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Try to work around an nvidia issue. 

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@6256 fc73d0e0-1445-4013-8a0c-d673dee63da5
This commit is contained in:
Spoike 2022-05-28 18:00:37 +00:00
parent 4fc371c7b4
commit f59283aa56
1 changed files with 13 additions and 2 deletions
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15
engine/gl/gl_vidlinuxglx.c
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@ -4263,9 +4263,20 @@ static qboolean X11VID_Init (rendererstate_t *info, unsigned char *palette, int
#ifdef VKQUAKE
case PSL_VULKAN:
visinfo = &vinfodef;
if (!x11.pXMatchVisualInfo(vid_dpy, scrnum, min(24,info->bpp?info->bpp:DefaultDepth(vid_dpy, scrnum)), TrueColor, visinfo))
//the idea of a x11 server supporting vulkan but greyscale/palette video is just comedic. there will be a truecolor visual option.
//WARNING: nvidia's vulkan drivers might fall back to 8bpc/24.8bpp here, then only allow a 30bit swapchain for that 8bpc surface. this will cause colour screwups. I'm going to call that a driver screwup if its choosing surface formats based on padded depth of the surface's window instead of x11's visuals or unpadded depth.
if (info->bpp>0 && !x11.pXMatchVisualInfo(vid_dpy, scrnum, info->bpp, TrueColor, visinfo))
{
Sys_Error("Couldn't choose visual for vulkan\n");
int defdepth = DefaultDepth(vid_dpy, scrnum);
if (info->bpp!=defdepth && !x11.pXMatchVisualInfo(vid_dpy, scrnum, defdepth, TrueColor, visinfo))
{
if (defdepth!=24 && info->bpp!=24 && !x11.pXMatchVisualInfo(vid_dpy, scrnum, 24, TrueColor, visinfo))
{
Con_Printf("Couldn't choose visual for vulkan (depth %i), try changing vid_bpp\n", info->bpp?info->bpp:DefaultDepth(vid_dpy, scrnum));
GLVID_Shutdown();
return false;
}
}
}
break;
#endif