D3D 11 Query result warning

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ID3D11DeviceContext::Begin: Begin is being invoked on a Query, where the previous results have not been obtained with GetData. This is valid; but unusual

D3D11 issues a warning. See tests for streamout.

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Observed the problem and it may not be fixable. The query is done independently of the render call, or where the streamed out data is used.

The query is done if the streamout being/end. If auto_draw is used, that result is not used. auto_draw knows that already and may not use a CPU round-trip. I did not decide for now where that is used, so this one is not fixable yet.

use( streamout ) <- query begin
unuse( streamout)  <- query end

render( streamed out data ) <- may or may not use auto_draw...

d3d11 auto_draw does not need the captured number of primitives because it is auto => less CPU trips.