127 lines
5.8 KiB
Plaintext
127 lines
5.8 KiB
Plaintext
This file contains information on the implementation of the direct play
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and direct play lobby features. There's lots to do and I'm not exactly
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implementing it overnight! Please lend a hand.
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Most methods and APIs are but stubs at this point. Examine the code
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to see what has been implemented. Use -debugmsg +dplay to get a
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reasonably thourough description of what's going on.
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Associated DirectX user header files are include/dplay.h, include/dplobby.h.
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Implementation of the DPLAY and DPLAYX dlls are both in the dlls/dplayx
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directory.
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dplay.c: Implementation of all the direct play object interfaces.
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dplobby.c: Implementation of all the direct play lobby interfaces.
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dpclassfactory.c: Implementation of the COM class factory which can create either
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direct play lobby or direct play lobby interfaces.
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dplayx_global.c: Implementation of all things which are associated with dplay on
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the computer - ie shared resources and such. Methods in this
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compilation unit should not call anything out side this unit.
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name_server.c: Implementation of all things which are associated with the name
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server functionality
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dplayx_main.c: LibMain executed for loading and unloading the dll. This will make
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the call to dplayx_global.c to request initialization and destruction
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of any global data.
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Presently the architectural relationship between this files is a little shakey, but
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isn't so sufficiently bad that it needs fixing yet.
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I think I can safely say that any application which requires direct play
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or direct play lobby will not work at this point. Priority will be to get
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examples from the sdk running. Once they're at least partially working, I can
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get down to trying to get some of the games working.
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A small issue will be the fact that DirectX 6.1(ie. DirectPlay4) introduces a layer of functionality
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inside the DP objects which provide guaranteed protocol delivery. This is
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even if the native protocol, IPX or modem for instance, doesn't guarantee it. I'm going to leave
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this kind of implementation to as close to the end as possible. However, I
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will implement an abstraction layer, where possible, for this functionality.
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It will do nothing to start, but will require only the implementation of the
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guaranteness to give final implementation.
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TODO:
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- (done) Header files for DP4 and DPL3
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- (done) Add stub functions for all DP4 and DPL3 interfaces
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- (done) Correct naming of the parameters for DP3 and DPL2
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- (done) Seperate out DP and DPL into multiple .c files
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- (done) Allow CoCreateInstance to create the new interfaces
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- (started)Implement mutual exclusion on object data for existing functions
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- (done) Create and move to correct dll directories (dplay and dplayx)
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- (done) Implement dplay in terms of dplayx
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- (done) Need a better internal implementation for the objects which scales and
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preferably doesn't involve casting structures. Solution is a crude ctor/dtor
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which can actually trap some runtime errors.
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- (done) More generic initialization and destruction helper methods based off
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the chosen internal implementation. Solution is a crude ctor/dtor.
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- Use only windows routines where an equivalent is available
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- (done) Fix wine dplay.h and dplobby.h header files to allow apps to create the ansi versions
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- (started) Port some WineLib test programs using sdk programs (both C and C++ progs)
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- (done) Implement a lib main for the dplayx dll (required for RunApplication, etc.)
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- Figure out how to share the global memory correctly
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- Ensure that all dll stubs are present and the ordinals are correct
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- (started) Implementation of functionality
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- Addition of DirectX 7.0 functionality for direct play (try to catch that moving train)
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- bug fixes ;)
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- Implement some WineLib test programs using sdk programs as a skeleton
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- (done) Change all RegEnumKey calls to RegEnumKeyEx.
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- Change RegEnumKeyEx enumeration pattern to allow error handling and to
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share registry implementation (or at least simplify).
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- Add in appropriate RegCloseKey calls for all the opening we're doing...
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- Fix all the buffer sizes for registry calls. They're off by one - but in a safe direction.
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- Find out how to call the service provider dlls - they don't have a published interface!
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- Fix race condition on interface destruction
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- Handles need to be correctly reference counted
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- Need to check if we need to deallocate any list objects when destroying
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dplay interface
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Programs to make work:
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- lserver.exe (from sdk)
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- override.exe (from sdk)
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- dpchat.exe (from sdk)
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- duel.exe (from sdk)
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- dplaunch.exe (from sdk)
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Next API to implement on a per SDK program basis:
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override.exe
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- fixme:dplay:DirectPlayCreate Modem binding not supported yet
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- DirectPlay3AImpl_InitializeConnection
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- DirectPlay2AImpl_Open
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- ?
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dplaunch.exe
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- IDirectPlayLobbyAImpl_RunApplication
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(need address space separation or else rebuild all sdk examples)
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lserver.exe
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- IDirectPlayLobby2WImpl_Connect
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- fixme:dplay:DirectPlayCreate Modem binding not supported yet
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- IDirectPlay3WImpl_CreatePlayer
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- IDirectPlay3WImpl_CreateGroup
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- IDirectPlay3WImpl_SetGroupData
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- IDirectPlay3WImpl_Send
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- ?
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bellhop.exe
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- DP_SendSessionRequestBroadcast (implement the name server stuff)
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- ?
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dpslots.exe
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- IDirectPlayLobby3AImpl_ConnectEx
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- ?
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override.exe
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- DirectPlayCreate Service provider binding not supported yet
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- ?
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Other TODO:
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- look at problem with parsing the resource file for dplaunch. wrc problem?
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- I should be getting the dialog box to come up for dpchat when something is selected
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Call OLE32.7: CoCreateInstance(010017f0,00000000,00000001,010017e0,010094b4) ret=01002f38 fs=0237
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Call ADVAPI32.188: RegOpenKeyExA(80000002,5e08dd90 "Software\\Microsoft\\DirectPlay\\Compatibility",00000000,00020019,40e7f49c) ret=5e0b6e5a fs=0237
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Peter Hunnisett - hunnise@nortelnetworks.com
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