question about GlxVisual

[Ian Romanick]

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Wu, Nian wrote:

> Before Otc 18th you changed the GlxVisual related code, there are 17
> visuals, below was the glxinfo's output:

[snip]

> After your commit introduced, there are 39 visuals as the xdpyinfo and
> glxinfo reports:

[snip]

> Why there are so many visual type increased? Some visual are duplicated,
> such as 0x96 and 0x98, 0x97 and 0x99, 0x9c and 0x9e.
> 
> By the way, I use intel driver.

Kristan would be able to answer authoritatively, but I believe the
reason is that glxinfo doesn't show all of the information about the
visual.  I seem to recall that there are some other fields not shown.
The fields likely differ.  10/18 is around the time Kristan added
support for some additional GLX functionality, so it is probably related.
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