Re: Breaking the 10-limit : Problems/Questions for Windows build

By switching from a static length array to variable length array 
(allocated by the robot and null terminated)
and with few modifications we could support unlimited number of cars per 
robot.

Eric.

Annick et Jean-Philippe a écrit :
> Hi, All.
>
> I'm working now on breaking the "10 cars per robot" and the "10 human players" 
> limits (that is the "10 interfaces per dynamically loadable module" limit).
>
> For that, I "simply" changed the signature of the init function of a module :
>
> from : typedef int (*tfModInfo)(tModInfo*);
> to   : typedef int (*tfModInfo)(std::vector<tModInfo>&);
>
> This works like a charm under Linux GCC 4.2 (I added an 11th car to BT,
> as an exemple), but under Windows XP VC6 SP6, it's a bit harder ;-)
>
> After some searches on the internet, it seems that to be able to pass
> std::vector across DLLs, ALL the code MUST be linked against
> the "Multi-threaded DLL" (+ debug if relevant) run-time library (MSVCRT)
> (ALL means ANY DLL, static lib and executable).
>
> So, question # 1 :
>    is it a problem that MSVCRT.DLL (and may be 1 or 2 others ?)
>    be distributed with Torcs binaries under Windows ?
>    (as far as I remember, it is not part of Win XP installation).
>
> And, question # 2 :
>    for the moment, I can't make it work (crashes) under Windows because
>    (I suspect) of the static libs and DLLs that are shipped as binaries
>    with Torcs (under src/windows/lib and dll) : may be one of them, at least,
>    was not linked against the Multi-thread DLL ...
>    So, unless you know I'm completly wrong, could you tell me :
>    - the exact versions and name of each used library (GLUT or freeGLUT ?
>      plib, modified? open AL, zlib, libpng)
>    - what modifications, if any, where made in the VC6 project files
>      of these libraries to build them.
>
> And if you have any other suggestions to fix the Windows build ...
>
> Thanks in advance for your help.
>
> Jean-Philippe
>
> PS: If needed, I can also give you the patch ...
>
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