[Bug 18347] intelReadPixels needs to wait for hardware

[<bug...@fr...>]

http://bugs.freedesktop.org/show_bug.cgi?id=18347





--- Comment #8 from Owen Taylor <ot...@re...>  2008-11-05 06:39:01 PST ---
I'll try this evening, but my understanding is no. To quote Keith's mail:

  i915_gem_object_set_domain is also used from the set_domain ioctl. In
  this case, the domains will be mashed and a flush operation pushed into
  the ring, but the object will not be placed on the active list when that
  flush is posted. This means that no-one knows to wait for the operation
  to complete before accessing the object.

and (as far as I recall) I think that the situation I was hitting fit that
situation. So, checking if the texture is on the active list doesn't do
any good if the object didn't get added to the active list.


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