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Commit ba7db857 authored by Emma Anholt's avatar Emma Anholt Committed by Ian Romanick
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i965: Fix many of the trivial WebGL demos that broke due to IB optimization.

The index buffer state emit only occurred if there was an IB in place
and we were in either a new batch or a new IB state.  But because we
only flagged new IB state if IB state changed from the last IB state
we calculated, we could simply never emit IB state after batchbuffer
wraps if the first draw didn't use the IB and we didn't actually
change the IB.

Fixes piglit glx-multi-context-ib-1.
(cherry picked from commit 818db384)
parent 35bc35a7
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