[physfs] Crash when used with SDL 2.0

[Thomas Lokshall]

Yes, both were compiled with the same computer, the same IDE and I've made
sure they were both using the same runtimes.

 - Thomas


2012/11/1 Tai Chi Minh Ralph Eastwood <tcmreastwood at gmail.com>

> Did you compile SDL and PhysFS yourself? It could be that the libraries
> were built with different runtimes (that is, I'm aware of, one of the
> common linking-runtime crash issues with MSVC).
>
> Ralph
>
> On 1 Nov 2012, at 14:11, Thomas Lokshall <thomas.lokshall at gmail.com>
> wrote:
>
> I'm attempting to integrate PhysFS with SDL 2.0 (latest from mercurial)
> and there seems to be a conflict here.
>
> PhysFS 2.0.3 compiles and runs fine with the test program using Visual
> Studio 10.
>
> However, as soon as you introduce SDL to the equation, it causes crashes.
> It compiles fine with no errors.
>
> I made a skeleton program to test this:
>
> /* BEGIN */
>
> #include <stdio.h>
> #include <physfs.h>
>
> int main(int argc, char *argv[])
> {
>   PHYSFS_init(argv[0]);
>   getchar();
>   PHYSFS_deinit();
>   return 0;
> }
>
> /* END */
>
> This program works just fine. However, if you link with SDL and SDLmain
> and change the code to this:
>
> /* BEGIN */
>
> #include <stdio.h>
> #include <physfs.h>
> #include <SDL/SDL.h>
>
> int main(int argc, char *argv[])
> {
>   SDL_Init(SDL_INIT_EVERYTHING);
>   PHYSFS_init(argv[0]);
>   getchar();
>   PHYSFS_deinit();
>   SDL_Quit();
>   return 0;
> }
>
> /* END */
>
> This will cause the application to crash when it's calling PHYSFS_init.
>
> There are a lot of things that seem to go wrong in windows.c
> Most of it seems to be related to the API calls and memory allocation.
> It doesn't matter if SDL is initialized before or after. Just initializing
> it at all causes PhysFS to crash.
>
> The first line that fails during init is line 470 of windows.c:
> wstr = (LPWSTR) __PHYSFS_smallAlloc(psize * sizeof (WCHAR));
>
> I have a hunch that compiling this on other platforms might be more
> successful.
>
> Am I just doing something terribly wrong here or is PhysFS incompatible
> with SDL 2.0?
>
> Regards,
> Thomas Lokshall
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