minor patch for the opengl-system

[Christoph Frick]

Hi!

I reached the limit of the MAX_PIXELFORMATS ("Maximum number of visuals
reached !") within the game "Grand Prix Legends" using OpenGL for
visualisation. I applied a quick hack to deal with this. I also activated the
code to support the stencil buffer within games. I tested this with
JediKnight2 (shadows now work in mode 2/3). This are just quick hacks that
wokr for me - i not really into X11 programming, so i do not know, if the way
i handle the stuff is correct. I works fine for me on Nvidia 28.80 drivers
under linux 2.4.18.

Thanks BTW for your great work!

CU!
-------------- next part --------------
? patch.diff
? graphics/x11drv/patch.diff
Index: graphics/x11drv/opengl.c
===================================================================
RCS file: /home/wine/wine/graphics/x11drv/opengl.c,v
retrieving revision 1.5
diff -r1.5 opengl.c
97a98
>   int i;
105,112d105
<   /* For the moment, we are dumb : we always allocate a new XVisualInfo structure,
<      we do not try to find an already found that could match */
<   if (physDev->used_visuals == MAX_PIXELFORMATS) {
<     ERR("Maximum number of visuals reached !\n");
<     /* Should SetError here... */
<     return 0;
<   }
< 
129,131c122,124
<      ADD2(GLX_ACCUM_SIZE, ppfd->cAccumBits); 
<      ADD2(GLX_STENCIL_SIZE, ppfd->cStencilBits);
<      ADD2(GLX_AUX_BUFFERS, ppfd->cAuxBuffers); */
---
>      ADD2(GLX_ACCUM_SIZE, ppfd->cAccumBits); */
>   ADD2(GLX_STENCIL_SIZE, ppfd->cStencilBits); /* now suported */
>   /*   ADD2(GLX_AUX_BUFFERS, ppfd->cAuxBuffers); */
138c131
<        
---
> 
155a149,161
>   /* try to find the visualid in the already created visuals */
>   for( i=0; i<physDev->used_visuals; i++ ) {
>     if ( vis->visualid == physDev->visuals[i]->visualid ) {
>       XFree(vis);
>       return i+1;
>     }
>   }
>   /* now give up, if the maximum is reached */
>   if (physDev->used_visuals == MAX_PIXELFORMATS) {
>     ERR("Maximum number of visuals reached !\n");
>     /* Should SetError here... */
>     return 0;
>   }
260a267,271
> 
>   /* stencil bits */
>   glXGetConfig( gdi_display, vis, GLX_STENCIL_SIZE, &value );
>   ppfd->cStencilBits = value;
>   
263c274
<   /* Aux, stencil : to do ... */
---
>   /* Aux : to do ... */