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https://bugs.freedesktop.org/show_bug.cgi?id=4707
------- Additional Comments From [EMAIL PROTECTED] 2006-10-14 03:05 -------
The potential hitch is that you need to make sure this test is reevaluated for
all primitives drawn. Typically the drivers look at the Mesa state and set
hardware state appropriately and then try to avoid re-checking again and again
unless there are actual Mesa statechanges. Unfortunately you now need to do
that because you are basing hardware state off not just Mesa state but what
primitives are coming down the pipe, which Mesa doesn't (yet) consider a
statechange.
At a certain level, if the app requests this state, its' fair enough that it
pays for computing the values. Unless you find a real instance where this is a
problem - ie an app that asks for this state and then doesn't render points
*and* becomes noticably slower as a result, I would consider it not worth
optimizing for.
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