- Wine-Devel - list.winehq.org

HiDPI / Scaling window content
by Jordan Johnston Jan. 6, 2023

Jan. 6, 2023

Hey all, I'm looking for some pointers on coming up with a hack to better support HiDPI with wine on my hi-res display (not something that would be submitted upstream. "hack" indeed)... As you are all probably aware; while you can adjust DPI in Winecfg, that only affects Windows UI elements ~ but It does not help with anything outside of that... I have some apps that are basically unusable with HiDPI and i've tried multiple solutions, to no avail. (and setting my resolution to 1440x900 isn't a viable solution either). I've been poking around dlls/winex11.drv and I'm wondering if anyone might have pointers on how some of the scale related stuff works? -- I'm wondering if it may be possible to hack the x11 code to multiply the scale of the window contents? (and perhaps, I can then wrap it in an env variable for use)... If anyone has any pointers, or if they think something like this could work -- I'd appreciate your insights (again, I'm just looking for kind of a one-off hack, not something upstream-able.. I'm sure HiDPI compatibility-mode will land upstream, at some point (Windows has this)). While I am familiar with some of Wine's internals - the graphics stack, window management / x11 code is somewhat alien to me. Alternatively, i suppose if someone is working on related code and has a git branch / patchwork available, I'd be open to try that out too. Thanks, and Happy New Year to you all! Jordan

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CPython fails to import symlinked packages in recent versions of Wine Staging - how to debug?
by Sebastian M. Ernst Dec. 28, 2022

Dec. 28, 2022

Hi all, I have noticed a "new" issue in Wine Staging that I believe must have found its way into it in the October to November time frame. I am heavily using CPython on top of Wine. When Python imports modules, it looks for them in certain paths, specified in `sys.path`. For development, it is common practise to symlink a package's folder from e.g. a git repo into one of the folders contained in `sys.path`, usually `site-packages`. Python then happily imports the module from there for e.g. testing. Many tools are built around this workflow. This used to work with Wine Staging until about September and still works with stable releases of Wine 7. However, in recent versions of Wine Staging, 7.22 and 8.0-rc2, the import fails: ``` Traceback (most recent call last): File "<string>", line 1, in <module> File "Z:\work\bar\__init__.py", line 1, in <module> from .subbar import funcbar ModuleNotFoundError: No module named 'bar.subbar' ``` Python's module import mechanism appears to follow the symlink correctly (into module "bar") but fails to "locate" stuff within the linked folder (submodule "bar.subbar"). Other Python code can at least correctly navigate the linked folder's contents, so I am suspecting a `stat` syscall of some kind to return unusual values. Python's import mechanism was rewritten recently, so only versions prior to Python 3.10 appear to be affected. Many packages support down to 3.7 at the moment. A minimal reproducer, all steps included: https://gist.github.com/s-m-e/84d5fbf5663825a46d9ae98e4636d8ec Wine builds from dl.winehq.org/wine-builds/ubuntu on Ubuntu 22.04. I am not sure what I am looking for. How would I debug this from Wine's side or, in other words, what am I looking for in Wine's logs? Is there something that I can try as a workaround (other than going back to older versions of Wine)? Thanks, Sebastian

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Wine staging 8.0-rc2 release
by Alistair Leslie-Hughes Dec. 23, 2022

Dec. 23, 2022

Binary packages for various distributions will be available from: https://www.winehq.org/download Summary since last release * Rebased to current wine 8.0-rc2 (474 patches are applied to wine vanilla) Upstreamed (Either directly from staging or fixed with a similar patch). * none Added: * None Updated: * ntdll-NtDevicePath Where can you help * Run Steam/Battle.net/GOG/UPlay/Epic * Test your favorite game. * Test your favorite applications. * Improve staging patches and get them accepted upstream. * Suggest patches to be included in staging. As always, if you find a bug, please report it via https://bugs.winehq.org Best Regards Alistair.

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UIRibbon 2022 Edition
by Fabian Maurer Dec. 18, 2022

Dec. 18, 2022

Hello wine-devel, trying to get more work done on UiRibbon during the holidays, could need some help regarding planning though. Short rundown: uiribbon.dll uses a proprietary binary format to load ribbon structure data. This is created using UICC.exe (shipped by windows SDK) from a XML markup; the binary is embedded into the application. I already reversed the binary format pretty far, and wrote a file format description. That file format description uses Kaitai Struct, a declarative language to generate binary data parsers. Currently I'm working on a Kaitai backend to generate a C parser. I'm probably going to create a folder under "libs" called "uiribbon" where said description and classes generated by kaitai struct (and the runtime) can lie. I do believe that leaving the parser/generation up to Kaitai is a good idea, especially since Wine itself doesn't need to rely on Kaitai. Just need it to regenerate the parser if the format description is modified. I hope that's not a problem, because I really want to go the Kaitai Struct route. The problem: Still not sure how to deal with tests. And if we need to use a writer.. I could make a "custom UICC", a program to turn XML markup into the binary format. Not really useful for applications, but could be a "nice to have" or useful for tests. Lots of work though. Problem 1: Windows doesn't ship UICC by default. That means if we need it for tests, it needs to be installed, or tests won't be able to run. Problem 2: Windows doesn't really have a parser exposed for the binary markup. You can load it and it either works, or doesn't - in the worst case the application simply crashes. Other error cases simply create a broken ribbon, only displayed completely in black. Not easy to see what's wrong, or test if it's wrong to begin with. Although it should probably be possible to extract existing UI elements using uiautomation. Not sure exactly how useful it is. Question is how we do the tests: 1) Put markup and according binaries into the tests, write tests against the binaries to assert what we expect from the written markup. If I recall correctly, embedding binary blobs wasn't too well received. 2) Put markup into tests. Compile it on windows using real UICC, test the parser that way (using something like C_SRCS = ../uiribbon_parser.c to have the parser available in the tests) 3) Compile markup using custom UICC, test the ribbon against windows (using uiautomation, limited testing only). Maybe some combination. Thoughts? Regards, Fabian Maurer

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Re: How to delete a git branch that's not been merged?
by Gerald Pfeifer Dec. 17, 2022

Dec. 17, 2022

On Tue, 13 Dec 2022, Gerald Pfeifer wrote: > https://wiki.winehq.org/Git_Wine_Tutorial#Deleting_branches has > > Deleting branches > > git branch -D new-branch > > Alas that does not work for me. > > % git branch -a > * master > remotes/origin/HEAD -> origin/master > remotes/origin/dll_soinit.c-stddef.h : > > % git branch -D dll_soinit.c-stddef.h > error: branch 'dll_soinit.c-stddef.h' not found. I believe I can now answer my own question, having dug into it a bit. The invocation above is for *local* branches, branches in the local checkout. To remove a *remote* branch, for example where a merge request was not accepted or was "bad" for some reason, we need to use `git push` instead of `git branch`: % git push origin --delete dll_soinit.c-stddef.h I plan on adding this to the Wiki in a few days. Any suggestions/concerns? Gerald

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git pull --rebase upstream ?
by Gerald Pfeifer Dec. 16, 2022

Dec. 16, 2022

These days I find myself spending more time wrestling with Git/Gitlab than it takes me to create and test a patch. So I am keenly interested to help improve https://wiki.winehq.org/Git_Wine_Tutorial#Creating_a_fork_on_Gitlab :-) Here is the first item: I ran # git clone git(a)gitlab.winehq.org:gerald/wine.git # git remote add upstream https://gitlab.winehq.org/wine/wine.git followed by # git pull --rebase upstream following https://wiki.winehq.org/Git_Wine_Tutorial#Creating_a_fork_on_Gitlab And there is where the instructions fail as follows: # git pull --rebase upstream From https://gitlab.winehq.org/wine/wine * [new branch] master -> upstream/master * [new branch] oldstable -> upstream/oldstable * [new branch] stable -> upstream/stable You asked to pull from the remote 'upstream', but did not specify a branch. Because this is not the default configured remote for your current branch, you must specify a branch on the command line. It appears the invocation should be shown as # git pull --rebase upstream master instead? Gerald PS: I'd volunteer to update the Wiki accordingly if confirmed, alas my wiki.winehq.org account (GeraldPfeifer) does not appear to exist any longer? And creating a new one is not possible?

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Wayland driver - December 2022 update
by Alexandros Frantzis Dec. 16, 2022

Dec. 16, 2022

Hi everyone! It's been some time since our last Wayland driver update ([1]), and, with the year coming to an end, I wanted to share information about the progress we made this year and discuss future steps. The focus in 2022 was on maturing the Wayland driver and keeping up to date with the Wine upstream internal changes. This involved, among other things, splitting the driver into a PE and Unix part, updating it for the latest internal driver APIs, and making preparations to support WoW64 (we are not there yet, but we are close). A significant improvement compared to last year is support for cross-process rendering, which is required by Chromium/CEF applications. Last year the driver was able to run Chrome with the "--in-process" command-line option. This year Chrome is supported without any special flags, fully GPU accelerated on both OpenGL and Vulkan! This was achieved by implementing what is effectively an internal off-screen swapchain in the driver's OpenGL and Vulkan integration code, along with a mechanism to send buffers to other processes for presentation when needed. This update also brings enhanced support for the linux-dmabuf v4 Wayland protocol (aka dmabuf-feedback), which allows compositors to dynamically send information about optimal formats and modifiers, e.g., depending on the surface presentation mode (fullscreen vs windowed). Our new internal OpenGL swapchain can handle such feedback directly, while for Vulkan we rely on the Wayland WSI to provide this functionality. This year we also made a lot of smaller scale fixes and enhancements, that in aggregate have greatly improved driver stability. These were a result of both testing we performed ourselves, and also of reports from people trying out the Wayland driver, for which we are very grateful. All the features listed in our previous update (multi-monitor, display mode changes, copy-paste, keymaps, relative mouse etc) have been further refined. One issue for which we haven't yet found a reasonable solution, is how to properly position the context/right-click menu in the standalone systray. The Wayland driver uses the Wayland protocol in a manner that, although in spec, exercises less well-trodden paths in compositor code. Throughout the year we have come across a few issues with compositors, which we have been working with upstreams to address. One issue that people should be aware of, in particular, manifests as improper relative mouse motion in first-person 3D games when using the Wayland driver with some compositors (e.g., see [2]). TL;DR of how to use the development branch: $ git clone -b wayland https://gitlab.collabora.com/alf/wine/ $ cd wine $ ./configure --with-wayland [--with-vulkan] $ make [-jN] $ DISPLAY= WAYLAND_DISPLAY=wayland-0 ./wine ... Especially note the use of 'DISPLAY=', which we use to opt in to the Wayland driver by disabling the higher priority X11 driver. Here is a video showing the latest version of the Wayland driver in action (note that in this video I am using Mutter from git main that includes the fix for the relative motion issues mentioned above): https://www.youtube.com/watch?v=lZ-MK72Kyp8 --- Next steps: Last year, due to the extensive ongoing internal rework in Wine (e.g., win32u), the decision was made to postpone the upstreaming of the Wayland driver until some amount of internal stability had been reached. My impression is that things are a lot more stable now, from the drivers' point of view at least. Is there any upcoming work that people feel would be severely hindered by the upstreaming of the Wayland driver? Ideally, I would like to start the upstreaming effort (which I expect will take some time) at some point early next year, after the codebase has been unfrozen. Does this sound reasonable? Thanks, Alexandros [1] https://www.winehq.org/pipermail/wine-devel/2021-December/203035.html [2] https://gitlab.gnome.org/GNOME/mutter/-/issues/2223

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Why is vkd3d an extra projekt?
by Fabian Maurer Dec. 13, 2022

Dec. 13, 2022

Hello, For a while now I'm curious, so I have to ask: Why is vkd3d an extra project? Is that because it is reusable as standalone library? Just curious, because it's the only library in Wine that is a separate project. Wouldn't it have made sense to develop it as part of Wine to reuse the wine infrastructure and always have the most recent code for dx12/shaders? Regards, Fabian Maurer

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What does the "Override" button do in joy.cpl?
by Alex Henrie Dec. 13, 2022

Dec. 13, 2022

While looking at the new messages to translate for Wine 8.0, I noticed several like this: "No user detected on slot #0, make sure your gamepad is plugged in, and not overriden for DInput in the Joysticks tab." Leaving aside the misspelling of "overridden" in English, I want to make sure that I translate this text intelligibly into Catalan. I assume that the message is related to the "Override" button in joy.cpl. What exactly does that button do? -Alex

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Regarding Coverity
by Fabian Maurer Dec. 12, 2022

Dec. 12, 2022

Hello, I'm sometimes working through the issues Coverity scan reported, and I come across a lot of issues that I consider false positives. I however am not 100% comfortable marking them as such, just in case I am wrong... What's the policy on that? Are those getting reviewed by other devs? Should I just mark them as false positives if I think they are? Regards, Fabian Maurer

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