Re: [Mesa3d-dev] Mesa (mesa_7_6_branch): i965: do a flush in clear, fix openarena render issue,

[Zou, N. <nan...@in...>]

>>-----Original Message-----
>>From: Dave Airlie [mailto:ai...@li...]
>>Sent: 2009年9月18日 9:31
>>To: Zou, Nanhai
>>Cc: Brian Paul; mesa3d-dev
>>Subject: Re: [Mesa3d-dev] Mesa (mesa_7_6_branch): i965: do a flush in clear,
>>fix openarena render issue,
>>
>>> >>In general, adding flush() calls is not the correct way to fix bugs
>>> >>(and can impact performance).  This flush is probably hiding the true
>>> >>cause of the bug.  Unfortunately, I don't know what that would be.
>>> >>
>>>
>>> I don't know exactly the reason.
>>> It seems that some rendering is delayed to the next frame.
>>> So I add flush here to make them visible in the current frame.
>>>
>>
>>Is this still being tracked down? we should probably revert the hack if
>>nobody is actually going to look for the proper fix.
>>

I have replaced the intelFlush to a intel_batchbuffer_flush, then benchmark it with ut2004 demo.
Found almost no regression.

Thanks
Zou Nan hai
>>
>>Dave.