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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>
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fix warning on duplicate typedef:
> ../composite/compositeext_priv.h:11:25: warning: redefinition of typedef 'ScreenPtr' is a C11 feature [-Wtypedef-redefinition]
> typedef struct _Screen *ScreenPtr;
> ^
> ../include/screenint.h:55:25: note: previous definition is here
> typedef struct _Screen *ScreenPtr;
> ^
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1430>
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These aren't called (and suited for being called) by drivers,
thus drop them from the public module API.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1381>
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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>
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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>
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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>
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Move out non-exported stuff from public module header compositeext.h,
into compositeext_priv.h
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1284>
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Make it usable by code outside of the composite layer.
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Fixes leaking the memory it points to.
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ZDI-CAN-19866/CVE-2023-1393
If a client explicitly destroys the compositor overlay window (aka COW),
we would leave a dangling pointer to that window in the CompScreen
structure, which will trigger a use-after-free later.
Make sure to clear the CompScreen pointer to the COW when the latter gets
destroyed explicitly by the client.
This vulnerability was discovered by:
Jan-Niklas Sohn working with Trend Micro Zero Day Initiative
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
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Oracle no longer includes this term in our copyright & license notices.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
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Signed-off-by: Povilas Kanapickas <povilas@radix.lt>
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When building only Xwayland using Meson some files are always installed.
This causes package conflict if Xwayland is built separately from Xorg.
include/xorg/compositeext.h
include/xorg/damage.h
include/xorg/damagestr.h
include/xorg/dbestruct.h
include/xorg/dri3.h
include/xorg/fb.h
include/xorg/fboverlay.h
include/xorg/fbpict.h
include/xorg/fbrop.h
include/xorg/geext.h
include/xorg/geint.h
include/xorg/glyphstr.h
include/xorg/mi.h
include/xorg/micmap.h
include/xorg/micoord.h
include/xorg/migc.h
include/xorg/miline.h
include/xorg/mioverlay.h
include/xorg/mipict.h
include/xorg/mipointer.h
include/xorg/mipointrst.h
include/xorg/mistruct.h
include/xorg/misync.h
include/xorg/misyncfd.h
include/xorg/misyncshm.h
include/xorg/misyncstr.h
include/xorg/mizerarc.h
include/xorg/panoramiX.h
include/xorg/panoramiXsrv.h
include/xorg/picture.h
include/xorg/picturestr.h
include/xorg/present.h
include/xorg/presentext.h
include/xorg/randrstr.h
include/xorg/rrtransform.h
include/xorg/shadow.h
include/xorg/shmint.h
include/xorg/syncsdk.h
include/xorg/vndserver.h
include/xorg/wfbrename.h
include/xorg/xace.h
include/xorg/xacestr.h
include/xorg/xorg-server.h
include/xorg/xvdix.h
include/xorg/xvmcext.h
share/aclocal/xorg-server.m4
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
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Most (but not all) of these were found by using
codespell --builtin clear,rare,usage,informal,code,names
but not everything reported by that was fixed.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
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SourceValidate handles this for us consistently now.
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
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Slightly simplifies the callers since they don't need to check for
non-NULL anymore.
I do extremely hate the workarounds here to suppress misprite taking the
cursor down though. Surely there's a better way.
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
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Consider these two facts:
- You can't rely on resource deletion order
- damageDestroyWindow automatically destroys any damage listener
connected to the doomed window
Now consider a redirected window being destroyed. If the damage
associated with the redirection is destroyed before the window, then
when compFreeClientWindow tries to unredirect the window, the call to
compSetParentPixmap may see that cw->damageRegistered is still true, and
call DamageUnregister(NULL) (because compDestroyDamage already zeroed
out cw->damage), and you get a backtrace that looks like:
#6 <signal handler called>
#7 DamageUnregister (pDamage=0x0) at damage.c:1773 <-----------------
#8 0x000000000051f767 in compSetParentPixmap (pWin=pWin@entry=0x28489c0) at compalloc.c:646
#9 0x000000000051fa01 in compFreeClientWindow (pWin=0x28489c0, id=<optimized out>) at compalloc.c:291
#10 0x000000000051a499 in FreeCompositeClientWindow (value=<optimized out>, ccwid=<optimized out>) at compext.c:74
#11 0x0000000000597932 in doFreeResource (res=0x28494c0, skip=0) at resource.c:880
#12 0x000000000059850e in FreeResource (id=857, skipDeleteFuncType=skipDeleteFuncType@entry=0) at resource.c:910
#13 0x000000000051ee01 in compUnredirectWindow (pClient=0x1f6b4e0, pWin=pWin@entry=0x28489c0, update=update@entry=0) at compalloc.c:336
#14 0x000000000051b723 in compCheckBackingStore (pWin=0x28489c0) at compinit.c:131
#15 compChangeWindowAttributes (pWin=0x28489c0, mask=<optimized out>) at compinit.c:152
#16 0x000000000051d1f9 in compDestroyWindow (pWin=0x28489c0) at compwindow.c:664
#17 0x00000000004d85be in damageDestroyWindow (pWindow=0x28489c0) at damage.c:1570
#18 0x00000000004896f0 in DbeDestroyWindow (pWin=0x28489c0) at dbe.c:1326
#19 0x00000000004d229e in present_destroy_window (window=0x28489c0) at present_screen.c:163
#20 0x000000000059c4e4 in FreeWindowResources (pWin=pWin@entry=0x28489c0) at window.c:1032
#21 0x000000000059f2c6 in DeleteWindow (value=0x28489c0, wid=<optimized out>) at window.c:1101
#22 0x0000000000597932 in doFreeResource (res=0x2843bd0, skip=skip@entry=0) at resource.c:880
#23 0x0000000000598b0c in FreeClientResources (client=client@entry=0x2848560) at resource.c:1146
#24 0x0000000000572e2f in CloseDownClient (client=0x2848560) at dispatch.c:3473
Fix this by zeroing out more of the CompWindowPtr when the damage is
destroyed, so that any further calls into composite will avoid touching
cw->damage.
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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");
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This is only being set, never read.
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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.
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It is currently (ab)using the screen BlockHandler callback to do
this. But this can cause problems with other extension as their
block handlers might have executed before Composite's. And the
operations Composite does might result in them wanting to change
timeouts.
Practically this caused problems for TigerVNC's VNC extension which
failed to send out updates for Composite's screen updates.
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Install missing headers to the SDK directory to allow external modules
to properly build against the SDK. After this commit, the list of files
installed in the SDK include directory is the same as the list of files
installed by the autotools-based build.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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If an implicitly redirected window is unredirected by the reparent
operation, cw will be a stale pointer.
Signed-off-by: Peter Harris <pharris@opentext.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
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If a window that is fully covered by an automatic-redirected descendant
(even implicitly, eg. via BackingStores) is reparented, the automatic
updates could be broken if the new parent is not marked as having
damaged descendants.
Fix this issue by propagating the damagedDescendants flag whenever a
window is reparented.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Peter Harris <pharris@opentext.com>
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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>
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As of ea483af9 we're calling this unconditionally from the GLX code so
the synthetic visual is in a lower select group. If Composite has been
disabled then GetCompScreen() will return NULL, and this would crash.
Rather than force the caller to check first, just always return FALSE if
Composite is disabled (which is correct, since none of the visuals will
be synthetic in that case).
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
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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>
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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>
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Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Adam Jackson <ajax@redhat.com>
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This comment is above compIsAlternateVisual, which used to be the only
thing determining whether implicit redirect was needed. It's not anymore
due to the redirection exception list. That job is now performed by
compImplicitRedirect, whose code is self-explanitory.
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Adam Jackson <ajax@redhat.com>
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When going from border width zero to a non-zero border width, the
Composite extension is informed via the ConfigNotify callback. The
call-chain looks like this: compConfigNotify -> compReallocPixmap ->
compSetPixmap -> TraverseTree -> compSetPixmapVisitWindow. However, at
this time, pWindow->borderWidth was not yet updated. Thus, HasBorder()
is false and the window border will not be repainted.
To fix this, thread the new bw through to the window visitor, and
inspect that rather than HasBorder(). For the other callers of
compSetPixmap the border does not change size, so we can pass
pWin->borderWidth instead.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98499
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
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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>
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The previous change removed the special case that matched resources of
CompositeClientWindowType and walked back from that to the window
pixmap. That was intentional, since that logic was broken anyway. CCWTs
don't map 1:1 to references on the backing pixmap; a window redirected
by multiple clients (say, by the server since it's on the synthetic
visual, and then manually by a compositor) would have a window pixmap
refcount of 1, but would have those bytes accounted twice.
The right thing is to have Composite wrap window accounting, and add the
pixmap bytes once and only once for the redirection reference.
Note that the view from the client can still be non-intuitive in the
face of Composite. xcompmgr, for example, holds _two_ references to
each window pixmap (one each from CompositeNameWindowPixmap and
RenderCreatePicture), so a synthetic-visual window will have its bytes
split 2/3 to xcompmgr and 1/3 to the server-client. Nothing to be done
about that, and at least this way we're not over-accounting.
Acked-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
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Private storage is pre-zeroed by the private system itself.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
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No functional change.
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
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Removes the last cpp conditional on ROOTLESS from dix code.
Reviewed-by: Jasper St. Pierre <jstpierre@mecheye.net>
Signed-off-by: Adam Jackson <ajax@redhat.com>
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v2: remove now useless parentheses
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
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sed -i "s/[ ]\+$//g" **/*.(c|h)
happy reviewing...
git diff -w is an empty diff.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
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GetSpans should flush composition from children to parent, just like
GetImage and SourceValidate. Fortunately no one is likely to have
noticed, since to hit this you're already deep into failure town.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
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Check the current window pixmap to see if it matches the new pixmap
and avoid calling SetWindowPixmap in that case.
x11perf -ucreate highlights an instance where compCreateWindow reassigns
the same Pixmap to the Window. Currently this triggers an expensive
invalidation of the entire window hierachy, making sure that DRI2
clients are kept informed of the handle changes. However, as the backing
Pixmap for the Window is actually unchanged, there is no need to
do anything in this case.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
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Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
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There's not really a good reason for mi to not just call the composite
code directly.
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
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Signed-off-by: Peter Harris <pharris@opentext.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
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This hook allows drivers to be notified when a pixmap gains a new ID.
(ABI break.)
Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
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Normally composite will decide to add implicit redirection when a
window with an alternate visual is a parent of a window with a regular
visual or vice versa. This uses extra pixmap memory and incurs an extra
copy. This exception mechanism provides a way for a DDX to override this
if the DDX knows that its acceleration architecture will render correctly.
The relevant case is that of an RGB window reparented into a ARGB parent
frame window. If the DDX knows that the acceleration architecture in use
will pad the alpha channel to opaque when rendering to the RGB window,
the implicit redirection can be avoided.
This patch adds a new composite function:
CompositeRegisterImplicitRedirectionException()
which lets a DDX register a pair of parent and child window visuals, that
will not be implicitly redirected even if the normal policy would have
made that choice.
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
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There's nothing between the previous fetch and this one that could
cause the window pixmap to have changed.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
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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>
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Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
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Say you have two 800x600 screens left/right of each other. A window
that's 200x200 at +700+0 in protocol coordinate space will appear to be
at -100+0 in the coordinate space of the right hand screen. Put another
way: windows are in the coordinate space of their root window pixmap.
We weren't doing this translation for the COW, so when rendering came in
to it you'd see the top-left chunk of the COW on all screens. Cool
effect and all, but wrong.
v2: Only translate when Xinerama is active [keithp]
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
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v2: Belt-and-suspenders the unredirection path [vsyrjala]
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
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