Commit Graph

86 Commits

Author SHA1 Message Date
Enrico Weigelt, metux IT consult 43dd9e5f43 dix: clean up MakeWindowOptional() calls and add alloc fault checks
a) no need to checking for win->optional == NULL before calling
   MakeWindowOptional(), because it checks itself
   (except some cases where it's presence has it's own semantics,
   or prevent unnecessary allocations)
b) lots of call sites didn't check for allocation failure.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
2025-06-12 17:21:48 +02:00
Enrico Weigelt, metux IT consult 8966b04224 dix: unexport MakeWindowOptional()
Really internal, should not be used by drivers.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
2025-06-12 17:21:48 +02:00
Enrico Weigelt, metux IT consult 3c028a8cc0 miext: move over extinit_priv.h from include
Since most of the extension init logic (and on/off switches for them)
is driven from miext, this seems the appropriate place for the header.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
2025-06-12 17:21:46 +02:00
Enrico Weigelt, metux IT consult 535a110c60 Xext: clean up including panoramix headers
* 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>
2025-06-12 17:21:43 +02:00
Enrico Weigelt, metux IT consult c96901a85a Xext: use calloc() instead of malloc()
Using calloc() instead of malloc() as preventive measure, so there
never can be any hidden bugs or leaks due uninitialized memory.

The extra cost of using this compiler intrinsic should be practically
impossible to measure - in many cases a good compiler can even deduce
if certain areas really don't need to be zero'd (because they're written
to right after allocation) and create more efficient machine code.

The code pathes in question are pretty cold anyways, so it's probably
not worth even thinking about potential extra runtime costs.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
2025-06-12 16:48:11 +02:00
Enrico Weigelt, metux IT consult c4642f2632 Xext: shape: fix warning on possible NULL dereference
Try not to rely on deep black magic of calloc(), instead skip the whole
part of nrects is zero.

| ../Xext/shape.c: In function ‘ProcShapeGetRectangles’:
| ../Xext/shape.c:995:24: warning: dereference of possibly-NULL ‘rects’ [CWE-690] [-Wanalyzer-possible-null-dereference]
|   995 |             rects[i].x = box->x1;
|       |             ~~~~~~~~~~~^~~~~~~~~

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
2025-06-12 16:32:58 +02:00
Enrico Weigelt, metux IT consult 25f50e2cc5 panoramix: replace FOR_NSCREENS() by FOR_NSCREENS_BACKWARD(i)
FOR_NSCREENS() is just alias for FOR_NSCREENS_BACKWARD(). In many cases
it really matters that we're going backwards and the last iteration visited
the screen #0, and that one is panoramix-wrapped.

Thus directly calling FOR_NSCREENS_BACKWARD() here and dropping the alias.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
2025-06-12 16:24:18 +02:00
Enrico Weigelt, metux IT consult 356e18dcc6 os: move out extension disable flags to corresponing extensions
The OS abstraction isn't really the right place for those flags,
they are're probably better off in their corresponding extensions.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1519>
2025-02-07 12:00:53 +01:00
Enrico Weigelt, metux IT consult a7bdfdb3b5 Xext: shape: drop now obsolete swap procs
Several SProc's have become no-ops, just calling the actual Proc's,
so we can get rid of them entirely.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1639>
2025-02-06 22:28:52 +00:00
Enrico Weigelt, metux IT consult a105c1f7a9 Xext: shape: drop swapping request length fields
The request struct's length fields aren't used anymore - we have the
client->req_len field instead, which also is bigreq-compatible.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1639>
2025-02-06 22:28:50 +00:00
Enrico Weigelt, metux IT consult dab1299745 Xext: shape: fix length checking with bigreq
The authorative source of the request frame size is client->req_len,
especially with big requests larger than 2^18 bytes.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1639>
2025-02-06 22:28:48 +00:00
Enrico Weigelt, metux IT consult a57db845bb Xext: shape: clean up Xinerama dispatch
Simplify the dispatching by moving the branching between Xinerama
vs. single screen into the actual request handlers.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1598>
2025-02-06 21:08:13 +00:00
Enrico Weigelt, metux IT consult fb696a7d7b rename old symbol PANORAMIX to XINERAMA
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>
2025-02-06 15:51:27 +00:00
Enrico Weigelt, metux IT consult a917f6a8a8 drop obsolete HAVE_DIX_CONFIG_H
The symbol controls whether to include dix-config.h, and it's always set,
thus we don't need it (and dozens of ifdef's) anymore.

This commit only removes them from our own source files, where we can
guarantee that dix-config.h is present - leaving the (potentially exported)
headers untouched.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
2024-10-10 13:38:31 +00:00
Enrico Weigelt, metux IT consult 33350ef8ff include: move private definitions out of extinit.h
Public server module API shouldn't be clobbered with private definitions,
thus move them out to extinit_priv.h.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1289>
2024-04-30 00:47:38 +00:00
Enrico Weigelt, metux IT consult 85d4bd0dba rename remaining RT_* defines to X11_RESTYPE_*
Since we already had to rename some of them, in order to fix name clashes
on win32, it's now time to rename all the remaining ones.

The old ones are still present as define's to the new ones, just for
backwards compatibility.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1355>
2024-04-15 19:00:47 -07:00
Enrico Weigelt, metux IT consult 232cad9ec3 prevent name clash on Windows w/ RT_* defines
Windows' native headers using some our RT_* define's names for other things.
Since the naming isn't very nice anyways, introducing some new ones
(X11_RESTYPE_NONE, X11_RESTYPE_FONT, X11_RESTYPE_CURSOR) and define the old
ones as an alias to them, in case some out-of-tree code still uses them.

With thins change, we don't need to be so extremely careful about include
ordering and have explicit #undef's in order to prevent name clashes on
Win32 targets.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1355>
2024-04-15 18:59:23 -07:00
Enrico Weigelt, metux IT consult d444cd4237 dix: unexport some lookup functions
These aren't used by any drivers, so no need to export them.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1380>
2024-04-15 18:11:57 -07:00
Enrico Weigelt, metux IT consult 9a8e6c5bfd dix: unexport VerifyRectOrder
Not used by any driver, so no need to export it.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1365>
2024-04-15 23:10:31 +00:00
Adam Jackson dc7ceda90f dispatch: Mark swapped dispatch as _X_COLD
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>
2017-03-01 10:16:20 -05:00
Adam Jackson 137ac094e7 dix: Push UpdateCurrentTimeIf down out of the main loop
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>
2016-05-04 10:58:01 -04:00
Alan Coopersmith 1c56ac63c0 Convert top level extensions to new *allocarray functions
v2: remove now useless parentheses

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2015-04-21 16:57:08 -07:00
Keith Packard 60014a4a98 Replace 'pointer' type with 'void *'
This lets us stop using the 'pointer' typedef in Xdefs.h as 'pointer'
is used throughout the X server for other things, and having duplicate
names generates compiler warnings.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2014-01-12 10:24:11 -08:00
Daniel Stone a1d41e311c Move extension initialisation prototypes into extinit.h
Create extinit.h (and xf86Extensions.h, for Xorg-specific extensions) to
hold all our extension initialisation prototypes, rather than
duplicating them everywhere.

Signed-off-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
2012-07-09 23:06:41 -07:00
Alan Coopersmith 9805cedf7b Use C99 designated initializers in extension Events
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Daniel Stone <daniel@fooishbar.org>
2012-07-09 22:52:30 -07:00
Alan Coopersmith 6a721e3af5 Use C99 designated initializers in Xext Replies
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Daniel Stone <daniel@fooishbar.org>
2012-07-09 19:58:30 -07:00
Alan Coopersmith 789d64e19a Remove unneccesary casts from WriteToClient calls
Casting return to (void) was used to tell lint that you intended
to ignore the return value, so it didn't warn you about it.

Casting the third argument to (char *) was used as the most generic
pointer type in the days before compilers supported C89 (void *)
(except for a couple places it's used for byte-sized pointer math).

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Daniel Stone <daniel@fooishbar.org>
2012-07-09 19:12:56 -07:00
Keith Packard 9838b7032e Introduce a consistent coding style
This is strictly the application of the script 'x-indent-all.sh'
from util/modular. Compared to the patch that Daniel posted in
January, I've added a few indent flags:

	-bap
	-psl
	-T PrivatePtr
	-T pmWait
	-T _XFUNCPROTOBEGIN
	-T _XFUNCPROTOEND
	-T _X_EXPORT

The typedefs were needed to make the output of sdksyms.sh match the
previous output, otherwise, the code is formatted badly enough that
sdksyms.sh generates incorrect output.

The generated code was compared with the previous version and found to
be essentially identical -- "assert" line numbers and BUILD_TIME were
the only differences found.

The comparison was done with this script:

dir1=$1
dir2=$2

for dir in $dir1 $dir2; do
	(cd $dir && find . -name '*.o' | while read file; do
		dir=`dirname $file`
		base=`basename $file .o`
		dump=$dir/$base.dump
		objdump -d $file > $dump
	done)
done

find $dir1 -name '*.dump' | while read dump; do
	otherdump=`echo $dump | sed "s;$dir1;$dir2;"`
	diff -u $dump $otherdump
done

Signed-off-by: Keith Packard <keithp@keithp.com>
Acked-by: Daniel Stone <daniel@fooishbar.org>
Acked-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2012-03-21 13:54:42 -07:00
Matt Turner 2c7c520cfe Use internal temp variable for swap macros
Also, fix whitespace, mainly around
	swaps(&rep.sequenceNumber)

Reviewed-by: Peter Harris <pharris@opentext.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
2011-09-21 17:12:04 -04:00
Tiago Vignatti cbd4d5dbb7 xserver: delete pervasively use of DISPATCH_PROC
Some functions had to be moved around due some missing static definitions.
Another minor clean up like inexistent function declarations and etc were made
also.

Part of this patch was cooked using:
sed -i -e '/static DISPATCH_PROC*.*;/d' `git ls-files`

Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Reviewed-by: Mikhail Gusarov <dottedmag@dottedmag.net>
2010-09-28 16:45:05 +03:00
Mikhail Gusarov 7287ef9e6c Remove unnecessary parentheses around return values in functions
This patch was generated by the following Perl code:

perl -i -pe 's/([^_])return\s*\(\s*([^(]+?)\s*\)s*;(\s+(\n))?/$1return $2;$4/g;'

Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
2010-06-10 06:42:42 -07:00
Jamey Sharp a0fe6987b5 Clean up after removal of screen parameters from region macros.
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
2010-06-05 22:07:21 -07:00
Keith Packard 2dc138922b Rename region macros to eliminate screen argument
This is a combination of a huge mechanical patch and a few small
fixups required to finish the job. They were reviewed separately, but
because the server does not build without both pieces, I've merged
them together at this time.

The mechanical changes were performed by running the included
'fix-region' script over the whole tree:

$ git ls-files | grep -v '^fix-' | xargs ./fix-region

And then, the white space errors in the resulting patch were fixed
using the provided fix-patch-whitespace script.

$ sh ./fix-patch-whitespace

Thanks to Jamey Sharp for the mighty fine sed-generating sed script.

The hand-done changes involve removing functions from dix/region.c
that duplicate inline functions in include/regionstr.h, along with
their declarations in regionstr.h, mi.h and mispans.h.

Reviewed-by: Jamey Sharp <jamey@minilop.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
2010-06-05 18:59:00 -07:00
Pierre-Loup A. Griffais 643cb6e87c Only deal with input code when changing the input shape.
Propagate the shape kind all the way to SetShape to avoid performing non-input
operations such as revalidating the tree and generating exposures when only
changing a window's input shape.

Signed-off-by: Pierre-Loup A. Griffais <pgriffais@nvidia.com>
Acked-by: Aaron Plattner<aplattner@nvidia.com>
Reviewed-by: Daniel Stone<daniel@fooishbar.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
2010-06-02 21:11:31 -07:00
Jamey Sharp c38552d115 Add typed resource-lookup errors for non-core resource types.
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2010-05-19 12:32:48 -07:00
Jamey Sharp e291c56182 Return an appropriately-typed error from dixLookupResourceByType.
Rather than always returning BadValue, associate an error status like
BadWindow with a resource type like RT_WINDOW, and return the
appropriate one for the requested type.

This patch only touches the core protocol resource types. Others still
return BadValue and need to be mapped appropriately.

dixLookupResourceByType can now return BadImplementation, if the caller
asked for a resource type that has not been allocated in the server.

Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2010-05-19 12:32:48 -07:00
Jamey Sharp 8033fb6c97 Set event sequence number in WriteEventsToClient instead of at callers.
TryClientEvents already did this; this commit just moves the assignment
one level down so that no event source has to worry about sequence
numbers.

...No event source, that is, except XKB, which inexplicably calls
WriteToClient directly for several events.

Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2010-05-19 12:32:34 -07:00
Jamey Sharp 4b9600a416 Make WriteEventsToClient/WriteToClient no-op on fake or dead clients.
This matches the test in TryClientEvents, and is a superset of tests
done by the callers of these functions. The consequence of forgetting
these tests is a server crash, so they're always desirable. In my
opinion, it's better to not require the callers to remember to do these
checks.

For callers that don't do very much work before calling WriteToClient or
WriteEventsToClient, I've removed the redundant checks.

hw/xquartz/xpr/appledri.c has an interesting case: While its check for
"client == NULL" appears redundant with the test in WriteEventsToClient,
it dereferences client to get the sequence number.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=27497
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2010-05-19 12:32:34 -07:00
Jamey Sharp 92ed75ac59 Eliminate boilerplate around client->noClientException.
Just let Dispatch() check for a noClientException, rather than making
every single dispatch procedure take care of it.

Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
2010-05-13 17:14:07 -07:00
Mikhail Gusarov 3f3ff971ec Replace X-allocation functions with their C89 counterparts
The only remaining X-functions used in server are XNF*, the rest is converted to
plain alloc/calloc/realloc/free/strdup.

X* functions are still exported from server and x* macros are still defined in
header file, so both ABI and API are not affected by this change.

Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2010-05-13 00:22:37 +07:00
Jamey Sharp 7e573b5ccd Kill unused/useless macros in panoramiX.h: BREAK_IF, IF_RETURN, FORCE_ROOT
This header doesn't seem to be used outside the server tree, so I don't
think anything was depending on these except what I've fixed in this
patch.

FORCE_ROOT is not used anywhere, and never has been in all the history
that's in git. ajax removed its FORCE_WIN and FORCE_CMAP companions
three years ago, in 04b87d6dfa.

BREAK_IF and IF_RETURN expanded to exactly the keywords in their names,
which is silly. They were rarely used and served only to make callers
inconsistent with the idioms used elsewhere in the server.

Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2010-04-26 19:19:02 -07:00
Alan Coopersmith 895f40792a Add type name argument to CreateNewResourceType
Convert all calls of CreateNewResourceType to pass name argument

Breaks DIX ABI.

ABI versions bumped:

Signed-off-by: Alan Coopersmith <alan.coopersmith@sun.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2009-12-18 17:44:12 -08:00
Alan Coopersmith a11c58fa0c Ensure all resource types created have names registered
Calls RegisterResourceName to record the type name for
use by X-Resource, XACE/SELinux/XTsol, and DTrace.

Signed-off-by: Alan Coopersmith <alan.coopersmith@sun.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
2009-12-18 16:51:45 -08:00
Peter Hutterer 55747d256d input: define server-supported protocol versions in one single file.
include/protocol-versions.h specifies each extension version as supported by
the server and sent back on the wire to the client.

This fixes up several issues with the server potentially reporting a higher
version of the protocol if recompiled against a newer version of the
protocol.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Rémi Cardona <remi@gentoo.org>
Acked-by: Julien Cristau <jcristau@debian.org>
2009-09-21 21:47:35 +10:00
Peter Hutterer d3f6b43a24 Update to xextproto 7.0.99.1.
xextproto had Xlib client headers moved into libXext.
Protocol header files are named fooproto.h, header files with constants
foo.h or fooconst.h where foo.h was already in use for client-side headers.
2009-07-15 17:00:05 +10:00
Peter Hutterer 7b9e84e320 Xext: switch to byte counting functions
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2009-07-14 10:14:01 +10:00
Eamon Walsh 57aff88c7d Fix most remaining deprecated resource lookups.
Callsites updated to use dixLookupResourceBy{Type,Class}.
TODO: Audit access modes to make sure they reflect the usage.
2009-04-29 01:04:37 -04:00
Keith Packard f8dd80d13b Replace dixLookupResource by dixLookupResourceBy{Type,Class}
dixLookupResource attempted to automatically detect whether the caller
wanted a lookup by-type or by-class, unfortunately, it guessed wrong for
RT_NONE. Instead of trying to make the guess better, this patch just reverts
the unification and creates separate functions for each operation.
2009-03-09 13:08:09 -07:00
Peter Åstrand ddb8d8945d xserver: Avoid sending uninitialized padding data over the network
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2009-02-16 13:28:38 +10:00
Peter Hutterer faeb18eb7e Xext: rename shape's EventType to ShapeEventType to avoid name clashing.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2009-02-03 08:51:11 +10:00