitor as i32, - None => unsafe { ffi::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 = ffi::glx::ChooseFBConfig(display as *mut _, ffi::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 - ffi::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 ffi::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 mut visual_infos: ffi::glx::types::XVisualInfo = unsafe { - let vi = ffi::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 _); - ffi::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 { ffi::glx::GetFBConfigAttrib(display as *mut _, fb_config, attrib, &mut value); } - value - }; - - PixelFormat { - hardware_accelerated: true, - red_bits: get_attrib(ffi::glx::RED_SIZE as libc::c_int) as u8, - green_bits: get_attrib(ffi::glx::GREEN_SIZE as libc::c_int) as u8, - blue_bits: 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 { ffi::XDefaultRootWindow(display) }; - - // creating the color map - let cmap = unsafe { - let cmap = ffi::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 { - ffi::XF86VidModeSwitchToMode(display, screen_id, *modes.offset(best_mode as isize)); - ffi::XF86VidModeSetViewPort(display, screen_id, 0, 0); - set_win_attr.override_redirect = 1; - } - } - - // finally creating the window - let window = unsafe { - let win = ffi::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 { - ffi::XMapRaised(display, window); - ffi::XFlush(display); - } - } - - // creating window, step 2 - let wm_delete_window = unsafe { - let mut wm_delete_window = with_c_str("WM_DELETE_WINDOW", |delete_window| - ffi::XInternAtom(display, delete_window, 0) - ); - ffi::XSetWMProtocols(display, window, &mut wm_delete_window, 1); - with_c_str(&*builder.title, |title| {; - ffi::XStoreName(display, window, title); - }); - ffi::XFlush(display); - - wm_delete_window - }; - - // creating IM - let im = unsafe { - let _lock = GLOBAL_XOPENIM_LOCK.lock().unwrap(); - - let im = ffi::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| - ffi::XCreateIC( - im, input_style, - ffi::XIMPreeditNothing | ffi::XIMStatusNothing, client_window, - window, ptr::null::<()>() - ) - ) - ); - if ic.is_null() { - return Err(OsError(format!("XCreateIC failed"))); - } - ffi::XSetICFocus(ic); - ic - }; - - // Attempt to make keyboard input repeat detectable - unsafe { - let mut supported_ptr = ffi::False; - ffi::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 = ffi::XAllocClassHint(); - (*hint).res_name = c_name as *mut i8; - (*hint).res_class = c_name as *mut i8; - ffi::XSetClassHint(display, window, hint); - ffi::XFree(hint as *mut libc::c_void); - }); - } - - // creating GL context - let (context, extra_functions) = unsafe { - let mut attributes = Vec::new(); - - match builder.gl_version { - GlRequest::Latest => {}, - GlRequest::Specific(Api::OpenGl, (major, minor)) => { - attributes.push(ffi::glx_extra::CONTEXT_MAJOR_VERSION_ARB as libc::c_int); - attributes.push(major as libc::c_int); - attributes.push(ffi::glx_extra::CONTEXT_MINOR_VERSION_ARB as libc::c_int); - attributes.push(minor as libc::c_int); - }, - GlRequest::Specific(_, _) => panic!("Only OpenGL is supported"), - GlRequest::GlThenGles { opengl_version: (major, minor), .. } => { - attributes.push(ffi::glx_extra::CONTEXT_MAJOR_VERSION_ARB as libc::c_int); - attributes.push(major as libc::c_int); - attributes.push(ffi::glx_extra::CONTEXT_MINOR_VERSION_ARB as libc::c_int); - attributes.push(minor as libc::c_int); - }, - } - - if builder.gl_debug { - attributes.push(ffi::glx_extra::CONTEXT_FLAGS_ARB as libc::c_int); - attributes.push(ffi::glx_extra::CONTEXT_DEBUG_BIT_ARB as libc::c_int); - } - - attributes.push(0); - - // loading the extra GLX functions - let extra_functions = ffi::glx_extra::Glx::load_with(|addr| { - with_c_str(addr, |s| { - use libc; - ffi::glx::GetProcAddress(s as *const u8) as *const libc::c_void - }) - }); - - let share = if let Some(win) = builder.sharing { - win.x.context - } else { - ptr::null() - }; - - let mut context = if extra_functions.CreateContextAttribsARB.is_loaded() { - extra_functions.CreateContextAttribsARB(display as *mut ffi::glx_extra::types::Display, - fb_config, share, 1, attributes.as_ptr()) - } else { - ptr::null() - }; - - if context.is_null() { - context = ffi::glx::CreateContext(display as *mut _, &mut visual_infos, share, 1) - } - - if context.is_null() { - return Err(OsError(format!("GL context creation failed"))); - } - - (context, extra_functions) - }; - - // vsync - if builder.vsync { - unsafe { ffi::glx::MakeCurrent(display as *mut _, window, context) }; - - if extra_functions.SwapIntervalEXT.is_loaded() { - // this should be the most common extension - unsafe { - extra_functions.SwapIntervalEXT(display as *mut _, window, 1); - } - - // checking that it worked - if builder.strict { - let mut swap = unsafe { mem::uninitialized() }; - unsafe { - ffi::glx::QueryDrawable(display as *mut _, window, - ffi::glx_extra::SWAP_INTERVAL_EXT as i32, - &mut swap); - } - - if swap != 1 { - return Err(OsError(format!("Couldn't setup vsync: expected \ - interval `1` but got `{}`", swap))); - } - } - - // GLX_MESA_swap_control is not official - /*} else if extra_functions.SwapIntervalMESA.is_loaded() { - unsafe { - extra_functions.SwapIntervalMESA(1); - }*/ - - } else if extra_functions.SwapIntervalSGI.is_loaded() { - unsafe { - extra_functions.SwapIntervalSGI(1); - } - - } else if builder.strict { - return Err(OsError(format!("Couldn't find any available vsync extension"))); - } - - unsafe { ffi::glx::MakeCurrent(display as *mut _, 0, ptr::null()) }; - } - - // creating the window object - let window = Window { - x: Arc::new(XWindow { - display: display, - window: window, - im: im, - ic: ic, - context: context, - screen_id: screen_id, - is_fullscreen: builder.monitor.is_some(), - 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 { - ffi::XStoreName(self.x.display, self.x.window, title); - ffi::XFlush(self.x.display); - }) - } - - pub fn show(&self) { - unsafe { - ffi::XMapRaised(self.x.display, self.x.window); - ffi::XFlush(self.x.display); - } - } - - pub fn hide(&self) { - unsafe { - ffi::XUnmapWindow(self.x.display, self.x.window); - ffi::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 ffi::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 { ffi::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 unsafe fn make_current(&self) { - let res = ffi::glx::MakeCurrent(self.x.display as *mut _, self.x.window, self.x.context); - if res == 0 { - panic!("glx::MakeCurrent failed"); - } - } - - pub fn is_current(&self) -> bool { - unsafe { ffi::glx::GetCurrentContext() == self.x.context } - } - - pub fn get_proc_address(&self, addr: &str) -> *const () { - use std::mem; - - unsafe { - with_c_str(addr, |s| { - ffi::glx::GetProcAddress(mem::transmute(s)) as *const () - }) - } - } - - pub fn swap_buffers(&self) { - unsafe { ffi::glx::SwapBuffers(self.x.display as *mut _, self.x.window) } - } - - 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 { - unimplemented!() - } - - /// See the docs in the crate root file. - pub fn get_api(&self) -> ::Api { - ::Api::OpenGl - } - - pub fn get_pixel_format(&self) -> PixelFormat { - self.pixel_format.clone() - } - - 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 = ffi::XcursorLibraryLoadCursor(self.x.display, c_string.as_ptr()); - ffi::XDefineCursor (self.x.display, self.x.window, xcursor); - ffi::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 { - ffi::XUngrabPointer(self.x.display, ffi::CurrentTime); - *cursor_state = CursorState::Normal; - Ok(()) - } - }, - - (CursorState::Grab, CursorState::Normal) => { - unsafe { - *cursor_state = CursorState::Grab; - - match ffi::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 { - ffi::XWarpPointer(self.x.display, 0, self.x.window, 0, 0, 0, 0, x, y); - } - - Ok(()) - } -} diff --git a/src/lib.rs b/src/lib.rs index 4079a972..6583e164 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -48,8 +48,6 @@ extern crate core_foundation; extern crate glutin_core_graphics as core_graphics; #[cfg(any(target_os = "linux", target_os = "freebsd"))] extern crate x11; -#[cfg(all(any(target_os = "linux", target_os = "freebsd"), feature="headless"))] -extern crate osmesa_sys; pub use events::*; #[cfg(feature = "headless")] diff --git a/src/platform/linux/mod.rs b/src/platform/linux/mod.rs index df3a318d..63a0118d 100644 --- a/src/platform/linux/mod.rs +++ b/src/platform/linux/mod.rs @@ -1,3 +1,14 @@ #![cfg(target_os = "linux")] -pub use api::x11::*; +#[cfg(feature = "headless")] +pub use api::osmesa::OsMesaContext as HeadlessContext; + +#[cfg(feature = "window")] +pub use api::x11::{Window, WindowProxy, MonitorID, get_available_monitors, get_primary_monitor}; +#[cfg(feature = "window")] +pub use api::x11::{WaitEventsIterator, PollEventsIterator}; + +#[cfg(not(feature = "window"))] +pub type Window = (); // TODO: hack to make things work +#[cfg(not(feature = "window"))] +pub type MonitorID = (); // TODO: hack to make things work