https://bugs.freedesktop.org/show_bug.cgi?id=98139
--- Comment #3 from Chris Wilson <[email protected]> ---
(In reply to Nicolai Hähnle from comment #2)
> I disagree. OpenGL 4.5 (Compatibility Profile), page 48 (5th paragraph after
> the listing of GetQuery[Buffer]Object*) says:
>
> "If pname is QUERY_RESULT, then the query object’s result value is returned
> as a single integer. If the value is so large in magnitude that it cannot be
> represented with the requested type, then ***the nearest value***
> representable using the requested type is returned."
Which is what mesa does.
> Furthermore, whether the value is saturated or truncated doesn't even matter
> for this particular part of the test.
The result from the CPU read is then used for an exact comparison with the full
result read via the GPU. It matters.
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