mirror of
https://gitlab.freedesktop.org/xorg/xserver.git
synced 2025-12-25 04:50:05 +01:00
07fa12ad1d
There's no real benefit to using GLX, and the other DDXes are using EGL already, so let's converge on EGL so we can concentrate the fixes in one place. We go to some effort to avoid being the thing that requires libX11 here. We prefer EGL_EXT_platform_xcb over _x11, and if forced to use the latter we'll ask the dynamic linker for XGetXCBConnection and XOpenDisplay rather than link against xlib stuff ourselves. Xephyr is now a pure XCB application if it can be. Reviewed-by: Emma Anholt <emma@anholt.net> |
||
|---|---|---|
| .. | ||
| man | ||
| .gitignore | ||
| ephyr.c | ||
| ephyr.h | ||
| ephyr_draw.c | ||
| ephyr_glamor.c | ||
| ephyr_glamor.h | ||
| ephyr_glamor_xv.c | ||
| ephyrcursor.c | ||
| ephyrinit.c | ||
| ephyrlog.h | ||
| ephyrvideo.c | ||
| hostx.c | ||
| hostx.h | ||
| Makefile.am | ||
| meson.build | ||
| README | ||
Xephyr README
=============
What Is It ?
============
Xephyr is a a kdrive server that outputs to a window on a pre-existing
'host' X display. Think Xnest but with support for modern extensions
like composite, damage and randr.
Unlike Xnest which is an X proxy, i.e. limited to the
capabilities of the host X server, Xephyr is a real X server which
uses the host X server window as "framebuffer" via fast SHM XImages.
It also has support for 'visually' debugging what the server is
painting.
How To Use
==========
You probably want to run like;
Xephyr :1 -ac -screen 800x600 &
Then set DISPLAY=:1 and run whatever X apps you like.
Use 'xrandr' to change to orientation/size.
There is a '-parent' switch which works just like Xnest's ( for use
with things like matchbox-nest - http://matchbox.handhelds.org ).
There is also a '-host-cursor' switch to set 'cursor acceleration' -
The host's cursor is reused. This is only really there to aid
debugging by avoiding server paints for the cursor. Performance
improvement is negligible.
Send a SIGUSR1 to the server ( eg kill -USR1 `pidof Xephyr` ) to
toggle the debugging mode. In this mode red rectangles are painted to
screen areas getting painted before painting the actual content. The
delay between this can be altered by setting a XEPHYR_PAUSE env var to
a value in microseconds.
Caveats
=======
- Depth is limited to being the same as the host.
*Update* As of 8/11/2004. Xephyr can now do 8bpp & 16bpp
on 24bpp host.
- Rotated displays are currently updated via full blits. This
is slower than a normal oprientated display. Debug mode will
therefore not be of much use rotated.
- The '-host-cursor' cursor is static in its appearance.
- The build gets a warning about 'nanosleep'. I think the various '-D'
build flags are causing this. I haven't figured as yet how to work
around it. It doesn't appear to break anything however.
- Keyboard handling is basic but works.
- Mouse button 5 probably won't work.
Matthew Allum <mallum@o-hand.com> 2004