When compiling with link time optimization, GCC thinks it's discovered
undefined behavior:
events.c: In function 'XineramaConfineCursorToWindow':
events.c:609:13: warning: iteration 2147483647 invokes undefined behavior [-Waggressive-loop-optimizations]
events.c:609:11: note: within this loop
events.c:605:49: warning: array subscript -1 is below array bounds of 'struct _Window *[16]' [-Warray-bounds]
events.c:606:31: warning: array subscript -1 is below array bounds of 'struct _Screen *[16]' [-Warray-bounds]
events.c:610:39: warning: array subscript -2 is below array bounds of 'struct _Screen *[16]' [-Warray-bounds]
events.c:617:38: warning: array subscript -2 is below array bounds of 'struct _Window *[16]' [-Warray-bounds]
events.c:619:35: warning: array subscript -2 is below array bounds of 'struct _Screen *[16]' [-Warray-bounds]
This results from
i = PanoramiXNumScreens - 1;
RegionCopy(&pSprite->Reg1, &pSprite->windows[i]->borderSize);
off_x = screenInfo.screens[i]->x;
off_y = screenInfo.screens[i]->y;
where GCC believes that PanoramiXNumScreens might be 0. Unfortunately
GCC is just smart enough to be an annoyance because this case is not
actually possible: XineramaConfineCursorToWindow() is only called when
noPanoramiXExtension is false, and if noPanoramiXExtension is false then
PanoramiXNumScreens must be >1 (see PanoramiXExtensionInit()).
So, add an assert(!noPanoramiXExtension), which to my surprise provides
GCC with information even in release builds and lets GCC understand that
the code is not doing anything that is undefined behavior.
I chose this solution instead of the proposed assert(i >= 0) because the
same pattern occurs in CheckVirtualMotion() but is inside an
'if (!noPanoramiXExtension)' and does not generate any warnings.
Fixes: xorg/xserver#590
Signed-off-by: Matt Turner <mattst88@gmail.com>
Separate each statement of the form "assert(a && b);" into "assert(a);"
and "assert(b);" for more precise diagnostics, except for this clever
use in drmmode_display.c where it was used to pass a hint to developers:
assert(num_infos <= 32 && "update return type");
We hide CWBackingStore from the screen hook if nothing's actually
changing, which means compChangeWindowAttributes no longer needs to
compare the requested state with the present one.
Terms:
dev->last.valuator[] is the last value given to us by the driver
dev->valuator.axisVal[] is the last value sent to the client
dev->last.scroll[] is the abs value of the scroll axis as given by the driver,
used for button emulation calculation (and the remainder)
This function updates the device's last.valuator state based on the current
master axis state. This way, relative motion continues fluidly when switching
between devices. Before mouse 2 comes into effect, it's valuator state is
updated to wherever the pointer currently is so the relative event applies on
top of that.
This can only work for x/y axes, all other axes aren't guaranteed to have the
same meaning and/or may not be present:
- xtest device: no valuator 2
- mouse: valuator 2 is horizontal scroll axis
- tablet: valuator 2 is pressure
Scaling the current value from the pressure range into the range for
horizontal scrolling makes no sense. And it causes scroll jumps:
- scroll down, last.valuator == axisVal == 20
- xdotool click 1, the XTest device doesn't have that valuator
- scroll up
- updateSlaveDeviceCoords reset last.valuator to 0 (axisVal == 20)
- DeviceClassesChangedEvent includes value 20 for the axis
- event is processed, last.value changes from 0 to -1
- axisVal is updated to -1, causing a jump of -21
The same applies when we switch from tablet to mouse wheel if the pressure
value is 0 on proximity out (basically guaranteed). So let's drop this code
altogether and only leave the scaling for the relative x/y motion.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
The `LimitClient` is set once and for all at startup, whereas the
function `ResourceClientBits()` which returns the client field offset
within the XID based on the value of `LimitClient` can be called
repeatedly.
Small optimization, cache the result of `ilog2()`, that saves running
the same loop over and over each time `ResourceClientBits()` is called.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
If the server resets, most client workqueues are cleaned up as the
clients are killed.
The one exception is the server's client, which is exempt from
the killing spree.
If that client has a queued work procedure active, it won't get
cleared on reset.
This commit ensures it gets cleared too.
c67f2eac56 ("dix: always send focus event on grab change") made dix
always sent events when it's a NotifyGrab or NotifyUngrab, even if
from == to, because 'from' can just come from a previous XSetInputFocus
call.
However, when an application calls XGrabKeyboard several times on
the same window, we are now sending spurious FocusOut+FocusIn with
NotifyGrab, even if the grab does not actually change. This makes screen
readers for blind people spuriously emit activity events which disturb
screen reading workflow when e.g. switching between menus.
This commit avoids calling DoFocusEvents in that precise case, i.e. when
oldWin is a previous grab and the new grab is the same window.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Adam Jackson <ajax@redhat.com>
The screensaver can regularly move its window to random offsets. It should
use the ConfigureWindow function instead of calling the Screen's MoveWindow
directly. Some MoveWindow implementations, such as compMoveWindow, rely on
Screen's ConfigNotify being called first as it happens in ConfigureWindow.
Reviewed-by: Adam Jackson <ajax@redhat.com>
This reverts commit b45c74f0f2.
It broke the cursor in other games. Apparently those use cursor data
with premultiplied alpha, but with some pixels having r/g/b values
larger than the alpha value (which corresponds to original r/g/b
values > 1.0), triggering the workaround.
Seems the cure turned out worse than the disease, so revert.
Bugzilla: https://bugs.freedesktop.org/108650
Turns out some apps (e.g. the Civilization VI game) use
non-premultiplied cursor data which doesn't have any pixels with 0 alpha
but non-0 non-alpha, but can still result in visual artifacts.
This uses the method suggested by Kamil in
https://bugs.freedesktop.org/92309#c19: check for pixels where any
colour component value is larger than the alpha value, which isn't
possible with premultiplied alpha.
There can still be non-premultiplied data which won't be caught by this,
but that should result in slightly incorrect colours and/or blending at
the worst, not wildly incorrect colours such as shown in the bug report
below.
Bugzilla: https://bugs.freedesktop.org/108355
Suggested-by: Kamil Paral <kamil.paral@gmail.com>
This hasn't done anything besides return TRUE in a long long time.
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Adam Jackson <ajax@redhat.com>
This variable was no longer being read anywhere. MAXCLIENTS the macro is
the compile-time maximum limit, LIMITCLIENTS the macro is the default
limit, LimitClients the variable is the limit for the current server.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Coverity complains about a use after free in here after the
freeing, I can't follow the linked list so well, but whot
says the device can only be on one list once, so break should
fix it.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Not sure what if anything calls XSetDeviceModifierMapping() but this would've
failed all the time. check_modmap_change() returns Success but we were
treating it like a boolean. Fix this.
Reported-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
GLX registers an extension before we know if there are any screens that
can actually do it. It's inconvenient to shrink the extension list, so
instead allow the extension to simply zero out its base opcode to
indicate that it needed to panic and disable itself.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Focus events are useless when 'from' and 'to' are the same. But when
this is the result of a (Un)GrabKeyboard request, we should always send
them, including when the window manager had previously used XSetInputFocus
to specify the focus on a window which happens to be now taking a grab.
This is notably needed for window manager using XI to always get keyboard
events even during grabs, so they can determine exactly when grabbing is
active.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
../dix/getevents.c: In function ‘transformAbsolute’:
../dix/getevents.c:1195:28: warning: ‘oy’ may be used uninitialized in this function [-Wmaybe-uninitialized]
struct pixman_f_vector p = {.v = {*x, *y, 1} };
^
../dix/getevents.c🔢22: note: ‘oy’ was declared here
double x, y, ox, oy;
^~
This one is truly special. Even though both ox and oy are set and read
along the same paths, only oy is marked for this warning! Initializing
just oy = 0.0 fixes it entirely, but let's not make a weird thing
weirder.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Acked-by: Keith Packard <keithp@keithp.com>
PtrCtrl really makes sense for relative pointing device only, absolute
devices such as touch devices do not have any PtrCtrl set.
In some cases, if the client issues a XGetPointerControl() immediatlely
after a ChangeMasterDeviceClasses() copied the touch device to the VCP,
a NULL pointer dereference will occur leading to a crash of Xwayland.
Check whether the PtrCtrl is not NULL in ProcGetPointerControl() and
return the default control values otherwise, to avoid the NULL pointer
dereference.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1519533
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Roundhouse kick replacing the various (sizeof(foo)/sizeof(foo[0])) with
the ARRAY_SIZE macro from dix.h when possible. A semantic patch for
coccinelle has been used first. Additionally, a few macros have been
inlined as they had only one or two users.
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This allows making the master screen's pixmap_dirty_list entries
explicitly reflect that we're now tracking the root window instead of
the screen pixmap, in order to allow Present page flipping on master
outputs while there are active slave outputs.
Define HAS_DIRTYTRACKING_DRAWABLE_SRC for drivers to check, but leave
HAS_DIRTYTRACKING_ROTATION defined as well to make things slightly
easier for drivers.
Reviewed-by: Adam Jackson <ajax@redhat.com>
This appears to be essentially unused. The only known client-side
library for the SELinux extension is xcb, which does not look for the
name "Flask". The "SGI-GLX" alias for GLX appears to be a bit of
superstition at this point, NVIDIA's driver does not expose it and Mesa
does not check for it.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Acked-by: Keith Packard <keithp@keithp.com>
The SendEvent request holds xEvent which is exactly 32 bytes long, no more,
no less. Both ProcSendEvent and SProcSendEvent verify that the received data
exactly match the request size. However nothing stops the client from passing
in event with xEvent::type = GenericEvent and any value of
xGenericEvent::length.
In the case of ProcSendEvent, the event will be eventually passed to
WriteEventsToClient which will see that it is Generic event and copy the
arbitrary length from the receive buffer (and possibly past it) and send it to
the other client. This allows clients to copy unitialized heap memory out of X
server or to crash it.
In case of SProcSendEvent, it will attempt to swap the incoming event by
calling a swapping function from the EventSwapVector array. The swapped event
is written to target buffer, which in this case is local xEvent variable. The
xEvent variable is 32 bytes long, but the swapping functions for GenericEvents
expect that the target buffer has size matching the size of the source
GenericEvent. This allows clients to cause stack buffer overflows.
Signed-off-by: Michal Srb <msrb@suse.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
If the root window borderClip region is null, the PointInWindowIsVisible()
check fails if pointer warping is attempted on the root window, making
the warping operation bail out early.
Assume coordinates always lay inside the root window for this case,
the actual position will be clamped later within screen coordinates anyway.
Signed-off-by: Carlos Garnacho <carlosg@gnome.org>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Delay removing the client from these two queues until all potential
I/O has completed in case we mark the client as ready for reading or
with pending output during the close operation.
Bugzilla: https://bugs.freedesktop.org/100957
Signed-off-by: Keith Packard <keithp@keithp.com>
Tested-by: Nick Sarnie <commendsarnex@gmail.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
This is a work in progress that builds Xvfb, Xephyr, Xwayland, Xnest,
and Xdmx so far. The outline of Xquartz/Xwin support is in tree, but
hasn't been built yet. The unit tests are also not done.
The intent is to build this as a complete replacement for the
autotools system, then eventually replace autotools. meson is faster
to generate the build, faster to run the bulid, shorter to write the
build files in, and less error-prone than autotools.
v2: Fix indentation nits, move version declaration to project(), use
existing meson_options for version-config.h's vendor name/web.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Found when the meson conversion set the symbol to defined, instead of
defined to 1.
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Most of this is a legacy of the old "extmod" design where you could load
_some_ extensions dynamically but only if the server had been built with
support for them in the first place.
Note that since we now only initialize the DPMS extension if at least
one screen supports it, we no longer need DPMSCapableFlag: if it would
be false, we would never read its value.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
None of this is actually wired up to anything, so we can also remove the
devPrivates from the DamageRec. The DamageExtRec is what would need
devPrivates for selinux labeling, in principle.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
This touches everything that ends up in the Xorg binary; the big missing
part is GLX since that's all generated code. Cuts about 14k from the
binary on amd64.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
This will be used by in-server features that need to react to property
changes. The first one will be _XWAYLAND_ALLOW_COMMITS.
Signed-off-by: Adam Jackson <ajax@redhat.com>
[Pekka: add commit message body]
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Instead of just the atom. No functional change.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
The root window, and by extension any damage records referencing it,
may be destroyed before shared pixmaps referencing it, which resulted in
use-after-free / double-free in PixmapStopDirtyTracking.
Fixes: b5b292896f ("prime: Sync shared pixmap from root window instead of screen pixmap")
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
The screen pixmap doesn't receive updates while there's a Present flip
window.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
A client which is attended while a grab is blocking execution of its
requests needs to be placed in the saved_ready_clients list so that it
will get scheduled once the grab terminates. Otherwise, if the client
never sends another request, there is no way for it to be placed in
the ready_clients list.
v2: Wrap comment above mark_client_saved_ready.
Remove test for OS_COMM_IGNORED which will always be true.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99333
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
The custom os/os.O library reuses *.o files of os/libos.la.
The current rule assumes automake puts all the objects into per-target
am__*_la_OBJECTS variable. At least with AC_REPLACE_FUNCS, this no
longer holds (as wanted objects are put into LTLIBOBJS instead).
Depend on automake's result, the *.la library instead, to express demand
of any its dependencies being built.
Should be fixing randomly occuring "undefined reference to `strlcpy'"
errors when linking Xvfb and other DDX-es that could use os.O.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Mihail Konev <k.mvc@ya.ru>
Commits 816015648f and
fee0827a9a made it so that
wl_keyboard::enter doesn't result in X clients getting KeyPress events
while still updating our internal xkb state to be in sync with the
host compositor.
wl_keyboard::leave needs to be handled in the same way as its
semantics from an X client POV should be the same as an X grab getting
triggered, i.e. X clients shouldn't get KeyRelease events for keys
that are still down at that point.
This patch uses LeaveNotify for these events on wl_keyboard::leave and
changes the current use of KeymapNotify to EnterNotify instead just to
keep some symmetry between both cases.
On ProcessDeviceEvent() we still need to deactivate X grabs if needed
for KeyReleases.
Signed-off-by: Rui Matos <tiagomatos@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
I think it is possible that output could get queued to a client during
CloseDownClient. After it is removed from the pending queue, active
grabs are released, the client is awoken if sleeping and any work
queue entries related to the client are processed.
To fix this, move the call removing it from the output_pending chain
until after clientGone has been set and then check clientGone in
output_pending_mark.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1382444
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
[This was originally a workaround for a client-side resource leak:
http://lists.freedesktop.org/archives/xorg-devel/2012-November/034555.html
Obviously that's a broken app, but the performance problem it
illustrates - that walking the linked list ends up burning all your CPU
time - is real enough. - ajax]
v2: Replace with a shorter code sequence which computes the same
results for all but numBits == 7
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Add a valuator mask setter for setting absolute coordinate combined
with unaccelerated motion deltas. This will later be used by Xwayland
to combine a wl_pointer.motion() event with the unaccelerated delta of
a wp_relative_pointer.relative_motion() event.
Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
GetImage is allowed to return window border contents, so don't remove
that from the returned image.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
This allows us to remove darwinEvents_lock() and darwinEvents_unlock()
and remove the serverRunning hack from dix
Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This function will be called when a pointer is grabbed non-root window
set as the 'confineTo'. This will enable the ddx to handle the
confinement their own way.
Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
This new vfunc will be called, if set, after a client has issued a
WarpPointer request. This is necessary for implementing pointer warp
emulation in Xwayland.
Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
pClient does not contain a live value after the transition to lists
https://bugs.freedesktop.org/show_bug.cgi?id=97765
Application Specific Information:
X.Org X Server 1.18.99.1 Build Date: 20160910
=================================================================
==16921==ERROR: AddressSanitizer: global-buffer-overflow on address 0x000108ce3834 at pc 0x000108880766 bp 0x7000045f76c0 sp 0x7000045f76b8
READ of size 4 at 0x000108ce3834 thread T6
#0 0x108880765 in SmartScheduleClient dispatch.c:365
#1 0x10887ecc5 in Dispatch dispatch.c:422
#2 0x1088c05f1 in dix_main main.c:301
#3 0x1082aabba in server_thread quartzStartup.c:66
#4 0x7fffc5f16aaa in _pthread_body (libsystem_pthread.dylib+0x3aaa)
#5 0x7fffc5f169f6 in _pthread_start (libsystem_pthread.dylib+0x39f6)
#6 0x7fffc5f161fc in thread_start (libsystem_pthread.dylib+0x31fc)
Regressed-in: 8f1edf4bd3
Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
This ensures that the deviceProc is never called while the input
thread is processing data from the device.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Currently with PRIME if we detect a secondary GPU,
we switch to using SW cursors, this isn't optimal,
esp for the intel/nvidia combinations, we have
no choice for the USB offload devices.
This patch checks on each slave screen if hw
cursors are enabled, and also calls set cursor
and move cursor on all screens.
Cc: Aaron Plattner <aplattner@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
This is a preparation patch for adding prime hw-cursor support.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Fix a couple of copy-and-paste errors preventing FocusIn grabs from working.
Perhaps the extension version should be bumped though to distinguish between
working and non-working extension versions.
Signed-off-by: Michael Thayer <michael.thayer@oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Make sure the whole event is initialized, instead of leaving the pad
bytes unset.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Eliminates all of the fd_set mangling in the server main thread
v2: Listen for POLLOUT while writes are blocked.
v3: Only mark client not ready on EAGAIN return from read
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This converts the dispatch loop into using a list of ready clients
instead of an array. This changes the WaitForSomething API so that it
notifies DIX when a client becomes ready to read, instead of returning
the set of ready clients.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
The intermediate grabState, "GrabKickout", was used to trigger
dispatch into going back to WaitForSomething after doing a GrabServer
so that the set of ready clients would be recomputed to match what the
server should be processing. As we only process one client per
WaitForSomething call, we will always hit WaitForSomething after
finishing the current client, and so don't need any special case here.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Instead of having scheduling done in two places (one in
WaitForSomething, and the other in SmartScheduleClient), just stick
all of the scheduling in SmartScheduleClient.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This removes the last uses of fd_set from the server interfaces
outside of the OS layer itself.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
With no users of the interface needing the readmask anymore, we can
remove it from the argument passed to these functions.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This new libXfont API eliminates exposing internal X server symbols to
the font library, replacing those with a struct full of the entire API
needed to use that library.
v2: Use libXfont2 instead of libXfont_2
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Some games incorrectly use non-premultiplied ARGB cursor data, presumably
because that's what Windows uses. On some hardware (and with SWcursor),
this breaks areas of the cursor which are supposed to be transparent
(and presumably also translucent areas, but that's less noticeable).
This change checks for pixels with alpha == 0 and any non-alpha component
!= 0. If any such pixel is found, the data is assumed to be
non-premultiplied and fixed up by multiplying the RGB components with the
alpha component.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92309
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
The screen block and wakeup handlers are the only ones which provide a
well known ordering between the wrapping layers; placing these as
close as possible to the server blocking provides a way for the driver
to control the flow of execution correctly.
Switch the shadow code to run in the screen block handler so that it
now occurrs just before the server goes to sleep.
Switch glamor to call down to the driver after it has executed its own
block handler piece, in case the driver needs to perform additional
flushing work after glamor has called glFlush.
These changes ensure that the following modules update the screen in
the correct order:
animated cursors (uses RegisterBlockAndWakeupHandlers dynamically)
composite (dynamic wrapping)
misprite (dynamic wrapping)
shadow (static wrapping)
glamor (static wrapping)
driver (static wrapping)
It looks like there's still a bit of confusion between composite and
misprite; if composite updates after misprite, then it's possible
you'd exit the block handler chain with the cursor left hidden. To fix
that, misprite should be wrapping during ScreenInit time and not
unwrapping. And composite might as well join in that fun, just to make
things consistent.
[v2] Unwrap BlockHandler in shadowCloseScreen (ajax)
[v3] ephyr: Use screen block handler for flushing changes
ephyr needs to make sure it calls glXSwapBuffers after glamor finishes
its rendering. As the screen block handler is now called last, we have
to use that instead of a registered block/wakeup handler to make sure
the GL rendering is done before we copy it to the front buffer.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
A single provider can be both a offload and source slave at the same time,
the use of seperate lists breaks in this case e.g. :
xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x7b cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 3 outputs: 2 associated providers: 0 name:modesetting
Provider 1: id: 0x46 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 2 outputs: 5 associated providers: 0 name:modesetting
xrandr --setprovideroutputsource 1 0x7b
xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x7b cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 3 outputs: 2 associated providers: 1 name:modesetting
Provider 1: id: 0x46 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 2 outputs: 5 associated providers: 1 name:modesetting
xrandr --setprovideroffloadsink 1 0x7b
xrandr --listproviders
Providers: number : 3
Provider 0: id: 0x7b cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 3 outputs: 2 associated providers: 2 name:modesetting
Provider 1: id: 0x46 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 2 outputs: 5 associated providers: 2 name:modesetting
Provider 2: id: 0x46 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 2 outputs: 5 associated providers: 2 name:modesetting
Not good. The problem is that the provider with id 0x46 now is on both
the output_slave_list and the offload_slave_list of the master screen.
This commit fixes this by unifying all 3 lists into a single slaves list.
Note that this does change the struct _Screen definition, so this is an ABI
break. I do not expect any of the drivers to actually use the removed / changed
fields so a recompile should suffice.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
There are no in-tree consumers of the audit hooks, and they are in any
case redundant with the dtrace dispatch hooks. Neither is there any
in-tree user of the core request dispatch hook. The extension hook is
only used for non-default security cases, but in the absence of LTO we
always have to take the function call into XaceHookDispatch to find out
that there's no callback registered.
Cc: Eamon Walsh <ewalsh@tycho.nsa.gov>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
This is an ABI break, in that we now pass NULL to a function that hasn't
accepted it before.
Alex Goins had a different patch for this but it wasn't symmetrical, it
freed something in a very different place than it allocated it, this
attempts to retain symmetry in the releasing of the backing bo.
v2: use a new toplevel API, though it still passes NULL to something
that wasn't expecting it.
v3: pass -1 instead of 0.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Alex Goins <agoins at nvidia.com>
In patch 137ac094e7, Adam moved an
expensive call to UpdateCurrentTime out of the main dispatch
loop. That's a good change as the original fix from Chase was a bit
expensive. However, it breaks grab processing and so a couple of the
calls to UpdateCurrenTime need to be removed.
Input event processing can generate a stream of events; a button press
that activates a grab will send a press followed by a sequence of
enter/leave events. All of these should have the same time stamp on
the wire as they occur at the 'same' time.
More importantly, the grab time recorded in the device is pulled from
currentTime after all of the events are delivered, so if currentTime
doesn't match the time in the device event, then future grab
modifications will fail as the time marked in the device will be
'later' than the grab time known to the client (which is defined as
the timestamp from the activating input event).
A bit of history here -- it used to be that currentTime was driven
*entirely* by input events; those timestamps didn't even have to be
related to the system time in any way. Then we started doing ICCCM
stuff and people got confused when PropertyNotify events would have
the same timestamp even when delivered minutes apart because no input
events were delivered.
We added code in the server to go update the time, but only if no
input events were pending (so that the clock "wouldn't" go
backwards). The only places where this is necessary is in request
processing which may generate an event with a timestamp, and there
only at the very top of the request processing code so that the whole
request would be processed at the 'same time', just like events.
cc: Chase Douglas <chase.douglas@canonical.com>
cc: Peter Hutterer <peter.hutterer@who-t.net>
cc: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
These are local to inputthread.c; the ones in globals.c aren't
declared in any header file.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Now that input is threaded, malloc can be used at event time to resize
the touchpoint buffer as needed.x
v2: Remove "Need to grow the queue means dropping events."
from comment as it no longer applies. (Peter Hutterer)
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
The current SIGIO signal handler method, used at generation of input events,
has a bunch of oddities. This patch introduces an alternative way using a
thread, which is used to select() all input device file descriptors.
A mutex was used to control the access to input structures by the main and input
threads. Two pipes to emit alert events (such hotplug ones) and guarantee the
proper communication between them was also used.
Co-authored-by: Fernando Carrijo <fcarrijo@freedesktop.org>
Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
v2: Fix non-Xorg link. Enable where supported by default.
This also splits out the actual enabling of input threads to
DDX-specific patches which follow
v3: Make the input lock recursive
v4: Use regular RECURSIVE_MUTEXes instead of rolling our own
Respect the --disable-input-thread configuration option by
providing stubs that expose the same API/ABI.
Respond to style comments from Peter Hutterer.
v5: use __func__ in inputthread debug and error mesages.
Respond to style comments from Peter Hutterer.
v6: use AX_PTHREAD instead of inlining pthread tests.
Suggested by Emil Velikov <emil.l.velikov@gmail.com>
v7: Use pthread_sigmask instead of sigprocmask when using threads
Suggested by Adam Jackson <ajax@redhat.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This removes all of the SIGIO handling support used for input
throughout the X server, preparing the way for using threads for input
handling instead.
Places calling OsBlockSIGIO and OsReleaseSIGIO are marked with calls
to stub functions input_lock/input_unlock so that we don't lose this
information.
xfree86 SIGIO support is reworked to use internal versions of
OsBlockSIGIO and OsReleaseSIGIO.
v2: Don't change locking order (Peter Hutterer)
v3: Comment weird && FALSE in xf86Helper.c
Leave errno save/restore in xf86ReadInput
Squash with stub adding patch (Peter Hutterer)
v4: Leave UseSIGIO config parameter so that
existing config files don't break (Peter Hutterer)
v5: Split a couple of independent patch bits out
of kinput.c (Peter Hutterer)
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
This changes XInput 2's propagation of NotifyPointer focus out events to
include the pointer window as well, similar to core events. This fixes
a potential permanent focus in GDK when the focus moves to PointerRoot.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=93539
Signed-off-by: Andrew Comminos <andrew@comminos.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This was added in:
commit 312910b4e3
Author: Chase Douglas <chase.douglas@canonical.com>
Date: Wed Apr 18 11:15:40 2012 -0700
Update currentTime in dispatch loop
Unfortunately this is equivalent to calling GetTimeInMillis() once per
request. In the absolute best case (as on Linux) you're only hitting the
vDSO; on other platforms that's a syscall. Either way it puts a pretty
hard ceiling on request throughput.
Instead, push the call down to the requests that need it; basically,
grab processing and event generation.
Cc: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Adam Jackson <ajax@redhat.com>
-Wlogical-op now tells us:
devices.c:1685:23: warning: logical ‘and’ of equal expressions
Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
This was fine back when valuators were integer. Device
properties are float (not double), so some instances remain.
Signed-off-by: Simon Thum <simon.thum@gmx.de>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This was quite unlikely except in situations where a proper startup
would have been impossible anyway, but since automated checks don't
grade likelyhood just fix it.
Detected by Jeremy Huddleston's clang checks.
Signed-off-by: Simon Thum <simon.thum@gmx.de>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This is a variant of ClientSignal() that signals all clients with an
optional matching sleeping client, function and closure.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
216bdbc735 removed the SetRootClip call in the XWayland output-hotplug
handler when running rootless (e.g. as a part of Weston/Mutter), since
the root window has no storage, so generating exposures will result in
writes to invalid memory.
Unfortunately, preventing the segfault also breaks sprite confinement.
SetRootClip updates winSize and borderSize for the root window, which
when combined with RRScreenSizeChanged calling ScreenRestructured,
generates a new sprite-confinment area to update it to the whole screen.
Removing this call results in the window geometry being reported
correctly, but winSize/borderSize never changing from their values at
startup, i.e. out of sync with the root window geometry / screen
information in the connection info / XRandR.
This patch introduces a hybrid mode, where we update winSize and
borderSize for the root window, enabling sprite confinement to work
correctly, but keep the clip emptied so exposures are never generated.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Tested-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This makes sure that the destination pixmap contents will be fully
initialized. Without this, a PRIME output starts out with garbage.
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Font initialization was split into two stages, the first was to set up
font privates with a call to ResetFontPrivateIndex, then much later
the call to InitFonts to set up all of the FPEs. Doing the full font
initialization before initializing the video drivers means that we can
move the call to ResetFontPrivateIndex inside InitFonts.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
This allows the server to call GetTimeInMillis() after each request is
processed to avoid needing setitimer. -dumbSched now turns off the
setitimer.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Add a new event source type for keypress events synthesised from focus
notifications (e.g. KeymapNotify from the parent server, when running
nested). This is used to keep the keys-down array in sync with the host
server's, without sending actual keypress events to clients.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Adam Jackson
Matt Turner
Adam Richter
Peter Hutterer
Olivier Fourdan
Ray Strode
Samuel Thibault
Michal Srb
Marco Trevisan (Treviño)
Michel Dänzer
Dave Airlie
Eric Anholt
Emil Velikov
Giuseppe Bilotta
Daniel Martin
Nathan Kidd
Jan Beich
Carlos Garnacho
Keith Packard
Mihail Konev
Rui Matos
Peter Harris
Jonas Ådahl
Jeremy Huddleston Sequoia
Michael Thayer
Hans de Goede
Dave Airlie
Andrew Comminos
Simon Thum
Chris Wilson
Daniel Stone