[Bug 28385] d3d9/query.ok fails on ATI

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=28385

Stefan Dösinger <stefandoesinger at gmx.at> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |stefandoesinger at gmx.at

--- Comment #6 from Stefan Dösinger <stefandoesinger at gmx.at> 2011-09-16 16:48:01 CDT ---
The test causes wined3d to fetch the query result twice after completing an
occlusion query, and expects that the data is available in both cases.
Apparently fglrx removes the result from the GL query object after it has been
retrieved once.

The ARB_occlusion_query doesn't explicitly mention repeated reading of the
query result. Issue 22 says "The result returned from GetQueryObjecti[u]vARB
will always be from the last BeginQueryARB/EndQueryARB pair on that target and
id", but this has a different context(old query results are lost if the query
is restarted). I'll see if newer opengl specs say anything about this, but I
don't really expect them to.

I'll file a bug report in amd's unofficial bugzilla and see if they respond. We
can fix this issue on our side if we want to(store the last result in struct
wined3d_occlusion_query), but we have to take care to discard it when the query
is restarted.

-- 
Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email
Do not reply to this email, post in Bugzilla using the
above URL to reply.
------- You are receiving this mail because: -------
You are watching all bug changes.