Ros-dev November 2004

ros-dev@reactos.org

64 participants
103 discussions

RE: [ros-dev] question about some old changes (hartmut)
by Hartmut Birr 19 Nov '04

19 Nov '04

Hi, >What was the reason for these changes? It looks like a workaround for some other bug. it is a nice question after more than one year. >http://cvs.reactos.com/cgi-bin/cvsweb.cgi/reactos/ntoskrnl/ke/wait.c.diff?r 1=1.51&r2=1.52 KeRemoveAllWaitsThread was called in two situations. One was a real unblocking of the thread, if the thread was waiting on a waitable object which was signaled. The other was the terminating of the thread by an other thread. In this case KeRemoveAllWaitsThread has worked if the thread was waiting on a waitable object. If the thread was simply suspended, RemoveEntryList has bug checked because Waiter->WaitListEntry wasn't in any list. The reason for these changes was the implementation of the CTRL-C handlers in csrss. - Hartmut

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fix for regedit
by Christian Koinig 19 Nov '04

19 Nov '04

This fixes the problem with regedit (regedit freezes after opening a child window). Regards Christian ------------------------------------------------------ Index: framewnd.c =================================================================== RCS file: /CVS/ReactOS/reactos/subsys/system/regedit/framewnd.c,v retrieving revision 1.11 diff -u -p -r1.11 framewnd.c --- framewnd.c 11 Oct 2004 21:08:05 -0000 1.11 +++ framewnd.c 18 Nov 2004 21:56:01 -0000 @@ -670,8 +670,10 @@ FrameWndProc(HWND hWnd, UINT message, WP OnMenuSelect(hWnd, LOWORD(wParam), HIWORD(wParam), (HMENU)lParam); break; case WM_ACTIVATE: - if (LOWORD(hWnd)) - SetFocus(g_pChildWnd->hWnd); + // I don't know what this is supposed to do (except for creating an infinite "setfocus loop"). + // If someone ever figures it out put it back in plz. + //if (LOWORD(hWnd)) + // SetFocus(g_pChildWnd->hWnd); break; case WM_DESTROY: WinHelp(hWnd, _T("regedit"), HELP_QUIT, 0); ------------------------------------------------------

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Greenville: The story of Freetype VS the windows rasterizer---
by Wierd Wierd 19 Nov '04

19 Nov '04

Hey everybody- I seem to be consistantly running into troubles with Freetype and Greenville. I suspect the problem stems from Freetype trying to render the glyph with too many shades of grey, and I *SERIOUSLY NEED* somebody to fix it. Here is a more technical view of the situation, and the problem: The TrueType hinting system allows each pixel to be subdivided into sub-units. There are 81 subunits per pixel, in a 9x9 grid, with the center being the origin point. So, it looks something like this: 87654321012345678 7XXXXXXXXXXXXXXXX 6XXXXXXXXXXXXXXXX 5XXXXXXXXXXXXXXXX 4XXXXXXXXXXXXXXXX 3XXXXXXXXXXXXXXXX 2XXXXXXXXXXXXXXXX 1XXXXXXXXXXXXXXXX 0XXXXXXXXXXXXXXXX 1XXXXXXXXXXXXXXXX 2XXXXXXXXXXXXXXXX 3XXXXXXXXXXXXXXXX 4XXXXXXXXXXXXXXXX 5XXXXXXXXXXXXXXXX 6XXXXXXXXXXXXXXXX 7XXXXXXXXXXXXXXXX 8XXXXXXXXXXXXXXXX That represents the total number of subunits, and their coordinate placements within 1 pixel. The windows rasterizer determines the 'shade' the pixel will get, based on % of coverage this pixel gets from the outline, as does freetype. The problem shows up, because The windows type rasterizer only renders 16 shades, including Black and White, while the Freetype one renders 256 shades. There are only 81 units, however. What does this mean? It means that under freetype as it currently stands, if even *ONE* pixel subunit is covered by an outline, it will render as a shade of grey--- While the exact same pixel, with the windows rasterizer, will render as 'white' instead. This is because "white" is 1/256th coverage, and there are only 81 subunits-- Essentially meaning that in order to get 'white' out of freetype, the pixel cannot be touched *AT ALL* by the glyph outline. On the windows rasterizer, there are only 16 shades of grey, so up to 1/16th of the area can be covered, and still rendered as 'white'-- or 5 subunits covered. This is why the windows rasterizer produces crisper images than Freetype. I don't know how to fix this behavior in Freetype, and *SERIOUSLY* need said behavior changed, As soon as possible. Thank you. __________________________________ Do you Yahoo!? The all-new My Yahoo! - Get yours free! http://my.yahoo.com

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RE: [ros-dev] ReactOS Versions
by Waldo Alvarez Cañizares 18 Nov '04

18 Nov '04

Hi Rick: I think you mean something like the make xconfig or make gconfig you can do when building the Linux kernel. Hmm I think if that´s what you mean ROS could have a little GUI application to configure the system. I mean to make life easier to non-programmers that wish to build a custom system. That's one of the things Linux users enjoy very much and I think that would be good for ROS too and won't take very long to do. Also if it is done general enough won't have to be maintained in the future. Well at least not that much. Regards Waldo ________________________________ De: ros-dev-bounces(a)reactos.com en nombre de Rick Langschultz Enviado el: Jue 11/11/2004 6:53 p.m. Para: ros-dev(a)reactos.com Asunto: [ros-dev] ReactOS Versions When ReactOS is built and runs windows executables stabily I think we should have a program for windows that will let you customize the platform like windows ce and compile it with all the features you want. I think that it would be a great idea because of different types of systems such as PBX/VOIP servers, application servers, and domain name servers. This would allow security to be integrated into ReactOS by limiting programs allowing open ports, and Denial of service attacks. Maybe even support for multiple architectures like SH, ARM, X86, AMD64, PPC??? With FAT, FAT32, NTFS, XFS, EXT3, EXT2, and many others. Maybe even a rom based os... Please tell me what you all think.

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"no current process" problem
by Gunnar Dalsnes 18 Nov '04

18 Nov '04

Hi. I'm was fixing some code, se\semgr.c->SeLockSubjectContext/SeUnlockSubjectContext, where apc's were not disabled before/after ExAcquireResourceExclusiveLite/ExReleaseResourceLite using KeEnterCriticalRegion/KeLeaveCriticalRegion. KeEnterCriticalRegion/KeLeaveCriticalRegion access current thread and this triggers bsod->"no current process". call chain: CmInitializeRegistry->ObCreateObject->SeCaptureSubjectContext->SeLockSubject Context CmInitializeRegistry is called in ke\main.c before the initial process is created. What should i do? Add checks for if the current process/thread exist or not in KeEnterCriticalRegion/KeLeaveCriticalRegion or is there some other way to fix this? Gunnar

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Hmm, another petition:
by Lucio Diaz 18 Nov '04

18 Nov '04

As someone have stated in the forum, the Roadmap is YEARS old, could you send me the projects you are working in, and the expected (realist ones) dates of conclusion. That way i could make a new roadmap. Thankyou again, Lucio Diaz. ______________________________________________ Renovamos el Correo Yahoo!: ¡100 MB GRATIS! Nuevos servicios, más seguridad http://correo.yahoo.es

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Loading ReactOS from Floopy
by Lucio Diaz 18 Nov '04

18 Nov '04

I am working in a Howto for installing ReactOS, so i tried the diferent ways for instalating it, but in recent builds there was no option to install the Freeloader in a diskete (XP machine here) in the Real Hardware instalation. I tried downloading the binaries and copying them to C:\ReactOS , download the Freeloader image and RAWwrite it in a diskete, but i could not get the configuration screen (it worked for me, but maybe not for others without configuration options) Is there any way i could install the Freeloader image and still have a "normal" configuration phase of ReactOS.? This will help convince people to install reactOS, not having to touch the Boot sector for a ReactOS insatllation regardless the OS you have installed would be great. I imagine something like this: -------------------------------------- 1) Download the ReactOS binaries (8 Megs) from sourceforge 2) Use Winzip to extract them to C:\ that way a Folder called C:\ReactOS will be created with all the reactos files(It must be a FAT32 partition). 3) Download the Program Rawwrite for windows and extract it to any folder you wish. 4) Download the Freeloader Floopy Disk image and extract it to any folder you wish. 5) Insert a new formated Floopy Disk and Execute Rawwrite: 6) Select the image file from the folder you extracted the Freeloader: 7) Press write, and wait till the program ends writing the image to the Floopy. 8) Restart the computer booting from the Floopy Disk: ---------------------------------------- This is the option i would like as user. Copy the program to a folder, and the use a Diskete to load it. Usefull both in 95/98/NT/XP and Linux, with minimal risks for people who fears burning their HD. But the question, Can this be done?. I have downloaded the source code but i am lost. Can someone help me with this? Thanks in advance, Lucio Diaz. ______________________________________________ Renovamos el Correo Yahoo!: ¡100 MB GRATIS! Nuevos servicios, más seguridad http://correo.yahoo.es

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NDIS suggestion
by eric.kohl＠t-online.de 18 Nov '04

18 Nov '04

Hi! Isn't it possible to call NdisIStartAdaper (in ndis/miniport.c) when the miniport driver recieves an IRP_MJ_PNP/IRP_MN_START_DEVICE request? Right now it is called from NdisIAddDevice. This means the miniport device is started before resource lists are assigned to the NICs device node. NdisMQueryAdaperResources and NdisMPciAssignResources cannot be implemented oe won't work because of this. Regards, Eric

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Important software
by Casper Hornstrup 18 Nov '04

18 Nov '04

I intend to move the following important software from rosapps to reactos/subsys/system: calc regedt32 regsvr32 sysutils/ctm and the following to reactos/apps/utils/net: net/ping net/arp net/finger net/ipconfig net/netstat net/telnet net/whois Actually there are two telnet applications. Which is better? If I've left out something important, please speak up. Casper

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question about some old changes (hartmut)
by Gunnar Dalsnes 18 Nov '04

18 Nov '04

Hi. What was the reason for these changes? It looks like a workaround for some other bug. http://cvs.reactos.com/cgi-bin/cvsweb.cgi/reactos/ntoskrnl/ke/wait.c.diff?r1 =1.51 <http://cvs.reactos.com/cgi-bin/cvsweb.cgi/reactos/ntoskrnl/ke/wait.c.diff?r 1=1.51&r2=1.52> &r2=1.52 Gunnar

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Ros-dev November 2004