Right now, extension specific actions on window positioning are implemented
by wrapping the ScreenRec's PositionWindow() proc pointer: the extensions are
storing the original pointer in their private data and putting in their own one.
On each call, their proc restores the original one, calls it, and switches back
again. When multiple extensions doing so, they're forming a kind of daisy chain.
(the same is done for lots of other procs)
While that approach is looking nice and elegant on the drawing board, it's
complicated, dangerous like a chainsaw and makes debugging hard, leading to
pretty blurred API borders.
This commit introduces a simple approach for letting extension hook into the
window positioning path safely, w/o having to care much about side effects
with the call chain. Extensions now can simply register their hook proc
(and an opaque pointer) and get called back - w/o ever having to mess with
the ScreenRec's internal structures. These hooks are called before the original
vector (usually handled by DDX/screen driver directly) is called.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Wrapping ScreenRec's function pointers is problematic for many reasons, so
use the new window destructor hook instead.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Only key difference that calloc(), in contrast to rellocarray(),
is zero-initializing. The overhead is hard to measure on today's
machines, and it's safer programming practise to always allocate
zero-initialized, so one can't forget to do it explicitly.
Cocci rule:
@@
expression COUNT;
expression LEN;
@@
- xallocarray(COUNT,LEN)
+ calloc(COUNT,LEN)
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
* use their actual path instead of relying this to be in compiler's
include path list.
* no need to do it only conditionally, no #ifdef needed
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
It's last users gone about 15 years ago with commit
a715de7f11, so no need
to keep it around any longer.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
micmap.c is the only consumer of these, so move them into there,
instead of maintaining them in the public API w/o any practical need.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
This .c file is the only consumer of that define, so move it
there instead of carrying it around in public API.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Not used by any external drivers, so no need to keep it public.
Also add some type-safety by implementing it as static inline function.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
* not using anything from colormapst.h
* but several other includes have been missing (consumers had to
include them separately before that file)
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Already in place for some functions, let's add it to most others.
The only function missing is miPointerSetPosition() which needs to
return the ScreenPtr and that one is unclear if we don't have a screen -
returning NULL will crash the caller(s) so let's wait for something to
trigger this bug before we try to fix it wrongly.
Related to #1782
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1771>
If a device is disabled, its master device is forcibly reset to NULL but
unlike a floating device it doesn't have a sprite allocated. Calling
miPointerGetPosition for a disabled device thus crashes.
Avoid this by returning 0/0 for any device without a miPointer.
This is a quick fix only, a proper fix for this issue is rather more
involved.
Closes#1782
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1771>
Xrdp project request exporting this function again, because (unlike the
usual xf86-video-* drivers) they need their own custom cursor handling:
RDP is designed to draw cursors on client side.
Also documenting what the function does.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1787>
This used to be part of public API, but no (known) driver ever
using it, nor any exported functions left. The only internal consumer
(mioverlay.c) also gone now, so it's time to drop this file.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1503>
The DDX'es sometimes need to disable certain extensions. Instead of complex
include cascades with ifdef'ed ddx-specific include from dix code, it's
more clean to add some clear and explicit knobs set by the DDX'es individual
meson.build.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1401>
PANORAMIX was the original working title of the extension, before it became
official standard. Just nobody cared about fixing the symbols to the official
naming.
For backwards compatibility with drivers, the old PANORAMIX symbol will
still be set.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1258>
