March 2006 - Wine-devel - list.winehq.org

Re: Implement THREAD_PRIORITY_TIME_CRITICAL
by Andreas Mohr 03 Apr '06

03 Apr '06

Hi, On Fri, Mar 31, 2006 at 02:06:23PM +0100, Mike Hearn wrote: > This patch gives me rock solid audio in Imperium Galactica 2, so now the > game works perfectly. > > There has been discussion around this issue with respect to security in > the past, however, regardless of what approach is adopted this code will > have to be written anyway. Ah, thanks, nice to see that it actually helps. > + scheduler = SCHED_FIFO; IMHO we should really add some smart detection of SCHED_ISO kernel capability and *much* prefer to use that one then. One really wouldn't want to hang the box... Not to mention that SCHED_FIFO requires root, which is an absolute PITA. Nice To Have would be support for stuff such as SCHED_IDLEPRIO and SCHED_BATCH... > + if (result == -EPERM) > + { > + static int need_warning = 1; > + > + if (need_warning) > + { > + fprintf( stderr, "\nwineserver: Failed to promote the priority of a time critical thread.\n" ); > + fprintf( stderr, "Audio may destabilise. To fix this re-run the application as root.\n\n" ); > + need_warning = 0; > + } > + > + return; > + } Make that static int already_warned; /* static: = 0! */ Since static uses 0 as default and you don't want to waste space in the .bss(?) segment for an explicit 1 init. Andreas Mohr -- No programming skills!? Why not help translate many Linux applications! https://launchpad.ubuntu.com/rosetta (or alternatively buy nicely packaged Linux distros/OSS software to help support Linux developers creating shiny new things for you?)

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Update on Software Freedom Law Center work
by Alexandre Julliard 03 Apr '06

03 Apr '06

Folks, As announced at the last Wineconf, Jeremy and myself have been working for a few months now with the Software Freedom Law Center on a number of legal issues concerning Wine. We've been mostly quiet about it, so I thought I'd post a status update. There are two major tasks going on at the moment: 1. Code audit We are doing an audit of the code base, to make sure we have proper records of all contributions, and spot any potentially troublesome code. The goal is to be able to show to people who don't want to dig through the source that we have done our development properly, and that they can use Wine without fear of legal trouble. Currently, a survey is being sent out to people we have identified as major contributors, so that we can collect some information from them, like employers, license agreements, that sort of thing. This will enable us to build a complete track record for all contributions. We are still processing the results, at this point the responses we received cover approximately half of the code base (many thanks to everybody who took the time to answer!). We'll be sending the survey to more contributors in the near future to try to get as close to 100% coverage as we can. 2. Non-profit organization There are many advantages to having a non-profit organization for a project, for instance to allow tax-exempt donations, or hold assets like trademarks. However it's a lot of paperwork to do, so we never went to the trouble of setting one up. Now the SFLC is starting an organization called the Software Freedom Conservancy, that will be officially launched on Monday. It's basically an umbrella non-profit that provides services to free software projects. By joining that organization, we will get all the advantages of having our own non-profit, without having to do any of the work, so that seems like a good deal... There will also be the possibility of assigning our copyrights to that organization, which would make it easier to enforce the license, and provide some liability protection for developers. However this will only be done if most developers are comfortable with it, so I'd be interested to hear your feedback on this issue. -- Alexandre Julliard julliard(a)winehq.org

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Direct3D, the kernel and ReactOS
by Stefan Dösinger 01 Apr '06

01 Apr '06

Hello List, I had a talk to the DirectX developers of reactos on their irc channel to discuss how Reactos and Wine can share efforts on DirectX. (Please leave the legal issues asside for now, let us concentrate on the technical part for now). I didn't expect much possibility for a cooperation in such a hw-related thing as DirextX, but Greatlord told me about the gdi / win32k problem Wine is heading to with the current DirectX code. According to Greatlord, Microsoft's DirectX implementation basically consists of a kernel-side part in gdi.dll and win32k.sys, and a user-mode part in ddraw.dll, d3d8.dll and d3d9.dll. The user dlls contain the Hardware emulation layer code, and calls to the kernel for the Hardware abstraction layer. Now that wouldn't be a problem for Wine, as applications are expected to use the user mode dlls, and using the kernel interface is highly discouraged by Microsoft. However, there are a few apps out there which access the kernel interface directly, and Greatlord told me that he knew about a few companies which plan to use it to gain speed improvement. Expectedly, such apps won't work on Wine. My long term suggestion is to move the Direct3D->OpenGL translation code from WineD3D to gdi and a win32k sys, and write ddraw.dll, d3d8.dll and d3d9.dll to use that interface. The user mode dlls can be shared with Reactos, and from a technical point of view, even Microsoft's DirectX dlls can be used on Wine(including the hardware emulation layer). I know that this is not easy to achieve. The kernel interface is poorly documented, and Greatlord has spent a lot of effort to verify the docs and to write a better documentation of the interface. Apps using the kernel interface should be considered broken, and I don't give them a long lifetime as the interface changes from Windows version to Windows version(According to Microsoft, Greatlord says it didn't change since NT(2K?) ). Should we go this way and implement the kernel Direct3D interface? If so, I consider this something post-1.0, and we should definitely see what changes Vista brings. Another thing we discussed was DirectInput. ReactOS uses wines dinput.dll, with improvements which gets the sdk demos and some nasty games working. I can see if I can merge the changes to Wine.

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Photoshop plugins in Gimp on Linux using Wine!
by Dan Kegel 01 Apr '06

01 Apr '06

I've been hearing rumblings about people using Wine to run windows photoshop plugins on Linux Gimp, but hadn't seen anything concrete. Well, here it is: http://www.gimp.org/~tml/gimp/win32/pspi.html Have a look. Congratulations, Wine! - Dan -- Wine for Windows ISVs: http://kegel.com/wine/isv

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Re: [Bug 1181] Keyboard translation broken: uses raw keycodes
by Peter Åstrand 31 Mar '06

31 Mar '06

On Thu, 30 Mar 2006, Wine Bugs wrote: > http://bugs.winehq.org/show_bug.cgi?id=1181 > > ------- Additional Comments From Speeddymon(a)gmail.com 2006-30-03 10:26 ------- > Peter, I'm not sure if you ever did subscribe to wine-devel, but you did mention > that wine could possibly reuse parts of your keysym implementation. Could you > email the list (even if you dont scubscribe) and let them know about this bug, > and see if anyone is willing to take a look at it. Just make sure you let them > know you aren't subscribed, if you aren't, and to CC you on replies. Hi, now you know about this bug. As the comment says, it might be possible to reuse some parts from the rdesktop implementation. I'm not saying that it will be easy, though. To be honest, I think bug 4923, and many others, are more important. Instead of fixing Wine, it might be possible to enhance Xvnc so that it can "emulate" a physical Xserver with a certain physical keyboard. Regards, -- Peter Åstrand ThinLinc Chief Developer Cendio http://www.cendio.se Teknikringen 3 583 30 Linköping Phone: +46-13-21 46 00

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Keyboard Rewrite
by Tom Spear 31 Mar '06

31 Mar '06

Hi all, this is a call for volunteers. I am hoping that certain developers participating in another thread are willing to rewrite the keyboard code, but we need people to test. If you are interested, please reply here saying that you are interested, and what kind of keyboard you use, as well as the layout you use under X. I will be creating a wiki page for this project once the people who will be taking on this rewrite confirm that they will do so, and will post the link to this thread as soon as it is created. The purpose of this rewrite is to (hopefully) fix all of the problems people have with key mappings, characters not showing up as expected, race conditions, characters not showing up at all, etc, and hopefully allow us to close out many of the bugs in bugzilla having to do with the keyboard. Thanks all in advance Tom

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getwinegit.sh 0.31 released!
by Christian Lachner 31 Mar '06

31 Mar '06

OK, I'm tired now but this is a new release an it owns ;). It should be quite stable but I didn't test it. So what has changed: 0.31 One more Release, I'm glad about this one - Some smaller an greater Fixes - After Compiling, the Script creates a helperfile to help mode 4 - Sections in Logfile - Trap included to handle ctrl+c - Implemented a small sleeper to give you a chance to stop the script before it starts to clean the source This is one of the last versions. The last version will be called 1.0. (maybe the next one?) If you miss a feature... write to the mailinglist.

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Improper message recursion revealed by recent desktop window changes
by Troy Rollo 31 Mar '06

31 Mar '06

The recent changes to the desktop have revealed a problem with recursive processing of X messages. The problem started to manifest with commit 1a4f6e579b6aab685fae2e649fd5accee7ec0b4f (7th March). A symptom is a stack that looks like this: <application Window procedure> WINPROC_wrapper ... CallWindowProcW ... SendMessageW X11DRV_SetWindowPos SetWindowPos X11DRV_ConfigureNotify process_events X11DRV_MsgWaitForMultipleObjectsEx wait_message_reply send_inter_thread_message SendMessageTimeoutW SendMessageW send_parent_notify DestroyWindow In other words, a destroy notification is being sent to the parent window with SendMessageW, and before that message returns an unrelated X message is processed. Under Windows the equivalent could never happen - if a thread is in SendMessage(), the only messages that can be delivered to it are ones sent by SendMessage() from another thread. The consequences of this can be unpleasant if the code that processes (in this case a window movement notification) the message interferes with state that is being dealt with in earlier stack frames. wait_message_reply calls X11DRV_MsgWaitForMultipleObjectsEx with: res = USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue, INFINITE, QS_ALLINPUT, 0 ); The brute-force approach of changing this to the following makes the application work, but gives rise to some pack_message FIXMEs (for WM_NCPAINT and WM_ERASEBKGND), and since this is an extremely sensitive piece of code to change I thought it best left to people with more familiarity with it. -- Troy Rollo - wine(a)troy.rollo.name

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Re: [RESEND][x11drv] cleanup: Move x11drv escape codes to one common header file.
by Alexandre Julliard 31 Mar '06

31 Mar '06

Tomas Carnecky <tom(a)dbservice.com> writes: > This patch doesn't change any logic or C sourcecode, it only moves the > X11DRV escape code definition to one common header file. Currently the > definitions are spread over several C source files, and even there the > definitions differ from file to file. I don't see anything wrong with > this patch unless you *want* to have it difficult to maintain the code. Actually, that's more or less what we want. That sort of inter-dll dependencies should be strongly discouraged, and we don't want to add more of it than strictly necessary; as far as possible we also don't want dlls to depend on private headers, so copying a few things across is the preferred approach. If it becomes a problem it means something is wrong with our implementation. -- Alexandre Julliard julliard(a)winehq.org

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Re: "Unhandled exception: floating point stack check" early in program?
by Petr Tesarik 31 Mar '06

31 Mar '06

Hi, I'm not online too often. :( So, I thought the patch for Linux must already be in CVS. It is not. The patch can be found here: http://www.winehq.org/pipermail/wine-patches/2006-March/025228.html However, the patch only works for Linux. Please, let me know if you're using a different platform, as it is very likely that it can be made to work too, but I won't send patches which I can't test. To the wine-devel list: Why was the patch rejected, anyway? Petr Tesarik On 03/29/06 at 09:35:04 (-0800), Dan Kegel wrote: > On 3/29/06, Petr Tesarik <hat(a)tesarici.cz> wrote: > > No, this is not normal. This problem was introduced on the i386 > > architecture, when floating point registers were added to winedbg. > > Currently, there are two pending patches by me, one which fixes the > > problem on Linux, and another which fixes it on all platforms but is > > most likely wrong. > >... > > Anyway, see also my next email. > > Looking forward to it. > Can you give me the URL of the i386 patche in the wine-patches archive? > Thanks, > Dan >

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