[Mesa-stable] [Mesa-dev] [PATCH 3/4] nine: handle D3DISSUE_END without previous D3DISSUE_BEGIN

[John Ettedgui]

So I tried both code you thought of.

1) Always having end_query did not seem to get a different behavior from my
patch. (I'm sure it does somewhere but I didn't see that in my quick test).

2) Your 2nd code is more problematic (adding the begin_query as needed)
The game completely dies/freezes, and I see this in the log:
"r600_query.c:444:r600_begin_query: Assertion `0' failed."
(I have a radeon card).
The assert comes from this if statement:
"if (!r600_query_needs_begin(rquery->type)) "
Logically I'd say it means that we are running a query_begin when it is not
needed.
The query type is 8 if that helps.

Now there are 2 cases:
1- the radeon code is correct and so we should not add that extra
begin_query
2- the radeon code is incorrect and maybe adding this query_begin is right.
  The i915's code does not do anything for begin or end, so hard to compare
there.
  The svga code switches on the query type, and will assert on the wrong
 ones. I guess it is similar to the radeon's.
  Nouveau also has switches on type, but it does not error on "wrong ones".

What do you think?

John
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