[Bug 35144] r300g should advertise GL_ARB_half_float_vertex on rv350

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=35144

--- Comment #2 from Álmos <aaalmosss at gmail.com> 2011-03-09 09:52:44 PST ---
(In reply to comment #1)
> rv350 really can't do ARB_half_float_vertex. I tested it on RV350 long time ago
> and it locked up pretty hard. fglrx lies and uses some fallback probably. If
> you really need this extension, I can enable the fallback for r300g too.
It's not terribly important. I just noticed this inconsistency and decided to
ask if it is known. The fallback would be useful only if there were some really
important applications (like compiz or googleearth) requiring this extension,
but I don't think there are any.

> r3xx cannot do GL_EXT_texture_swizzle with compressed textures, so it's
> disabled if the S3TC lib is available and enabled otherwise. fglrx here lies
> again and I don't think they use any kind of fallback.
Sounds nasty. Maybe these quirks should be documented somewhere...

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