Re: [Dri-devel] [PATCH] per-screen client-side glx extensions

[Keith W. <ke...@tu...>]

Ian Romanick wrote:
> Keith Whitwell wrote:
> 
>> I'm happy to drop these once we have identified & implemented a 
>> suitable replacement.
> 
> 
> There are two ways to go on this.  One way is to make a new 
> GLX_MESA_memory_allocate extension that just extends the existing 
> glXAllocateMemoryNV, glXFreeMemoryNV, and glXGetAGPOffsetMESA to take a 
> display pointer and screen.  This is by far the easiest choice and by 
> far the least forward-looking.
> 
> The other way to go would be to implement support for 
> ARB_vertex_array_object in the r200 driver (which is now part of the 1.5 
> core spec) and add a "trivial" layered extension for pixel data.  Since 
> this extension is now part of the core, and there are existing apps 
> (i.e., UT2k3) that *really* want to use it, this is the most 
> forward-looking approach.  It will also take longer and be a lot more 
> work.  If I'm not mistaken, it will also require merging Mesa 5.1 to 
> DRI...and that ain't gonna happen for awhile.
> 
> So, here's the question of the day:  do you & your customers need the 
> existing functionality in XFree86 or just in the embedded branch?  If 
> the latter, then I'd like to axe it just from the DRI trunk and work 
> towards the 2nd option.

We need it specifically in the DRI.  I'd be relatively happy with the first 
proposal as a stop-gap measure.

Keith