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Merge pull request #395 from tomaka/x-reorg

Browse source 
Reorganize the Linux implementation and split OSMesa and X11
This commit is contained in:
tomaka 2015-04-24 19:27:41 +02:00
parent 4dee36631c a72e06cf1b
commit d6c50df294
9 changed files with 913 additions and 922 deletions
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1
src/api/mod.rs
View file

@ -1,5 +1,6 @@
pub mod android;
pub mod cocoa;
pub mod egl;
pub mod osmesa;
pub mod win32;
pub mod x11;

33
src/api/x11/headless.rs → src/api/osmesa/mod.rs
View file

@ -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<u32>,
width: u32,
height: u32,
}
impl HeadlessContext {
pub fn new(builder: BuilderAttribs) -> Result<HeadlessContext, CreationError> {
impl OsMesaContext {
pub fn new(builder: BuilderAttribs) -> Result<OsMesaContext, CreationError> {
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 {}

2
src/api/x11/window/events.rs → src/api/x11/events.rs
View file

@ -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<VirtualKeyCode> {

2
src/api/x11/ffi.rs
View file

@ -1,5 +1,3 @@
#[cfg(feature="headless")]
pub use osmesa_sys::*;
pub use x11::keysym::*;
pub use x11::xcursor::*;
pub use x11::xf86vmode::*;

895
src/api/x11/mod.rs
View file

@ -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<F, T>(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<XWindow>,
}
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<Event> {
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<Event> {
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<XWindow>,
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<VecDeque<Event>>,
cursor_state: Mutex<CursorState>,
}
impl Window {
pub fn new(builder: BuilderAttribs) -> Result<Window, CreationError> {
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<fn(u32, u32)>) {
}
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(())
}
}

2
src/api/x11/window/monitor.rs → src/api/x11/monitor.rs
View file

@ -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;

885
src/api/x11/window/mod.rs
View file

@ -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<F, T>(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<XWindow>,
}
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<Event> {
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<Event> {
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<XWindow>,
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<VecDeque<Event>>,
cursor_state: Mutex<CursorState>,
}
impl Window {
pub fn new(builder: BuilderAttribs) -> Result<Window, CreationError> {
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<fn(u32, u32)>) {
}
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(())
}
}

2
src/lib.rs
View file

@ -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")]

13
src/platform/linux/mod.rs
View file

@ -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