Ros-dev March 2005

ros-dev@reactos.org

64 participants
200 discussions

by Steven Edwards

--- Mike Swanson <mikeonthecomputer(a)gmail.com> wrote: > Hacking an existing *nix filesystem to work on ReactOS just doesn't > seem right, nor does it seem very practical. Some of us primarly run Linux and I host mine on ext3 partitions so having the ext2fsd working under ReactOS helps with the testing and migration path. Thanks Steven __________________________________ Do you Yahoo!? Yahoo! Small Business - Try our new resources site! http://smallbusiness.yahoo.com/resources/

20 years, 2 months

I think I know how uxtheme works...

by Jonathan Wilson

What I strongly suspect happens is this: 1.The themes service is always loaded and running and holds the theme data (and it contains details of which .msstyles file to use) 2.At some point (either at startup if the changes are global or when an app loads if the changes are app specific, I cant find where this bit happens but I suspect the themes service does this) control passes to ordinal 34 in uxtheme.dll (aka ThemeHooksInstall acording to uxtheme.pdb). This function calls an undocumented function in user32 called RegisterUserApiHooks (which appears to be taylor made for uxtheme to do what it needs to do). The function hooks: GetScrollInfo SetScrollInfo EnableScrollBar SetWindowRgn DefWindowProcW DefWindowProcA PreWndProc (probobly stuff that happens internally before the window procedure gets called) PostWndProc (probobly stuff that happens internally after the window procedure gets called) PreDefDlgProc (probobly connected to dialog boxes) PostDefDlgProc (probobly connected to dialog boxes) GetSystemMetrics SystemParametersInfoA SystemParametersInfoW DrawFrameControl DrawCaption MDIRedrawFrame (probobly related to MDI frame windows) This is what causes all apps (including non-theme-aware ones) to get themed non-client areas (window borders etc) 3.Apps that are theme aware have a manifest, load comctl32.dll 6.0 and probobly have to call InitCommonControlsEx (although I think some of the code in the dllmain for comctl32.dll 6.0 may also end up calling InitCommonControlsEx). This causes new versions of the stock classes (button, list box, edit, combo box etc etc etc) to be created and registered. A cursory examination of some of these classes shows that they dont seem to "pull code" from the stock implementation in user32.dll (i.e. anything they dont themselves handle goes back to DefWindowProc). In particular, it doesnt appear as though they have any knowledge of the classes or window procedures contained in user32.dll. then 4.Apps that need to do something extra call into functions exported by uxtheme.dll to do whatever they need to do. user32.dll seems to have no knowledge whatsoever about themeing and uxtheme. All that user32 has is RegisterUserApiHooks (and the matching UnregisterUserApiHooks) that uxtheme uses to hook into user32.dll and do stuff. Exactly how the theme service and theme engine works "under the hood" doesnt matter. But for ReactOS and WINE purposes, I suggest we implement the following: 1.A function similar to RegisterUserApiHooks/UnregisterUserApiHooks (either reverse engineer the MS function or write our own). This will allow uxtheme to hook into the global drawing for things like window borders without user32 needing to care about uxtheme and what uxtheme does (just like how MS hooks into user32 that way) 2.Whatver code is necessary to get the hooks installed right so that all apps get the "global" theming like on real windows 3.Support to read the manifest and load a new comctl32.dll that would be like the version 6 from microsoft (and would contain complete theme-aware implementations of the stock controls just like MS comctl32.dll 6.0 does) and 4.All the needed uxtheme exports to make stuff run This would be the same way Microsoft does things. User32.dll would have no idea whatsoever about uxtheme and theming All apps would get non-client-area themeing like on windows. And only theme aware apps would get themed controls etc (the rest would get "stock" windows controls) Oh and btw, if this "reverse engineering" is not "clean room" enough for WINE and ReactOS, let me know and I will stop posting it :)

20 years, 2 months

ping Alex regarding log2() for scheduler

by Royce Mitchell III

Alex, I managed to shave off another comparison in favor of a shift: int highest_bit ( int i ) { int ret = 0; if ( i > 0xffff ) i >>= 16, ret = 16; if ( i > 0xff ) i >>= 8, ret += 8; if ( i > 0xf ) i >>= 4, ret += 4; if ( i > 0x3 ) i >>= 2, ret += 2; return ret + (i>>1); } FWIW, rdtsc reports that compile for speed is 2x as fast as compile for size. I've thought about ways to possibly optimize pipeline throughput for this, but too many of the calculations depend on results of immediately previous calculations to get any real advantage. Here's updated micro-code for BSR, if you really think AMD & Intel will actually do it... IF r/m = 0 THEN ZF := 1; register := UNDEFINED; ELSE ZF := 0; register := 0; temp := r/m; IF OperandSize = 32 THEN IF (temp & 0xFFFF0000) != 0 THEN temp >>= 16; register |= 16; FI; FI; IF (temp & 0xFF00) != 0 THEN temp >>= 8; register |= 8; FI; IF (temp & 0xF0) != 0 THEN temp >>= 4; register |= 4; FI; IF (temp & 0xC) != 0 THEN temp >>= 2; register |= 2; FI; register |= (temp>>1); FI;

20 years, 2 months

New proposed frontpage for reactos.com

by Jason Filby

Hi all A new proposed frontpage for reactos.com can be found here: http://reactos.com/newsite/reactos_index.html None of the links go anywhere yet. ezPublish will be phased out and most of the content hosted in a wiki (editable only by people trusted in the project). The wiki/forums/blogs would require a bit of a face-lift so as to look similar. Comments? Cheers Jason

20 years, 2 months

Submit your changes fpr RC2

by Robert Köpferl

In ca. 16 h I will do SVN update again for the build 0.2.6 RC2 So think about, wether your patch should be submittet now or later. How about your feelings? Will RC2 be == final actually RC2 --------- So this is what I wanted to send yesterday. However my smtp-provider didn't work as I would have liked to. Thus I'm doing the LABEL now. __now

20 years, 2 months

Re: [ros-dev] Service Control Manager, Plug and Pray, SMB and RPC

by Steven Edwards

--- Eric Kohl <eric.kohl(a)t-online.de> wrote: > IMHO, adding missing features to WIDL and fixing resulting bugs in > rpcrt4 is much more important right now. Access to remote machines, new > transports (tcp, udp, http, etc.) and a dynamic endpoint mapper (aka > rpcss) is not that important. Would it be possible to go ahead and port some of the Wine advapi32 SCM code? Its able to install and run services such as the Windows Installer so that might solve a few problems we are facing with the Msi service and CoLinux. Thanks Steven __________________________________ Do you Yahoo!? Yahoo! Small Business - Try our new resources site! http://smallbusiness.yahoo.com/resources/

20 years, 2 months

RE: [ros-dev] ping Alex regarding log2() for scheduler

by Waldo Alvarez Cañizares

Can't that one be transformed to do a Bit Scan Reverse? I guess there are alogorithms for it too. Try near the link I provided. Or try the Angner Fog's optimization manual. If that does not works you could try SuperOptimizer. Is a program that finds algorithms in assembler for some arch (x86 included of course) by means of trying instructions using bruteforce (you can use several computers if you want), usually can be converted back to a HLL. This function is little enought to let superoptimizer work. Find it, is open source software, a little complex and MACROfied piece of code but somehow modifiable to suit your needs. Best Regards Waldo Alvarez ________________________________ From: ros-dev-bounces(a)reactos.com on behalf of Royce Mitchell III Sent: Fri 3/25/2005 4:19 PM To: ReactOS Development List Subject: Re: [ros-dev] ping Alex regarding log2() for scheduler Waldo Alvarez Cañizares wrote: >but if you are searching a fast BSF replacement... > > Unfortunately we have no need of BSF :( Is there a similar algo for BSR, which is what we need? _______________________________________________ Ros-dev mailing list Ros-dev(a)reactos.com http://reactos.com:8080/mailman/listinfo/ros-dev

20 years, 2 months

call for an atapi tester

by Hartmut Birr

Hi, does anyone own a motherboard with an intel chipset and with an ICH5/6 io controller hub? I've modified atapi a little bit. Atapi may detect the second ide (SATA) controller of an ICH5/6. I'm interested on the debug output from atapi while booting. - Hartmut M:\Sandbox\ros_work\reactos>set SVN_EDITOR=notepad M:\Sandbox\ros_work\reactos>d:\programme\subversion\bin\svn.exe diff drivers\storage\atapi\atapi.c Index: drivers/storage/atapi/atapi.c =================================================================== --- drivers/storage/atapi/atapi.c (revision 14209) +++ drivers/storage/atapi/atapi.c (working copy) @@ -123,7 +123,15 @@ ULONG Dummy; } UNIT_EXTENSION, *PUNIT_EXTENSION; -PCI_SLOT_NUMBER LastSlotNumber; +#if 1 +/* + * FIXME: + * ScsiPortGetDeviceBase must check if a resource is already in use. + * This needs to implement IoReportResourceUsage or IoReportResourceForDetection. + */ +ULONG CommandPortArray[64]; +ULONG CommandPortCount = 0; +#endif #ifdef ENABLE_NATIVE_PCI typedef struct _PCI_NATIVE_CONTROLLER @@ -388,8 +396,6 @@ InitData.DeviceId = 0; InitData.DeviceIdLength = 0; - LastSlotNumber.u.AsULONG = 0xFFFFFFFF; - Status = ScsiPortInitialize(DriverObject, RegistryPath, &InitData, @@ -437,6 +443,27 @@ #ifdef ENABLE_DMA ULONG Length; #endif +#if 1 + /* + * FIXME: + * ScsiPortGetDeviceBase must check if a resource is already in use. + * This needs to implement IoReportResourceUsage or IoReportResourceForDetection. + */ + ULONG i; + + for (i = 0; i < CommandPortCount; i++) + { + if (CommandPortArray[i] == CommandPortBase) + { + break; + } + } + if (i < CommandPortCount || + CommandPortCount >= 64) + { + return FALSE; + } +#endif IoAddress = ScsiPortConvertUlongToPhysicalAddress(CommandPortBase); IoBase = ScsiPortGetDeviceBase((PVOID)DevExt, InterfaceType, @@ -534,6 +561,14 @@ { ConfigInfo->AtdiskSecondaryClaimed = TRUE; } +#if 1 + /* + * FIXME: + * ScsiPortGetDeviceBase must check if a resource is already in use. + * This needs to implement IoReportResourceUsage or IoReportResourceForDetection. + */ + CommandPortArray[CommandPortCount++] = CommandPortBase; +#endif return TRUE; } @@ -559,7 +594,7 @@ BOOLEAN DeviceFound; ULONG BusMasterBasePort = 0; - DPRINT("AtapiFindCompatiblePciController() Bus: %lu Slot: %lu\n", + DPRINT1("AtapiFindCompatiblePciController() Bus: %lu Slot: %lu\n", ConfigInfo->SystemIoBusNumber, ConfigInfo->SlotNumber); @@ -600,10 +635,10 @@ } } - DPRINT("%x %x\n", PciConfig.BaseClass, PciConfig.SubClass); - if (PciConfig.BaseClass == 0x01 && - PciConfig.SubClass == 0x01) // && -// (PciConfig.ProgIf & 0x05) == 0) + DPRINT("%x %x %x\n", PciConfig.BaseClass, PciConfig.SubClass, PciConfig.ProgIf); + if (PciConfig.BaseClass == PCI_CLASS_MASS_STORAGE_CTLR && + PciConfig.SubClass == PCI_SUBCLASS_MSC_IDE_CTLR && + (PciConfig.ProgIf & 0x05) == 0) { /* both channels are in compatibility mode */ DPRINT("Bus %1lu Device %2lu Func %1lu VenID 0x%04hx DevID 0x%04hx\n", @@ -692,7 +727,7 @@ BOOLEAN ChannelFound = FALSE; BOOLEAN DeviceFound = FALSE; - DPRINT("AtapiFindIsaBusController() called!\n"); + DPRINT1("AtapiFindIsaBusController() called!\n"); *Again = FALSE; @@ -770,7 +805,7 @@ ULONG Count; BOOLEAN ChannelFound; - DPRINT("AtapiFindNativePciController() called!\n"); + DPRINT1("AtapiFindNativePciController() called!\n"); SlotNumber.u.AsULONG = ConfigInfo->SlotNumber; StartDeviceNumber = SlotNumber.u.bits.DeviceNumber; @@ -799,9 +834,30 @@ break; } } - if (Count < sizeof(PciNativeController)/sizeof(PCI_NATIVE_CONTROLLER)) + if (PciConfig.BaseClass == 0x01) { - /* We have found a known native pci ide controller */ + DPRINT1("Bus %1lu Device %2lu Func %1lu VenID 0x%04hx DevID 0x%04hx\n", + ConfigInfo->SystemIoBusNumber, + SlotNumber.u.bits.DeviceNumber, + SlotNumber.u.bits.FunctionNumber, + PciConfig.VendorID, + PciConfig.DeviceID); + DPRINT1("BaseClass %02x, SubClass %02x, ProgIF %02x\n", PciConfig.BaseClass, PciConfig.SubClass, PciConfig.ProgIf); + DPRINT1("BaseAddresses[0] %08x\n", PciConfig.u.type0.BaseAddresses[0]); + DPRINT1("BaseAddresses[1] %08x\n", PciConfig.u.type0.BaseAddresses[1]); + DPRINT1("BaseAddresses[2] %08x\n", PciConfig.u.type0.BaseAddresses[2]); + DPRINT1("BaseAddresses[3] %08x\n", PciConfig.u.type0.BaseAddresses[3]); + DPRINT1("BaseAddresses[4] %08x\n", PciConfig.u.type0.BaseAddresses[4]); + DPRINT1("BaseAddresses[5] %08x\n", PciConfig.u.type0.BaseAddresses[5]); + DPRINT1("InterruptLine %d\n", PciConfig.u.type0.InterruptLine); + } + + if (Count < sizeof(PciNativeController)/sizeof(PCI_NATIVE_CONTROLLER) || + (PciConfig.BaseClass == PCI_CLASS_MASS_STORAGE_CTLR && + PciConfig.SubClass == PCI_SUBCLASS_MSC_IDE_CTLR && + (PciConfig.ProgIf & 0x05) == 0x05)) + { + /* We have found a known or a native pci ide controller */ if ((PciConfig.ProgIf & 0x80) && (PciConfig.u.type0.BaseAddresses[4] & PCI_ADDRESS_IO_SPACE)) { DPRINT("Found IDE Bus Master controller!\n"); @@ -813,40 +869,24 @@ BusMasterBasePort = 0; } - DPRINT("VendorID: %04x, DeviceID: %04x\n", PciConfig.VendorID, PciConfig.DeviceID); + DPRINT1("VendorID: %04x, DeviceID: %04x\n", PciConfig.VendorID, PciConfig.DeviceID); ConfigInfo->NumberOfBuses = 1; ConfigInfo->MaximumNumberOfTargets = 2; ConfigInfo->MaximumTransferLength = 0x10000; /* max 64Kbyte */ - /* FIXME: - We must not store and use the last tested slot number. If there is a recall - to the some device and we will claim the primary channel again than the call - to ScsiPortGetDeviceBase in AtapiClaimHwResource will fail and we can try to - claim the secondary channel. - */ ChannelFound = FALSE; - if (LastSlotNumber.u.AsULONG != SlotNumber.u.AsULONG) + /* try to claim primary channel */ + if ((PciConfig.u.type0.BaseAddresses[0] & PCI_ADDRESS_IO_SPACE) && + (PciConfig.u.type0.BaseAddresses[1] & PCI_ADDRESS_IO_SPACE)) { - /* try to claim primary channel */ - if ((PciConfig.u.type0.BaseAddresses[0] & PCI_ADDRESS_IO_SPACE) && - (PciConfig.u.type0.BaseAddresses[1] & PCI_ADDRESS_IO_SPACE)) - { - /* primary channel is enabled */ - ChannelFound = AtapiClaimHwResources(DevExt, - ConfigInfo, - PCIBus, - PciConfig.u.type0.BaseAddresses[0] & PCI_ADDRESS_IO_ADDRESS_MASK, - PciConfig.u.type0.BaseAddresses[1] & PCI_ADDRESS_IO_ADDRESS_MASK, - BusMasterBasePort, - PciConfig.u.type0.InterruptLine); - if (ChannelFound) - { - AtapiFindDevices(DevExt, ConfigInfo); - *Again = TRUE; - ConfigInfo->SlotNumber = LastSlotNumber.u.AsULONG = SlotNumber.u.AsULONG; - return SP_RETURN_FOUND; - } - } + /* primary channel is enabled */ + ChannelFound = AtapiClaimHwResources(DevExt, + ConfigInfo, + PCIBus, + PciConfig.u.type0.BaseAddresses[0] & PCI_ADDRESS_IO_ADDRESS_MASK, + PciConfig.u.type0.BaseAddresses[1] & PCI_ADDRESS_IO_ADDRESS_MASK, + BusMasterBasePort, + PciConfig.u.type0.InterruptLine); } if (!ChannelFound) { @@ -862,21 +902,21 @@ PciConfig.u.type0.BaseAddresses[3] & PCI_ADDRESS_IO_ADDRESS_MASK, BusMasterBasePort ? BusMasterBasePort + 8 : 0, PciConfig.u.type0.InterruptLine); - if (ChannelFound) - { - AtapiFindDevices(DevExt, ConfigInfo); - *Again = FALSE; - LastSlotNumber.u.AsULONG = 0xFFFFFFFF; - return SP_RETURN_FOUND; - } } } + if (ChannelFound) + { + CHECKPOINT1; + AtapiFindDevices(DevExt, ConfigInfo); + *Again = TRUE; + ConfigInfo->SlotNumber = SlotNumber.u.AsULONG; + return SP_RETURN_FOUND; + } } } StartFunctionNumber = 0; } *Again = FALSE; - LastSlotNumber.u.AsULONG = 0xFFFFFFFF; DPRINT("AtapiFindNativePciController() done!\n"); return(SP_RETURN_NOT_FOUND);

20 years, 2 months

Changing syntax style of files to ms style...

by Gregor Anich

Hi! Sorry if I sound a little harsh, but I am upset by the fact that i don't understand what has driven someone to change the style of a file when adding one line of code from the old (whatever) style to ms style (where '{' and '}' are on the same line as the if/else keywords - that makes multiline if/else blocks unreadable to me, I esp. dislike it when the if-expression is also multiline - like if (some_very_long_expression_which_does && not_fit_onto_a_signle_line) { ... } ) I am not sure, but I think it was Alex. Would you please tell me why you changed the style of the file? I am pretty much used to the old style, esp. if i have been working on the file before it's strange for me to see the syntax changed in a way which i dislike as much as the ms style or whatever it is. :-/

20 years, 2 months

Re: [ros-dev] STATEMENT

by \(\) Thomas Larsen \(\)

> > Taking credits for others work is not a nice thing to todo (Thx Alot).. > > but you made it worse anyway so no hard feelings :-) > What is it about? Can you point me to time/date/subject you refer to. Just Wierd that i make one implention of taskmgr their where better than the previous then some just take some of the work modify it and credit themself.. i where planning of release the version today with network status and user tab also an vc++ comp. but can see it dont matter.. :-) > > To talk about something else i start a new projekt called CubeOs > > and i would like to know if their are any special copyrights in reactos..? > Just curious: what is the project about? Its an Reactos Clone did alot of work my self and with some developers not to make a competition but to make an alternativ with some of my ideas and visions it has allways been my dream... hope its okay with the reactos team.. By the way thx for your german translation its a littel useless now on reactos but will be very happy to use it on CubeOS Greetz Thomas

20 years, 2 months

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Ros-dev March 2005