August 2025 - Wine-gitlab - list.winehq.org

[PATCH v6 0/1] MR7339: ntdll: implement create_logical_proc_info on FreeBSD.
by Damjan Jovanovic (＠dj) 04 Oct '25

04 Oct '25

Add Expat as a dependency, and use it to parse the XML returned from FreeBSD's kern.sched.topology_spec sysctl. -- v6: ntdll: implement create_logical_proc_info on FreeBSD. https://gitlab.winehq.org/wine/wine/-/merge_requests/7339

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[PATCH v6 0/29] MR7226: ntdll: Implement in-process synchronization via the Linux "ntsync" driver.
by Elizabeth Figura (＠zfigura) 04 Oct '25

04 Oct '25

This introduces a faster implementation of signal and wait operations on NT events, semaphores, and mutexes, which improves performance to native levels for a wide variety of games and other applications. The goal here is similar to the long-standing out-of-tree "esync" and "fsync" patch sets, but without the flaws that make those patch sets not upstreamable. The Linux "ntsync" driver is not currently released. It has been accepted into the trunk Linux tree for 6.14, so barring any extraordinary circumstances, the API is frozen and it will be released in its current form in about 2 months. Since it has passed all relevant reviewers on the kernel side, and the API is all but released, it seems there is no reason any more not to submit the Wine side to match. Some important notes: * This patch set does *not* include any way to disable ntsync support, since that kind of configuration often seems to be dispreferred where not necessary. In essence, ntsync should just work everywhere. Probably the easiest way to effectively disable ntsync, for the purposes of testing, is to chmod the /dev/ntsync device to prevent its being opened. Regardless, a Wine switch to disable ntsync can be added simply enough. Note that it should probably not take the form of a registry key, however, since it needs to be easily accessible from the server itself. * It is, generally speaking, not possible for only some objects, or some processes, to have backing ntsync objects, while others use the old server path. The esync/fsync patch sets explicitly protected against this by making sure every process had a consistent view of whether esync was enabled. This is not provided here, since no switch is provided to toggle ntsync, and it should not be possible to get into such an inconsistent state without gross misconfiguration. * Similarly, no diagnostic messages are provided to note that ntsync is in use, or not in use. These messages are part of esync/fsync, as well as part of ntsync "testing" trees unofficially distributed. However, if ntsync is working correctly, no message should be necessary. The basic structure is: * Each type of server object which can be waited on by the client (including events, semaphores, mutexes, but also other types such as processes, files) must store an "inproc_sync" object. This "inproc_sync" object is a full server object (note that this differs from esync/fsync). A vector and server request is introduced to retrieve an NT handle to this object from an arbitrary NT handle. Since the actual ntsync objects are simply distinct file descriptions, we then call get_handle_fd from the client to retrieve an fd to the object, and then perform ioctls on it. * Objects signaled by the server (processes, files, etc) perform ntsync ioctls on that object. The backing object in all such cases is simply an event. * Signal and wait operations on the client side attempt to defer to an "inproc_\*" function, falling back to the server implementation if it returns STATUS_NOT_IMPLEMENTED. This mirrors how in-process synchronization objects (critical sections, SRW locks, etc) used to be implemented—attempting to use an architecture-specific "fast_\*" function and falling back if it returned STATUS_NOT_IMPLEMENTED. * The inproc_sync handles, once retrieved, are cached per-process. This caching takes a similar form to the fd cache. It does not reuse the same infrastructure, however. The primary reason for this is that the fd cache is designed to fit within a 64-bit value and uses 64-bit atomic operations to ensure consistency. However, we need to store more than 64 bits of information. [We also need to modify them after caching, in order to correctly implement handle closing—see below.] The secondary reason is that retrieving the ntsync fd from the inproc_sync handle itself uses the fd cache. * In order to keep the Linux driver simple, it does not implement access flags (EVENT_MODIFY_STATE etc.) Instead, the flags are cached locally and validated there. This too mirrors the fd cache. Note that this means that a malicious process can now modify objects it should not be able modify—which is less true than it is with wineserver—but this is no different from the way other objects (notably fds) are handled, and would require manual syscalls. * In order to achieve correct behaviour related to closing objects while they are used, this patch set essentially relies on refcounting. This is broadly true of the server as well, but because we need to avoid server calls when performing object operations, significantly more care must be taken. In particular, because waits need to be interruptable by signals and then be restarted, we need the backing ntsync object to remain valid until all users are done with it. On a process level, this is achieved by letting multiple processes own handles to the underlying inproc_sync server object. On a thread level, multiple simultaneous calls need to refcount the process's local handle. This refcount is stored in the sync object cache. When it reaches zero, the cache is cleared. Punting this behaviour to the Linux driver would have introduced a great deal more complexity, which is best kept in userspace and out of the kernel. * The cache is, as such, treated as a cache. The penultimate commit, which introduces client support but does not yet cache the objects, effectively illustrates this by never actually caching anything, and retrieving a new NT handle and fd every time. * Certain waits, on internal handles (such as async, startup_info, completion), are delegated to the server even when ntsync is used. Those server objects do not create an underlying ntsync object. -- v6: ntdll: Cache in-process synchronization objects. ntdll: Use server_wait_for_object() when waiting on only the queue object. ntdll: Use in-process synchronization objects. ntdll: Introduce a helper to wait on an internal server handle. server: Allow creating an event object for client-side user APC signaling. server: Introduce select_inproc_queue and unselect_inproc_queue requests. server: Add a request to retrieve the in-process synchronization object from a handle. server: Create in-process synchronization objects for fd-based objects. server: Create in-process synchronization objects for timers. server: Create in-process synchronization objects for threads. server: Create in-process synchronization objects for message queues. server: Create in-process synchronization objects for jobs. server: Create in-process synchronization objects for processes. server: Create in-process synchronization objects for keyed events. server: Create in-process synchronization objects for device managers. server: Create in-process synchronization objects for debug objects. server: Create in-process synchronization objects for console outputs. server: Create in-process synchronization objects for console inputs. server: Create in-process synchronization objects for screen buffers. server: Create in-process synchronization objects for console servers. server: Create in-process synchronization objects for consoles. server: Create in-process synchronization objects for completion ports. server: Create in-process synchronization objects for mutexes. server: Create in-process synchronization objects for semaphores. server: Create in-process synchronization objects for events. server: Add an object operation to retrieve an in-process synchronization object. ntdll: Retrieve and cache an ntsync device in wait calls. This merge request has too many patches to be relayed via email. Please visit the URL below to see the contents of the merge request. https://gitlab.winehq.org/wine/wine/-/merge_requests/7226

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[PATCH v3 0/1] MR8722: mf: Add a SUBMITTED command state to avoid multiple submission of the same op.
by Yuxuan Shui (＠yshui) 03 Oct '25

03 Oct '25

If a session is shutdown when its command_state is already COMPLETE, session_handle_source_shutdown calls session_set_stopped, which calls session_command_complete which will submit the op at the head of commands again, despite it having already been submitted. Given that only the op at the head of commands can be in the submitted state, tracking it as a command state makes more sense to me. And if the command state is SUBMITTED we know not to submit the op again. * * * Superceded !8270 -- v3: mf: Add a SUBMITTED command state to avoid multiple submission of the same op. https://gitlab.winehq.org/wine/wine/-/merge_requests/8722

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[PATCH 0/1] MR7576: windowscodecs: Remove IWICWineDecoder interface.
by Nikolay Sivov (＠nsivov) 01 Oct '25

01 Oct '25

Signed-off-by: Nikolay Sivov <nsivov(a)codeweavers.com> -- https://gitlab.winehq.org/wine/wine/-/merge_requests/7576

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[PATCH v2 0/4] MR2928: xmllite/writer: Implement more APIs
by David Kahurani (＠kahurani) 30 Sep '25

30 Sep '25

Implements or at least tries to implement: WriteName WriteQualifiedName WriteNmToken WriteEntityRef Signed-off-by: David Kahurani <k.kahurani(a)gmail.com> -- v2: xmllite/writer: Implement WriteQualifiedName. xmllite/writer: Implement WriteNmToken. xmllite/writer: Implement WriteEntityRef. xmllite/writer: Implement WriteName. https://gitlab.winehq.org/wine/wine/-/merge_requests/2928

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[PATCH v3 0/7] MR6911: Draft: ntdll: Add WaitCompletionPacket.
by Zhiyi Zhang (＠zhiyi) 20 Sep '25

20 Sep '25

WaitCompletionPacket is a kernel object that, when associated with a target object and a completion object and when the target object is signaled, adds the completion information stored in itself to the completion object. For React Native. -- v3: ntdll: Implement NtCancelWaitCompletionPacket(). ntdll: Implement NtAssociateWaitCompletionPacket(). ntdll: Implement NtCreateWaitCompletionPacket(). ntdll/tests: Add NtCancelWaitCompletionPacket() tests. ntdll/tests: Add NtAssociateWaitCompletionPacket() tests. ntdll/tests: Add NtCreateWaitCompletionPacket() tests. ntdll/tests: Add WaitCompletionPacket object tests. https://gitlab.winehq.org/wine/wine/-/merge_requests/6911

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[PATCH v2 0/1] MR8742: mf: Handle start request when session is already running.
by Bernhard Kölbl 19 Sep '25

19 Sep '25

Starting the session while it's already running should not resume anything. -- v2: mf: Handle start request when session is already running. https://gitlab.winehq.org/wine/wine/-/merge_requests/8742

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[PATCH v4 0/3] MR8531: mfmediaengine: Support video output in format R10G10B10A2.
by Conor McCarthy (＠cmccarthy) 16 Sep '25

16 Sep '25

This format is used for video output with a depth of 10 bits per channel. Decoding at 10-bit quality is not currently supported, but this patch makes video playable. -- v4: mfmediaengine: Support video output in format R10G10B10A2. mfmediaengine: Rename media_engine_transfer_to_d3d11_texture() helper function. mfmediaengine/tests: Test output to format R10G10B10A2 from H.264. https://gitlab.winehq.org/wine/wine/-/merge_requests/8531

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[PATCH 0/5] MR8394: Draft: Fix Clip Studio Paint crash with Windows 10 compatibility mode
by Ignacy Kuchciński 15 Sep '25

15 Sep '25

This fixes the crash when launching ClipStudioPaint.exe with Windows 10 compatiblity mode by adding the minimum required windows.ui and windows.storage definitions and stubs. Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=58254 -- https://gitlab.winehq.org/wine/wine/-/merge_requests/8394

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[PATCH 0/4] MR8688: server: Start to expose Unix symlinks as NT reparse points.
by Elizabeth Figura (＠zfigura) 12 Sep '25

12 Sep '25

A Wine user has requested the ability to interact with Unix symlinks from Win32 code. While the generic functionality of NT reparse points is still not implemented upstream, it will probably involve a completely different code path than this, so there does not seem to me to be any point in waiting for that to be done before submitting these patches. This does not implement all the relevant functionality. FILE_OPEN_REPARSE_POINT is now respected, but returns an fd with no fd->unix_fd. Thus far only file disposition (i.e. deletion), renaming and hardlinking are implemented, and all other operations return the no_fd_status, for which STATUS_REPARSE_POINT_NOT_RESOLVED is arbitrarily chosen. This is probably going to be controversial. As controversial patches tend to get deferred forever, I'm going to at least try to pose some questions related to concept and implementation which may be easier to answer. * Do we want to expose Unix symlinks at all? This was requested by a Wine user, and it does seem a strong argument that Wine, in general, supports some measure of integration with the host, including exposing custom interfaces for programs written to take advantage of it. We also, currently, already expose Unix *directory* symlinks via NtQueryAttributesFile(). We don't currently expose such file symlinks (and this series does not change that particular point, but it would be done by follow-up patches). In a sense we are expanding existing partial support. On the other hand, Unix symlinks which are completely opaque can be useful, and some downstream distributions (CrossOver and Proton) currently rely on them to reduce disk space usage while keeping the application unaware of a symlink (even if it were to use FILE_OPEN_REPARSE_POINT. Not that any applications are currently known that would break if this were to change, and in any case they could simply revert these patches.) * Implementation-wise, is having unix_fd == -1 a non-starter? This can be true of other real fds in some specific cases... * It's also true that this current implementation suffers from some degree of TOCTOU problems: because we only store the name and not the FD anymore, the actual underlying object at that path can change. This would not be true on Windows. Is this a problem? * One alternate approach would be to use O_PATH (Linux, FreeBSD) and O_SYMLINK (Mac). I don't see any equivalent flag for NetBSD or Solaris, so we would probably just not be able to expose this functionality there. Note that while the documentation seems to imply that O_PATH only stores the path, manual testing shows that (at least on Linux) a fd opened with O_PATH will remain pointing at the same *inode* even if it is moved or deleted. So this would avoid the aforementioned TOCTOU problem. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/8688

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