Allow it to work under Xvfb.

Part of servo/servo#8641
This commit is contained in:
Michael Howell 2016-01-18 22:39:08 -07:00
parent 1113fa1c13
commit 0a43f8f733

View file

@ -57,7 +57,7 @@ pub struct XWindow {
pub context: Context, pub context: Context,
is_fullscreen: bool, is_fullscreen: bool,
screen_id: libc::c_int, screen_id: libc::c_int,
xf86_desk_mode: ffi::XF86VidModeModeInfo, xf86_desk_mode: Option<ffi::XF86VidModeModeInfo>,
ic: ffi::XIC, ic: ffi::XIC,
im: ffi::XIM, im: ffi::XIM,
colormap: ffi::Colormap, colormap: ffi::Colormap,
@ -90,7 +90,9 @@ impl Drop for XWindow {
let _lock = GLOBAL_XOPENIM_LOCK.lock().unwrap(); let _lock = GLOBAL_XOPENIM_LOCK.lock().unwrap();
if self.is_fullscreen { if self.is_fullscreen {
(self.display.xf86vmode.XF86VidModeSwitchToMode)(self.display.display, self.screen_id, &mut self.xf86_desk_mode); if let Some(mut xf86_desk_mode) = self.xf86_desk_mode {
(self.display.xf86vmode.XF86VidModeSwitchToMode)(self.display.display, self.screen_id, &mut xf86_desk_mode);
}
(self.display.xf86vmode.XF86VidModeSetViewPort)(self.display.display, self.screen_id, 0, 0); (self.display.xf86vmode.XF86VidModeSetViewPort)(self.display.display, self.screen_id, 0, 0);
} }
@ -324,36 +326,31 @@ impl Window {
let mut mode_num: libc::c_int = mem::uninitialized(); let mut mode_num: libc::c_int = mem::uninitialized();
let mut modes: *mut *mut ffi::XF86VidModeModeInfo = mem::uninitialized(); let mut modes: *mut *mut ffi::XF86VidModeModeInfo = mem::uninitialized();
if (display.xf86vmode.XF86VidModeGetAllModeLines)(display.display, screen_id, &mut mode_num, &mut modes) == 0 { if (display.xf86vmode.XF86VidModeGetAllModeLines)(display.display, screen_id, &mut mode_num, &mut modes) == 0 {
return Err(OsError(format!("Could not query the video modes"))); (None, None)
}
let xf86_desk_mode: ffi::XF86VidModeModeInfo = ptr::read(*modes.offset(0));
let mode_to_switch_to = if window_attrs.monitor.is_some() {
let matching_mode = (0 .. mode_num).map(|i| {
let m: ffi::XF86VidModeModeInfo = ptr::read(*modes.offset(i as isize) as *const _); m
}).find(|m| m.hdisplay == dimensions.0 as u16 && m.vdisplay == dimensions.1 as u16);
if let Some(matching_mode) = matching_mode {
Some(matching_mode)
} else {
let m = (0 .. mode_num).map(|i| {
let m: ffi::XF86VidModeModeInfo = ptr::read(*modes.offset(i as isize) as *const _); m
}).find(|m| m.hdisplay >= dimensions.0 as u16 && m.vdisplay >= dimensions.1 as u16);
match m {
Some(m) => Some(m),
None => return Err(OsError(format!("Could not find a suitable graphics mode")))
}
}
} else { } else {
None let xf86_desk_mode: ffi::XF86VidModeModeInfo = ptr::read(*modes.offset(0));
}; let mode_to_switch_to = if window_attrs.monitor.is_some() {
let matching_mode = (0 .. mode_num).map(|i| {
let m: ffi::XF86VidModeModeInfo = ptr::read(*modes.offset(i as isize) as *const _); m
}).find(|m| m.hdisplay == dimensions.0 as u16 && m.vdisplay == dimensions.1 as u16);
if let Some(matching_mode) = matching_mode {
Some(matching_mode)
} else {
let m = (0 .. mode_num).map(|i| {
let m: ffi::XF86VidModeModeInfo = ptr::read(*modes.offset(i as isize) as *const _); m
}).find(|m| m.hdisplay >= dimensions.0 as u16 && m.vdisplay >= dimensions.1 as u16);
(display.xlib.XFree)(modes as *mut _); match m {
Some(m) => Some(m),
(mode_to_switch_to, xf86_desk_mode) None => return Err(OsError(format!("Could not find a suitable graphics mode")))
}
}
} else {
None
};
(display.xlib.XFree)(modes as *mut _);
(mode_to_switch_to, Some(xf86_desk_mode))
}
}; };
// start the context building process // start the context building process